September 2006

PostgreSQL is a free object-relational database server/database management system, released under a flexible BSD-style license. It has features such as Functions, Indexes, Triggers, MVCC and much more. With vacuum you can reclaim storage occupied by deleted tuples. In normal PostgreSQL operation, tuples that are deleted or obsolete by an update are not physically removed from […]

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MySQL Performance site, published tips about tuning your MySQL server Performance. From the article: My favorite question during Interview for people to work as MySQL DBAs or be involved with MySQL Performance in some way is to ask them what should be tuned in MySQL Server straight after installation, assuming it was installed with default […]

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OpenBSD journal has published excellent PF Firewall Ruleset Optimization tutorial. From the article: “This is the first installment in a series of three articles about PF. I originally wrote them as chapters for a book, but then publication was cancelled. Luckily, the rights could be salvaged, and now you get to enjoy them as undeadly.org […]

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The Hauppauge MediaMVP is a network media player. It consists of a hardware unit with remote control, along with software for a Windows PC. Out of the box, it is capable of playing video and audio, displaying pictures, and “tuning in” to Internet radio stations. Alternative software is also available to extend its capabilities. It […]

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This is getting out of control these days. There is an interesting article at LWN about Fighting image spam. From the article: A number of spammers have been evading filters like SpamAssassin (SA) recently by encoding their messages as images. SA already has a set of rules that are meant to combat image spam, but […]

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This guide describes how to back up and recover your MySQL databases with mysql-zrm on a Debian Sarge system. mysql-zrm is short for Zmanda Recovery Manager for MySQL, it is a new tool that lets you create full logical or raw backups of your databases (regardless of your storage engine and MySQL configuration), generate reports […]

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I have already written about how to find and change your network interface speed (NIC), duplex or auto negotiate settings on Linux using ehttool command line options. However, these settings are not permanent. If you reboot the system or if you just need to upgrade/downgrade your port speed, run the ehtool command once your port […]

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