James J
Sysadmin/Engineer/Developer
Linux
» linux
Sysadmin/Engineer/Developer
» linux
Description Setup Tang server. Setup Clevis client Install Clevis Conclusion / Demo. Extra - Delete the tang server association ...
Description Remove old versions Add repository Install the specific version Add machine learning repository Conclusion Description Newer software is...
Description Directory Structure Customization Build Pre/Post Install (Optional) Conclusion Description If you have worked with Linux for any length...
Description Partition Add a partition Tag the partition LVM Add PV to VG Create a new Logical Volume(LV) Extend an...
Intro Dependencies kernel source Work around Install kpatch Make some changes Building the kernel patch Changes Building Test Intro...
Image Builder - Configuration aka Blueprints Lets start with basic configuration manipulation. Blueprint uses .toml files with a git-like...
Enabling TLS/SSL for Syslog-NG in CentOS6 The default CentOS6 syslog-ng is not built with ssl/tls support. So, we have to...
Automation seems to be the mantra of DevOps. One of the challenges that comes along with Automation, is the...
Docker: Basics Docker is the underlying technology in the containerization craze sweeping our industry. Should you need multiple...
How to install Google Cloud SDK in CentOS6 without breaking things The long and short of it is...
You don’t know GIT!? Currently GIT is a relatively common tool for anyone working in the industry. For those of...
Install the Chef Development Kit I am using CentOS 7. Grab the package appropriate for you from here [root@testbox...
Overview A friend of my wife recently lost her husband to a rare form of Cancer. From diagnosis...
What do we want to containerize This can be done with whatever binary you choose. You will just...
Overview Often we find ourselves in a situation where we have to share a password. But how do you...
CentOS 6: Upgrade GCC to 5.3.1 Install CentOS SCL repo. yum -y install centos-release-scl Install the actual...
Entropy When the topic of /dev/random and /dev/urandom come up, you always hear this word: “Entropy”. Everyone seems to...
Being a good sysadmin, you should comb through your logs periodically… Even better, get a log analyzer. With that...
Strace is one of those tools that can be quite intimidating. But if you dont know how to use...
While working on some issues with performance, we needed a bit more granularity than the 10 minute default that...
Set the stage: Recently while deploying an OVA that I had deployed many times before, I came across this error....
This is not intended to be an extensive guide to building rpms. Although, if there is interest, that can be...
I have an old drive with existing LVM data. The drive is plugged in as /dev/sdb. [root@bt ~]# fdisk -l...
Recently I have been watching my log files a lot more closely. While doing so, I noticed A LOT...
Working in the industry, at one time or another, you will have to transfer files. Im sure it will be...
So this used to happen a lot but since yum, not so much Like an impatient admin, I got tired...