AWS news analysis and DevOps guides.

AWS news analysis and DevOps guides from the engineers who run production AWS for regulated teams. The Linux and sysadmin archive goes back to 2009.

API

How to add a new check in Uptimerobot via API

12 September 2018·1 min readArchive

Today I was thinking to automate the new addition of website check to our monitoring systems. Since we are using multiple providers for website monitoring, it is a headache to go to each portal and...

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SysAdmin

Ansible Playbook – How to pass hostname or IP in the Command line

3 September 2018·1 min readArchive

Today I was thinking about passing the host IP on the ansible-playbook I’m going to run to automate something. As per the documentation, it says –i hostname in a comma separated input will work fine....

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CentOS

How to exclude virtfs or any Mount Point from Zabbix Filesystem Discovery

23 April 2018·1 min readArchive

I was configuring Zabbix for our cPanel servers. A few years back I had configured Zabbix with Manual mount points. But this time, I want to use the File System Discovery to make the setup easier for...

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Ubuntu

The NTFS partition is in an unsafe state. Please resume and shutdown

1 April 2018·1 min readArchive

Today I ran into an issue on my Ubuntu box. I had an NTFS partition mounted via /etc/fstab . I had booted my PC into Windows for some reason and booted back to the Ubuntu and the system got stuck in...

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AWS

AWS Autoscaling is not working. Seems stuck

19 February 2018·1 min readArchive

Issue Today I was working on a modifying autoscaling group and playing with some options in suspended action. After testing the things, I found that the new instances were not launching even if I...

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AWS

WordPress White page error – Call to undefined function imagecreatefromstring

12 February 2018·1 min readArchive

If you ever get a white page on your WordPress, the best way to troubleshoot is to check the apache error log first. It will have enough information about the issue happening now. In my case, the...

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CentOS

How to Install RedMine on CentOS 7

29 January 2018·3 min readArchive

Install Software Collections yum -y install yum-plugin-priorities Add [priority=1] to official repository sed -i -e “s/\]$/\]\npriority=1/g” /etc/yum.repos.d/CentOS-Base.repo yum -y install...

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RHEL

Ubuntu Vs RHEL CentOS

21 January 2018·1 min readArchive

Ubuntu Made for Home, SMB and Development use. Ubuntu is derived from Debian, you can enjoy new version and features of software packages but a high chance for bugs and security issues. Security...

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CentOS

CentOS RHEL – reboot after kernel update or if reboot needed

5 December 2017·1 min readArchive

Yum-Cron Yum-cron is used to update the server automatically. This service will update the server with all the packages or only the security patches as configured on /etc/yum/yum-cron.conf But, the...

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Hot News

Amazon’s AWS is Now Hosting the Defense Department’s Most Classified Data

16 September 2017·1 min readArchive

Amazon.com’s AMZN cloud computing division Amazon Web Services (AWS) is one of the company’s most profitable arms, and it recently gained a new customer: the U.S. Department of Defense. Earlier this...

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CentOS

IPA wait_for_open_ports: localhost [8080, 8443] timeout 300

13 September 2017·1 min readArchive

Issue: IPA wait_for_open_ports: localhost [8080, 8443] timeout 300 Today we were updating the server with yum update on our IPA server. The yum update finished successfully, but the IPA was not...

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AWS

How to Install WordPress on an AWS EC2 Instance in just 10 Minutes

20 August 2017·1 min readArchive

In this video, we talk about creating a new EC2 instance on AWS with a fresh WordPress installation in just 10 minutes. https://www.youtube.com/watch?v=p9oU7_w7RAA

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