I have a MS Small Business Server setup with standard best practices for a 2 NIC system. Nothing fancy, and almost everything is working fine.
The network uses a Linksys SRW2016 switch and a RV016 router.
PCs connecting to the network access internal and external HTTP/HTTPS traffic just fine but something is blocking all FTP and all external http://mail.domainname.com
requests from going out.
I turned off my router’s firewall, but that wasn’t the problem, it’s got to be something in SBS. I’m not running ISA server on it.
It’s nothing on the PC configuration either. A mobile PC can access these services just fine, but as soon as it connects to the MS VPN and gets an IP from the SBS server, it looses these connections.
Is it DNS or some sort of SBS firewall?
I know NOTHING about MS DNS, so if that’s the problem, please be specific.
This probably isn’t a really tough question but walking me through it may be so I posted it with high points!