Linux: Prevent sudo from asking for password

The Linux sudo command elevates privilege to root for a single command. By default, sudo verifies user identity by asking for your password. If your environment is secure and you will be typing the sudo command often, you may want to disable this security feature. To do so, you will need to modify the /etc/sudoers file. This technique will reduce your Linux computer's security, so you may want to think twice before doing it. This is so important that there is a special command just for editing the sudoers file. The command is visudo Here are the steps:

1. sudo visudo
2. Change the lines that say:

   %admin ALL=(ALL) ALL
   %sudo ALL=(ALL:ALL) ALL
   

   to

   %sudo ALL=(ALL:ALL) ALL
   %adm ALL=(ALL) NOPASSWD:ALL
   

3. For fun, you can add this line to the bottom of the file. Defaults insults

This will take away the password requirement for all users in the adm group, so you will also need to make sure that you are also in the adm group. Alternatively, the line %sudo ALL=(ALL:ALL) ALL allows all users in the sudo group to use the sudo command. To allow non-password-prompting for sudo group members, change the line to %sudo ALL=(ALL:ALL) NOPASSWD:ALL More information on the sudoers file and its formatting can be found at:

• The main sudo manual pageAn explanation of sudoers syntax
• Digitalocean's sudoers guide