I run a Debian-based software router on my home network. It’s connected to multiple ISPs, so I have some policy routing rules to balance the traffic between them. Some time ago, I noticed that the ...
I moved my soft router (Intel N5105, Debian) from school to home, and at home it’s behind an ONU on bridge mode, so it’ll have to do PPPoE itself.
Today I stumbled upon this V2EX post (Simplified Chinese) where the OP shared their PowerShell implementation of a “makeshift fail2ban” for RDP (their GitHub repository). Their script looked very c...
A few days back when I was setting up a new VM to host some extra websites, I noticed an unexpected Nginx error page. As I don’t administer the new websites, I just added reverse proxy rules on the...
Public Wi-Fi and some campus network typically block traffic from unauthenticated clients, but more often allow traffic targeting UDP port 53 to pass through, which is normally used for DNS queries...
Back in the days when the Zero COVID policy was prevailing, our university introduced a Daily Health Report system. Students and faculty were mandated to submit a daily online form detailing their ...
Linux has a built-in framework for Internet Protocol Security (IPsec), which is often combined with other tunneling technologies (e.g. L2TP and GRE) to create secure cross-site network connections....
Today when I was running some networking diagnostics from an Ubuntu inside VMware Workstation, I noticed this strange result from mtr (My Traceroute):
