fc6: telnetd refuses connections if nameserver is down

[Mikkel L. Ellertson]

Dario Lesca wrote:
> Hi, in FC6, the telnetd service refuse the connection if the nameserver
> is down. (see this bug):
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=223448
> 
> But in this tread:
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=221583
> 
> people say witch this problem is not a bug ....
> 
> In previous fc version, if the nameserver is down, the connection is
> however accepted .
> 
> Someone can give me more information to this issue?.
> It will be resolved (or not) in future?
> 
> Many thanks.
> 
I don't have telnetd installed, so I can not check it, but take a
look at /etc/xinetd.d/telnet and see if it has something like:

log_on_success  += HOST DURATION
log_on_failure  += HOST

I suspect you have something like the first line, and with DNS down,
it refuses connections, because it can not log the machine. Try
commenting out the line(s). You will have to restart xinetd.

Mikkel
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