Geekflare
Technology Blog, Web Tools and Resources to Supercharge Site and Business
Become a better Sysadmin by learning Linux. Most of the articles cover essential commands, how-to, books, and troubleshooting.
A troubleshooting performance related issue in IT world is always challenging, and if you were not aware of right tools, then it would be frustrating. If you are working as a support in a …
Continue Reading about 11 Linux Performance Commands to Know as a System Administrator →
Lately, I was working on securing one of the website’s through Let’s Encrypt and during I encountered the following error while running "./letsencrypt-auto" Checking for new version... Creating …
Continue Reading about How to Fix virtualenv: command not found on CentOS 6 →
Shell Script to Restart the Services if Down/Crashed It’s common for the process to crash/go down due to various reasons, which you can investigate and fix the issues but that may take a little …
Continue Reading about How to auto-restart services when down? →
Kali Linux 2.0 was released on 11th August 2015 and comes with more than 600 preinstalled penetration/security tools. Having these preinstalled makes Kali Linux a true platform for the security …
Continue Reading about Kali Linux Installation Guide on VMWare Fusion [With Screenshot] →
Lately, I moved Geek Flare from Shared Hosting to DigitalOcean on CentOS 6.6, and it was all ok till I received “High-risk vulnerabilities” detected alert from Scan My Server. In CentOS 6.x …
Continue Reading about How to install/upgrade PHP-FPM 5.6 on CentOS 6.x →
One of the challenging tasks while working in project team is to perform necessary connectivity test though services don't exist. This is often you have to do when you are working in DMZ environment …
Crontab (Cron Table) is system administrator’s favorite job scheduler. Using cron, you can schedule a job to run on specific time/date. This is very handy for the administrator as at some point you …
Continue Reading about Crontab in Linux – with real time examples and tools →
The find command is one of the most widely used in Linux OS. It would be just difficult to administer Linux environment without knowing find commands. It helps you to search files, folders on Linux …
Continue Reading about Useful Linux find Commands for System Administrator →
Middleware was fourth hottest skills to get hired in 2017, and there is no reason to go down in coming years. If you recently started working on WebSphere or any other product suite of Middleware, …
Continue Reading about Linux Commands for Middleware/WebSphere Administration →
Lately, I was trying to install Apache web server in Linux environment and got the following error. [[email protected] ~]# yum install httpd Loaded plugins: fastestmirror, langpacks Could not retrieve …
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