New project for RPM-based distros: YUM Web GUI

(ObDisclaimer: I work for these guys.)

Developers at The Prometheus Group recently announced a new open source project on their forums, a web-based interface for YUM that will make it easy to add, remove, and update packages on servers running Redhat-like distributions of Linux. The GUI will be implemented in PHP and Python, and will make use of the RPM modules already present in Fedora Core, Redhat, and like distros. To make it more attractive to sysadmins (who usually have too much to do and too little time to do it all) the web interface is designed to integrate with …

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Random knowledge VIII.

You're getting old if you consider sleeping until 0900 'sleeping in'.



When configuring a firewall with IPTables you have to specify the protocol before the port number(s) in each command. Do this:

iptables -A INPUT -s 1.2.3.4 -p tcp --dport 22 -j ACCEPT

and not this

iptables -A INPUT -s 1.2.3.4 --dport 22 -p tcp -j ACCEPT

If you don't, you'll see error messages to the effect of "Unknown arg '--dport'"

When writing Snort rules, there are a few things to keep in mind. First of all, rules come in two parts: the …

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Random knowledge VII.

The /usr/bin/eject utility on a Linux system is a good way of figuring out which machine has what name in the KVM when you're dealing with a rack of machines, many of which are likely to be mislabelled. Use the eject utility to open the CD-ROM drive and see what machine you're really connected to; then update the labels in the KVM's configuration appropriately.



If your fibre-optic network card isn't seeing any traffic at all, try switching the plugs on the card. Some optical network cables don't have colour-coded connectors so it's easy to plug them into the …

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