Alex Simenduev shamil

Client-side SSL

Create a Certificate Authority root (which represents this server)

Organization & Common Name: Some human identifier for this server CA.

openssl genrsa -out ca.key 2048
openssl req -new -x509 -days 365 -key ca.key -out ca.crt

Create the Client Key and CSR

how to install nagios3 with mod-gearman on Ubuntu

configure apt to not install sugested and recommended packages

sudo tee /etc/apt/apt.conf.d/02recommends <<END
APT::Install-Recommends "0";
APT::Install-Suggests "0";
APT::AutoRemove::RecommendsImportant false; # optional
END

	def compile_asset?(path)
	# ignores any filename that begins with '_' (e.g. sass partials)
	# all other css/js/sass/image files are processed
	if File.basename(path) =~ /^[^_].*\.\w+$/
	puts "Compiling: #{path}"
	true
	else
	puts "Ignoring: #{path}"
	false
	end

	Use folowing steps to repackage dep package:

	1: Extract deb package
	# dpkg-deb -x <package.deb> <dir>

	2: Extract control-information from a package
	# dpkg-deb -e <package.deb> <dir/DEBIAN>

	3. After completed to make changes to the package, repack the deb
	# dpkg-deb -b <dir> <new-package.deb>

	# how to redirect from one port to another using iptables
	###

	# install following package in order to preserve the iptables rules
	sudo apt-get install iptables-persistent

	# redirect from port 80 to port 8000
	sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8000

	# redirect from one IP to other

	#System wide associations:

	sudo sed -i 's/gedit.desktop/yournew.desktop/g' /usr/share/applications/defaults.list

	# Just your user's associations:

	sed -i 's/gedit.desktop/yournew.desktop/g' ~/.local/share/applications/mimeapps.list

	# If you're using the PPA for Sublime Text 2, there is already a .desktop file for it
	# sitting in `/usr/share/applications/` so you can just run:

	#!/usr/bin/env ruby1.8

	class Workaround
	def initialize target_pid
	@target_pid = target_pid

	first_child
	end

	def first_child

	# Show all grants
	mysql --skip-column-names -e "SELECT user, host FROM mysql.user" \| sed 's/\t/"@"/g; s/^/SHOW GRANTS FOR "/g; s/$/";/g;' \| mysql --skip-column-names

	$ augtool
	> set /augeas/load/Spacevars/incl[last()+1] "/etc/redis/redis.conf"
	> load
	> print /files/etc/redis/redis.conf

	function uuid() {
	var uuid = "", i, random;
	for (i = 0; i < 32; i++) {
	random = Math.random() * 16 \| 0;

	if (i == 8 \|\| i == 12 \|\| i == 16 \|\| i == 20) {
	uuid += "-"
	}
	uuid += (i == 12 ? 4 : (i == 16 ? (random & 3 \| 8) : random)).toString(16);
	}