firstval

http://www.thegeekstuff.com/2010/07/rpm-command-examples/

firstval

http://www.tecmint.com/install-cpanel-whm-in-rhel-centos/
http://www.askapache.com/hacking/uninstall-cpanel.html

firstval

git revert HEAD^ -->  for reverting to the next-to-last commit
git checkout -f --> to recover all files that not commit
git reset --hard --> remove newly added contents and files which are already staged
git reset --hard HEAD^ --> remove your latest commit
git clean --force -d --> To remove the untracked files

https://help.github.com/articles/generating-ssh-keys/

firstval

http://mirror.centos.org/centos/
http://rpms.adiscon.com/
http://www.rpmfind.net/linux/rpm2html/
http://www.rackspace.com/knowledge_center/article/install-epel-and-additional-repositories-on-centos-and-red-hat


https://repogen.simplylinux.ch/generate.php

#REMI REPOSITORY
http://rpms.famillecollet.com/enterprise/

firstval

http://www.flatmtn.com/article/setting-openssl-create-certificates

firstval

sudo port install py27-pip
export PATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin:$PATH
pip install awscli

firstval

https://blog.linuxnet.ch/pfsense-important-cli-commands/

How To install pfsense
http://www.tecmint.com/how-to-install-and-configure-pfsense/3/

firstval

http://www.cyberciti.biz/faq/iptables-block-port/
http://stackoverflow.com/questions/19776681/allow-ssh-incoming-outgoing-and-blocking-all-outgoing-besides-specific-ports
http://www.cyberciti.biz/faq/linux-unix-open-ports/
https://wiki.centos.org/HowTos/Network/IPTables
http://www.thegeekstuff.com/2011/01/iptables-fundamentals/

firstval

http://www.tecmint.com/screen-command-examples-to-manage-linux-terminals/

firstval

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Step_by_Step_Guide/ap-doslinux.html

http://www.dba-oracle.com/t_windows_dos_unix_linux_commands.htm

https://msadministrator.files.wordpress.com/2012/10/linux-windows-comparison-of-commands.pdf