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Apparently, though unproven, at 23:40 on Monday 24 January 2011, J. Roeleveld |
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did opine thusly: |
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> On Monday 24 January 2011 19:47:43 Jarry wrote: |
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> > Hi, |
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> > |
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> > I have to change rather complex iptables rules on server |
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> > and I do not want to lock me out as this server is about |
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> > 50 miles away. So how should I do it? |
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> > |
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> > I can back up the old rules by running: |
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> > /etc/init.d/iptables save |
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> > and it will be saved to /var/lib/iptables/rules-save |
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> > (some strange format starting with number like [536:119208]) |
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> > |
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> > I prepared a script with new (modified) iptables-rules, |
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> > which I will run in bash. But in case I screw something, |
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> > how could I force netfilter to load old saved rules, |
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> > if I for whatever reason do not connect to server (ssh)? |
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> > |
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> > Or can I load new iptables-rules for certain time, and |
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> > then force netfilter to load back the old rules again? |
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> > |
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> > Jarry |
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> |
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> You could add the necessary rule(s) to ensure existing connections stay |
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> active. |
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> That way you can enable the new rules and test by openening a new SSH- |
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> connection to the server. |
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> If that works, you're ok. |
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> If not, you can use the existing SSH-connection to go back to the old |
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> rules. |
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It's no help to the OP now, but around here we have a rule: |
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Remote servers without a DRAC do not get installed. Period. |
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-- |
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alan dot mckinnon at gmail dot com |
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