Update 27/02/2011: Added IR control and password passthrough.I’ve recently put together a CCTV solution using a few Foscam FI8918W cameras and the excellent ZoneMinder software. This is all running on a CentOS 5.5 virtual machine under Hyper-V (more on this setup another time). The Foscam cameras have pan, tilt and the ability to set and…
ZoneMinder Control Script for Foscam FI8918W
By Howard | Published February 26th, 2011NAT Loopback broken on Draytek Vigor 2820 firmware > 3.3.3
By Howard | Published January 5th, 2011After a frustrating morning testing several different updated firmwares, I’ve determined that NAT (Network Address Translation) loopback is broken on firmwares 3.3.4.1 and 3.3.5.1 for the Draytek Vigor 2820VN. Other routers in the family are likely to be similarly affected. NAT loopback you say? What’s that? Consider the following diagram showing a web server and…
Exchange 2010 SP1 breaks pre-SP1 Transport Agents
By Howard | Published December 21st, 2010I’d encountered a few anomalies with the Exchange 2010 server over the last few weeks, so took the opportunity yesterday to upgrade it to SP1 and the latest Update Rollup. This revealed an annoying feature of – or bug in – Microsoft’s code that loads Transport Agents causing my RegExCatchAll Agent to crash. I also…
Java Update 13 breaks Cisco SDM 2.5
By Howard | Published April 22nd, 2009Another post in a series designed to help Future-Howard work out why things have broken. If you install Java 6 Update 13 and then try and log into Cisco SDM 2.5 it will fail. The SDM console will not load. I found I had to go back to Java 6 Update 6 (available at the…
Bad Bell Wire!
By Howard | Published March 10th, 2009It’s one of those “why didn’t I think of that before?!” moments. BT are selling a device called the iPlate at the moment claiming that for 7 out of 10 people it will increase their DSL speed by filtering out the noise from the bell wire in your master socket. By all accounts it does…
Clearing a Cisco Router's Dynamic NAT Table
By Howard | Published December 1st, 2007I keep needing to do this – so once again to help my future self: When you have a number of public IPs being translated through a router to an internal address space, a router’s dynamic translation can get full. I’ve got an 877W, and it seems that a combination of running BitTorrent and a…
Nooo! Infrant ReadyNAS NV Death
By Howard | Published June 27th, 2007Noooo! One of my ReadyNAS devices died today. Based on the “hot component” smell and the fact that nothing lights up I’m hoping that it’s just the PSU/mainboard that fried, and that all my disks with their lovely XRAIDed data are intact. I’ve sent a trouble ticket to support, but since they’re now owned by…
m0n0wall and MS Virtual Server
By Howard | Published March 4th, 2006We recently had the need to simulate a routed environment with low bandwidth/high latency links between remote sites. To achieve this I used m0n0wall – a free software router – running inside Microsoft Virtual Server on multiple virtual NICs. Here’s how to get it up and running…
Things I Have Learned This Week
By Howard | Published February 17th, 2006Thing the first: Microsoft Virtual Server 2005 does not support teamed NICs on the host. This bit us on the arse earlier this week when we teamed the NICs on the hosts of our virtual environment. As a result, although we could RDP to the host desktop, all our guest machines dropped off the network….
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