[lug] telnet problems

[George Sexton]

You might try running tcpdchk and seeing what it reports.
  -----Original Message-----
  From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]On
Behalf Of Andrew Reberry
  Sent: Monday, May 22, 2000 2:54 PM
  To: lug at lug.boulder.co.us
  Subject: [lug] telnet problems


  Hello all.  I've got a strange problem I cant even start to figure out...

  After installing a new distro (RedHat 6.2) I have found that I am unable
to telnet into it.  I noticed that 'inetd' was not installed so I then
installed it. ('rpm -i inetd-0.16-4.i386.rpm')  However, after installing
'inetd' I am still having the same problem.  When I try to telnet into the
machine I get the error:

  'Connection closed by foreign host'

  This error comes up when I try to telnet in from the local network
(192.168.2.*) or from localhost itself (127.0.0.1).  So I decided to check
/etc/hosts.allow and hosts.deny.  I specify for all machines on the
192.168.2.* network and 127.0.0.1 to have permission to access the RedHat
machine, and I made sure no computers are being denied access to the
machine.

  I have checked hosts.allow and hosts.deny.  I have installed inetd.  I
have made sure that the following line exists in /etc/inetd.conf and is not
commented out:

  'telnet  stream  tcp     nowait  root    /usr/sbin/tcpd  in.telnetd'

  I have even changed the string to specify the exact path of in.telnetd,
which is in my /usr/sbin/ folder.  The line now reads:

  'telnet  stream  tcp     nowait  root    /usr/sbin/tcpd
/usr/sbin/in.telnetd'

  I have made sure I am not root when I telnet to the localhost.  When I try
to telnet over the network into the machine I get the same problems.  I know
it is not the network because I have samba working correctly, and I can ping
all computers without any problems.  (plus I can't even telnet from
localhost)

  When I do a 'ps aux | grep inetd' I show inetd running on root just fine.
I have tried 'killall -HUP inetd' and that does me no good.  I have even
checked the log files after trying to telnet and this is providing me with
no output.

  Any ideas would be appreciated.

  Andrew Reberry
  reberrya at colorado.edu
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