-\versionid $Id: config.but,v 1.37 2002/09/08 13:28:38 simon Exp $
+\versionid $Id: config.but,v 1.39 2002/09/21 14:03:05 simon Exp $
\C{config} Configuring PuTTY
If your proxy requires authentication, you can enter a username and
a password in the \q{Username} and \q{Password} boxes.
-Currently only the \q{Username} box has any effect, and that only for
-SOCKS 4 proxies. ( [FIXME] No forms of authentication are supported
-for other types of proxy.)
+Authentication is not supported for all forms of proxy. Currently:
+
+\b Username and password authentication is supported for HTTP proxies.
+
+\b SOCKS 4 can use the \q{Username} field, but does not support
+passwords.
+
+\b PuTTY does not support authentication in SOCKS 5 at all.
+
+\b Authentication is meaningless in Telnet proxies.
\S{config-proxy-command} Specifying the Telnet proxy command
intended to reflect a reasonable preference in terms of security and
speed.
+In SSH-2, the encryption algorithm is negotiated independently for
+each direction of the connection, although PuTTY does not support
+separate configuration of the preference orders. As a result you may
+get two warnings similar to the one above, possibly with different
+encryptions.
+
Single-DES is not supported natively in the SSH 2 draft protocol
standards. One or two server implementations do support it, by a
non-standard name. PuTTY can use single-DES to interoperate with