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What is the maximum default caching period for sudo credentials?
5 minutes
The sudoers policy caches credentials for 5 minutes, unless overridden in sudoers(5). By running sudo with the -v option, a user can update the cached credentials without running a command.
How is sudo different from SU?
Sudo runs a single command with root privileges. This is a key difference between su and sudo. Su switches you to the root user account and requires the root account’s password. Sudo runs a single command with root privileges – it doesn’t switch to the root user or require a separate root user password.
Why does Sudo remember password after 15 minutes?
This is because sudo remembers your password for 15 minutes by default. After 15 minutes, you will be asked to enter the password again for any sudo command. This is actually a security feature. For instance, if you left the terminal open after running commands with sudo, the authentication automatically expires after 15 minutes of sudo inactivity.
How to change Sudo password timeout in Linux-ostechnix?
Save the file by pressing Ctrl+O and press ENTER. And then, close the file by pressing CTRL+X. If you’re the only one who have the access to the system, there is no need to set sudo password limit shorter. You can increase the password timeout value much longer. 1.2. Always ask for sudo password
Is there a limit to the number of days a password can be used?
Reference. The Maximum password age policy setting determines the period of time (in days) that a password can be used before the system requires the user to change it. You can set passwords to expire after a number of days between 1 and 999, or you can specify that passwords never expire by setting the number of days to 0.
How many minutes is the default timeout in sudoers?
That depends on your configuration. The default on most distributions (and in the source) is 5 minutes, but you can change it with the timestamp_timeout option in /etc/sudoers. From man sudoers: