I had an issue with one of my VMWare hosts the other day where I learned a few things I thought that I would share here. In my case, the host became extremely sluggish which affected the virtual machines hosted…
If you have been around VMWare long, then you have cloned, restored or otherwise copied a virtual machine. When the copied virtual machine is created, it is given a different MAC address, which causes VMWare to see its network adapter…
Using Varnish Caching and Proxy If you have a website with lots of static objects like http://uptimemadeeasy.com, then it is likely that you can save some performance by caching those static objects in a memory so that when they are requested,…
I admit that in the past I have had some real frustrations granting permission users in PostgreSQL databases. I believe that much of this stemmed from the fact that up until Version 9, there was no way to manipulate the…
I tried something new the other day that ended up being pretty cool. We had been looking for a simple way to get video between two offices for our company meetings. At one point, I had looked at the enterprise…
The other day, we had an issue with one of our PostgreSQL databases where one of our applications wasn’t closing its unused connections. We tripled the max_connections and it used all of those up too. While I was monitoring the…
NMAP the Network Exploration Tool and Security / Port Scanner The “Network Mapper” or Nmap (the actual command) is an extremely useful tool for determining what is on your network, what ports UDP or TCP are open, what operating systems…