Lots of connections from Unknown

2010-03-16 Thread Patric Falinder
I just noticed that I had a lot of these messages in my logs and was just wondering what they were: Mar 16 16:34:02 sexan postfix/smtpd[25331]: connect from unknown[unknown] Mar 16 16:34:02 sexan postfix/smtpd[25331]: lost connection after CONNECT from unknown[unknown] Mar 16 16:34:02 sexan po

Re: Lots of connections from Unknown

2010-03-16 Thread Noel Jones
On 3/16/2010 10:41 AM, Patric Falinder wrote: I just noticed that I had a lot of these messages in my logs and was just wondering what they were: Mar 16 16:34:02 sexan postfix/smtpd[25331]: connect from unknown[unknown] Mar 16 16:34:02 sexan postfix/smtpd[25331]: lost connection after CONNECT fr

Re: Lots of connections from Unknown

2010-03-16 Thread Manuel Mely
On Tue, Mar 16, 2010 at 11:41 AM, Patric Falinder wrote: > I just noticed that I had a lot of these messages in my logs and was just > wondering what they were: > > Mar 16 16:34:02 sexan postfix/smtpd[25331]: connect from unknown[unknown] > Mar 16 16:34:02 sexan postfix/smtpd[25331]: lost connecti

Re: Lots of connections from Unknown

2010-03-16 Thread Wietse Venema
Manuel Mely: > Do you have a monitoring tool in your network? Maybe it's a Nagios testing > your smtp server. > That also happens to me in my loadbalancer, keepalived test smtp port > with a telnet and then disconnects and i have a lot of this message in > my logs too. > > Is there a way to avoid