A surprise I found out recently is that Bash natively supports tcp connections as file descriptors. To use: exec 6<>/dev/tcp/ip.addr.of.server/445 echo -e ... ... <看更多>

In this video i will show you how to check open and listening ports on Ubuntu 22.04 or Linux. To troubleshoot network or system problems and ... ... <看更多>

First something has to bind to your port, it means something has to use such port, like httpd (usually) uses 80 or 443. ... <看更多>

By the end, we'll be able to open a listener on port 8080 (any port would do) without it showing up in things like netstat . Assuming that a ... ... <看更多>