A lot of people like to use WordPress because of the ease of use. However when it comes to high traffic websites and the need for caching, every cookie, and header is important to ensure that pages properly cache. We Read more…
Working on a little Ethereum mining today. I’ve got a rig running two AMD Radeon RX 570 GPUs with 4GB of RAM each. I’m using Claymore Dual Miner for Ethereum, and when I gave it the arguments for target temperature Read more…
I’ve had times where I need to get a quick serial console going to a device like an APC PDU. I typically use minicom in the past but sometimes it’s just not available on the machine. I was on Read more…
I’ve been using pfSense on a Watchguard Firebox X750e or Dell R610 server, both of them have multiple OPT ports. So I wanted to bridge LAN and OPT1 ports together so I can have two machines on the same network, Read more…
Are you having a problem and don’t have a bootable CentOS DVD and no PIX server to get into rescue mode. Then try single user mode. In single user mode, your computer boots to runlevel 1. Your local file systems Read more…
I’ve had this issue a couple of times, when I attempt to ssh from our CentOS jump server to another CentOS server, I have had ssh hang and take up to 60 seconds or more before I get a bash Read more…
I’ve installed Xen dozens of times on CentOS 6, it’s a pretty straight forward process. You can follow the Xen Quickstart documentation. It goes something like this… Running the following commands: yum -y install centos-release-xen yum -y update yum -y Read more…
Okay this isn’t the normal CentOS questions, but I figured it’s appropriate. If you’re a system administrator like me, you’ll need up need to work on a switch or two. I’ve got a number of Juniper EX4200 and EX4400 switches Read more…
When booting on a default installation of CentOS 7, after the grub boot loading menu displays the screen refreshes into a progress bar during the boot process. I’m used to seeing the detailed kernel output during the boot process to Read more…
WordPress websites are very common and so are people trying to hack them. The XML-RPC attack where a hacker is constantly doing POST requests to xmlrpc.php is a common problem. Every time I see this happening to a client, their Read more…