Ubuntu Tips'n'Tricks

• Enable root user
  
• user@ubuntu:~$ sudo passwd root
• insert the password for root user
  
• Configure OpenSSH server (the system is connection to internet)
  
• user@ubuntu:~$ sudo apt-get install ssh openssh-server
• the service installed is the "ssh", to restart use the command:
• user@ubuntu:~$ sudo /etc/init.d/ssh restart
• Configure Network Services
• enable dhcp service
  
• user@ubuntu:~$ sudo vi /etc/network/interfaces
• insert these lines in file "interfaces" :
  
• # The primary network interface
  auto eth0
  iface eth0 inet dhcp
• to activate the network interface :
  
• user@ubuntu:~$ sudo /etc/init.d/networking restart
• configure static ip address
• user@ubuntu:~$ sudo vi /etc/network/interfaces
• insert these lines in file "interfaces" :
• # The primary network interface
  auto eth0
  iface eth0 inet static
  address 192.168.66.60
  gateway 192.168.66.254
  netmask 255.255.255.0
  network 192.168.66.0
  broadcast 192.168.66.255
• to activate the network interface :
• user@ubuntu:~$ sudo /etc/init.d/networking restart