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  #11  
Old 1st June 2010, 05:18
TheEther TheEther is offline
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Quote:
Originally Posted by tal56 View Post
Hi guys,

I'm getting a lot of smtp brute force attacks lately and on my /var/log/secure logs they don't even list the IP of the person trying the attacks. They look like this :

What's the best way to block these attacks? Thanks
Blocking SMTP authentication brute force attacks using Fail2Ban
http://theether.net/kb/100141

Cheers,

Jamie.
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  #12  
Old 17th November 2010, 18:30
hairydog2 hairydog2 is offline
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Quote:
Originally Posted by till View Post
If you know the IP of the attacker, you might use this command:

/sbin/route add -host 123.123.123.123 reject
I tried to do this, but got

SIOCADDRT: No such device

Any suggestions?
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  #13  
Old 18th November 2010, 16:10
falko falko is offline
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There seems to be something wrong with one of your network interfaces. Did you try to reboot the server?
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  #14  
Old 18th November 2010, 16:21
hairydog2 hairydog2 is offline
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Originally Posted by falko View Post
There seems to be something wrong with one of your network interfaces. Did you try to reboot the server?
Oddly enough, when I tried again later, it worked!
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