These functions are called indirect because they connect to an intermediate host before actually connecting to the NNTP server. All of these functions and related variables are also said to belong to the “via” family of connection: they’re all prefixed with “via” to make things cleaner. The behavior of these functions is also affected by commonly understood variables (see Common Variables).
nntp-open-via-rlogin-and-netcat ¶Does an ‘rlogin’ on a remote system, and then uses netcat to connect
to the real NNTP server from there. This is useful for instance if
you need to connect to a firewall machine first.
nntp-open-via-rlogin-and-netcat-specific variables:
nntp-via-rlogin-command ¶Command used to log in on the intermediate host. The default is ‘rsh’, but ‘ssh’ is a popular alternative.
nntp-via-rlogin-command-switches ¶List of strings to be used as the switches to
nntp-via-rlogin-command. The default is nil. If you use
‘ssh’ for nntp-via-rlogin-command, you may set this to
‘("-C")’ in order to compress all data connections.
nntp-open-via-rlogin-and-telnet ¶Does essentially the same, but uses telnet instead of ‘netcat’
to connect to the real NNTP server from the intermediate host.
telnet is a bit less robust because of things like
line-end-conversion, but sometimes netcat is simply not available.
nntp-open-via-rlogin-and-telnet-specific variables:
nntp-telnet-command ¶Command used to connect to the real NNTP server from the intermediate host. The default is ‘telnet’.
nntp-telnet-switches ¶List of strings to be used as the switches to the
nntp-telnet-command command. The default is ("-8").
nntp-via-rlogin-command ¶Command used to log in on the intermediate host. The default is ‘rsh’, but ‘ssh’ is a popular alternative.
nntp-via-rlogin-command-switches ¶List of strings to be used as the switches to
nntp-via-rlogin-command. If you use ‘ssh’, you may need to set
this to ‘("-t" "-e" "none")’ or ‘("-C" "-t" "-e" "none")’ if
the telnet command requires a pseudo-tty allocation on an intermediate
host. The default is nil.
Note that you may want to change the value for nntp-end-of-line
to ‘\n’ (see Common Variables).
nntp-open-via-telnet-and-telnet ¶Does essentially the same, but uses ‘telnet’ instead of ‘rlogin’ to connect to the intermediate host.
nntp-open-via-telnet-and-telnet-specific variables:
nntp-via-telnet-command ¶Command used to telnet the intermediate host. The default is
‘telnet’.
nntp-via-telnet-switches ¶List of strings to be used as the switches to the
nntp-via-telnet-command command. The default is ‘("-8")’.
nntp-via-user-password ¶Password to use when logging in on the intermediate host.
nntp-via-envuser ¶If non-nil, the intermediate telnet session (client and
server both) will support the ENVIRON option and not prompt for
login name. This works for Solaris telnet, for instance.
nntp-via-shell-prompt ¶Regexp matching the shell prompt on the intermediate host. The default is ‘bash\\|\$ *\r?$\\|> *\r?’.
Note that you may want to change the value for nntp-end-of-line
to ‘\n’ (see Common Variables).
Here are some additional variables that are understood by all the above functions: