Configure sudo permissions on Linux for the first time

What is sudo permission, online is a lot of

Mainly because the root authority is too large, afraid of the wrong operation, so sudo permissions appear, of course, I personally see the online documentation is said

Configuration environment: Centos7

First log in to the system with root privileges

Then configure the sudoers file under the ETC directory

Then first give the sudoers file, write the permission, chmod o+w/etc/sudoers

Why write permission, because there is no permission to write, and so on can not save, tell the novice listen to, the great God skipped

And then we use VI to open the sudoers file.

We'll find it when we open it.

Root all= (All) all

This line

And then add the following under it

"User name" all= (All) all

That's probably it.

OK, then we're under permission, chmod o-w sudores.

Why do you want to under permission, because no permissions, wait for sudo, there will be an error

Let's test it out for ourselves.

Configure sudo permissions on Linux for the first time