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 postfix/smtpd[25331]: disconnect from unknown[unknown]
How do I get these? Someone is trying to connect from a unknown address
but is losing the connection immediately and gets disconnected.
Why does it say that its a connection from "unknown"? Shouldn't I be
able to see who's connecting to me?
Is it possible that a spamer is trying to take advantage of my server or
something somehow?
Thanks