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+(Network Working Group                                          T. Ylonen) s
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+(Internet-Draft                          SSH Communications Security Corp) s
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+(Expires: March 31, 2004                           D. Moffat, Editor, Ed.) s
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+(                                                   Sun Microsystems, Inc) s
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+(                                                                Oct 2003) s
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+(                        SSH Connection Protocol) s
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+(                    draft-ietf-secsh-connect-18.txt) s
+5 591 M
+(Status of this Memo) s
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+(   This document is an Internet-Draft and is in full conformance with) s
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+(   all provisions of Section 10 of RFC2026.) s
+5 536 M
+(   Internet-Drafts are working documents of the Internet Engineering) s
+5 525 M
+(   Task Force \(IETF\), its areas, and its working groups. Note that other) s
+5 514 M
+(   groups may also distribute working documents as Internet-Drafts.) s
+5 492 M
+(   Internet-Drafts are draft documents valid for a maximum of six months) s
+5 481 M
+(   and may be updated, replaced, or obsoleted by other documents at any) s
+5 470 M
+(   time. It is inappropriate to use Internet-Drafts as reference) s
+5 459 M
+(   material or to cite them other than as "work in progress.") s
+5 437 M
+(   The list of current Internet-Drafts can be accessed at http://) s
+5 426 M
+(   www.ietf.org/ietf/1id-abstracts.txt.) s
+5 404 M
+(   The list of Internet-Draft Shadow Directories can be accessed at) s
+5 393 M
+(   http://www.ietf.org/shadow.html.) s
+5 371 M
+(   This Internet-Draft will expire on March 31, 2004.) s
+5 349 M
+(Copyright Notice) s
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+(   Copyright \(C\) The Internet Society \(2003\). All Rights Reserved.) s
+5 305 M
+(Abstract) s
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+(   SSH is a protocol for secure remote login and other secure network) s
+5 272 M
+(   services over an insecure network.) s
+5 250 M
+(   This document describes the SSH Connection Protocol. It provides) s
+5 239 M
+(   interactive login sessions, remote execution of commands, forwarded) s
+5 228 M
+(   TCP/IP connections, and forwarded X11 connections. All of these) s
+5 217 M
+(   channels are multiplexed into a single encrypted tunnel.) s
+5 195 M
+(   The SSH Connection Protocol has been designed to run on top of the) s
+5 184 M
+(   SSH transport layer and user authentication protocols.) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004               [Page 1]) s
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+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
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+(Table of Contents) s
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+(   1.    Contributors . . . . . . . . . . . . . . . . . . . . . . . .  3) s
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+(   2.    Introduction . . . . . . . . . . . . . . . . . . . . . . . .  3) s
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+(   3.    Conventions Used in This Document  . . . . . . . . . . . . .  3) s
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+(   4.    Global Requests  . . . . . . . . . . . . . . . . . . . . . .  3) s
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+(   5.    Channel Mechanism  . . . . . . . . . . . . . . . . . . . . .  4) s
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+(   5.1   Opening a Channel  . . . . . . . . . . . . . . . . . . . . .  4) s
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+(   5.2   Data Transfer  . . . . . . . . . . . . . . . . . . . . . . .  5) s
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+(   5.3   Closing a Channel  . . . . . . . . . . . . . . . . . . . . .  6) s
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+(   5.4   Channel-Specific Requests  . . . . . . . . . . . . . . . . .  7) s
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+(   6.    Interactive Sessions . . . . . . . . . . . . . . . . . . . .  8) s
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+(   6.1   Opening a Session  . . . . . . . . . . . . . . . . . . . . .  8) s
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+(   6.2   Requesting a Pseudo-Terminal . . . . . . . . . . . . . . . .  8) s
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+(   6.3   X11 Forwarding . . . . . . . . . . . . . . . . . . . . . . .  9) s
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+(   6.4   Environment Variable Passing . . . . . . . . . . . . . . . . 10) s
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+(   6.5   Starting a Shell or a Command  . . . . . . . . . . . . . . . 10) s
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+(   6.6   Session Data Transfer  . . . . . . . . . . . . . . . . . . . 11) s
+5 470 M
+(   6.7   Window Dimension Change Message  . . . . . . . . . . . . . . 12) s
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+(   6.8   Local Flow Control . . . . . . . . . . . . . . . . . . . . . 12) s
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+(   6.9   Signals  . . . . . . . . . . . . . . . . . . . . . . . . . . 12) s
+5 437 M
+(   6.10  Returning Exit Status  . . . . . . . . . . . . . . . . . . . 13) s
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+(   7.    TCP/IP Port Forwarding . . . . . . . . . . . . . . . . . . . 14) s
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+(   7.1   Requesting Port Forwarding . . . . . . . . . . . . . . . . . 14) s
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+(   7.2   TCP/IP Forwarding Channels . . . . . . . . . . . . . . . . . 15) s
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+(   8.    Encoding of Terminal Modes . . . . . . . . . . . . . . . . . 16) s
+5 382 M
+(   9.    Summary of Message Numbers . . . . . . . . . . . . . . . . . 18) s
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+(   10.   Security Considerations  . . . . . . . . . . . . . . . . . . 18) s
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+(   11.   iana cONSiderations  . . . . . . . . . . . . . . . . . . . . 19) s
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+(   12.   Intellectual Property  . . . . . . . . . . . . . . . . . . . 19) s
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+(         Normative References . . . . . . . . . . . . . . . . . . . . 19) s
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+(         Informative References . . . . . . . . . . . . . . . . . . . 20) s
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+(         Authors' Addresses . . . . . . . . . . . . . . . . . . . . . 20) s
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+(         Intellectual Property and Copyright Statements . . . . . . . 21) s
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+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
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+(1. Contributors) s
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+(   The major original contributors of this document were: Tatu Ylonen,) s
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+(   Tero Kivinen, Timo J. Rinne, Sami Lehtinen \(all of SSH Communications) s
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+(   Security Corp\), and Markku-Juhani O. Saarinen \(University of) s
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+(   Jyvaskyla\)) s
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+(   The document editor is: [email protected].  Comments on this) s
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+(   internet draft should be sent to the IETF SECSH working group,) s
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+(   details at: http://ietf.org/html.charters/secsh-charter.html) s
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+(2. Introduction) s
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+(   The SSH Connection Protocol has been designed to run on top of the) s
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+(   SSH transport layer and user authentication protocols. It provides) s
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+(   interactive login sessions, remote execution of commands, forwarded) s
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+(   TCP/IP connections, and forwarded X11 connections. The service name) s
+5 503 M
+(   for this protocol is "ssh-connection".) s
+5 481 M
+(   This document should be read only after reading the SSH architecture) s
+5 470 M
+(   document [SSH-ARCH]. This document freely uses terminology and) s
+5 459 M
+(   notation from the architecture document without reference or further) s
+5 448 M
+(   explanation.) s
+5 426 M
+(3. Conventions Used in This Document) s
+5 404 M
+(   The keywords "MUST", "MUST NOT", "REQUIRED", "SHOULD", "SHOULD NOT",) s
+5 393 M
+(   and "MAY" that appear in this document are to be interpreted as) s
+5 382 M
+(   described in [RFC2119].) s
+5 360 M
+(   The used data types and terminology are specified in the architecture) s
+5 349 M
+(   document [SSH-ARCH].) s
+5 327 M
+(   The architecture document also discusses the algorithm naming) s
+5 316 M
+(   conventions that MUST be used with the SSH protocols.) s
+5 294 M
+(4. Global Requests) s
+5 272 M
+(   There are several kinds of requests that affect the state of the) s
+5 261 M
+(   remote end "globally", independent of any channels.  An example is a) s
+5 250 M
+(   request to start TCP/IP forwarding for a specific port.  All such) s
+5 239 M
+(   requests use the following format.) s
+5 217 M
+(     byte      SSH_MSG_GLOBAL_REQUEST) s
+5 206 M
+(     string    request name \(restricted to US-ASCII\)) s
+5 195 M
+(     boolean   want reply) s
+5 184 M
+(     ... request-specific data follows) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004               [Page 3]) s
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+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   Request names follow the DNS extensibility naming convention outlined) s
+5 679 M
+(   in [SSH-ARCH].) s
+5 657 M
+(   The recipient will respond to this message with) s
+5 646 M
+(   SSH_MSG_REQUEST_SUCCESS or SSH_MSG_REQUEST_FAILURE if `want reply' is) s
+5 635 M
+(   TRUE.) s
+5 613 M
+(     byte      SSH_MSG_REQUEST_SUCCESS) s
+5 602 M
+(     .....     response specific data) s
+5 580 M
+(   Usually the response specific data is non-existent.) s
+5 558 M
+(   If the recipient does not recognize or support the request, it simply) s
+5 547 M
+(   responds with SSH_MSG_REQUEST_FAILURE.) s
+5 525 M
+(     byte      SSH_MSG_REQUEST_FAILURE) s
+5 492 M
+(5. Channel Mechanism) s
+5 470 M
+(   All terminal sessions, forwarded connections, etc. are channels.) s
+5 459 M
+(   Either side may open a channel.  Multiple channels are multiplexed) s
+5 448 M
+(   into a single connection.) s
+5 426 M
+(   Channels are identified by numbers at each end.  The number referring) s
+5 415 M
+(   to a channel may be different on each side.  Requests to open a) s
+5 404 M
+(   channel contain the sender's channel number.  Any other) s
+5 393 M
+(   channel-related messages contain the recipient's channel number for) s
+5 382 M
+(   the channel.) s
+5 360 M
+(   Channels are flow-controlled.  No data may be sent to a channel until) s
+5 349 M
+(   a message is received to indicate that window space is available.) s
+5 327 M
+(5.1 Opening a Channel) s
+5 305 M
+(   When either side wishes to open a new channel, it allocates a local) s
+5 294 M
+(   number for the channel.  It then sends the following message to the) s
+5 283 M
+(   other side, and includes the local channel number and initial window) s
+5 272 M
+(   size in the message.) s
+5 250 M
+(     byte      SSH_MSG_CHANNEL_OPEN) s
+5 239 M
+(     string    channel type \(restricted to US-ASCII\)) s
+5 228 M
+(     uint32    sender channel) s
+5 217 M
+(     uint32    initial window size) s
+5 206 M
+(     uint32    maximum packet size) s
+5 195 M
+(     ... channel type specific data follows) s
+5 173 M
+(   The channel type is a name as described in the SSH architecture) s
+5 129 M
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+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   document, with similar extension mechanisms. `sender channel' is a) s
+5 679 M
+(   local identifier for the channel used by the sender of this message.) s
+5 668 M
+(   `initial window size' specifies how many bytes of channel data can be) s
+5 657 M
+(   sent to the sender of this message without adjusting the window.) s
+5 646 M
+(   `Maximum packet size' specifies the maximum size of an individual) s
+5 635 M
+(   data packet that can be sent to the sender \(for example, one might) s
+5 624 M
+(   want to use smaller packets for interactive connections to get better) s
+5 613 M
+(   interactive response on slow links\).) s
+5 591 M
+(   The remote side then decides whether it can open the channel, and) s
+5 580 M
+(   responds with either) s
+5 558 M
+(     byte      SSH_MSG_CHANNEL_OPEN_CONFIRMATION) s
+5 547 M
+(     uint32    recipient channel) s
+5 536 M
+(     uint32    sender channel) s
+5 525 M
+(     uint32    initial window size) s
+5 514 M
+(     uint32    maximum packet size) s
+5 503 M
+(     ... channel type specific data follows) s
+5 481 M
+(   where `recipient channel' is the channel number given in the original) s
+5 470 M
+(   open request, and `sender channel' is the channel number allocated by) s
+5 459 M
+(   the other side, or) s
+5 437 M
+(     byte      SSH_MSG_CHANNEL_OPEN_FAILURE) s
+5 426 M
+(     uint32    recipient channel) s
+5 415 M
+(     uint32    reason code) s
+5 404 M
+(     string    additional textual information \(ISO-10646 UTF-8 [RFC2279]\)) s
+5 393 M
+(     string    language tag \(as defined in [RFC3066]\)) s
+5 371 M
+(   If the recipient of the SSH_MSG_CHANNEL_OPEN message does not support) s
+5 360 M
+(   the specified channel type, it simply responds with) s
+5 349 M
+(   SSH_MSG_CHANNEL_OPEN_FAILURE. The client MAY show the additional) s
+5 338 M
+(   information to the user. If this is done, the client software should) s
+5 327 M
+(   take the precautions discussed in [SSH-ARCH].) s
+5 305 M
+(   The following reason codes are defined:) s
+5 283 M
+(     #define SSH_OPEN_ADMINISTRATIVELY_PROHIBITED    1) s
+5 272 M
+(     #define SSH_OPEN_CONNECT_FAILED                 2) s
+5 261 M
+(     #define SSH_OPEN_UNKNOWN_CHANNEL_TYPE           3) s
+5 250 M
+(     #define SSH_OPEN_RESOURCE_SHORTAGE              4) s
+5 217 M
+(5.2 Data Transfer) s
+5 195 M
+(   The window size specifies how many bytes the other party can send) s
+5 184 M
+(   before it must wait for the window to be adjusted.  Both parties use) s
+5 173 M
+(   the following message to adjust the window.) s
+5 129 M
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(     byte      SSH_MSG_CHANNEL_WINDOW_ADJUST) s
+5 679 M
+(     uint32    recipient channel) s
+5 668 M
+(     uint32    bytes to add) s
+5 646 M
+(   After receiving this message, the recipient MAY send the given number) s
+5 635 M
+(   of bytes more than it was previously allowed to send; the window size) s
+5 624 M
+(   is incremented.) s
+5 602 M
+(   Data transfer is done with messages of the following type.) s
+5 580 M
+(     byte      SSH_MSG_CHANNEL_DATA) s
+5 569 M
+(     uint32    recipient channel) s
+5 558 M
+(     string    data) s
+5 536 M
+(   The maximum amount of data allowed is the current window size.  The) s
+5 525 M
+(   window size is decremented by the amount of data sent. Both parties) s
+5 514 M
+(   MAY ignore all extra data sent after the allowed window is empty.) s
+5 492 M
+(   Additionally, some channels can transfer several types of data.  An) s
+5 481 M
+(   example of this is stderr data from interactive sessions. Such data) s
+5 470 M
+(   can be passed with SSH_MSG_CHANNEL_EXTENDED_DATA messages, where a) s
+5 459 M
+(   separate integer specifies the type of the data.  The available types) s
+5 448 M
+(   and their interpretation depend on the type of the channel.) s
+5 426 M
+(     byte      SSH_MSG_CHANNEL_EXTENDED_DATA) s
+5 415 M
+(     uint32    recipient_channel) s
+5 404 M
+(     uint32    data_type_code) s
+5 393 M
+(     string    data) s
+5 371 M
+(   Data sent with these messages consumes the same window as ordinary) s
+5 360 M
+(   data.) s
+5 338 M
+(   Currently, only the following type is defined.) s
+5 316 M
+(   #define SSH_EXTENDED_DATA_STDERR                1) s
+5 283 M
+(5.3 Closing a Channel) s
+5 261 M
+(   When a party will no longer send more data to a channel, it SHOULD) s
+5 250 M
+(   send SSH_MSG_CHANNEL_EOF.) s
+5 228 M
+(     byte      SSH_MSG_CHANNEL_EOF) s
+5 217 M
+(     uint32    recipient_channel) s
+5 195 M
+(   No explicit response is sent to this message; however, the) s
+5 184 M
+(   application may send EOF to whatever is at the other end of the) s
+5 173 M
+(   channel.  Note that the channel remains open after this message, and) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004               [Page 6]) s
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+/fname () def
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+/user_header_p false def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   more data may still be sent in the other direction.  This message) s
+5 679 M
+(   does not consume window space and can be sent even if no window space) s
+5 668 M
+(   is available.) s
+5 646 M
+(   When either party wishes to terminate the channel, it sends) s
+5 635 M
+(   SSH_MSG_CHANNEL_CLOSE.  Upon receiving this message, a party MUST) s
+5 624 M
+(   send back a SSH_MSG_CHANNEL_CLOSE unless it has already sent this) s
+5 613 M
+(   message for the channel.  The channel is considered closed for a) s
+5 602 M
+(   party when it has both sent and received SSH_MSG_CHANNEL_CLOSE, and) s
+5 591 M
+(   the party may then reuse the channel number.  A party MAY send) s
+5 580 M
+(   SSH_MSG_CHANNEL_CLOSE without having sent or received) s
+5 569 M
+(   SSH_MSG_CHANNEL_EOF.) s
+5 547 M
+(     byte      SSH_MSG_CHANNEL_CLOSE) s
+5 536 M
+(     uint32    recipient_channel) s
+5 514 M
+(   This message does not consume window space and can be sent even if no) s
+5 503 M
+(   window space is available.) s
+5 481 M
+(   It is recommended that any data sent before this message is delivered) s
+5 470 M
+(   to the actual destination, if possible.) s
+5 448 M
+(5.4 Channel-Specific Requests) s
+5 426 M
+(   Many channel types have extensions that are specific to that) s
+5 415 M
+(   particular channel type.  An example is requesting a pty \(pseudo) s
+5 404 M
+(   terminal\) for an interactive session.) s
+5 382 M
+(   All channel-specific requests use the following format.) s
+5 360 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 349 M
+(     uint32    recipient channel) s
+5 338 M
+(     string    request type \(restricted to US-ASCII\)) s
+5 327 M
+(     boolean   want reply) s
+5 316 M
+(     ... type-specific data) s
+5 294 M
+(   If want reply is FALSE, no response will be sent to the request.) s
+5 283 M
+(   Otherwise, the recipient responds with either SSH_MSG_CHANNEL_SUCCESS) s
+5 272 M
+(   or SSH_MSG_CHANNEL_FAILURE, or request-specific continuation) s
+5 261 M
+(   messages. If the request is not recognized or is not supported for) s
+5 250 M
+(   the channel, SSH_MSG_CHANNEL_FAILURE is returned.) s
+5 228 M
+(   This message does not consume window space and can be sent even if no) s
+5 217 M
+(   window space is available. Request types are local to each channel) s
+5 206 M
+(   type.) s
+5 184 M
+(   The client is allowed to send further messages without waiting for) s
+5 173 M
+(   the response to the request.) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004               [Page 7]) s
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+%%BeginPageSetup
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+75 0 translate
+/pagenum 8 def
+/fname () def
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+/ftail () def
+/user_header_p false def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   request type names follow the DNS extensibility naming convention) s
+5 679 M
+(   outlined in [SSH-ARCH]) s
+5 657 M
+(     byte      SSH_MSG_CHANNEL_SUCCESS) s
+5 646 M
+(     uint32    recipient_channel) s
+5 613 M
+(     byte      SSH_MSG_CHANNEL_FAILURE) s
+5 602 M
+(     uint32    recipient_channel) s
+5 580 M
+(   These messages do not consume window space and can be sent even if no) s
+5 569 M
+(   window space is available.) s
+5 547 M
+(6. Interactive Sessions) s
+5 525 M
+(   A session is a remote execution of a program.  The program may be a) s
+5 514 M
+(   shell, an application, a system command, or some built-in subsystem.) s
+5 503 M
+(   It may or may not have a tty, and may or may not involve X11) s
+5 492 M
+(   forwarding. Multiple sessions can be active simultaneously.) s
+5 470 M
+(6.1 Opening a Session) s
+5 448 M
+(   A session is started by sending the following message.) s
+5 426 M
+(     byte      SSH_MSG_CHANNEL_OPEN) s
+5 415 M
+(     string    "session") s
+5 404 M
+(     uint32    sender channel) s
+5 393 M
+(     uint32    initial window size) s
+5 382 M
+(     uint32    maximum packet size) s
+5 360 M
+(   Client implementations SHOULD reject any session channel open) s
+5 349 M
+(   requests to make it more difficult for a corrupt server to attack the) s
+5 338 M
+(   client.) s
+5 316 M
+(6.2 Requesting a Pseudo-Terminal) s
+5 294 M
+(   A pseudo-terminal can be allocated for the session by sending the) s
+5 283 M
+(   following message.) s
+5 261 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 250 M
+(     uint32    recipient_channel) s
+5 239 M
+(     string    "pty-req") s
+5 228 M
+(     boolean   want_reply) s
+5 217 M
+(     string    TERM environment variable value \(e.g., vt100\)) s
+5 206 M
+(     uint32    terminal width, characters \(e.g., 80\)) s
+5 195 M
+(     uint32    terminal height, rows \(e.g., 24\)) s
+5 184 M
+(     uint32    terminal width, pixels \(e.g., 640\)) s
+5 173 M
+(     uint32    terminal height, pixels \(e.g., 480\)) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004               [Page 8]) s
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(     string    encoded terminal modes) s
+5 668 M
+(   The encoding of terminal modes is described in Section Encoding of) s
+5 657 M
+(   Terminal Modes \(Section 8\). Zero dimension parameters MUST be) s
+5 646 M
+(   ignored. The character/row dimensions override the pixel dimensions) s
+5 635 M
+(   \(when nonzero\). Pixel dimensions refer to the drawable area of the) s
+5 624 M
+(   window.) s
+5 602 M
+(   The dimension parameters are only informational.) s
+5 580 M
+(   The client SHOULD ignore pty requests.) s
+5 558 M
+(6.3 X11 Forwarding) s
+5 536 M
+(6.3.1 Requesting X11 Forwarding) s
+5 514 M
+(   X11 forwarding may be requested for a session by sending) s
+5 492 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 481 M
+(     uint32    recipient channel) s
+5 470 M
+(     string    "x11-req") s
+5 459 M
+(     boolean   want reply) s
+5 448 M
+(     boolean   single connection) s
+5 437 M
+(     string    x11 authentication protocol) s
+5 426 M
+(     string    x11 authentication cookie) s
+5 415 M
+(     uint32    x11 screen number) s
+5 393 M
+(   It is recommended that the authentication cookie that is sent be a) s
+5 382 M
+(   fake, random cookie, and that the cookie is checked and replaced by) s
+5 371 M
+(   the real cookie when a connection request is received.) s
+5 349 M
+(   X11 connection forwarding should stop when the session channel is) s
+5 338 M
+(   closed; however, already opened forwardings should not be) s
+5 327 M
+(   automatically closed when the session channel is closed.) s
+5 305 M
+(   If `single connection' is TRUE, only a single connection should be) s
+5 294 M
+(   forwarded.  No more connections will be forwarded after the first, or) s
+5 283 M
+(   after the session channel has been closed.) s
+5 261 M
+(   The "x11 authentication protocol" is the name of the X11) s
+5 250 M
+(   authentication method used, e.g. "MIT-MAGIC-COOKIE-1".) s
+5 228 M
+(   The x11 authentication cookie MUST be hexadecimal encoded.) s
+5 206 M
+(   X Protocol is documented in [SCHEIFLER].) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004               [Page 9]) s
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+/fname () def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(6.3.2 X11 Channels) s
+5 668 M
+(   X11 channels are opened with a channel open request.  The resulting) s
+5 657 M
+(   channels are independent of the session, and closing the session) s
+5 646 M
+(   channel does not close the forwarded X11 channels.) s
+5 624 M
+(     byte      SSH_MSG_CHANNEL_OPEN) s
+5 613 M
+(     string    "x11") s
+5 602 M
+(     uint32    sender channel) s
+5 591 M
+(     uint32    initial window size) s
+5 580 M
+(     uint32    maximum packet size) s
+5 569 M
+(     string    originator address \(e.g. "192.168.7.38"\)) s
+5 558 M
+(     uint32    originator port) s
+5 536 M
+(   The recipient should respond with SSH_MSG_CHANNEL_OPEN_CONFIRMATION) s
+5 525 M
+(   or SSH_MSG_CHANNEL_OPEN_FAILURE.) s
+5 503 M
+(   Implementations MUST reject any X11 channel open requests if they) s
+5 492 M
+(   have not requested X11 forwarding.) s
+5 470 M
+(6.4 Environment Variable Passing) s
+5 448 M
+(   Environment variables may be passed to the shell/command to be) s
+5 437 M
+(   started later. Uncontrolled setting of environment variables in a) s
+5 426 M
+(   privileged process can be a security hazard.  It is recommended that) s
+5 415 M
+(   implementations either maintain a list of allowable variable names or) s
+5 404 M
+(   only set environment variables after the server process has dropped) s
+5 393 M
+(   sufficient privileges.) s
+5 371 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 360 M
+(     uint32    recipient channel) s
+5 349 M
+(     string    "env") s
+5 338 M
+(     boolean   want reply) s
+5 327 M
+(     string    variable name) s
+5 316 M
+(     string    variable value) s
+5 283 M
+(6.5 Starting a Shell or a Command) s
+5 261 M
+(   Once the session has been set up, a program is started at the remote) s
+5 250 M
+(   end. The program can be a shell, an application program or a) s
+5 239 M
+(   subsystem with a host-independent name.  Only one of these requests) s
+5 228 M
+(   can succeed per channel.) s
+5 206 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 195 M
+(     uint32    recipient channel) s
+5 184 M
+(     string    "shell") s
+5 173 M
+(     boolean   want reply) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 10]) s
+_R
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+/fname () def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   This message will request the user's default shell \(typically defined) s
+5 679 M
+(   in /etc/passwd in UNIX systems\) to be started at the other end.) s
+5 657 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 646 M
+(     uint32    recipient channel) s
+5 635 M
+(     string    "exec") s
+5 624 M
+(     boolean   want reply) s
+5 613 M
+(     string    command) s
+5 591 M
+(   This message will request the server to start the execution of the) s
+5 580 M
+(   given command. The command string may contain a path. Normal) s
+5 569 M
+(   precautions MUST be taken to prevent the execution of unauthorized) s
+5 558 M
+(   commands.) s
+5 536 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 525 M
+(     uint32    recipient channel) s
+5 514 M
+(     string    "subsystem") s
+5 503 M
+(     boolean   want reply) s
+5 492 M
+(     string    subsystem name) s
+5 470 M
+(   This last form executes a predefined subsystem.  It is expected that) s
+5 459 M
+(   these will include a general file transfer mechanism, and possibly) s
+5 448 M
+(   other features.  Implementations may also allow configuring more such) s
+5 437 M
+(   mechanisms. As the user's shell is usually used to execute the) s
+5 426 M
+(   subsystem, it is advisable for the subsystem protocol to have a) s
+5 415 M
+(   "magic cookie" at the beginning of the protocol transaction to) s
+5 404 M
+(   distinguish it from arbitrary output generated by shell) s
+5 393 M
+(   initialization scripts etc. This spurious output from the shell may) s
+5 382 M
+(   be filtered out either at the server or at the client.) s
+5 360 M
+(   The server SHOULD not halt the execution of the protocol stack when) s
+5 349 M
+(   starting a shell or a program. All input and output from these SHOULD) s
+5 338 M
+(   be redirected to the channel or to the encrypted tunnel.) s
+5 316 M
+(   It is RECOMMENDED to request and check the reply for these messages.) s
+5 305 M
+(   The client SHOULD ignore these messages.) s
+5 283 M
+(   Subsystem names follow the DNS extensibility naming convention) s
+5 272 M
+(   outlined in [SSH-ARCH].) s
+5 250 M
+(6.6 Session Data Transfer) s
+5 228 M
+(   Data transfer for a session is done using SSH_MSG_CHANNEL_DATA and) s
+5 217 M
+(   SSH_MSG_CHANNEL_EXTENDED_DATA packets and the window mechanism.  The) s
+5 206 M
+(   extended data type SSH_EXTENDED_DATA_STDERR has been defined for) s
+5 195 M
+(   stderr data.) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 11]) s
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+S
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+/pagenum 12 def
+/fname () def
+/fdir () def
+/ftail () def
+/user_header_p false def
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+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(6.7 Window Dimension Change Message) s
+5 668 M
+(   When the window \(terminal\) size changes on the client side, it MAY) s
+5 657 M
+(   send a message to the other side to inform it of the new dimensions.) s
+5 635 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 624 M
+(     uint32    recipient_channel) s
+5 613 M
+(     string    "window-change") s
+5 602 M
+(     boolean   FALSE) s
+5 591 M
+(     uint32    terminal width, columns) s
+5 580 M
+(     uint32    terminal height, rows) s
+5 569 M
+(     uint32    terminal width, pixels) s
+5 558 M
+(     uint32    terminal height, pixels) s
+5 536 M
+(    No response SHOULD be sent to this message.) s
+5 514 M
+(6.8 Local Flow Control) s
+5 492 M
+(   On many systems, it is possible to determine if a pseudo-terminal is) s
+5 481 M
+(   using control-S/control-Q flow control.  When flow control is) s
+5 470 M
+(   allowed, it is often desirable to do the flow control at the client) s
+5 459 M
+(   end to speed up responses to user requests.  This is facilitated by) s
+5 448 M
+(   the following notification.  Initially, the server is responsible for) s
+5 437 M
+(   flow control. \(Here, again, client means the side originating the) s
+5 426 M
+(   session, and server means the other side.\)) s
+5 404 M
+(   The message below is used by the server to inform the client when it) s
+5 393 M
+(   can or cannot perform flow control \(control-S/control-Q processing\).) s
+5 382 M
+(   If `client can do' is TRUE, the client is allowed to do flow control) s
+5 371 M
+(   using control-S and control-Q.  The client MAY ignore this message.) s
+5 349 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 338 M
+(     uint32    recipient channel) s
+5 327 M
+(     string    "xon-xoff") s
+5 316 M
+(     boolean   FALSE) s
+5 305 M
+(     boolean   client can do) s
+5 283 M
+(   No response is sent to this message.) s
+5 261 M
+(6.9 Signals) s
+5 239 M
+(   A signal can be delivered to the remote process/service using the) s
+5 228 M
+(   following message.  Some systems may not implement signals, in which) s
+5 217 M
+(   case they SHOULD ignore this message.) s
+5 195 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 184 M
+(     uint32    recipient channel) s
+5 173 M
+(     string    "signal") s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 12]) s
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+_S
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(     boolean   FALSE) s
+5 679 M
+(     string    signal name without the "SIG" prefix.) s
+5 657 M
+(   Signal names will be encoded as discussed in the "exit-signal") s
+5 646 M
+(   SSH_MSG_CHANNEL_REQUEST.) s
+5 624 M
+(6.10 Returning Exit Status) s
+5 602 M
+(   When the command running at the other end terminates, the following) s
+5 591 M
+(   message can be sent to return the exit status of the command.) s
+5 580 M
+(   Returning the status is RECOMMENDED.  No acknowledgment is sent for) s
+5 569 M
+(   this message.  The channel needs to be closed with) s
+5 558 M
+(   SSH_MSG_CHANNEL_CLOSE after this message.) s
+5 536 M
+(   The client MAY ignore these messages.) s
+5 514 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 503 M
+(     uint32    recipient_channel) s
+5 492 M
+(     string    "exit-status") s
+5 481 M
+(     boolean   FALSE) s
+5 470 M
+(     uint32    exit_status) s
+5 448 M
+(   The remote command may also terminate violently due to a signal.) s
+5 437 M
+(   Such a condition can be indicated by the following message. A zero) s
+5 426 M
+(   exit_status usually means that the command terminated successfully.) s
+5 404 M
+(     byte      SSH_MSG_CHANNEL_REQUEST) s
+5 393 M
+(     uint32    recipient channel) s
+5 382 M
+(     string    "exit-signal") s
+5 371 M
+(     boolean   FALSE) s
+5 360 M
+(     string    signal name without the "SIG" prefix.) s
+5 349 M
+(     boolean   core dumped) s
+5 338 M
+(     string    error message \(ISO-10646 UTF-8\)) s
+5 327 M
+(     string    language tag \(as defined in [RFC3066]\)) s
+5 305 M
+(   The signal name is one of the following \(these are from [POSIX]\)) s
+5 283 M
+(     ABRT) s
+5 272 M
+(     ALRM) s
+5 261 M
+(     FPE) s
+5 250 M
+(     HUP) s
+5 239 M
+(     ILL) s
+5 228 M
+(     INT) s
+5 217 M
+(     KILL) s
+5 206 M
+(     PIPE) s
+5 195 M
+(     QUIT) s
+5 184 M
+(     SEGV) s
+5 173 M
+(     TERM) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 13]) s
+_R
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+%%BeginPageSetup
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+/pagenum 14 def
+/fname () def
+/fdir () def
+/ftail () def
+/user_header_p false def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(     USR1) s
+5 679 M
+(     USR2) s
+5 657 M
+(   Additional signal names MAY be sent in the format "sig-name@xyz",) s
+5 646 M
+(   where `sig-name' and `xyz' may be anything a particular implementor) s
+5 635 M
+(   wants \(except the `@' sign\). However, it is suggested that if a) s
+5 624 M
+(   `configure' script is used, the non-standard signal names it finds be) s
+5 613 M
+(   encoded as "[email protected]", where `SIG' is the signal name) s
+5 602 M
+(   without the "SIG" prefix, and `xyz' be the host type, as determined) s
+5 591 M
+(   by `config.guess'.) s
+5 569 M
+(   The `error message' contains an additional explanation of the error) s
+5 558 M
+(   message. The message may consist of multiple lines. The client) s
+5 547 M
+(   software MAY display this message to the user. If this is done, the) s
+5 536 M
+(   client software should take the precautions discussed in [SSH-ARCH].) s
+5 514 M
+(7. TCP/IP Port Forwarding) s
+5 492 M
+(7.1 Requesting Port Forwarding) s
+5 470 M
+(   A party need not explicitly request forwardings from its own end to) s
+5 459 M
+(   the other direction.  However, if it wishes that connections to a) s
+5 448 M
+(   port on the other side be forwarded to the local side, it must) s
+5 437 M
+(   explicitly request this.) s
+5 404 M
+(     byte      SSH_MSG_GLOBAL_REQUEST) s
+5 393 M
+(     string    "tcpip-forward") s
+5 382 M
+(     boolean   want reply) s
+5 371 M
+(     string    address to bind \(e.g. "0.0.0.0"\)) s
+5 360 M
+(     uint32    port number to bind) s
+5 338 M
+(   `Address to bind' and `port number to bind' specify the IP address) s
+5 327 M
+(   and port to which the socket to be listened is bound.  The address) s
+5 316 M
+(   should be "0.0.0.0" if connections are allowed from anywhere. \(Note) s
+5 305 M
+(   that the client can still filter connections based on information) s
+5 294 M
+(   passed in the open request.\)) s
+5 272 M
+(   Implementations should only allow forwarding privileged ports if the) s
+5 261 M
+(   user has been authenticated as a privileged user.) s
+5 239 M
+(   Client implementations SHOULD reject these messages; they are) s
+5 228 M
+(   normally only sent by the client.) s
+5 195 M
+(   If a client passes 0 as port number to bind and has want reply TRUE) s
+5 184 M
+(   then the server allocates the next available unprivileged port number) s
+5 173 M
+(   and replies with the following message, otherwise there is no) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 14]) s
+_R
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+%%BeginPageSetup
+_S
+75 0 translate
+/pagenum 15 def
+/fname () def
+/fdir () def
+/ftail () def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   response specific data.) s
+5 657 M
+(     byte     SSH_MSG_GLOBAL_REQUEST_SUCCESS) s
+5 646 M
+(     uint32   port that was bound on the server) s
+5 624 M
+(   A port forwarding can be cancelled with the following message.  Note) s
+5 613 M
+(   that channel open requests may be received until a reply to this) s
+5 602 M
+(   message is received.) s
+5 580 M
+(     byte      SSH_MSG_GLOBAL_REQUEST) s
+5 569 M
+(     string    "cancel-tcpip-forward") s
+5 558 M
+(     boolean   want reply) s
+5 547 M
+(     string    address_to_bind \(e.g. "127.0.0.1"\)) s
+5 536 M
+(     uint32    port number to bind) s
+5 514 M
+(   Client implementations SHOULD reject these messages; they are) s
+5 503 M
+(   normally only sent by the client.) s
+5 481 M
+(7.2 TCP/IP Forwarding Channels) s
+5 459 M
+(   When a connection comes to a port for which remote forwarding has) s
+5 448 M
+(   been requested, a channel is opened to forward the port to the other) s
+5 437 M
+(   side.) s
+5 415 M
+(     byte      SSH_MSG_CHANNEL_OPEN) s
+5 404 M
+(     string    "forwarded-tcpip") s
+5 393 M
+(     uint32    sender channel) s
+5 382 M
+(     uint32    initial window size) s
+5 371 M
+(     uint32    maximum packet size) s
+5 360 M
+(     string    address that was connected) s
+5 349 M
+(     uint32    port that was connected) s
+5 338 M
+(     string    originator IP address) s
+5 327 M
+(     uint32    originator port) s
+5 305 M
+(   Implementations MUST reject these messages unless they have) s
+5 294 M
+(   previously requested a remote TCP/IP port forwarding with the given) s
+5 283 M
+(   port number.) s
+5 261 M
+(   When a connection comes to a locally forwarded TCP/IP port, the) s
+5 250 M
+(   following packet is sent to the other side.  Note that these messages) s
+5 239 M
+(   MAY be sent also for ports for which no forwarding has been) s
+5 228 M
+(   explicitly requested.  The receiving side must decide whether to) s
+5 217 M
+(   allow the forwarding.) s
+5 195 M
+(     byte      SSH_MSG_CHANNEL_OPEN) s
+5 184 M
+(     string    "direct-tcpip") s
+5 173 M
+(     uint32    sender channel) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 15]) s
+_R
+S
+PStoPSsaved restore
+userdict/PStoPSsaved save put
+PStoPSmatrix setmatrix
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+userdict/PStoPSmatrix matrix currentmatrix put
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+ 595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
+ closepath}put initclip
+PStoPSxform concat
+%%BeginPageSetup
+_S
+75 0 translate
+/pagenum 16 def
+/fname () def
+/fdir () def
+/ftail () def
+/user_header_p false def
+%%EndPageSetup
+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(     uint32    initial window size) s
+5 679 M
+(     uint32    maximum packet size) s
+5 668 M
+(     string    host to connect) s
+5 657 M
+(     uint32    port to connect) s
+5 646 M
+(     string    originator IP address) s
+5 635 M
+(     uint32    originator port) s
+5 613 M
+(   `Host to connect' and `port to connect' specify the TCP/IP host and) s
+5 602 M
+(   port where the recipient should connect the channel. `Host to) s
+5 591 M
+(   connect' may be either a domain name or a numeric IP address.) s
+5 569 M
+(   `Originator IP address' is the numeric IP address of the machine) s
+5 558 M
+(   where the connection request comes from, and `originator port' is the) s
+5 547 M
+(   port on the originator host from where the connection came from.) s
+5 525 M
+(   Forwarded TCP/IP channels are independent of any sessions, and) s
+5 514 M
+(   closing a session channel does not in any way imply that forwarded) s
+5 503 M
+(   connections should be closed.) s
+5 481 M
+(   Client implementations SHOULD reject direct TCP/IP open requests for) s
+5 470 M
+(   security reasons.) s
+5 448 M
+(8. Encoding of Terminal Modes) s
+5 426 M
+(   Terminal modes \(as passed in a pty request\) are encoded into a byte) s
+5 415 M
+(   stream.  It is intended that the coding be portable across different) s
+5 404 M
+(   environments.) s
+5 382 M
+(   The tty mode description is a stream of bytes.  The stream consists) s
+5 371 M
+(   of opcode-argument pairs.  It is terminated by opcode TTY_OP_END \(0\).) s
+5 360 M
+(   Opcodes 1 to 159 have a single uint32 argument. Opcodes 160 to 255) s
+5 349 M
+(   are not yet defined, and cause parsing to stop \(they should only be) s
+5 338 M
+(   used after any other data\).) s
+5 316 M
+(   The client SHOULD put in the stream any modes it knows about, and the) s
+5 305 M
+(   server MAY ignore any modes it does not know about.  This allows some) s
+5 294 M
+(   degree of machine-independence, at least between systems that use a) s
+5 283 M
+(   POSIX-like tty interface.  The protocol can support other systems as) s
+5 272 M
+(   well, but the client may need to fill reasonable values for a number) s
+5 261 M
+(   of parameters so the server pty gets set to a reasonable mode \(the) s
+5 250 M
+(   server leaves all unspecified mode bits in their default values, and) s
+5 239 M
+(   only some combinations make sense\).) s
+5 217 M
+(   The following opcodes have been defined.  The naming of opcodes) s
+5 206 M
+(   mostly follows the POSIX terminal mode flags.) s
+5 184 M
+(   0   TTY_OP_END     Indicates end of options.) s
+5 173 M
+(   1   VINTR          Interrupt character; 255 if none.  Similarly for the) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 16]) s
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+%%BeginPageSetup
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+/pagenum 17 def
+/fname () def
+/fdir () def
+/ftail () def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(                      other characters. Not all of these characters are) s
+5 679 M
+(                      supported on all systems.) s
+5 668 M
+(   2   VQUIT          The quit character \(sends SIGQUIT signal on POSIX) s
+5 657 M
+(                      systems\).) s
+5 646 M
+(   3   VERASE         Erase the character to left of the cursor.) s
+5 635 M
+(   4   VKILL          Kill the current input line.) s
+5 624 M
+(   5   VEOF           End-of-file character \(sends EOF from the terminal\).) s
+5 613 M
+(   6   VEOL           End-of-line character in addition to carriage return) s
+5 602 M
+(                      and/or linefeed.) s
+5 591 M
+(   7   VEOL2          Additional end-of-line character.) s
+5 580 M
+(   8   VSTART         Continues paused output \(normally control-Q\).) s
+5 569 M
+(   9   VSTOP          Pauses output \(normally control-S\).) s
+5 558 M
+(   10  VSUSP          Suspends the current program.) s
+5 547 M
+(   11  VDSUSP         Another suspend character.) s
+5 536 M
+(   12  VREPRINT       Reprints the current input line.) s
+5 525 M
+(   13  VWERASE        Erases a word left of cursor.) s
+5 514 M
+(   14  VLNEXT         Enter the next character typed literally, even if it) s
+5 503 M
+(                      is a special character) s
+5 492 M
+(   15  VFLUSH         Character to flush output.) s
+5 481 M
+(   16  VSWTCH         Switch to a different shell layer.) s
+5 470 M
+(   17  VSTATUS        Prints system status line \(load, command, pid etc\).) s
+5 459 M
+(   18  VDISCARD       Toggles the flushing of terminal output.) s
+5 448 M
+(   30  IGNPAR         The ignore parity flag.  The parameter SHOULD be 0 if) s
+5 437 M
+(                      this flag is FALSE set, and 1 if it is TRUE.) s
+5 426 M
+(   31  PARMRK         Mark parity and framing errors.) s
+5 415 M
+(   32  INPCK          Enable checking of parity errors.) s
+5 404 M
+(   33  ISTRIP         Strip 8th bit off characters.) s
+5 393 M
+(   34  INLCR          Map NL into CR on input.) s
+5 382 M
+(   35  IGNCR          Ignore CR on input.) s
+5 371 M
+(   36  ICRNL          Map CR to NL on input.) s
+5 360 M
+(   37  IUCLC          Translate uppercase characters to lowercase.) s
+5 349 M
+(   38  IXON           Enable output flow control.) s
+5 338 M
+(   39  IXANY          Any char will restart after stop.) s
+5 327 M
+(   40  IXOFF          Enable input flow control.) s
+5 316 M
+(   41  IMAXBEL        Ring bell on input queue full.) s
+5 305 M
+(   50  ISIG           Enable signals INTR, QUIT, [D]SUSP.) s
+5 294 M
+(   51  ICANON         Canonicalize input lines.) s
+5 283 M
+(   52  XCASE          Enable input and output of uppercase characters by) s
+5 272 M
+(                      preceding their lowercase equivalents with `\\'.) s
+5 261 M
+(   53  ECHO           Enable echoing.) s
+5 250 M
+(   54  ECHOE          Visually erase chars.) s
+5 239 M
+(   55  ECHOK          Kill character discards current line.) s
+5 228 M
+(   56  ECHONL         Echo NL even if ECHO is off.) s
+5 217 M
+(   57  NOFLSH         Don't flush after interrupt.) s
+5 206 M
+(   58  TOSTOP         Stop background jobs from output.) s
+5 195 M
+(   59  IEXTEN         Enable extensions.) s
+5 184 M
+(   60  ECHOCTL        Echo control characters as ^\(Char\).) s
+5 173 M
+(   61  ECHOKE         Visual erase for line kill.) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 17]) s
+_R
+S
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+userdict/PStoPSmatrix matrix currentmatrix put
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+%%BeginPageSetup
+_S
+75 0 translate
+/pagenum 18 def
+/fname () def
+/fdir () def
+/ftail () def
+/user_header_p false def
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   62  PENDIN         Retype pending input.) s
+5 679 M
+(   70  OPOST          Enable output processing.) s
+5 668 M
+(   71  OLCUC          Convert lowercase to uppercase.) s
+5 657 M
+(   72  ONLCR          Map NL to CR-NL.) s
+5 646 M
+(   73  OCRNL          Translate carriage return to newline \(output\).) s
+5 635 M
+(   74  ONOCR          Translate newline to carriage return-newline) s
+5 624 M
+(                      \(output\).) s
+5 613 M
+(   75  ONLRET         Newline performs a carriage return \(output\).) s
+5 602 M
+(   90  CS7            7 bit mode.) s
+5 591 M
+(   91  CS8            8 bit mode.) s
+5 580 M
+(   92  PARENB         Parity enable.) s
+5 569 M
+(   93  PARODD         Odd parity, else even.) s
+5 547 M
+(   128 TTY_OP_ISPEED  Specifies the input baud rate in bits per second.) s
+5 536 M
+(   129 TTY_OP_OSPEED  Specifies the output baud rate in bits per second.) s
+5 503 M
+(9. Summary of Message Numbers) s
+5 481 M
+(     #define SSH_MSG_GLOBAL_REQUEST                  80) s
+5 470 M
+(     #define SSH_MSG_REQUEST_SUCCESS                 81) s
+5 459 M
+(     #define SSH_MSG_REQUEST_FAILURE                 82) s
+5 448 M
+(     #define SSH_MSG_CHANNEL_OPEN                    90) s
+5 437 M
+(     #define SSH_MSG_CHANNEL_OPEN_CONFIRMATION       91) s
+5 426 M
+(     #define SSH_MSG_CHANNEL_OPEN_FAILURE            92) s
+5 415 M
+(     #define SSH_MSG_CHANNEL_WINDOW_ADJUST           93) s
+5 404 M
+(     #define SSH_MSG_CHANNEL_DATA                    94) s
+5 393 M
+(     #define SSH_MSG_CHANNEL_EXTENDED_DATA           95) s
+5 382 M
+(     #define SSH_MSG_CHANNEL_EOF                     96) s
+5 371 M
+(     #define SSH_MSG_CHANNEL_CLOSE                   97) s
+5 360 M
+(     #define SSH_MSG_CHANNEL_REQUEST                 98) s
+5 349 M
+(     #define SSH_MSG_CHANNEL_SUCCESS                 99) s
+5 338 M
+(     #define SSH_MSG_CHANNEL_FAILURE                 100) s
+5 305 M
+(10. Security Considerations) s
+5 283 M
+(   This protocol is assumed to run on top of a secure, authenticated) s
+5 272 M
+(   transport.  User authentication and protection against network-level) s
+5 261 M
+(   attacks are assumed to be provided by the underlying protocols.) s
+5 239 M
+(   It is RECOMMENDED that implementations disable all the potentially) s
+5 228 M
+(   dangerous features \(e.g. agent forwarding, X11 forwarding, and TCP/IP) s
+5 217 M
+(   forwarding\) if the host key has changed.) s
+5 195 M
+(   Full security considerations for this protocol are provided in) s
+5 184 M
+(   Section 8 of [SSH-ARCH]) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 18]) s
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(11. iana cONSiderations) s
+5 668 M
+(   This document is part of a set, the IANA considerations for the SSH) s
+5 657 M
+(   protocol as defined in [SSH-ARCH], [SSH-TRANS], [SSH-USERAUTH],) s
+5 646 M
+(   [SSH-CONNECT] are detailed in [SSH-NUMBERS].) s
+5 624 M
+(12. Intellectual Property) s
+5 602 M
+(   The IETF takes no position regarding the validity or scope of any) s
+5 591 M
+(   intellectual property or other rights that might be claimed to) s
+5 580 M
+(   pertain to the implementation or use of the technology described in) s
+5 569 M
+(   this document or the extent to which any license under such rights) s
+5 558 M
+(   might or might not be available; neither does it represent that it) s
+5 547 M
+(   has made any effort to identify any such rights. Information on the) s
+5 536 M
+(   IETF's procedures with respect to rights in standards-track and) s
+5 525 M
+(   standards-related documentation can be found in BCP-11. Copies of) s
+5 514 M
+(   claims of rights made available for publication and any assurances of) s
+5 503 M
+(   licenses to be made available, or the result of an attempt made to) s
+5 492 M
+(   obtain a general license or permission for the use of such) s
+5 481 M
+(   proprietary rights by implementers or users of this specification can) s
+5 470 M
+(   be obtained from the IETF Secretariat.) s
+5 448 M
+(   The IETF has been notified of intellectual property rights claimed in) s
+5 437 M
+(   regard to some or all of the specification contained in this) s
+5 426 M
+(   document. For more information consult the online list of claimed) s
+5 415 M
+(   rights.) s
+5 393 M
+(Normative References) s
+5 371 M
+(   [SSH-ARCH]) s
+5 360 M
+(              Ylonen, T., "SSH Protocol Architecture", I-D) s
+5 349 M
+(              draft-ietf-architecture-15.txt, Oct 2003.) s
+5 327 M
+(   [SSH-TRANS]) s
+5 316 M
+(              Ylonen, T., "SSH Transport Layer Protocol", I-D) s
+5 305 M
+(              draft-ietf-transport-17.txt, Oct 2003.) s
+5 283 M
+(   [SSH-USERAUTH]) s
+5 272 M
+(              Ylonen, T., "SSH Authentication Protocol", I-D) s
+5 261 M
+(              draft-ietf-userauth-18.txt, Oct 2003.) s
+5 239 M
+(   [SSH-CONNECT]) s
+5 228 M
+(              Ylonen, T., "SSH Connection Protocol", I-D) s
+5 217 M
+(              draft-ietf-connect-18.txt, Oct 2003.) s
+5 195 M
+(   [SSH-NUMBERS]) s
+5 184 M
+(              Lehtinen, S. and D. Moffat, "SSH Protocol Assigned) s
+5 173 M
+(              Numbers", I-D draft-ietf-secsh-assignednumbers-05.txt, Oct) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 19]) s
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(              2003.) s
+5 668 M
+(   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate) s
+5 657 M
+(              Requirement Levels", BCP 14, RFC 2119, March 1997.) s
+5 635 M
+(Informative References) s
+5 613 M
+(   [RFC3066]  Alvestrand, H., "Tags for the Identification of) s
+5 602 M
+(              Languages", BCP 47, RFC 3066, January 2001.) s
+5 580 M
+(   [RFC1884]  Hinden, R. and S. Deering, "IP Version 6 Addressing) s
+5 569 M
+(              Architecture", RFC 1884, December 1995.) s
+5 547 M
+(   [RFC2279]  Yergeau, F., "UTF-8, a transformation format of ISO) s
+5 536 M
+(              10646", RFC 2279, January 1998.) s
+5 514 M
+(   [SCHEIFLER]) s
+5 503 M
+(              Scheifler, R., "X Window System : The Complete Reference) s
+5 492 M
+(              to Xlib, X Protocol, Icccm, Xlfd, 3rd edition.", Digital) s
+5 481 M
+(              Press ISBN 1555580882, Feburary 1992.) s
+5 459 M
+(   [POSIX]    ISO/IEC, 9945-1., "Information technology -- Portable) s
+5 448 M
+(              Operating System Interface  \(POSIX\)-Part 1: System) s
+5 437 M
+(              Application Program Interface \(API\) C Language", ANSI/IEE) s
+5 426 M
+(              Std 1003.1, July 1996.) s
+5 393 M
+(Authors' Addresses) s
+5 371 M
+(   Tatu Ylonen) s
+5 360 M
+(   SSH Communications Security Corp) s
+5 349 M
+(   Fredrikinkatu 42) s
+5 338 M
+(   HELSINKI  FIN-00100) s
+5 327 M
+(   Finland) s
+5 305 M
+(   EMail: [email protected]) s
+5 272 M
+(   Darren J. Moffat \(editor\)) s
+5 261 M
+(   Sun Microsystems, Inc) s
+5 250 M
+(   17 Network Circle) s
+5 239 M
+(   Menlo Park  CA 94025) s
+5 228 M
+(   USA) s
+5 206 M
+(   EMail: [email protected]) s
+5 129 M
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+5 723 M
+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(Intellectual Property Statement) s
+5 668 M
+(   The IETF takes no position regarding the validity or scope of any) s
+5 657 M
+(   intellectual property or other rights that might be claimed to) s
+5 646 M
+(   pertain to the implementation or use of the technology described in) s
+5 635 M
+(   this document or the extent to which any license under such rights) s
+5 624 M
+(   might or might not be available; neither does it represent that it) s
+5 613 M
+(   has made any effort to identify any such rights. Information on the) s
+5 602 M
+(   IETF's procedures with respect to rights in standards-track and) s
+5 591 M
+(   standards-related documentation can be found in BCP-11. Copies of) s
+5 580 M
+(   claims of rights made available for publication and any assurances of) s
+5 569 M
+(   licenses to be made available, or the result of an attempt made to) s
+5 558 M
+(   obtain a general license or permission for the use of such) s
+5 547 M
+(   proprietary rights by implementors or users of this specification can) s
+5 536 M
+(   be obtained from the IETF Secretariat.) s
+5 514 M
+(   The IETF invites any interested party to bring to its attention any) s
+5 503 M
+(   copyrights, patents or patent applications, or other proprietary) s
+5 492 M
+(   rights which may cover technology that may be required to practice) s
+5 481 M
+(   this standard. Please address the information to the IETF Executive) s
+5 470 M
+(   Director.) s
+5 448 M
+(   The IETF has been notified of intellectual property rights claimed in) s
+5 437 M
+(   regard to some or all of the specification contained in this) s
+5 426 M
+(   document. For more information consult the online list of claimed) s
+5 415 M
+(   rights.) s
+5 382 M
+(Full Copyright Statement) s
+5 360 M
+(   Copyright \(C\) The Internet Society \(2003\). All Rights Reserved.) s
+5 338 M
+(   This document and translations of it may be copied and furnished to) s
+5 327 M
+(   others, and derivative works that comment on or otherwise explain it) s
+5 316 M
+(   or assist in its implementation may be prepared, copied, published) s
+5 305 M
+(   and distributed, in whole or in part, without restriction of any) s
+5 294 M
+(   kind, provided that the above copyright notice and this paragraph are) s
+5 283 M
+(   included on all such copies and derivative works. However, this) s
+5 272 M
+(   document itself may not be modified in any way, such as by removing) s
+5 261 M
+(   the copyright notice or references to the Internet Society or other) s
+5 250 M
+(   Internet organizations, except as needed for the purpose of) s
+5 239 M
+(   developing Internet standards in which case the procedures for) s
+5 228 M
+(   copyrights defined in the Internet Standards process must be) s
+5 217 M
+(   followed, or as required to translate it into languages other than) s
+5 206 M
+(   English.) s
+5 184 M
+(   The limited permissions granted above are perpetual and will not be) s
+5 173 M
+(   revoked by the Internet Society or its successors or assignees.) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 21]) s
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+(Internet-Draft          SSH Connection Protocol                 Oct 2003) s
+5 690 M
+(   This document and the information contained herein is provided on an) s
+5 679 M
+(   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING) s
+5 668 M
+(   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING) s
+5 657 M
+(   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION) s
+5 646 M
+(   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF) s
+5 635 M
+(   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.) s
+5 602 M
+(Acknowledgment) s
+5 580 M
+(   Funding for the RFC Editor function is currently provided by the) s
+5 569 M
+(   Internet Society.) s
+5 129 M
+(Ylonen & Moffat, Editor    Expires March 31, 2004              [Page 22]) s
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+%%EOF