Technology Insights

Linux Create Fake Ethernet Interface

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.

Technology Errors

svn co Error: Server certificate verification failed: issuer is not trusted

When attempting to sync a repo to a server or to your desktop you will receive an error if the certificate being used to protect the HTTPS repository URL is not issued by the proper authority. Many companies generate their own certificates for repository URL’s especially if the repository is primary used internally. In this example I was attempting to sync a repository using SVN to a folder on the desktop of my Macbook Pro running OSX Mountain Lion. Below I describe the error in more detail followed by resolution to the svn certificate error.

Technology Insights

SVN Mountain Lion

I needed to use SVN on a new installation of Mountain Lion OSX on my Macbook Pro and initially assumed it would be there because I already had Xcode installed however it was not or was not located in my path. After playing around in the Xcode interface for a moment I located the Command Line Tools package available for download which ended up installing svn on the command line. Below I describe how to verify if SVN is installed on OSX and explain how to install it if it does not already exist.

Technology Errors

The operation can’t be completed because you don’t have permission to access some of the items

Ever attempt to delete the Trash on OSX and run into an error that says you can’t complete the operation because you don’t have permissions to access some of the items? I am not sure how often this will happen to the average user that wouldn’t already know how to resolve the problem since the chances are high that the file or files created with different permissions required you to change to the root user in the first place. Anyhow below is a better description of the issue along with a screenshot followed by how to resolve the problem emptying your Trash on your Mac.

Technology Insights

Pretty Link Twitter Badge Not Displaying (Update)

I initially wrote an article about the Pretty Link Twitter Badge not displaying back in March of 2012 and it appears some things have changed since then. The issue in my case is a conflict between the Pretty Link WordPress plugin and Greg’s High Performance SEO WordPress plugin. Since the original article it appears that the GHPSEO has modified the location of a variable I modified to resolve the issue. Below is information on how to resolve.