Security

We covered SSH Authentication and Linux user management using OpenLDAP in an article, now wouldn’t it be great if you could also manage sudo rules from a central place like an LDAP server? Luckily, sudo has support for this! This article will show you how to set this up within OpenLDAP and the sudo configuration on your Linux machine.

A GPG Keysigning party is an event where people verify each other’s identity and sign their GPG keys. Doing so increases the effectiveness of the Web of trust and the total trust each key has.

BGP stands for Border Gateway Protocol, more commonly known as the system that keeps the internet (and by definition, routing) working correctly. Sometimes misconfigurations (Like accidentally announcing a wrong prefix) can break the internet. In this blog post, I will explain BGP Hijacking and how to prevent it. Primarily for people without network experience.

This document will get you step by step through the generation of a GPG smartcard key, with the correct subkeys for use on a smartcard like OpenPGP smartcard or the Yubikey. This will also allow you to use your GPG Authentication subkey for SSH support.

So you got an OpenLDAP server running? Great! Now you want to connect it to as many systems as possible to ease the burden of managing users and authorization. However, you also want to allow SSH key authorisation managed via a central place. Can LDAP be used for this? This article will help you get started to set this up in your organisation.