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Cam Jones
Asked: 2014-09-03 18:03:53 +0800 CST

How to change internal IP address from DHCP to static?

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I have a pc running Ubuntu server 14.04.1. The internet was set up using DHCP I believe. I want to keep the same IP and subnet I have now but just change it to static for the internal IP.

command-line

1 Answers

  1. Best Answer

    You want to go by the classical interfaces file configuration, /etc/network/interfaces.

    Edit the file:

    sudo su
nano /etc/network/interfaces

    Its content is invariably the following lines:

    auto lo
iface lo inet loopback

    And then the ethernet device, eth0 in this case, with the following lines:

    Ip by dhcp:

    auto eth0
iface eth0 inet dhcp

    To switch to static IP, knowing the parameters in use by ifconfig, you must place similar lines to these:

        auto eth0
    iface eth0 inet static
    address 192.168.10.5
    netmask 255.255.255.0
    network 192.168.10.0
    broadcast 192.168.10.255
    gateway 192.168.10.1

    Of course you should change the values ​​for your network.

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