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| comp.security.ssh SSH secure remote login and tunneling tools. |
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20/08/2007, 12h14
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#1 |
Messages: n/a
Hébergeur: |
sshd and dynamic firewall rules?
Hi
Is there the possibility to trigger an event from sshd to set dynamic firewall rules? For example to block a certain ip-adress after repeated login fails. There are constantly dictionary attacks against my SSH-Server. (SuSE Linux 10) TIA Andreas |
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20/08/2007, 15h48
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#2 |
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Messages: n/a
Hébergeur: |
Re: sshd and dynamic firewall rules?
"Andreas Wolf" <bounce@example.com> writes:
> Is there the possibility to trigger an event from sshd to set dynamic > firewall rules? > For example to block a certain ip-adress after repeated login fails. > There are constantly dictionary attacks against my SSH-Server. (SuSE > Linux 10) Numerous tools do this, usually by looking at the logs for failed logins. One is sshblack: http://www.pettingers.org/code/sshblack.html Another thing you can do is move SSH to a nonstandard port. This provides no security advantage but will reduce the noise in your logs from the script kiddies. -- Alan Hadsell |
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