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From: Hal Snyder <DrXyzzy@mediaone.net>
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Subject: ssh foreign server problem
Date: 15 Mar 1999 19:59:15 -0600
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I'm having trouble using gnus's nifty ssh foreign host feature. Is it
me, or is there a bug?

I'm running ssh 1.2.26, GNU Emacs 20.3.1, pgnus-0.80, FreeBSD-3.0.

Ssh-agent is running and I have ssh-add'ed my id.

I have a shell account with an ISP, say "isp.com". This is not my main ISP
but they have newsgroups not available on the main news server I use. The
news server will not respond to hosts outside of isp.com.

If I do
  ssh -L 8119:news.isp.com:119 shell.isp.com
then I am able to access the server by configuring a server as follows:

  (nntp "foozle"
      (nntp-address "localhost")
      (nntp-port-number 8119)
      (nntp-record-commands t))
But this is messy.

OTOH, suppose I create another server, per the docs, to use pgnus's built-in
ssh proxying:
  (nntp "barzle"
      (nntp-address "shell.isp.com")
      (nntp-rlogin-program "ssh")
      (nntp-open-connection-function nntp-open-rlogin)
      (nntp-end-of-line "\n")
      (nntp-rlogin-parameters
       ("telnet" "news.isp.com" "nntp")))
When I try to open this server, there's a little traffic out to the
Internet, then gnus just sits there forever saying "Opening nntp
server on barzle...".

Manual telnet from shell.isp.com to news.isp.com, port 119 gets a
positive response from the news server.

I tried setting nntp-record-commands to "t", but nothing goes into the
*nntp-log* buffer.

Any ideas on what's wrong or how to debug this situation?