BookMarX

• Add a hard drive in Linux with LVM
  
  
• Useful Unix Tools which include a Unix Timestamp Converter and an .htpasswd Encryption tool among others.
  
  
• Open Source Disk imagining & cloning
• http://www.clonezilla.org/ 
  
  
• Best Anti-Spam & Anti-Virus filter for SMTP Gateways
• http://www.mailscanner.info/
  
  
• Excel Tips & Tricks
• http://www.contextures.com/tiptech.html 
  
  
• alternatives (Alt to commercial software)
• List of free software 
  
  
• Bash Shell scripting
• http://bash.cyberciti.biz/ 
  
  
• Securing RHL
• http://www.puschitz.com/SecuringLinux.shtml 
  
  
• Read_Only Domain controller Step-by-Step Guide
•  http://technet.microsoft.com/en-us/library/cc772234(WS.10).aspx 
  
  
• Advanced MAC OS X config
  
  
• Reset MAC OS X PRAM & NVRAM 
• http://support.apple.com/kb/HT1379
  
  
• "Blogger Code formatter"
•  http://codeformatter.blogspot.com/
  
  
• Export Apache SSL cert & Key to IIS
• http://www.entrust.net/knowledge-base/technote.cfm?tn=5768
  
  
• Google Admin ToolBox/
• https://toolbox.googleapps.com/apps/main/
• DIG
• Browser Info
• Email Header Analyzer
• Check MX Records
  
  
• DNS Propagation Checker

• Convert CIDR to IPv4 & vice versa plus netmasks, decimal conversion, ping, traceroute:
• IPAddressGuide.com

CIDR to IPv4 Conversion

CIDR