n Windows, I can hit Ctrl + Alt + Delete and kill apps or do other stuff. Sometimes Firefox browser hangs on macOS. Is there an equivalent of Ctrl + Alt + Delete keyboard shortcut to kill frozen apps on Apple macOS Sierra?
am a new Linux user. I wanted to find the text called “foo” and replaced to “bar” in the file named “hosts.txt.” How do I use the sed command to find and replace on Linux or UNIX-like system?
wanted to see if a specific port of a desktop computer or server is open from a Linux or Unix command line shell. How do I ping a specific port? Is it possible possible to ping an 192.168.1.254:80 or 192.168.1.254:23 ports?
am a new Linux user and for security reasons and to avoid ransomware, I would like to disable the SMB1 protocol in samba configuration on a CentOS Linux version 7 server. Is it possible to disable SMBv1 on a Linux or UNIX-like operating system?
ow can I extract or fetch a domain name from a URL string (e.g. https://www.cyberciti.biz/index.php) using bash shell scripting under Linux or Unix-like operating system?
ow do I install Gixy for Nginx configuration static analyzer on GNU/Linux operating system to to prevent security misconfiguration and automate flaw detection?
The vtop is a graphical activity monitor for the command line written in Node.js. How do I install vtop on my Linux server?