Home ubuntu

finding port of address already in use

  $ sudo netstat -nlp | grep 80
  tcp  0  0  0.0.0.0:80  0.0.0.0:*  LISTEN  125004/nginx

or

 # sudo lsof -i :25
 COMMAND  PID        USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
 exim4   2799 Debian-exim    3u  IPv4   6645      0t0  TCP localhost:smtp (LISTEN)
 exim4   2799 Debian-exim    4u  IPv6   6646      0t0  TCP localhost:smtp (LISTEN)

Ubuntu 12.04LTS

sudo halt -p

/etc/network/interfaces to make 10.0.1.101 static

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 10.0.1.101
netmask 255.255.255.0
gateway 10.0.1.1
dns-nameservers 8.8.8.8 10.0.1.1

lamp

https://www.digitalocean.com/community/articles/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu

http://10.0.1.101/info.php

ruby1.9.3 rails4.0.0

https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm