Centos VLAN trunking
Centos can accept and easily handle VLAN trunks just as same as doing Access mode. Let’s suppose that you have a WAN interface in access mode (so to say, it’s a plainRead More…
Centos can accept and easily handle VLAN trunks just as same as doing Access mode. Let’s suppose that you have a WAN interface in access mode (so to say, it’s a plainRead More…
This article will describe how to install Apache on Centos 6.5 and set it up for basic web services, insluding php (with apc), perl, cgi and ruby scripting. Let’s install the pacgagesRead More…
This article will explain how to install OpenVPN on Centos 6.5 (x64) on routing mode. Why routing mode? Well, it consumes less bandwidth than the bridging mode (some call this smaller overhead),Read More…
Nowadays, iptables support a so called Layer 7 filtering, which makes things signifficantly easier and more effective whem it comes to blocking torrent with a help of iptablesm or just filtering thoseRead More…
Some routers can block Facebook (or any other page) with an URL keyword. Yet, this becomes a problem when the page reverts to a secure connection (https). Lately, iptables supports so calledRead More…
OpenDKIM will give Your mail a signature that will eventually lower the spam score of the mail comming from your domain. This will help signifficantly to exclude these mails from being considered as spamRead More…
During the processing of the emails Amavis-new conducts a series of tests, including so called bad-header checks which usually give a headache to system engineers because of false detections (most commonly aRead More…
Installing Centos 7 with a minimal install option will leave you in a funny situation, where no “net-tools” package is installed, so (as far as I can tell) you can’t bring upRead More…
Persistent route (static, but not a default route) Say, you have route like this: route add -net 192.168.210.0/24 192.168.1.3 dev eth1 And you want to make it persistent (and oviously static) –Read More…
I often need to know how much bandwidth is my linux gateway/router box using, specially if there’s any P2P traffic (torrents) and from which IP address on the LAN is it coming.Read More…