#linux Articles


  • 2011-05-09
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HEPIX Spring 2011 - Day 4

Dinner on the 3rd night was amazing. It was at the hotel Weisse Schwan in Arheilgen outside Darmstadt and it was a nice reception hall with big round tables, waiters with lots of wine and great buffet food. A+ Cloudy day! Or - Infrastructure as a Service - IaaS A few had …

  • 2011-05-05
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HEPIX Spring 2011 – Day 3

Day 3 woop! An evaluation of gluster: uses distributed metadata, so no bottleneck that comes with a metadata server, can or will do do some replication/snapshot. Virtualization of mass storage (tapes). Using IBM's TSM (Tivoli Storage Manager) and ERMM. Where ERMM manages the libraries, so that TSM only sees …

  • 2011-05-02
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Rename files in Linux - mv

Hey! This is an awesome little trick I just learnt about: instead of doing mv file1.txt file1.txt.old you can do this mv file1.txt{,.old} and it will automagically add a .old at the end of the filename. This is called a brace expansion: http://tldp.org …

  • 2011-05-01
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HEPIX Spring 2011

I'm heading to Hepix this whole week! Looks like there's some really interesting topics like: Lustre, glustre, ipv6, stuff about the CERN it facilities, Scientific Linux report, cloud/grid virtualization, Oracle Linux. I'll sure be doing a bit of blogging about what's going down.

  • 2011-04-20
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Installing Squid 3.2 on CentOS 5.3

Giving this one a shot :) I will be compiling it myself as well. Squid for those who do not know is a proxy server. Proxys can be used for many things, but one great thing if you have a thinner connection to the Internet, you can use this to speed …

Making use of IBM Laptop T40 – Part 4

Logging in! Wireless worked straight from the start. It says that my battery probably is broken (only 28% capacity). Some 2.6~GB is used by the default installation out of my 40GB disk. 1.6GB for swap. Step 1 - set up Synergy This is so I don't have to …

  • 2011-04-18
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Making use of IBM Laptop T40 – Part 3

Preface Two previous posts: Part1 - thoughts before installing Part2 - ultimate boot CD - for diagnostics I ran the laptop with google-chrome 10 and two flash-pages loading all night, no blue-screens, no errors in event viewer. No actually it looks and feels pretty ok. It's not very fast, but I suspect this …

  • 2011-04-17
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Making use of IBM Laptop T40 – Part 2

Previous post in this series: https://www.guldmyr.com/making-use-of-ibm-laptop-t40-part-1/ I'm going to try to put ubcd on an old USB pen I have, lots easier than burning a CD/DVD. Which I may not even have. It's an old Jens of Sweden 1GB mp3-player, that doesn't start unless plugged …

  • 2011-04-16
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Making use of IBM Laptop T40 - Part 1

Next project coming up! I want to have the laptop running so that I can have some use for it. Maybe run some services on it instead of in a VM on my desktop? But also so that I can chat while playing games ;) I want to put Linux on …

gnome-screensaver uses a lot of memory

Just checked out a memory useage script (because honestly I find top a but too complicated). I found one that looks good on asim.pk . The script is a nice little perl script. Just download it from the link and set chmod +x ps_mem.pl and you can run it …