TCP/IP - PowerCram Blog

Get your external IP address – TEXT ONLY

There are a lot of useful services online where you can quickly and easily get your external IP address, however they are almost all laden with a bunch of other crap, like ads and stuff. For a clean, simple text only view of your external IP address go to I created a shortened URL. . .

DenyHosts: Remove / Delete an IP address

How do I remove my own home IP address from DenyHosts?Simply removing your IP from /etc/hosts.deny does not work since DenyHosts keeps track of the attempts in the /usr/share/denyhosts/data directory. In order to remove your IP address you will need to do the following. Step # 1: Stop DenyHosts # /etc/init.d/denyhosts stop Step # 2: Remove Your IP […]

Linux Change MTU Size

How do I change MTU size under Linux? You need support in both network hardware and card in order to use JumboFrames. If you want to transfer large amounts of data at gigabit speeds, increasing the default MTU size can provide significant performance gains. Changing the MTU size with ifconfig command In order to change the MTU size, […]