[mapguide-users] Error: Session has expired or is invalid. Please log in again. Server Crash from Asia IP (EVERYDAY!)

2012-05-14 Thread Chris Gountanis
Could this be a sign of some kind of brute force or some kind of DoS attack? Anyone else have this issue with a public server? MapGuide 2.2 Open Source / IIS / Windows 2008. Please respond as we have a client that is about to drop MapGuide because of this and we don't have much of a solution yet.

Re: [mapguide-users] Error: Session has expired or is invalid. Please log in again. Server Crash from Asia IP (EVERYDAY!)

2012-05-14 Thread Gabriele Monfardini
Hi, On Mon, May 14, 2012 at 4:15 PM, Chris Gountanis cgounta...@mpowerinnovations.com wrote: Could this be a sign of some kind of brute force or some kind of DoS attack? Anyone else have this issue with a public server? MapGuide 2.2 Open Source / IIS / Windows 2008. Please respond as we have a

Re: [mapguide-users] Error: Session has expired or is invalid. Please log in again. Server Crash from Asia IP (EVERYDAY!)

2012-05-14 Thread Ryan Northcott
Yes, Asia IPs usually mean DOS attacks. I recommend you get a software firewall (eg. peerblock) on your server to monitor how many, and what frequency these Asian IPs are coming in. If you see requests coming in every 2-3 seconds, then you can be safe that your domain is on a list somewhere and