In preparation for my latest course in the AWS Networking Deep Dive series, I wanted to install PowerShell Core on an Amazon Linux instance to test out cross-platform compatibility for some scripts. Specifically, I wanted to see if I could use methods in the System.Net.Dns class to perform name resolution. The …

I know what you’re thinking. “Why use Visual Studio Code instead of the PowerShell ISE?” Well, if you’re using Mac OS or Linux, you don’t have the option to use the PowerShell ISE natively. And that’s a problem if you want to take advantage of the cross-platform capabilities of PowerShell Core. In this article, I’ll …

Recently I had an Oracle database server used by some developers that was running out of space on its data volume mounted at /u02. The volume was a simple MBR volume (think fdisk), so it couldn’t be non-destructively extended without using a third-party utility like gparted. That would have been fine, but rather than …

Recently I needed to build a multipurpose file server to host CIFS and NFS shares — CIFS for the Windows users, and NFS for VMWare to store ISOs. It needed to utilize back end storage (NetApp via iSCSI), provide Windows ACLs for the CIFS shares, and be able to authenticate against two different Active Directory …

If you are running XenServer 5.6 FP1 or later, there is a little trick you can use to improve network throughput on the host. By default, XenServer uses the netback process to process network traffic, and each host is limited to four instances of netback, with one instance running on each of dom0’s vCPUs. When a VM …