Red Hat Bugzilla – Bug 23747
telnet server does not work
Last modified: 2007-04-18 12:30:38 EDT
Please note that I am unable to telnet to a newly installed beta 2 node.
Joseph Kotran Lead Systems Administrator
Lockheed Martin E-mail: firstname.lastname@example.org
Advanced Technology Laboratories Phone: 856.338.4327
1 Federal St A&E 312 Fax: 856.338.4121
Camden NJ USA 08102 Web: http://www.atl.lmco.com
Have you enabled telnet either via chkconfig or setting 'disable=no' in
/etc/xinetd.d/telnet after installing the package and then restarted xinetd?
Security bites! :-]
(and I'm all for heavy biting)
I did enable telnet in /etc/xinetd.d/telnet and I sent a HUP signal to the
xinetd. I recently restarted xinetd and I can now telnet to the computer. Does
xinetd require a restart when you change its configuration? I think that this
would cause problems on a server that is accessed by many users. I think that a
key service such as inetd should always be running.
xinetd should run by default, but a SIGHUP does not restart xinetd. This is a
behavior change between inetd and xinetd -- from xinetd(8)
SIGHUP causes an internal state dump (the default
dump file is /tmp/xinetd.dump; to change
the filename, edit config.h and recompile).
Therefore, you must do a restart of the service to get the configuration files
reread. This is identical behavior to 7.0 except for the fact that telnet is
not enabled by default due to security considerations.
This defect is considered MUST-FIX for Florence Gold release
Er.. '/sbin/service xinetd reload' (which sends a SIGUSR2) works just fine, doesn't it? Seems like NOTABUG to me..
That was my thinking but I was going to let Jeff or Joseph make the call :)
We have consensus.