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62 lines
3.4 KiB
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How to Keep ‘sudo’ Password Timeout Session Longer in Linux
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============================================================
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In recent articles, we’ve showed you [10 Useful Sudoers Configurations in Linux][1] and [Let Sudo Insult You When You Enter Incorrect Password][2], and in this article, we discovered a another sudo tip that will help you to make sudo password sessions (timeout) longer or shorter in Ubuntu Linux.
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In Ubuntu and its derivatives such as Linux Mint or any other Ubuntu-based distro, when you execute a [sudo command][3], it will prompt you to enter administrative password.
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After you execute sudo command first time, the password will last for 15 minutes by default, so you don’t need to type password for every sudo command.
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If, somehow you feel that the 15 minutes too long or short for some reason, you can change it with a easy tweak in sudoers file.
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To set the sudo password timeout value, use the `passwd_timeout` parameter. First open the /etc/sudoers file with super user privileges using sudo and visudo commands like so:
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```
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$ sudo visudo
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```
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Then add the following defaults entry, it implies that the sudo password prompt will time out after 20 minutes once sudo is invoked by a user.
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```
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Defaults env_reset,timestamp_timeout=20
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```
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Note: You can set whatever time you want in minutes and make sure to wait before it times out. You can also set time to `0` if you want a password prompt for every sudo command you execute, or disable password prompt forever by setting the value `-1`.
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The screen shot below show the defaults parameters I have set in my /ec/sudoers file.
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[
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][4]
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Change sudo Password Timeout
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Save the file by pressing `[Ctrl + O]` and exit using `[Ctrl + X]`. Afterwards test if the setting is working by running a command with sudo and wait for 2 minutes to see if the password prompt will time out.
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In this post, we explained how to set the number of minutes before the sudo password prompt times out, remember to share your thoughts concerning this article or perhaps other [useful sudeors configurations for system administrators][5] out there via the feedback section below.
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--------------------------------------------------------------------------------
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作者简介：
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Aaron Kili is a Linux and F.O.S.S enthusiast, an upcoming Linux SysAdmin, web developer, and currently a content creator for TecMint who loves working with computers and strongly believes in sharing knowledge.
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via: http://www.tecmint.com/set-sudo-password-timeout-session-longer-linux/
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作者：[Aaron Kili ][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/aaronkili/
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[1]:http://www.tecmint.com/sudoers-configurations-for-setting-sudo-in-linux/
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[2]:http://www.tecmint.com/sudo-insult-when-enter-wrong-password/
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[3]:http://www.tecmint.com/su-vs-sudo-and-how-to-configure-sudo-in-linux/
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[4]:http://www.tecmint.com/wp-content/uploads/2017/01/set-sudo-password-timeout-session.png
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[5]:http://www.tecmint.com/sudoers-configurations-for-setting-sudo-in-linux/
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