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5 701 M
(Network Working Group T. Ylonen) s
5 690 M
(Internet-Draft SSH Communications Security Corp) s
5 679 M
(Expires: March 31, 2004 D. Moffat, Editor, Ed.) s
5 668 M
( Sun Microsystems, Inc) s
5 657 M
( Oct 2003) s
5 624 M
( SSH Connection Protocol) s
5 613 M
( draft-ietf-secsh-connect-18.txt) s
5 591 M
(Status of this Memo) s
5 569 M
( This document is an Internet-Draft and is in full conformance with) s
5 558 M
( 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
5 327 M
( Copyright \(C\) The Internet Society \(2003\). All Rights Reserved.) s
5 305 M
(Abstract) s
5 283 M
( 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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5 723 M
(Internet-Draft SSH Connection Protocol Oct 2003) s
5 690 M
(Table of Contents) s
5 668 M
( 1. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 3) s
5 657 M
( 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3) s
5 646 M
( 3. Conventions Used in This Document . . . . . . . . . . . . . 3) s
5 635 M
( 4. Global Requests . . . . . . . . . . . . . . . . . . . . . . 3) s
5 624 M
( 5. Channel Mechanism . . . . . . . . . . . . . . . . . . . . . 4) s
5 613 M
( 5.1 Opening a Channel . . . . . . . . . . . . . . . . . . . . . 4) s
5 602 M
( 5.2 Data Transfer . . . . . . . . . . . . . . . . . . . . . . . 5) s
5 591 M
( 5.3 Closing a Channel . . . . . . . . . . . . . . . . . . . . . 6) s
5 580 M
( 5.4 Channel-Specific Requests . . . . . . . . . . . . . . . . . 7) s
5 569 M
( 6. Interactive Sessions . . . . . . . . . . . . . . . . . . . . 8) s
5 558 M
( 6.1 Opening a Session . . . . . . . . . . . . . . . . . . . . . 8) s
5 547 M
( 6.2 Requesting a Pseudo-Terminal . . . . . . . . . . . . . . . . 8) s
5 536 M
( 6.3 X11 Forwarding . . . . . . . . . . . . . . . . . . . . . . . 9) s
5 525 M
( 6.3.1 Requesting X11 Forwarding . . . . . . . . . . . . . . . . . 9) s
5 514 M
( 6.3.2 X11 Channels . . . . . . . . . . . . . . . . . . . . . . . . 10) s
5 503 M
( 6.4 Environment Variable Passing . . . . . . . . . . . . . . . . 10) s
5 492 M
( 6.5 Starting a Shell or a Command . . . . . . . . . . . . . . . 10) s
5 481 M
( 6.6 Session Data Transfer . . . . . . . . . . . . . . . . . . . 11) s
5 470 M
( 6.7 Window Dimension Change Message . . . . . . . . . . . . . . 12) s
5 459 M
( 6.8 Local Flow Control . . . . . . . . . . . . . . . . . . . . . 12) s
5 448 M
( 6.9 Signals . . . . . . . . . . . . . . . . . . . . . . . . . . 12) s
5 437 M
( 6.10 Returning Exit Status . . . . . . . . . . . . . . . . . . . 13) s
5 426 M
( 7. TCP/IP Port Forwarding . . . . . . . . . . . . . . . . . . . 14) s
5 415 M
( 7.1 Requesting Port Forwarding . . . . . . . . . . . . . . . . . 14) s
5 404 M
( 7.2 TCP/IP Forwarding Channels . . . . . . . . . . . . . . . . . 15) s
5 393 M
( 8. Encoding of Terminal Modes . . . . . . . . . . . . . . . . . 16) s
5 382 M
( 9. Summary of Message Numbers . . . . . . . . . . . . . . . . . 18) s
5 371 M
( 10. Security Considerations . . . . . . . . . . . . . . . . . . 18) s
5 360 M
( 11. iana cONSiderations . . . . . . . . . . . . . . . . . . . . 19) s
5 349 M
( 12. Intellectual Property . . . . . . . . . . . . . . . . . . . 19) s
5 338 M
( Normative References . . . . . . . . . . . . . . . . . . . . 19) s
5 327 M
( Informative References . . . . . . . . . . . . . . . . . . . 20) s
5 316 M
( Authors' Addresses . . . . . . . . . . . . . . . . . . . . . 20) s
5 305 M
( Intellectual Property and Copyright Statements . . . . . . . 21) s
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(Ylonen & Moffat, Editor Expires March 31, 2004 [Page 2]) s
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5 723 M
(Internet-Draft SSH Connection Protocol Oct 2003) s
5 690 M
(1. Contributors) s
5 668 M
( The major original contributors of this document were: Tatu Ylonen,) s
5 657 M
( Tero Kivinen, Timo J. Rinne, Sami Lehtinen \(all of SSH Communications) s
5 646 M
( Security Corp\), and Markku-Juhani O. Saarinen \(University of) s
5 635 M
( Jyvaskyla\)) s
5 613 M
( The document editor is: [email protected]. Comments on this) s
5 602 M
( internet draft should be sent to the IETF SECSH working group,) s
5 591 M
( details at: http://ietf.org/html.charters/secsh-charter.html) s
5 569 M
(2. Introduction) s
5 547 M
( The SSH Connection Protocol has been designed to run on top of the) s
5 536 M
( SSH transport layer and user authentication protocols. It provides) s
5 525 M
( interactive login sessions, remote execution of commands, forwarded) s
5 514 M
( 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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5 723 M
(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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closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 5 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
( 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
(Ylonen & Moffat, Editor Expires March 31, 2004 [Page 5]) s
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PStoPSmatrix setmatrix
595.000000 421.271378 translate
90 rotate
0.706651 dup scale
userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 6 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
( 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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595.000000 0.271378 translate
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userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 7 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
( 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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PStoPSmatrix setmatrix
595.000000 421.271378 translate
90 rotate
0.706651 dup scale
userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 8 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
( 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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PStoPSmatrix setmatrix
595.000000 0.271378 translate
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0.706651 dup scale
userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 9 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
( 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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595.000000 421.271378 translate
90 rotate
0.706651 dup scale
userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 10 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
(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
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595.000000 0.271378 translate
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userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 11 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
( 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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PStoPSmatrix setmatrix
595.000000 421.271378 translate
90 rotate
0.706651 dup scale
userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 12 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
(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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595.000000 0.271378 translate
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userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 13 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
( 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
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userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
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/pagenum 14 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
( 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
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595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
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/pagenum 15 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
( 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
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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
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595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
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75 0 translate
/pagenum 17 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
( 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
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userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 18 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
( 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
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595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
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/pagenum 19 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
(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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595.000000 421.271378 translate
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userdict/PStoPSmatrix matrix currentmatrix put
userdict/PStoPSclip{0 0 moveto
595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
PStoPSxform concat
%%BeginPageSetup
_S
75 0 translate
/pagenum 20 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
( 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
(Ylonen & Moffat, Editor Expires March 31, 2004 [Page 20]) s
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595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
closepath}put initclip
/showpage{}def/copypage{}def/erasepage{}def
PStoPSxform concat
%%BeginPageSetup
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/pagenum 21 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
(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
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