Why should we set the command line interface to timeout and exit?
Check whether the command line interface timeout is set to ensure the security and availability of the system. Here are some reasons:
Prevent malicious attacks:
If the user does not perform any operations on the command line interface for a period of time, the interface may be exploited by malicious users to execute malicious code or steal data. This risk can be effectively reduced by setting a timeout to exit.
Improve system efficiency:
If the user does not close the command line interface when leaving the computer, these interfaces may occupy system resources and affect the operating efficiency of the system. Setting a timeout to exit can ensure that the interface is automatically closed when the user is inactive for a long time, thus improving the efficiency of the system.
Avoid wasting resources:
If the user leaves the computer while performing long-term operations, these operations may continue to occupy system resources, resulting in a waste of resources. By setting a timeout to exit, the interface can be automatically closed after a period of time to avoid wasting resources.
Improve user experience:
For some systems or services that require payment, if the user does not perform any operations for a period of time, the system may automatically log out and require the user to log in again. By setting a timeout to exit, you can improve the user experience and avoid the inconvenience caused by users forgetting to close the interface.
Set command line interface timeout to exit
In Linux, to check whether the command line interface is set to timeout and exit, you can perform the following steps:
-
Open a terminal or SSH client and log in to the Linux system as root or a user with administrator rights.
-
The default terminal configuration file directory is
/etc/profile. Use a text editor to open the terminal configuration file.
sudo vi /etc/profile
- Search for the TMOUT option in the file and change the value to between 300-600. If the TMOUT option is not found, we can add configuration parameters at the end of the file, save and exit.
# 请注意，对于不同的Linux发行版，终端配置文件的位置和语法可能会有所不同
TMOUT=600
# 或者
export TMOUT=600
- To make the configuration take effect immediately, enter the following command
source /etc/profile
Through the above steps, you can check and configure whether the command line interface is set to timeout in the Linux system.