Category: Server
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Mikrotik VRRP On VMWare
I keep a VMWare server at the house to mock up configs on. I love being able to ramp up and down to test as many routers at once as I like. While working on an VRRP implementation recently I hit a small problem…it wouldn’t work! I made a little video outlining the problem and…
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Expand A Drive On Virtualized Windows 2008
I CAN’T belive how easy this was…Just crazy. Basically, you enter vSphere and expand the HD. Enter the server’s disk management and refresh. Click expand on the drive you want to expand, click next a couple of times…and you are DONE! Just follow these quick and easy steps here on petri.co.il.
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Free Branch Circuit Monitoring(BCM) Collection And Billing
Branch Circuit Monitoring(BCM) is basically monitoring how much amperage is flowing through your electrical circuits. Every major electrical PDU/RPP vendor sells these. They have small current transformer(CT) rings that you run the hot side of your power through and then into the breaker. These BCMs generally have a Modbus interface. It is generally Modbus RTU,…
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VM Failover With SAN Replication Across Multiple Datacenters
This video and the included configs/diagrams show how to have failover with VM infrastructure/SAN replication in multiple datacenters. This basically leverages the power of BGP to move our public addressing. BGP is the ONLY choice to have addressing seamlessly migrate from one site to another…it is the protocol that the Internet happens to run on…
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Rogue Access Point Detection/Mitigation
This is the article relating to my 2011 MUM presentation. I was trying to think of something fun and different for this year’s MUM, so I came up with rogue access point detection/mitigation. The project surrounds having a Mikrotik probe connect to any open access points it can find. It then trys to access a…
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WordPress Updates Without FTP
Normally when you try and update your wordpress it will prompt you for “connection information”. It wants FTP or FTPS information. If you make the /wp-content folder writable by the webserver, it won’t prompt you anymore and will pull updates directly. Generally the apache service is run by user apache. You can change ownership of…