[tech] Sending mail hangs on mermaid and mussel

[Duncan Sargeant]

Nick Bannon wrote on Sat January 29, at 17:20 +0800:
> Sending mail hangs, with DNS timeouts ;
> echo "test" | /usr/sbin/sendmail nick at ucc.gu.uwa.edu.au
> 
> It eventually works, after what seems to be a lot of DNS
> timeouts... Manually looking up the names seems fine. Check out
> mermaid:/tmp/sendmail.log for an strace (stracing it needs to be done
> as root as it's suid).
> 
> Any ideas?

socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
connect(4, {sin_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("130.95.13.9")}}, 16) = 0
send(4, "\221\214\1\0\0\1\0\0\0\0\0\0\00218\00242\00226\003172\7"...,
43, 0) = 43

Its trying to reverse lookup 172.26.24..18 for some reason.

I have no idea why its doing this.

,dunc
-- 
Duncan Sargeant
"First, never insult the giant purple iguanas in the corner, they are assholes
with no sense of humor. Second, don't touch the red button, if you do we are
all as good as dead. Welcome aboard, I am sure you will enjoy your stay." - G:ML