I made a Powershell script to automate the process of configuring all Windows regional settings like time, date, locale, culture, country, home location and language keyboard input. This script will also configure NTP and sync your clock. This is for stand-alone Workgroup computers. In a domain you are best of… Read More »Set correct Date, Time and NTP sync with this Powershell script
I have recently been doing some lab experiments with VMware vSphere. I’m running three ESXi hosts with vCenter Server Appliance on one of them. Out-of-the-box vCenter comes with a self-signed certificate, which means ignoring the SSL warning on every log-on. Instead, I wanted to implement a valid certificate from a… Read More »Replace vCenter Server Appliance certificate with valid SSL from a trusted PKI – How to
There are already some good write-ups on the internet explaining how to join Linux machines to your Active Directory domain using realmd, sssd and kerberos. But how do you make the Linux machines dynamically registering in Windows DNS with Secure Updates enabled? In a modern AD domain you would want… Read More »Windows DNS Secure Dynamic Updates with Linux – How?
There are some common misconceptions regarding DNS dynamic updates and DHCP servers. In this post I will share my knowledge about this and how to automatically update PTR-records with dynamic updates enabled. First off, what is DNS Dynamic Updates? Let’s get that out of the way right away: None: Dynamic update… Read More »DNS Secure Dynamic Updates and DHCP – How does it work and how to update PTR-records in DNS?
In my previous article I wrote a few words about the WPAD/LLMNR protocols and gave you an example of how to use wpad to set up an attack. Now, more importantly, here are a few tips on how to protect your network being vulnerable. Tip #1 – Turn off WPAD… Read More »The dangers of WPAD and LLMNR – Protect your network
There are already some great resources out there explaining vulnerabilities linked to the Web Proxy Auto-Discovery Protocol (WPAD) and Link-Local Multicast Name Resolution (LLMNR) protocol. In this post I will demonstrate an example using WPAD poisoning and Brute Force. Basically, WPAD is an auto-discovery protocol used by web browsers to… Read More »The dangers of WPAD and LLMNR – Poisoning attack