Posts Tagged “ifconfig”

There could be numerous reasons to create a fake Ethernet interface on a Linux server though I have heard that people might do so to get around licensing of software that is tied to the MAC address of a specific Ethernet port. You really just enable a dummy Ethernet interface and assign the MAC address to it which is explain in more detail below. The easiest way to do this is to simply assign a MAC address to an Ethernet interface you are not using on your server where the drivers have already been installed automatically. If you do not have a spare Ethernet interface then the instructions below will assist you to accomplish your goal.

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It can be useful to set temporary environment variables from the command line in Linux. Even more useful is the output of a long command being set to a single environment variable. Below I show an example of setting an environment variable followed by setting an environment variable to the output of a command or string of commands.

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I find myself on a regular basis looking for various debconf variables to set before installing packages on Ubuntu. This is typically to not have to type in the answers on the various configuration screens or because I want to script an install of some package. If the package has never been installed before on that specific server then the debconf variables will not display. You can always login to another server where the package is installed to see the variables but I am going to start posting information for common packages here so others can easily find them when searching.

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Yesterday I wrote an article relating to logging into the F5 BIG-IP LTM VE VMware image console using the default username and password however some people may prefer to perform their configurations using the BIG-IP LTM VE GUI which has a different default user and password. First you will need to locate the IP address of he BIG-IP LTM instance from the console and then you can type that IP address into your favorite web browser to then login as explained in more detail below. Please also note the supported web browser versions below for BIG-IP LTM version 10.1.

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Earlier I wanted to see if any PPTP clients were connected to an internal network through a pfSense firewall but wasn’t sure best way to do it. Turns out that outside of the pfSense command line I am not sure there is a best way so below I describe how to check for PPTP connected clients via the pfSense CLI as we as numerous way to check for connected clients via the pfSense web interface.

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