#firewall Articles


  • 2013-07-17
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Make your own L2 Firewall!

Is what I did this week during the SDN Course on Coursera :) Within mininet or with a real OpenFlow capable switch, you can point the switch to use a controller. The controller would figure out all the smart stuff and the switch only does what the controller tells it to …

  • 2012-06-13
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Red Hat Certification – RHCE - Course Outline

Howdy! In case you saw my previous posts I've been prepping for a RHCE course the last couple of weeks. Here are the posts based on the objectives: http/https dns ftp nfs smb smtp ssh ntp Odds are quite high that I've missed something or not gone deep enough …

  • 2011-02-28
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RHEL and web-server

Another thing you will notice if you are used to debian is that RHEL has iptables enabled by default. To alter it you use the 'iptables' command. It is quite complex and there are good guides out there. If you just want to let http and ssh through you can …