Category Archives: Firewall

SMTP Forwarding with dyn.com

Hosting my own Exchange server at home means finding a few online resources to make it all work – like a dynamic DNS service to keep my domain name pointed at my Comcast-issued IP address which changes every few days … Continue reading

Posted in Computing, Exchange, Firewall | Leave a comment

WatchGuard NAT

Client called me with an FTP issue on Monday.  His FTP server was blocking all traffic for security reasons. Turned out the Watchguard firewall (750e) dynamic NAT was relabeling traffic with the IP address of the firewall, so the FTP … Continue reading

Posted in Computing, Firewall, Security, Vendor rant | Tagged , , , , , , | Leave a comment