Cheat sheets

Here are some interesting cheat sheets that people posted in the Pentest mailing list:

Networking cheat sheets: 

• Protocols: Spanning Tree, Ipv6, Ipv5, OSPF, EIGRP, BGP
  
• Applications: Tcpdump, Wireshark
  
• Reference: Common ports, IP access lists, Subnetting
  
• Technologies: MPLS, QoS, Vlans, IOS version
  

Link PacketLife

Linux-Unix Command Line sheets:

The name says all.

Link Scottklarr

Miscellaneous:

Here are very good quality cheatsheets, this site used to be "IloveJackeDaniels".

• Regular expressions
  
• Subversion
  
• CSS
  
• PHP
  
• Mod_rewrite
  
• SQL SERVER
  
• HTML
  
• Ruby on rails
  
• ASP/VBScript
  
• Mysql
  
• Etc

Link AddedBytes

The rest:

A very big collection of many cheat sheets, you can find things like:

• Jquery
  
• JSP
  
• Java
  
• Firefox
  
• Coldfusion
  
• htacces
  
• Gimp
  
• Django
  
• mod_rewrite
  
• Mysql
  
• Oracle
  
• Perl
  
• Python
  
• Ruby
  
• Sendmail
  
• Solaris
  
• SSI
  
• Sybase
  
• UML
  
• Vim
  
• XML
  
• XSS
  
• etc.
  

Link Cheat-Sheets.org