Le 16/11/2016 à 12:38, li...@lazygranch.com a écrit :
On Wed, 16 Nov 2016 02:26:13 -0800
"li...@lazygranch.com" <li...@lazygranch.com> wrote:
On Wed, 16 Nov 2016 11:52:14 +0200
Patrick Chemla <patrick.che...@perfaction.net> wrote:
Le 16/11/2016 à 11:45, li...@lazygranch.com a écrit :
Is this a hack or a server problem. IP was listed in abusedb
about a year ago.
<pattern repeats>
Nov 16 09:14:36 theranch postfix/smtpd[6094]: connect from
unknown[87.236.215.11] Nov 16 09:14:36 theranch
postfix/smtpd[6094]: lost connection after AUTH from
unknown[87.236.215.11] Nov 16 09:14:36 theranch
<snip>
# bzgrep -e 87.236.215.11 maillog | wc -l
212
Three lines per hack. Make that 70 attempts. The stats line messes up
the line count.
First entry:Nov 16 09:13:45
Last entry: Nov 16 09:18:00
255 seconds
16.5 attempts a minute
16 Attempts per second, yes this is a hack attempt.
Protect yourself immediatly, even if he will surely need some (hundred
of) thousands attempts to find a password.
Another problem is that he is taking your bandwith.
Patrick
