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Blanket blocking SMTP with whitelist

So using a VPS environment, whereby we need to block outbound SMTP by default (spammers), with the ability to unblock when needed. We have found some scripts eg: iptables -I FORWARD 1 -d $VPS_IP -p ...
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0answers
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How to forward libnotify to growl

I'm looking for a simple solution to forward libnotify notifications (from knotify4) to a remote growl servers (running on Windows and Android). So far I'm only able to send remote growl ...
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0answers
113 views

Configure courier to forward certain mails to external addresses

I have a debian 6.0 server with courier/courier-mta set up and some local domains. Now I want to create some forwards for some email address that should go directly to external addresses as there are ...
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0answers
105 views

Reverse ssh-agent forwarding and unlocking remote keys with your local keys

So the following two things should both be possible to do with ssh the question is just how difficult they would be and I'm hoping someone can give me an easy answer. 1) Suppose I have several ...
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Shell script use ssh forwarding to send a file to a second system

I have ssh forwarding enabled and ssh to server A. On server A I want to run a script as root and take advantage of the ssh key being forwarded for USER to send a file to system B. I'm getting a ...
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Is it possible to move established connections on one port, to another without dropping data?

this problem has been bugging me for a couple of days now. I can't figure out a good enough solution using iptables without having dropped packets. So here is the back story. Say I have a client ...
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94 views

How to route 3 computer in wireless ad-hoc network?

I have three computers connected on the same wireless ad-hoc network with the following adresses : 192.168.1.3 <-----> 192.168.1.5 <-----> 192.168.1.6 On computer 5, I only did : ...