Technical tips collected over several decades in IT

SSH to Unifi USG Public Key Rejected

Trying to login using SSH with a Public Key to USG and only get a password prompt Using latest version of MacOS and the following ssh version ssh -V OpenSSH_8.8p1, OpenSSL 1.1.1l 24 Aug 2021 Run the following to get more info ssh user@usg -vvv get a heap of output but...

Seeing if a Unifi UAP is sending ARP Requests

I'm not able to ping a wireless up-linked Unifi UAP-AC-HD device. It is marked as ISOLATED in the Unifi Controller. Strangely the Unifi Controller is reporting it was last seen 2 minutes ago but I think this is a furphy. If anyone knows if there is a back channel that...


This is a graphic I use to figure out which section to add the firewall rules to in the Unifi UDM/USG controller.


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