Stuff I'm Up To

Recent Posts

• LINPEAS, PEASS

  Updated:21 Apr, 2023

  How to get an elevated privileged shell the easy way. https://github.com/carlospolop/PEASS-ng

• Fail2ban with Gitea

  Updated:21 Apr, 2023

  I noticed a bot had decided to target our Gitea service, so thought of putting it into fail2ban to lock it down. Turned out this wasn't as straight forward

• Great Free and Open Source Software

  Updated:30 Mar, 2023

  Over time I've encountered some great pieces of Free and Open Source Software. I just wanted to list a few noteworthy products in a single place I can refe

• SSSD and SUDOers

  Updated:9 Mar, 2023

  All our remote users are using LDAP cached credentials using SSSD. This works really well for users that transition online to offline, with one failing. Wh

• IP Address RegEx

  24 Feb, 2023

  Searching for IP addresses in a file or files: grep -oE '((1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])' file

• iptables - Part 1

  Updated:23 Feb, 2023

  My understanding of iptables is rudimentary, and I thought it's time to improve on it. I have an understanding of firewalls, NAT and packet filtering, but

• ldapsearch and base64 decoding

  Updated:21 Feb, 2023

  I recently had to do an ldapsearch / ldbsearch that returned some base64 encoded results. $ sudo ldbsearch -H /var/lib/sss/db/cache_LDAP.ldb '(&(objectClas

• Extracting Graphs from Grafana

  Updated:15 Feb, 2023

  The Grafana dashboards are a really nice interactive display of metrics. What we want to do is take those graphs from a dashboard and share them on a stati

• Systemd Hardening

  9 Feb, 2023

  https://docs.arbitrary.ch/security/systemd.html

• Ventoy - One Stick to Boot them All

  Updated:31 Jan, 2023

  I regularly end up writing a bootable USB to start a different version of Linux or different distro. Then I came across Ventoy . Once a USB stick is instal