Author Archives: George Notaras

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About George Notaras

George Notaras is the editor of the G-Loaded Journal, a technical blog about Free and Open-Source Software. George, among other things, is an enthusiast self-taught GNU/Linux system administrator. He has created this web site to share the IT knowledge and experience he has gained over the years with other people. George primarily uses CentOS and Fedora. He has also developed some open-source software projects in his spare time.

The use of the uppercase X in chmod

I am aware that there are numerous guides about file permissions in linux out there. This post is not intended to be another tutorial. I just wanted to emphasize the use of uppercase X when modifying regular file or directory permissions. This info seems to be missing from most of those guides.

Monitoring a pipe…

It is sometimes needed that you monitor the progress of data through a pipe. After searching around the net, I finally discovered a little terminal-based utility that does exactly that! It’s called Pipe Viewer or just PV. Here is some quick info on how to use this tool.

User management from the command line

This is a short article about the most common practices in user and group management from the command line. The information is specific to Fedora Core and Red Hat based distros, but would do for any distribution probably with slight differences in the command options.

Meld…

Meld is a visual diff tool. I’d say it’s one of the most useful applications I have ever used. You can compare two or three text files or directories at the same time or work with CVS and SVN directories and files. It displays the differences in a very handy and visually attractive way. Supports…

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Fedora sound recording problems… solved

Today I realized that my system’s ability to record sounds was gone… I had set it to record a TV show a couple of days ago, and when I sat back to watch it this morning, I was surprized by the fact that the clip had no sound! Actually, the sound stream was just silence!

SSH Tunnels Headaches

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I’m writing a VNC mini howto and I got stuck with something. I wanted to do the following with a single command: create the SSH tunnel (local port forwarding) execute vncviewer on the local machine have the SSH tunnel to be automatically closed at the time vncviewer was closed