Once this is complete, log out and log back in. If you want to change the behavior, such that it always asks for a password, the Defaults line would look like: Your account should now not require the sudo password for 30 minutes. Once you have verified that the user account is functioning properly, exit out of the SSH session, log out of the terminal window, and log back in. Wait thirty or more minute, and you should be prompted for that password. You shouldn’t be prompted for a sudo password. Wait six or more minutes, and issue the command again. If you’re working with that user, I recommend you login via SSH and issue a sudo command (such as sudo apt-get update). In the file, you’ll want to add at the end: Let’s say you have multiple users on this machine, and you want to extend the timeout, for one particular user, to thirty minutes. Now that you know to never edit the sudoers file outside of visudo, let’s make the change. Without using visudo, you could leave an error in the sudoers file that would render you unable to do any administrative work. On top of that, visudo also runs sanity checks and tests for parse errors - so you don’t have to worry that you’ve made a mistake in the sudoers file that’ll prevent you from using sudo. In other words, if you have the sudoers file open in visudo, no one else can open the file in write mode. Using visudo locks the sudoers file against simultaneous edits. Why would you want to use visudo instead of just issuing the command sudo nano /etc/sudoers? Simple. In order to edit the sudoers file, there’s a tool you’ll want to know about. All you have to do is edit the sudoers file. How do I do that? It’s actually quite simple. Or, if a machine is in a high traffic area, I might want to change the default behavior such that sudo always asks for a password (no matter how much time has passed). This is especially the case when I’m working on a machine only I have physical access to and would prefer the sudo timeout be a bit longer. SEE: IT pro’s guide to working smarter with Linux (Tech Pro Research)īut sometimes I need that to function a bit differently. This is great if you step away from your machine for a bit and don’t want to worry that, after the five minutes of inactivity, someone comes along and could issue a sudo command without having to first input a password. ProtonVPN Review (2023): Features, Pricing and Alternativesĥ Tips for Securing Data When Using a Personal Mac for Workīy default, sudo will always prompt you for your password after five minutes of sudo inactivity. Must-read security coverageĦ Best Cybersecurity Certifications of 2023Ĩ Best Penetration Testing Tools and Software for 2023 But there are times, when I am busy multitasking or installing a new server software on a Linux box that sudo frustrates me. And, for the most part, it’s pretty foolproof. The sudo system is an ingenious way to manage who can run administrative commands on a Linux system.
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