When I heard the news that McColo had been pulled I wondered if we’d actually see a drop in Hostile traffic and Spam.
Turns out that there has been a massive drop in Spam levels coming through some of the filters I have dotted around the place.
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We already know that disabling IPv6 on a 2008 & Exchange 2007 server breaks things but what if we go IPv6 only?
IPv6 Only Domain Controllers:
The installation didn’t cause any trouble but after initially logging on and running a DCDiag we see this:
It turns out that the install of the DNS Server had set the NIC’s [...]
Recently I encountered a situation where a vanilla install of Postfix had been targeted by what appeared to be a Spam Botnet. Bizarrely this server was what you could call an ‘Edge Server’ but it didn’t have any AntiVirus or AntiSpam to be honest it was pretty useless.
There were three issues to clear up. First [...]
In the previous post on this subject I mentioned that I’ve been working on a little project regarding the EdgeTransport.exe.config file. With the advent of PowerShell I decided to look into writing my own Cmdlets and the EdgeTransport file seemed like a good place to start.
To get started you’ll need to download the Cmdlet from [...]
Whilst there are a lot of features in Exchange 2007 that can be configured and tweaked using the GUI and Powershell I have on several occasions (bare in mind I work in Managed hosting so these occasions are not all for the same installation) needed to ‘play’ with the settings in EdgeTransport.exe.config file [which should [...]
Considering how bleeding edge the majority of my projects are I’m a little behind the curve on this one but I’ve finally managed to move all my Windows Servers across to Windows Server 2008. This includes the Domain Controllers, Web Servers and most critically the Exchange servers.
This post is going to be cut into the [...]
A few weeks ago I ‘inherited’ a frontend anti-spam solution that was getting crushed under the weight of the Christmas run-up. Emails were taking up to a week to arrive at the back-end system and a lot of spam was getting through too.
The solution consisted of two machines each with Dual Core 2.13Ghz Intel’s, 2Gb [...]
First thing in the morning I like to have a quick browse through the Logwatch output for all my servers (or at the very least the ones I know are critical / the ones that have been giving me trouble) and for the most part the data is always quite concise and extremely useful. However [...]