Tips for Python 3.

Reverse shells connect back from the victim to yourself with a shell.

STM32 Development on Linux.

Notes of several network tools on Linux.

Get more deep into Linux administration.

Linux command notes.

These are hard to remember.

SQLMap is a lazy tool for pentester to exploit databases.

GnuPG, OpenSSL, and some others.

Damn, so how do I unban my IP address?