1+ day, 9+ hour ago   (1454+ words) Two states get mixed up constantly. Listening means a local process is waiting for connections on an address and port. Established means a connection is active between two endpoints. When you hunt for open ports you want the listening set,…...

1+ day, 13+ hour ago   (975+ words) You run ls, see old_project, and you want it to be new_project without touching the files inside. Linux has no standalone rename step for directories, so you reuse the move operation with a new name, which means a single mv call does…...

1+ day, 16+ hour ago   (790+ words) sshoot is used, along with sshuttle, to manage multiple sshuttle VPN sessions through the command line interface. sshuttle allows us to create a VPN connection from your machine to any remote server that you can connect to via ssh, as…...

1+ day, 16+ hour ago   (848+ words) You run rmdir on a folder you just created and it works, then you run the same command on a folder with a single file inside and get Directory not empty. That split is the whole design of directory removal…...

1+ day, 22+ hour ago   (1951+ words) Any text file on a Linux system is an ordinary file you can open and change, whether it holds a hosts entry, an Nginx server block, or a shell script. Typing the new text is easy, and the key that…...

1+ day, 17+ hour ago   (1413+ words) It takes just a few commands to find the user group of a user in Linux. If you already know the basics about user groups, you can jump right to the headings that refer to the commands. Four tools report…...

1+ day, 16+ hour ago   (1526+ words) Listing all groups on a Linux system is one command, and there are two common ways: reading /etc/group or asking the system with getent. They can return different answers on a machine that uses a directory service. Every group…...

2+ day, 18+ hour ago   (759+ words) I tested the group-based and file-based ways to add a user to sudoers on a current Debian-family system, including syntax validation with visudo and permission checks with sudo -l. Use the sudo group for a normal administrator, and use a sudoers....

2+ day, 19+ hour ago   (592+ words) I ran touch empty.txt and stat reported empty.txt as 0 bytes, then checked writes, appends, standard input, and editor-based creation. Choose the method by the result you need: a blank file, controlled text, typed input, or an interactive editing…...