A step-by-step guide to installing and setup Sedy on Ubuntu 18.x Why spend hundreds of dollars per month when you can send more than 100,000 emails in around $25 per? As you can see if you …
Troubleshooting: CentOS 7 – netstat command not found
Lately, I was installing Nginx Plus on CentOS 7 and wanted to verify if it's listening on port 80 using netstat or not. Guess what? I got the below error while executing netstat. [[email protected] …
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16 Linux Books and Videos for System Administrator
Having knowledge of Linux is essential for any system administration, middleware, web engineer job. Linux is used almost everywhere in production or a non-production environment. There are …
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How to Secure and Harden Cloud/VPS VM (Ubuntu/CentOS)?
Securing OS is as important as your website, web applications, online business. You may be spending on security plugin, WAF, cloud-based security to protect your site (Layer 7) but leaving OS …
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How to Boot CentOS 7 in GUI Mode (Desktop Environment)
Lately, I installed CentOS 7 in VMWare, and it was all good until it booted in CLI (Command Line Interface) mode. I tried startx command but no help. It looks like Desktop Environment was not …
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14 FREE Operating System for Penetration Testing & Digital Forensics
Want to see yourself as Penetration Tester, IT Security Expert? There are thousands of standalone software & tools for ethical hacking, penetration testing, forensic investigation and it can be a …
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Ultimate list of Cheat Sheet for System Administrator
It’s not possible to remember everything you read and especially the one you are not going to use them frequently. That’s why we have bookmarked so you can refer whenever needed. Working in IT, one …
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11 Linux Performance Commands to Know as a System Administrator
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 …
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How to Fix virtualenv: command not found on CentOS 6
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 …
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How to auto-restart services when down?
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 …
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