Introduction In a shocking revelation, it has been disclosed that the infrastructure used to maintain and distribute the Linux operating system kernel was compromised for two years by sophisticated malware. This critical breach, involving the Ebury backdoor, has had far-reaching implications for Linux security. This article delves into the details of the attack, its impact, and the lessons learned. The […]
Netcat is a tiny tool for linux and windows and it is used for reading and writing data across network connections using TCP or UDP. It has amazing features and it is a must-have tool for pen-testing. It is called the “Swiss-army knife for TCP/IP”. Netcat is a terminal application with many features. Apart from basic telnet functions, it can […]
PortMapper service runs in port TCP and UDP 111 and provides RPC (Remote Procedure Calls) like NFS mounts. Portmapper service that can be accessed from the Internet can be exploited by an attacker to perform DDoS attacks. An attacker can gain information about your network, e.g. existing network shares or running RPC services. RPC stands for remote procedure call. To […]
When working on the terminal either locally or via ssh, many times it is needed to open an additional terminal while a process is already running on the first one. For example, you are downloading a huge file and it needs 40mins or more to finish and you want to do something else on a new terminal while you are […]
Free SSL certificate for your website from trusted CA Until recently in order to get a SSL certificate from a trusted CA you had to pay a minimum of 50$ per year . Sometimes the price could be more than 1000USD per year. Try a google search for “buy SSL Certificate” Good news! You can get certificates from a trusted […]
How to enable SSL on your Centos webserver! Follow the steps bellow to create a new secure certificate for your website and enable https: Centos 6.5 First step is to check which modules are being used by apache2 apachectl -M | grep ssl If module: ssl_module (shared) is loaded then we skip to step 3. If it is not loaded then we […]
Here are some linux commands that can kill your computer! Don’t try them if you don’t know what you are doing: 1. Delete Everything Recursively! rm -rf / 2.Send commands to Hard disk any-command > /dev/sda 3. Format H.D. mkfs.ext3 /dev/sda 4. Move everything to null mv ~ /dev/null 5. Fork Bomb! Once run this command it acts like a virus […]
Check out this linux command to see the weather forecast for any city around the world on the terminal window! curl -4 http://wttr.in/london *you can change london with any city 🙂