Category Archives: Firewall

Checking NSX DFW rules and rule sets

The new VMware Docs page has a cheatsheet of CLI commands¬†but here’s what you need to list the rules enforced on a VMs vnic. SSH to NSX Manager {Note that you can enable SSH if needed from the “Summary” page … Continue reading

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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

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