On and off writing on Linux and the greater POSIX OS family over two decades.

Below is a shortlist of my more popular recent titles:

NFS encryption with stunnel TLS

(NFS technique mentioned in https://tools.ietf.org/html/draft-ietf-nfsv4-rpc-tls-08)

ZFS for Linux

Linux filesystem events with inotify

smbclient security

Infinite Busybox with systemd

Authored Content

Parts, modules, containers for software

State-of-the-art crypto goes post-quantum

The TinySSH server aims to eliminate post-quantum cryptography weaknesses.
Charles Fisher 21 Jul 2020

Authored Comments

Commented on 8 Jan 2020
5 ways to improve your Bash scripts
Users learning Bourne-family shell scripting need to understand the history. The POSIX shell has it's own standard, and is a much smaller language than provided by bash. This shell is relevant when using Debian dash, and...
Commented on 6 Jan 2020
What's your favorite terminal emulator?
For normal work on Windows, I prefer gnome-terminal (which implements VTE). This is far superior to putty as it has tabs, and the color rendition is better. I am also easily able to install Cygwin/X on my home PC, then ZIP...