How do I make my default (or any static) route permanent on Linux (Fedora 9 specifically)?

Question

I'm working on a GUI that displays a list of elements.

All the elements are in a one dimensional iterable array, so displaying them would normally look something like this:

    foreach (Element e: elements) {
        display.Display(e);
    }

I now need a way to organize the elements in a tree structure like in this example:

In my system, there is no distinction between "folder" elements and "file" elements, but I can access an element's 'depth' and 'isExpanded' values.

How can I determine whether an element should be displayed based on data taken from iterating through previous elements?

Solution 1

The gateway is normally set in /etc/sysconfig/network-scripts/ifcfg-eth0, not in /etc/sysconfig/network. For example, on my current machine:

/etc/sysconfig/network

NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=flyboys
NISDOMAIN=ekcineon

/etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
ONBOOT=yes
HWADDR=00:1d:09:31:3a:cc
NETMASK=255.255.255.0
IPADDR=150.102.65.30
GATEWAY=150.102.65.252
TYPE=Ethernet

Note that I set HWADDR because I have two ethernet cards and I want to make sure the right one is assigned to eth0. The configuration for the second card is in /etc/sysconfig/network-scripts/ifcfg-eth1

Solution 2

just edit the /etc/sysconfig/network-scripts/route-ethXX

and write inside: default via ip_address dev device , replace ip_address with your gateway ip and device with the name of the right eth device. but for the Device option its ... optional, set it in the case of multiple eth devices. Works even in case of network restart, the route directive in rc.local works at boot only.

Solution 3

I have not used recent versions of Fedora, but it was often set as a GATEWAY variable in /etc/sysconfig/network.

Of course, if you just wanted it to work, you could just put the commands in /etc/rc.local to be executed when the boot sequence completes.

Comments

[Paul Tomblin]

GATEWAY is usually in /etc/sysconfig/network-scripts/ifcfg-eth0, not in /etc/sysconfig/network.

[Richard T]

Paul, zigdon was right, there is a GATEWAY entry, but it was there all along and apparently was ineffective.

[meerkatlookout]

I've usually just bodged this into /etc/rc.local when I've needed to set up multiple static routes; as long as you don't have any services that rely on that route early on (like an nfs mount), it may be the most expedient solution.

[Richard T]

As I wrote in my original question, rc.local is way late.

[Richard T]

Thanks, Paul. The answer is: put your gateway line in the appropriate interface's script in /etc/sysconfig/network-scripts/ - just as you suggest.

[codeforester]

This should be a comment rather than an answer.