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Static Routes On RedHat

Here’s the docs from redhat on how to setup static routes:

Let’s say you want to add two static routes to eth1. The first routes to and the second routes traffic from to To accomplish this create a file at:

And place the following lines in the file:

Then restart networking with:


Fixing ethernet interface speed

On redhat, the ETHTOOL_OPTS can provide some control over interface speed. Here’s the description from documentation:

The ethtool utility provides extensive low level control over ethernet interfaces.


Redhat Network Config Resources

Here are some handy references about network config on redhat:

  • /usr/share/doc/initscripts-<version>/sysconfig.txt — A guide to available options for network configuration files, including IPv6 options not covered in this chapter.
  • /usr/share/doc/iproute-<version>/ — This file contains a wealth of information about the ip command, which can be used to manipulate routing tables, among other things. Use the ggv or kghostview application to view this file.

Defining Alias Interfaces

RedHat supports the configuration of alias interfaces via network scripts of the for “

” as described in the documentation here:

Additionally there is undocumented support for alias ranges. Using a single network script of the form “

” a set of alias interfaces can be defined. This if very handly when setting up several aliases on a web server.

Here’s a sample config file named “ifcfg-eth0-range0”:

Alias interfaces can be manually activated/deactivated with “

” or “



Install Fix for Oracle 9i on RHEL 3

I was getting weird jvm errors while running the installer. Fix is documented here:

Another problem involved the installer hanging at “Link pending …”. This was fixed with:

Here a link to a discussion of this issue:

And here’s a link to many more fixes:

And another good link: