Modify ip-tables directly in ubuntu

To modify ip-tables directly in ubuntu First save off your current config: $ sudo -s $ iptables-save > /root/working.iptables.rules $ iptables-save > /root/working.iptables.rules.to.modify At this point you can modify the file.  Once your are satisfied restore it # iptables-restore < /root/working.iptables.rules.to.modify  

useful active directory scripts

Scripts to manage Active Directory Users Appending a Multi-Valued Attribute Appending a Phone Number Adding a Route to the Dial-In Properties of a User Account Adding a User to Two Security Groups Appending Address Page Information for a User Account Appending a Home Phone Number to a User Account Assigning a Published Certificate to a... » read more

Red Hat Linux cheat sheet commands examples RHEL

Useful Linux Commands (Red Hat) (http://www.cse.buffalo.edu/~eisner/DLW) Revised 3/1/2000 Getting information man commandname display the manual page for a particular command named commandname man -S sectionnumber commandname display the manual page under a specific section numbered sectionnumber for the command named commandname. Sometimes the same command will exist in more than one section. man alone will... » read more