Brandon Yap

An iPhone users guide to the Telstra NextG network

Updated 30/01/2012 The Telstra NextG network is undoubtedly the largest and highest performing cellular mobile network in Australia, which makes it a perfect pair with your iPhone. This article aims to give you a through rundown of things you need to know to make use of this network. After all you are paying an arm and a leg for it! Network Selection By default the Carrier selection will be set to Automatic. There are 4 networks to choose from. Telstra Mobile, 3TELSTRA, YES OPTUS, and vodafone AU. 3TELSTRA is the joint 3 and Telstra network operating on the 2100 MHz […]

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How to quickly drain your Macs battery

Firstly why would you do this? The simple answer is when calibrating your battery, the last thing you want to do is sit around waiting for your battery to drain normally. This procedures accelerates the process. There are a number of ways to drain your Macs battery such as playing a game, or watching a DVD. But I have found a quicker way to do it which doesn’t require you to be at your computer. Just open up one terminal per processor core and run this in it: yes > /dev/null Don’t run it without the /dev/null otherwise it will

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Serious ESXi bug with BL685

This article applies to using ESXi 3.5 with HP BL685 blade servers. Not too long ago, our ESXi servers started dying randomly, it started with the ESXi servers becoming disconnected from Virtual Center. When sshing into the system, there were a bunch of unkillable processes, some of these are listed below: busybox find /bin/ash hostd vpxa The /opt directly also mysteriously went missing and there were timeouts from vmhba2 which was the scsi controller. Thankfully the VM’s running on the system still keep running. Running /sbin/services.sh stop does not kill the processes and starting new ones on top of them does

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Bittorrent crashing your ADSL router

Ever had a problem doing lots of Bittorrenting only to have your router reset on you for no apparent reason? A little known cause of this problem are two features implemented by some Bittorrent clients called DHT and PEX. DHT stands for Distributed Hash Table and allows for trackerless torrents. PEX stands for Peer Exchange and lets you discover peers quickly by asking discovered peers for other known peers. These features are great and allow for more efficient Bittorrenting. Problem is that they cause the Bittorrent client to generate hundreds of connections through the router, and this will often fill

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