NAME¶

ifcfg-lo - loopback network LAN interface configuration

SYNOPSIS¶

/etc/sysconfig/network/ifcfg-lo*

The local loopback mechanism is used to run a network service on a host without requiring a physical network interface or making the network service inaccessible from/to the other networks the computer may be connected to.

The name localhost normally resolves to 127.0.0.1 (IPv4 loopback address) and to ::1 (IPv6 loopback address).

Example: A locally installed website/service may be accessed via a web-browser by the URL http://localhost to display its home/configuration page.

EXAMPLES¶

Sets up loopback interface lo:

ifcfg-lo

   IPADDR=127.0.0.1/8


   NETMASK=255.0.0.0


   NETWORK=127.0.0.0


   STARTMODE=nfsroot


   BOOTPROTO=static


   USERCONTROL=no


   FIREWALL=no
    

Note: Loopback is automatically created and set up by the Linux kernel. ifcfg file marks it STARTMODE=nfsroot to skip a shutdown on network ifdown requests.

BUGS¶

Please report bugs as described at <https://bugs.opensuse.org>

AUTHOR¶

Marius Tomaschewski <mt@suse.de>
Mikhail Kasimov <mikhail.kasimov@gmail.com>

SEE ALSO¶

routes(5), ifcfg(5), wicked(8).