View all Worklets
Linux

Update Login Banner

Updates and verifies login banner and sshd_config file.

Worklet Details

Introduction to the Bash-based Update Login Banners for Linux Worklet

The Update Login Banners for Linux Worklet is a Bash-based tool specifically designed for modifying and managing login banners on Linux-based systems. Login banners are essential elements that display a banner message or a custom warning banner before the password prompt when a user logs in.

This Worklet efficiently updates the login banner, positively contributing to the system's overall security status.

Why would you use the Update Login Banners for Linux Worklet?

With the rise in security threats, it has become crucial to adopt measures that enhance the security of your Linux system. The Update Login Banners for Linux Worklet is an effective tool that updates login banners, thereby providing an initial layer of security. By displaying a custom SSH warning banner, it can deter unauthorized users from attempting to breach the system.

This Worklet is specifically useful for systems that require multiple users to log in, as it helps send a clear warning message or policy reminder to every user before accessing the system.

Components of the Update Login Banners for Linux Worklet

The Worklet primarily consists of two components: the `etc ssh sshd_config` and the `motd` file, also known as the Message of the Day. The `sshd_config` file is a system configuration file for OpenSSH which allows you to set options that modify the operation of the daemon, including the banner file.

The `motd` file, on the other hand, is responsible for displaying the banner text or ASCII logo that users see when they log into the system.

How does the Update Login Banners for Linux Worklet work?

The Worklet operates by first examining the `sshd_config` file to ensure it refers to the `motd` file for the login banner. If the reference isn't found or is commented out, the Worklet updates the `sshd_config` file accordingly. Then, it checks the `motd` file and updates the banner message if it does not match the desired banner text.

If the `motd` file does not exist, the Worklet creates a new one and populates it with the desired banner text. After making changes, it restarts the SSH service to reflect the new banner.

What is the expected outcome when you use the Update Login Banners for Linux Worklet?

After using the Update Login Banners for Linux Worklet, you can expect a secure and updated login prompt displaying a custom warning banner every time a user logs into the system. The Worklet ensures that the `sshd_config` file properly references the `motd` file, and that the `motd` file contains the correct banner text.

If changes were made, the SSH service will be restarted to reflect these changes. This enhances the overall security of the Linux system by providing a clear warning to any unauthorized users attempting to log in.

https://console.automox.com/manage/worklet-catalog/165?o=108035&frompage=%2Fmanage%2Fworklet-catalog

View in app

Consider Worklets your easy button

What's a Worklet?

A Worklet is an automation script, written in Bash or PowerShell, designed for seamless execution on endpoints – at scale – within the Automox platform. Worklet automation scripts perform configuration, remediation, and the installation or removal of applications and settings across Windows, macOS, and Linux.

do more with worklets