Adding a SSL Certificate to Untangle Firewall
Untangle SSL not working? A small hack here for those that might be struggling adding a third party signed certificate to their Untangle firewall.
Karl NyenGuides
Step-by-step walkthroughs for CentOS, ESXi SNMP monitoring, Windows Server DHCP failover, Untangle SSL certificates and vSphere switch migrations.
11 posts2014-20196 comments
Photo: Olena Bohovyk on Unsplash
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Karl Nyen
Migration from Cisco 1000v to VMware Virtual Distributed Switch (Part 2)
This is part 2 of a series. Click here to see Part 1. I apologise for taking so long to get Part 2 posted. Sometimes I just don't have the time or effort I…
Karl Nyen1 comments
WHMCS - Is the promo applied or not?
WHMCS is one of the most popular billing systems for web hosting companies. Despite this fact there are many small caveats and grudges you will find with the…
Karl Nyen
Virtual Firewall and Networking - Planning Guide
This is a planning guide on how to create a robust, redundant, virtual network for your home-lab environment including a virtual firewall.
Karl Nyen
Home Labs: Remote Access and Security
I am sure that most who have a lab environment in their home also have a way of remotely accessing it - either from at work, with friends or family, vacation,…
Karl Nyen
Worried about Windows 10 privacy issues? Group/Local policy to the rescue!
I hear and see all over the Internet that people have privacy concerns about Windows 10 and for good reason. For any security concious person, like myself,…
Karl Nyen5 comments
Enable SNMP on ESXi 5.5
This is a quick guide on how to configure ESXi 5.5 hosts for SNMP monitoring. I use Observium to monitor and collect information about devices on my home…
Karl Nyen
CentOS nightly auto updates using yum-cron
It seems like new security vulnerabilities comes out at least once per month now a days. Keeping your systems up to date is the easiest way to keep these…
Karl Nyen
Windows Server 2012 R2 - DHCP High Availability / Fail-over Setup Guide (Part 2)
This build will required 2 x Windows 2012 R2 servers. They both must have the DHCP role installed in preparation for the DHCP fail over configuration.
Karl Nyen
Windows Server 2012 R2 - DHCP High Availability / Fail-over Setup Guide (Part 1)
First we must understand how DHCP works in Windows Server 2008 R2. DHCP met high availability requirements by hosting the DHCP service on a Windows Failover…
Karl Nyen
Change SSH Port in CentOS - Linux
This is just a quick guide on how to change the SSH port in CentOS. While there are many ways to make sure your server is as secure as possible there are some…
Karl Nyen