Linux Journal - samuelGreitzer/SYS255-tech-journal GitHub Wiki
useradd
passwd
usermod -aG wheel username
using ssh on a windows terminal will allow you to execute commands on a linux machine remotely
cd: navigate to a directory
cd ../: go up one directory
ls: list of files and directories in current directory
ls -la: list hidden files
sudo: grants temporary root access
sudo -i: grants root access until you don't need it, leave root with exit
pwd: Present working directory
mkdir: make a new directory
nmtui: pulls up a networking interface for checking and editing network properties like IP address and hostname
vi: text editor
firewall-cmd: the basic firewall prefix command
--reload: restarts the firewall, EXECUTE AFTER ALL CHANGES
--permanent: sets any changes to be permanent, instead of having to reconfigure on every boot
--add-port=/: add a port to allow traffic through the firewall
--remove-port=/: remove a port to stop traffic getting through
--query-port=/: ask the firewall if the port is open or not