Another 'unique' issue with TMG. After a somewhat successful migration from ISA 2004 SP3, TMG seems to lock itself down without notice. I can replicate the issue if from my client, I download any .torrent file. I'm not sure if it's P2P clients all together,
or just .torrent, but the server must then rebooted to restore functionality. To ensure it wasn't something affected from the migration, I've gone through and created each rule on a clean 2008 R2 box with TMG 2010 Sp1, Update 1 Rollup 3. On 3 separate occasions,
I've noticed Event ID15009 - SYN Attack on or around the time of the failure. How can I get TMG to stop locking itself down?
jev
jev