Archive for the ‘Web’ Category
Thursday, May 28th, 2009
On the Dutch Moodlemoot I did a presentation about Moodle Networking. Attendance was more than I expected (about 10 people) and response was really good. Instead of doing a button pusher presentation about how to setup Mnet or howto authenticate to your local AD or how the new repository and ...
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Wednesday, October 8th, 2008
Here's a nice post to convert Apache logs from the common to the combined format. AWstats needs the combined format to correctly parse the log files.
Overview of commands
1. find where combined start and common ends:
cat access.log | grep -n -m 1 "\\" \\""
2. split the file there:
csplit --prefix=access.log access.log numberfoundin1
3. ...
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Monday, October 22nd, 2007
Online tools for setting up team development:
Online team space for agile dev teams: assembla
Track hacks: extensions, plugins and macros for Trac
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Monday, October 22nd, 2007
I always get confused when applying or reading ip-range masks. Here is a nice cheatsheet for reference.
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Monday, September 24th, 2007
Some thoughts and links about network, server architecture and setup:
SAN: Storage Area Network {en:Storage_area_network}
Load Balancing
Application Server
Database Cluster
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Monday, September 24th, 2007
Handy tools for webpix:
http://www.tabsgenerator.com/
http://www.reflectionmaker.com/
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Wednesday, September 19th, 2007
Short workshop / presentation about stresstesting with jmeter and badboy.
Interesting subject; stresstesting.
Setup jMeter on my computer. Got use case scripts from Carlo.
Run use cases on different VMs to get a feeling of the program. Tried different settings for threads.
30 threads with a ramp-up of 120 seconds (stable)
40 threads with a ...
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Tuesday, September 11th, 2007
Some tools I came across to monitor servers:
Cacti
Nagios (we are using this)
All can be run on CentOS. Howtos for installing cacti and nagios.
Some background information on {en:Nagios} and {en:Cacti_%28software%29}. And an overview of open source network management software.
Some extensions for nagios:
NagVis
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Monday, September 10th, 2007
Optimization of LAMP applications; some tips stolen from the gallery2 documentation:
PHP:
Use a PHP Accelerator/Cache, recommended is eaccelerator among others. The Zend Optimizer is not a opCode cache and doesn't improve G2 performance very much. A true PHP cache can improve G2 performance dramatically. See: List of PHP accelerators.
Set ...
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Monday, August 27th, 2007
handy apache commands:
apachectl -V -> show compile settings
apachectl -l -> compiled in modules
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