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-rw-r--r--lib/ssh/doc/src/ssh.xml38
1 files changed, 26 insertions, 12 deletions
diff --git a/lib/ssh/doc/src/ssh.xml b/lib/ssh/doc/src/ssh.xml
index 06bc39f8fe..43db63e7e6 100644
--- a/lib/ssh/doc/src/ssh.xml
+++ b/lib/ssh/doc/src/ssh.xml
@@ -464,27 +464,41 @@ kex is implicit but public_key is set explicitly.</p>
<tag><c><![CDATA[{dh_gex_groups, [{Size=integer(),G=integer(),P=integer()}] | {file,filename()} {ssh_moduli_file,filename()} }]]></c></tag>
<item>
- <p>Sets the groups that the server may choose among when diffie-hellman-group-exchange is negotiated.
- See RFC 4419 for details.
+ <p>Defines the groups the server may choose among when diffie-hellman-group-exchange is negotiated.
+ See RFC 4419 for details. The three variants of this option are:
</p>
- <p>The default list is fetched from the public_key application.
- </p>
- <p>If the parameter is <c>{file,filename()}</c>, the file must exist and have one or more three-tuples terminated by a dot. The interpretation is as if the tuples had been given directly in the option. The file is read when the daemon starts.
- </p>
- <p>If the parameter is <c>{ssh_moduli_file,filename()}</c>, the file must exist and be in ssh-keygen moduli file format. The file is read when the daemon starts.
+ <taglist>
+ <tag><c>{Size=integer(),G=integer(),P=integer()}</c></tag>
+ <item>The groups are given explicitly in this list. There may be several elements with the same <c>Size</c>.
+ In such a case, the server will choose one randomly in the negotiated Size.
+ </item>
+ <tag><c>{file,filename()}</c></tag>
+ <item>The file must have one or more three-tuples <c>{Size=integer(),G=integer(),P=integer()}</c>
+ terminated by a dot. The file is read when the daemon starts.
+ </item>
+ <tag><c>{ssh_moduli_file,filename()}</c></tag>
+ <item>The file must be in
+ <seealso marker="public_key:public_key#public_key/4">ssh-keygen moduli file format</seealso>.
+ The file is read when the daemon starts.
+ </item>
+ </taglist>
+ <p>The default list is fetched from the
+ <seealso marker="public_key:public_key#public_key/4">public_key</seealso> application.
</p>
</item>
<tag><c><![CDATA[{dh_gex_limits,{Min=integer(),Max=integer()}}]]></c></tag>
<item>
- <p>Limits the key Sizes what a client can ask for in diffie-hellman-group-exchange.
- The effective value will be
- <c>MaxUsed = min(MaxClient,Max), MinUsed = max(MinClient,Min)</c>.
- The default value is <c>{0,infinity}</c>.
+ <p>Limits what a client can ask for in diffie-hellman-group-exchange.
+ The limits will be
+ <c>{MaxUsed = min(MaxClient,Max), MinUsed = max(MinClient,Min)}</c> where <c>MaxClient</c> and
+ <c>MinClient</c> are the values proposed by a connecting client.
+ </p>
+ <p>The default value is <c>{0,infinity}</c>.
</p>
<p>If <c>MaxUsed &lt; MinUsed</c> in a key exchange, it will fail with a disconnect.
</p>
- <p>See RFC 4419 for the function of the Max an Min values.</p>
+ <p>See RFC 4419 for the function of the Max and Min values.</p>
</item>
<tag><c><![CDATA[{pwdfun, fun(User::string(), password::string()) -> boolean()}]]></c></tag>