Remote firewall changes, Was: Newbie Question About System Update

Wed Apr 20 06:32:05 PDT 2005

Aristedes Maniatis schrieb:

> On 20/04/2005, at 6:05 AM, Scott Robbins wrote:
>
>> (And of course the obvious--DO NOT shut down the sshd daemon.)  :)
>>
>> Ok, everyone who has NEVER ever made that mistake (or locked themself
>> out with a firewall rule, accidentally putting it into effect before
>> testing) raise their hand.  :)
>
>
> Yes, that would be me. But someone taught me a great trick...the "at" 
> command. So, just before you blow away your access with changes to 
> ipfw, do this:
>
> echo "ipfw add 1 pass all from any to any" at now +10 minutes
>
> Then if all goes OK, use atq to remove the queue item. If not, wait 10 
> minutes...
>
>
> Ari Maniatis
>
>
>
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May I nominate you for some kind of award? That's just great!

*out for damaging his server*

Cheers
Sebastian