cloud engineer
Here are the commands to start, stop, enable and get the status of Apache on RHEL and CentOS.
systemctl enable httpd # enable on bootup systemctl status httpd # get status systemctl start httpd # start systemctl stop httpd # stop systemctl restart httpd # restart |
If you have an existing EFS that’s unencrypted, you can encrypt it be creating a snapshot using AWS Backup, and then restoring the file system to a new EFS with encryption. If you choose to restore in a directory in the same file system, it will not be encrypted. It has to be a new EFS. In addition, you’ll be asked to select which encryption key to use. The default key will work, unless you have your own.
Here’s how to add an existing user to a user group in Linux.
usermod -a -G groupname username usermod -a -G www-data john |
List all users belonging to a group.
lid -g www-data |
List all the groups the user belongs to.
groups john |