Archive for June 2021

SpamHaus is a well known service that keeps a curated downloadable list of Internet offenders. to see a link to the list https://www.spamhaus.org/drop/ You can see the DROP list and…

Ubiquiti makes switching hardware that is inexpensive and easy to manage. They also have a cloud service that makes switching and Wifi hardware manageable from anywhere connected to the internet….

FYI: an OpenVAS scan will reboot every Polycom VVX350 deskphone, and if a workstation is connected to the network through that phone the workstaion will lose connectivity, while the phone…

Level 1: Free / easy / 1 hour fixes-Block China, Russia, Ukraine on your firewall and email-Turn on email banner for external emails-make sure PCs are running a version of…

Port security watches for multiple MAC addresses on a port and if it detects >1 it disables the port. Pros:+If a user tries running responder, the port gets disabled+If a…

Ubuntu 18+ and a number of other modern distros using Polkit have a vuln that allows privilege escalation to root.a video by the bug’s discoverer shows it’s not that hard…