SysAdmin articles

135 posts

SysAdmin

Failed to create temporary file: /var/lib/mod_security/20xx

27 October 2023·1 min read

Today, the developer reported that the he is not able to upload some files. As we checked, we were getting the following error on mod_security log. It looks like apache is getting denied while...

Read article →
SysAdmin

phpmyadmin gives Function get_magic_quotes_gpc() is deprecated

29 March 2021·1 min read

Hello Folks, Today I was installing PHPMyAdmin and I was getting the below error while accessing http://IP/phpmyadmin page. The error was repeating even after logging in. I have gone through the...

Read article →
SysAdmin

How to Install RHEL 8 | RHEL latest Version | RHEL 8 Hello World

16 May 2019·1 min read

RHEL was recently released, it has a lot of new features and cockpit software for managing the OS is coming by default with the Operating System. To download RHEL, you need a Red Hat login and valid...

Read article →
SysAdmin

How to migrate a KVM / Virtualbox VM to VMware

27 October 2018·2 min readArchive

Today, we had to migrate a virtialbox VM to VMware, and i had to deal with a lot of issues. Hence i thought about documenting it here since it may help someone. Convert QCOW2 to VMDK If you are...

Read article →
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....

Read article →
SysAdmin

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...

Read article →
SysAdmin

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...

Read article →
SysAdmin

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...

Read article →
SysAdmin

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...

Read article →
SysAdmin

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

Read article →
SysAdmin

SSH or git-clone via Proxy

28 June 2017·1 min readArchive

Today we were setting up few Web servers on a private network which will be serving the traffic through the Load Balancer. The setup was simple until we came to know that the Webservers needs to...

Read article →
SysAdmin

IPA registration error – libcurl failed to execute the HTTP POST transaction. SSL connect error

7 June 2017·1 min readArchive

Today we were trying to join RHEL-6 clients to our new IPA server. Most of the servers got registered and very few RHEL6 systems were failing to join. We ran the ipa-client-install with -d option for...

Read article →

Reading this because your AWS bill or uptime is a problem?

30 minutes, direct with the founder, no sales pitch: one specific recommendation for your AWS workload.

Book a free 30-minute review
30 min Free Consultation →