SSH diffie-hellman-group1 Workaround

At my job I work with a mix of old and new wireless equipment. Some of the old stuff, such as Ubiquiti Nanostation2s, may not automatically let you ssh into them from newer workstations due these old devices using old / weak / outdated encryption algorithms, which newer operating systems tend to disable by default. If you’ve run into this, you’ll probably see a message along these lines:

Continue reading “SSH diffie-hellman-group1 Workaround”

MAC Address Vendor Lookup

I find myself looking up mac addresses semi-regularly, trying to find the vendor behind a device connected to our equipment at a customer’s house, or looking through logs and trying to identify devices attempting to connect to our wireless APs. I tend to default to using the MAC / OUI Lookup tool at aruljohn.com, but after a few failed attempts, I started looking for source lists after noticing they may not keep their database updated.

Continue reading “MAC Address Vendor Lookup”

Fix My WiFi: Router Placement

Your router’s placement within your home can make a night and day difference in how your WiFi performs, and thus your experience with your internet service. As someone who has seen, first-hand, router placement within hundreds of homes, I can say that far too many people are creating their own unnecessary WiFi problems.

Continue reading “Fix My WiFi: Router Placement”