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Merge GSSAPI/DNS docs addition from 'pre-0.77'.

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Simon Tatham 2022-02-22 18:45:51 +00:00
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@ -2057,6 +2057,16 @@ is a protocol extension (SOCKS 4A) which does support it, but not
all SOCKS 4 servers provide this extension. If you enable proxy DNS
and your SOCKS 4 server cannot deal with it, this might be why.
If you want to avoid PuTTY making \e{any} DNS query related to your
destination host name (for example, because your local DNS resolver is
very slow to return a negative response in that situation), then as
well as setting this control to \q{Yes}, you may also need to turn off
GSSAPI authentication and GSSAPI key exchange in SSH (see
\k{config-ssh-auth-gssapi} and \k{config-ssh-gssapi-kex}
respectively). This is because GSSAPI setup also involves a DNS query
for the destination host name, and that query is performed by the
separate GSSAPI library, so PuTTY can't override or reconfigure it.
\S{config-proxy-auth} \I{proxy username}Username and \I{proxy password}password
If your proxy requires \I{proxy authentication}authentication, you can