Re: ICMP Weirdness (old bug resurfaced?)

Keith Owens (kaos@ocs.com.au)
Sat, 01 May 1999 10:14:29 +1000

On Sat, 1 May 1999 00:17:38 +0100 (GMT),
Alex Buell <alex.buell@tahallah.demon.co.uk> wrote:
>I keep getting these messages all the time in my logs whenever I do
>operations like ftp/telnet/browsing/email.
>
>Apr 30 23:36:37 tahallah icmplogd[53]: icmp_dest_unreach (code
>icmp_port_unreach), from localhost

You have some service defined as running on localhost but it is not
present. Since you get this for ftp/telnet/browsing/email, the service
is probably DNS. Check /etc/resolv.conf, do you have "nameserver
localhost" or "nameserver 127.0.0.1"? If so, are you really running
DNS on your box? If the missing service is not DNS, as root run
"tcpdump -nlpilo" to see which service you are trying to access.
Either way, you need to start the service or change the config for the
missing service to remove localhost.

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