Create a fake TCP server
Open a throwaway TCP server with netcat and connect a client to it.
The notebook
Posts
Every article in the notebook, newest first.
All posts
Installing the latest CMake on Ubuntu
Install a recent CMake on Ubuntu from Snap or by building a release from source.
Changelog between two tags
Generate a changelog between two Git tags with git log and a custom pretty format.
CentOS: install a specific version of a package
List available versions with yum --showduplicates and install a specific package version on CentOS/RHEL.
Compute the length in bytes of a javascript string, when encoded in UTF8
Compute the UTF-8 byte length of a JavaScript string, which String.length does not give you.
Generate SSL certificat for localhost
Generate a self-signed TLS certificate and key for local development with openssl.
APT: fix broken package
Recover Debian/Ubuntu when apt reports that a package needs to be reinstalled but has no archive.
Dynamically create an image with the host's user/uid
Build a Docker image whose user matches the host UID and GID to avoid file ownership problems.
Run SFTP commands using Docker
Run SFTP transfers from an Alpine container with sshpass, without installing an SSH client on the host.
Run a GUI app on a Docker container
Run a graphical application inside a Docker container by sharing the host X11 socket and DISPLAY.