Trying to debug that Linux issue or need help installing it on another system? This is the right place for that and other Linux-related tips.
Knowing 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 thousands of articles, books, video training to explore and learn, but that would be time-consuming. Instead, you can follow one or two related books or online training. The following learning…
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 unhardened can be dangerous. The trend is changing. The Web is moving to Cloud from shared hosting for multiple advantages. Faster response time as…
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 installed for some reason. If you are in the same situation then here is how you can install the necessary…
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 burden to maintain and keep a track on standard OS like Linux, Windows or MAC OS. If you are practicing ethical hacking, then you would…
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 thing you can’t ignore is to cheat sheet/reference guide. Having a relevant cheat sheet in your bookmark can help to…
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 production environment then most probably you will need to deal with performance related issues in Linux environment. Are you in support…
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 virtual environment… ./letsencrypt-auto: line 455: virtualenv: command not found It was on CentOS 6.7 hosted with DigitalOcean and this is how I fixed. Ensure you have root privilege…
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 time. However, one thing you can do it immediately to reduce the downtime for better availability is to automate restart of…
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 engineer. Tools are categorized as following:- Information Gathering Sniffing & Spoofing Vulnerability Analysis Exploitation Tools Password Attacks Wireless Attacks Forensic Tools Maintaining Access Hardware Hacking…
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 when you install php-fpm, you will get 5.3 by default, which is considered high risk as an unsupported version. If you are still…
