Zero Filling a Disk in Linux

The simple way to wipe or zerofill a disk is: dd if=/dev/zero of=/dev/sd? bs=1M However I found an article describing how to zero-fill with a progress indicator using pipebench, installed on Debian/Ubuntu ...

Increasing CentOS LVM under VMWare

Background: I had an existing CentOS machine as a virtual machine running on VMWare ESX Server and it was running out of space so for future reference I did the ...

SquidGuard LDAP User Search and Special Characters

So I had a problem with the ldapusersearch string as some eejit has created an OU with spaces and an apostrophe in the name. So the characters are represented as: comma ...

Flushing local client DNS cache

From info I found here. This is how to flush the local client DNS cache. Windows: ipconfig /flushdns Linux: sudo /etc/init.d/networking restart Mac: lookupd -flushcache

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Browsing all articles from February, 2011

Written by jonny in gdl idl

6
Jul
2011

GDL: Taking It Further

This entry is part 4 of 4 in the series GDL Gnu Data Language

Quick Reference Good PDF introduction to the GDL language. Libraries Hunting around the web there are people producing extra libraries which can be downloaded : NASA IDL Astronomy Libraries SDSSIDL [...]

Written by jonny in gdl idl

6
Jul
2011

GDL: Beginner Code Examples

This entry is part 3 of 4 in the series GDL Gnu Data Language

The Gnu Data Language is an interactive interpreter/incremental compiler for the GNU Data Language, which is primarily used in scientific, astronomical, medical and geo-science data processing applications. It supports graphical [...]

Written by jonny in linux, web design

5
Jul
2011

Website Vulnerability Scanning

So I tested out Skipfish today to do a quick check on a website / web server. Hosted on Google at: http://code.google.com/p/skipfish/ download it, extract it and make and run: [...]