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artist99

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What can i do aginst such login attempts from the the internet:

[14/Nov/2013 02:24:30] Failed SMTP login from 66-242-168-21.static.bvn.net with SASL method LOGIN.
[14/Nov/2013 02:44:54] SMTP: User replay<_at_>goehlerorg.local doesn't exist. Attempt from IP address 66.242.168.21.

Regards,

Andreas
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camisy

Messages: 114
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Disconnect your server from the internet Wink

To be honest I think there is nothing you can do an least not checking log files. These are attempts from hackers. If you want this to be blocked earlier you might take a look at some firewall, eg Kerio Control or using IPtables.
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freakinvibe

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In Kerio Web Admin, go to

Advanced Options > Security Policy

Under "Login Guessing Protection", tick the box "Block IP addresses suspicious of password guessing attacks".

That should do the trick. In the security log, you should see entries like this, if some hacker tries to guess your passwords:

[18/Nov/2013 20:30:14] AntiHammering - IP address 211.235.228.43 will be blocked for 5 minutes, too many failed logins from this IP address.

Dexion AG - The Blackberry Specialists in Switzerland
https://dexionag.ch
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camisy

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however you will still see these attempts in your log.
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