Hey there, I’m Lester. I work with server systems and spend probably too much time messing around in my homelab. This is where I dump the random stuff I learn, break, fix, and occasionally figure out. Mostly Linux, security, DevOps, and whatever else catches my attention. Hopefully something here is useful to you too!

Recent Posts

Setting up 389 Directory Server

This is the first part of a series where I will share how I set up my local LDAP server that I use in my homelab, mainly for security testing.

CVE-2021-44228 log4j2 exploit PoC

This week has been busy in the world of cybersecurity because of a vulnerability found in log4j2, a popular Java logging library, nicknamed “Log4Shell”.

zh3r0 CTF - sParta Web Challenge

TL;DR: The challenge had an archive file which contained the source code for a NodeJS application and a Dockerfile. Running docker build invokes npm commands...