This is simply for my personal reference since I spent a lot of time figuring out how to do this simple thing I have some RHEL 8.3 servers which I need to have security patches, but it should not upgrade to 8.4. This runs on AWS EC2 instances, and it does not have a subscription […]
Tag: Linux
Rename Windows and Linux EC2 instances based on tag
If you need to rename your EC2 instances based on the tags set, you can use the below code snippets. This can be particularly useful if you use a hardened AMI with a name already set in. To apply them, you can just use a cron job or a Task Scheduler job, or even cloudwatch […]
TIL how to check the bandwidth between 2 servers
We subscribed for a dedicated line between 2 datacenters, and when we were trying to copy some files over, it was really slow. We were supposed to get few MB/s transfer rate, but were getting only 20KB/s which was unacceptable. We needed to make a clear case with the service provider to get their support […]
How I recovered an unbootable Linux server hosted in OVH/SoYouStart
My friend has a server hosted in SoYouStart, and suddenly the server went down and nobody knew why. He asked my helped to bring it back online. We tried to boot into recovery mode from the console, and we were able to login using the credentials sent by them. We were also able to download […]
My experience with RHCE and RHCSA exams
In one word, I can say the following: RHCSA – Easy RHCE – Doable Although I have been using desktop linux , particularly Ubuntu for a while, I never had a chance to do proper system administration. So in a way, I was a fresher. One advantage I had was that I had some domain […]
How to use your Raspberry pi to download movies automatically
DISCLAIMER: This is for educational purposes only. Do everything at your own risk. Using bit torrent is not illegal, but downloading copyrighted materials are. Do not use this in a production environment. We are considering zero security in this case. EDIT: I see that this post gets a lot of attention. If this works/doesn’t work […]