Tech blog
In Windows 2003, the local firewall was turned off by default. You could enable it, but you had to be careful about defining all your exceptions; unlike a PC running Windows XP, you presumably want people to be able to connect to your server! Finding a list of all the relevant ports/protocols could be difficult, …
Continue reading “Exchange 2007 – firewall problems on Windows 2008”
I was going through the log files on my firewall server today when I saw something odd: my PC was trying to send outbound traffic on port 6667 every 30 seconds. At first I thought that this was for my IRC client, but it wasn’t. Instead, it’s a legacy of the “Sky by Broadband” service …
One of my current projects is configuring ISA 2004 as a firewall. Without wanting to get sidetracked into advocacy debates, all I’ll say is that: a) It’s a lot better than ISA 2000. b) It’s annoying that it doesn’t support more than one internet connection, so hopefully they’ll fix that in ISA 2006. Anyway, today …