Wilson Silva wilsonsilva

Software architect lost in love with software engineering as a mode of intellectual exercise and expression. Progressively right > consistently wrong.

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wilsonsilva / post-receive.sh

Created September 16, 2014 22:28

post-receive hook for the production and staging environments

	while read oldrev newrev ref
	do
	branch=`echo $ref \| cut -d/ -f3`
	if [ "production" == "$branch" -o "master" == "$branch" ]; then

	git --work-tree=/var/www/tracker/production/ checkout -f $branch
	cd /var/www/tracker/production/
	# Install any packages, if needed
	npm install
	# Restart the application. Note: the application uid should be 'app'

wilsonsilva / british

Last active August 29, 2015 14:04

My notes on the british accent

	http://www.lbc.co.uk/

	both - beuth
	talking - toukin
	naughty - nouty
	no - neu
	so - seu
	you - yeu
	cant - cânt
	daughter - douter

wilsonsilva / set_timezone.sh

Created July 29, 2014 10:25

Set timezone in CentOS

	# Sets the timezone to Europe/Lisbon
	sudo mv /etc/localtime /etc/localtime.bak
	sudo ln -s /usr/share/zoneinfo/Europe/Lisbon /etc/localtime

wilsonsilva / install_ruby.sh

Created July 23, 2014 17:44

Install ruby and rubygems from source

	# TODO: Use variables for the versions
	# TODO: Accept command-line arguments and install everything

	# Install Ruby

	cd /tmp
	wget http://ftp.ruby-lang.org/pub/ruby/2.1/ruby-2.1.2.tar.gz
	tar xvzf ruby-2.1.2.tar.gz
	cd ruby-2.1.2
	./configure --prefix=/usr

wilsonsilva / cls.sh

Last active August 29, 2015 14:02

Reset Command Line

	# Create an alias for the command (an abbreviation)

	alias cls='echo -en "\ec"'

	# Usage:

	cls

wilsonsilva / arpwatch

Created May 26, 2014 21:27

Arpwatch configuration

	# -u <username> : defines with what user id arpwatch should run
	# -e <email> : the <email> where to send the reports
	# -s <from> : the <from>-address
	# -i <interface> : override the default network interface
	OPTIONS="-u arpwatch -e wsilva -s 'root (Arpwatch)' -i wlp3s0"

wilsonsilva / arp_tables_mitigation.sh

Last active September 26, 2015 23:25

ARP poisoning mitigation

	#!/bin/sh

	# Set the router IP and MAC addresses before running the script
	ROUTER_IP_ADDRESS=192.168.0.1
	ROUTER_MAC_ADDRESS=10:FE:ED:4F:FD:3A

	arptables -P INPUT DROP
	arptables -P OUTPUT DROP

	# Only accept arp requests from my router.

wilsonsilva / remote_git_repo_instructions.txt

Created April 28, 2014 01:37

How to set up a remote git repository on a remote machine

	On the remote server:

	mkdir -p /home/username/repositories/my-repo.git
	cd /home/wsilva/repositories/my-repo.git
	git init --bare

	On my machine:

	git remote add git remote add origin username@hostname:/home/wsilva/repositories/my-repo.git
	git push origin master

wilsonsilva / nginx.repo

Created April 27, 2014 15:30

nginx.repo

	[nginx]
	name=nginx repo
	baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
	gpgcheck=0
	enabled=1

wilsonsilva / duplicate_pg_database.sh

Last active August 29, 2015 13:59

Duplicate Postgres Database

	su - postgres
	pg_dump -f /tmp/dump_name.sql -U postgres current_database_name
	psql -f /tmp/dump_name.sql new_database_name

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