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To me, one of the biggest reasons to use sudo (as opposed to su) is to avoid the need to keep track of "the root password" for every server I administer, and change it every time someone who knows it leaves the company. Instead, it's just a matter of managing members of the wheel group, who can come and go without forcing each others' passwords to be ...


There are valid convenience uses for sudo, but because they are already adequately explained in other posts, I won't elaborate on them much here. I will however point you to sudoers(5), which is the sudo configuration file. It shows some of the extensive configuration possible with sudo. I will be explaining when and why you should not use sudo to elevate ...


Aside what's mentioned by the other users, sudo also keeps the original identity of the user that's executing the command. Meaning that you can track what userid performed the command. If you are using root in a multiuser environment, you will not be able to track the execution of a command to a single user as the uid will be 0.


Because sudo allows much finer-grained controls than "login as root then do whatever you want." For example you can configure sudo so that some users are only allowed to run certain commands (like wrapper scripts or "acceptable" binaries). You're concerned about a trojan horse compromising a single-user's computer, but sudo was created to allow logging and ...


The reason not to run as root is that by using sudo you're making a conscious decision to run one particular command as root. Running as root allows for a careless typo to ruin your day.

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