EMERGENCY -- Unable to connect correctly..

Will McDonald wmcdonald at gmail.com
Tue Apr 11 06:02:54 CDT 2006


On 10/04/06, Florent Gilain <florent.gilain at direct-energie.com> wrote:
> Since this morning, 2 of my Dell PE1850 seem to work very strangly :
>
> I'm able to ssh to it, but any ping / telnet on port 53 or 25 will fail.

Is iptables running?

# lsmod | grep ipt
# service iptables status
# iptables -L

Is Sendmail/some other MTA running and listening on port 25? Can you
connect locally when SSHed onto the system?

# ps auxw | grep mail
# netstat -ln | grep :25
# telnet localhost 25

Is named running and listening on port 53?

# ps auxw | grep name
# netstat -ln | grep 53

Has anything been updated on the system recently?

# rpm -qa --last | tac

Will.



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