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since iptables 1.2.9 release there is an option to use rules at specific |
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times: |
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|
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# iptables -A INPUT -m time --timestart 8:00 --timestop 18:00 --days |
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Mon,Tue,Wed,Thu,Fri -j ACCEPT |
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# iptables --list |
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Chain INPUT (policy ACCEPT) |
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target prot opt source destination |
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ACCEPT all -- anywhere anywhere TIME from 8:0 to 18:0 |
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on Mon,Tue,Wed,Thu,Fri |
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http://www.netfilter.org/documentation/HOWTO//netfilter-extensions-HOWTO-3.html#ss3.19 |
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Maybe you can deny access from unknown ip's during non business hours |
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(local). |
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> I'm getting really annoyed with these SSH probes. While I don't have any |
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> weak |
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> accounts, I still want to cover myself. I want to add an iptables DROP |
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> rule for |
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> 1 minute for any IP that has a failed login through SSH. I already have |
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> metalog |
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> set to run a script which emails me whenever there is a failed login |
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> attempt |
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> (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 |
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> via SSH |
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> from a computer where I don't have keys setup and I accidentally type the |
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> wrong |
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> 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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gentoo-security@g.o mailing list |
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