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You cannot just add the sleep function. I will only give 1 minute sleep |
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when you initialing your firewall. |
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|
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The best thing you can do i to only allow certaion ips to connect to your |
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server, fx: |
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|
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iptables -A INPUT -p tcp --dport 22 -s 192.168.0.2 -j ACCEPT |
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iptables -A INPUT -p tcp --dport 22 -j DROPA |
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|
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Which will drop alle connections to port 22 (ssh) expect connections from |
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192.168.0.2 (more can easily be added) |
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|
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-- |
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Kind regards |
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Lasse B. Jensen |
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|
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On Sun, 8 Aug 2004, Andrew Gaffney wrote: |
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|
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> I'm getting really annoyed with these SSH probes. While I don't have any weak |
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> accounts, I still want to cover myself. I want to add an iptables DROP rule |
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> for 1 minute for any IP that has a failed login through SSH. I already have |
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> metalog set to run a script which emails me whenever there is a failed login |
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> attempt (I've had this for a while). Can I just add: |
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> |
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> iptables -A INPUT -s $IP_OF_PROBE -j DROP # to make their scans slower |
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> sleep 60s |
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> iptables -D INPUT -s $IP_OF_PROBE -j DROP |
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> |
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> to the end of my script? I want it at one minute in case I'm logging in via |
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> SSH from a computer where I don't have keys setup and I accidentally type the |
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> wrong password ;) Is there a problem with this idea? |
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> |
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> -- |
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> Andrew Gaffney |
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> Network Administrator |
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> Skyline Aeronautics, LLC. |
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> 636-357-1548 |
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> |
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> |
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> -- |
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> gentoo-security@g.o mailing list |
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> |
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> |
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> |
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|
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-- |
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gentoo-security@g.o mailing list |
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