How secure is sudo?

sudo is as secure, or insecure, as its popular alternatives like su . The most popular alternative to sudo is to allow some or all users to elevate their privileges with su . Most commonly, all users are permitted to do so, so long as they know the target user’s password.

Is sudo unsafe?

It seems like allowing sudo su – poses a security risk by making access to the root account dependent upon individual user passwords. Of course, this might be mitigated by enforcing a strict password policy.

Is sudo useless?

Sudo provides access control for root access, it’s definitely not useless. Sudo allows for logging and locking of root actions. Those settings can be configured irresponsibly and lead to compromise for sure, but the main purpose is creating a sense of order to who can access what protected resources.

What exactly is sudo?

Sudo, the one command to rule them all. It stands for “super user do!” Pronounced like “sue dough” As a Linux system administrator or power user, it’s one of the most important commands in your arsenal. It is much better than logging in as root, or using the su “switch user” command.

What is purpose of sudo?

The sudo command allows you to run programs with the security privileges of another user (by default, as the superuser). It prompts you for your personal password and confirms your request to execute a command by checking a file, called sudoers , which the system administrator configures.

Is sudo safer than su?

There is nothing about either su or sudo that prevents you running malicious code as long as you know the password. Neither is safer or better. Crackers can obtain shell access via a number of methods.

Why is sudo encouraged?

sudo is often recommended because it allows you fine grain and audit the use of such privileges. By observing these practices you are also in a position to disable remote root logins.

How do I stop needing sudo?

Just use sudo su to login as root from a user in the sudo group. If you want to disable this, you have to set a root passwd, then remove the other user from the sudo group. This will require you to su – root to login as root whenever root privileges are needed.

Which security goals does sudo help an administrator achieve?

sudo has a specific purpose: It allows authorized users to escalate their current privileges in a controlled way. The practical impact of that depends on how you are using privileges in your system. Typically, users don’t use privileges to silo their data, so sudo doesn’t protect that data.

What is the purpose of sudo in Ubuntu?

Sudo (superuser do) is a utility for UNIX- and Linux-based systems that provides an efficient way to give specific users permission to use specific system commands at the root (most powerful) level of the system. Sudo also logs all commands and arguments.

What does sudo do in terminal?

sudo is an abbreviation of “super user do” and is a Linux command that allows programs to be executed as a super user (aka root user) or another user.