RedHat, NFS and static ports

Using NFS between two machines on the same network is usually free of hassle, so the default behaviour – on Linux, at least – is fine and can be left as it is. However, in a commercial setting (such as the ones I manage in my day job) it’s often the case that the machines might not be on the same network – or even in the same location, for that matter. It’s likely that there’s a number of network devices in between the machines, and the way NFS uses portmap can sometimes make things frustrating.

Luckily, it’s really easy to fix.

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PXE booting a Debian Squeeze install

Update: I’ve not tested myself, but the comment from Sombunall below points out that package names for the TFTP server and the DHCP server have changed since I wrote this post!

It’s often the case that there’s no easy way of installing a machine that doesn’t have any removable media. For instance, I have an old Compaq Deskpro EN that’s too old to support booting from USB, so using something like UNetbootin is out of the question. Luckily, there’s an an alternative, which is to PXE boot an installer over the network.

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iproute2: Life after ifconfig

The standard network tools ifconfig, netstat and route will be familiar to anyone with more than a passing interest in UNIX or any of its derivations. Linux is no exception, and if you hop on to your nearest Linux machine, you’ll find these installed. However, for the past few years ifconfig and its ilk (often collectively referred to as net-tools) have been deprecated in favour of the iproute2 suite.

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