Robin Atwood wrote:
On Saturday 24 October 2009, Alan McKinnon wrote:
On Friday 23 October 2009 21:49:42 Robin Atwood wrote:
My syslog is showing zillions of messages:
Oct 24 02:25:58 opal xinetd[8054]: START: pop-3 pid=16534
from=61.134.64.199 Oct 24 02:25:59 opal xinetd[16534]: warning:
/etc/hosts.allow, line 7: can't verify hostname:
gethostbyname(199.64.134.61.broad.gs.dynamic.163data.com.cn) failed
Oct 24 02:26:09 opal xinetd[8054]: EXIT: pop-3 status=0 pid=16534
duration=11(sec)
I run denyhosts but don't trap pop3 messages so I manually added the IP
address to /etc/hosts.deny and..., it made absolutely no difference. I
run qpopper which is compiled with xinetd support and xinetd uses tcpd,
so I assumed the address would be blocked. Apparently not so. Any ideas?
You have allow ALL ALL early in hosts.allow, or
you have allow pop3 all earlier in hosts.allow
The second! I had forgotten about that. The trouble I set it up that way so I
could pick up email from arbitrary locations while travelling. It seems the
price of that is allowing idiots to spam your logs.
Thanks for the pointer.
-Robin
You might think about moving to pop3-ssl or imap-ssl and dropping the
unencrypted protocols. Usually keeps people from banging on the servers
and much safer if you use the occasional unsecured wireless network.
kashani
