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Postfix error – mail for domain loops back to myself

I am hosting multiple domains on my box, using this guide on, and after creating the first mailbox on one of them, yesterday i encountered an error : mail for domain loops back to myself

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Windows XP USB Floppy problem

One day i needed to install Windows XP on a laptop with Intel SATA AHCI enabled. I failed integrating the drivers with nLite (it’s because i used a SP3 version, instead of XP SP2 – but this is another story). It appears that Windows XP doesn’t “support” my USB Floppy during it’s install. Yes, it …

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Using cacti with HP Procurve 2510-24 (J9019) switch and Ubuntu

After adding my APC UPS to cacti, i wanted to see if i can do the same for my HP 2510-24 switch (J9019). The information i managed to collect for the HP switch is : CPU Usage Memory Usage MAC Count Port traffic OID’s used : CPU Usage – . MAC Count – . Memory …

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Using Cacti with APC UPS and Ubuntu

Cacti APC UPS image

Tested on : Ubuntu 10.10 Server x64 Cacti 0.8.7g with NET-SNMP 5.x and RRDTool 1.4.x APC UPS BR1500I with USB connection and apcupsd (3.14.8-2) package. The original forum topic is here. You need to have apcupsd package installed, along with cacti. Cacti can monitor my APC UPS using two scripts that rely on the information …

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XP SP2 and WPA2 Wireless encryption

WindowsXP-KB893357-v2-x86-ENUIn order for Windows XP SP2 computers to join wireless networks using WPA2 you must install the following update : KB893357 from Microsoft (validation required), or you can get it from here, without validation.

Using Cacti with DD-WRT and Ubuntu

Tested on : Ubuntu Server 10.10 x64 DD-WRT v24-sp2 (08/07/10) std running on TP-Link TL-WR1043ND Cacti 0.8.7g with NET-SNMP 5.x and RRDTool 1.4.x After installing cacti (follow this tutorial) , i used this template. Original template location is here . To use the template you need to upload theese files to : ddwrt_assoc_clients.xml to resource/snmp_queries/ …

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After replacing a normal router with a Cisco 881K, i had to re-assign static addresses to a couple of printers (actually one – because the other has a LCD panel and i can manually enter it’s IP address). The problem was that Cisco documentation states that after creating a dhcp pool , you just need …

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