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| Developer(s) | Jamie Cameron Ilia Rostovtsev and the Webmin community[1] |
|---|---|
| Initial release | October 5, 1997 (version 0.1) |
| Stable release | 2.303[2]  (2025-03-17; 26 days ago) [±] |
| Repository | |
| Written in | Perl |
| Operating system | Linux (RHEL,Fedora,CentOS,AlmaLinux,Rocky Linux,Oracle Linux,Debian,Ubuntu),FreeBSD,OpenSUSE and otherUnix-like operating systems[3][4] |
| Available in | English, and other 41 languages[5] |
| Type | Control panel |
| License | BSD 3-clause "New" or "Revised" License |
| Website | www |
Webmin is a web-based server management control panel forUnix-like systems. Webmin allows the user to configure operating system internals, such as users, disk quotas, services and configuration files, as well as modify and controlopen-source apps, such asBIND,Apache HTTP Server,PHP, andMySQL.[6][7]
Webmin, written by Jamie Cameron, was first released as version 0.1 in October 1997. It was originally written during the time that Cameron administered a DNS server and needed an easy-to-use interface to allow users to make changes to the DNS records without giving them root access to the server.[8] Over time, various themes, a dashboard that displays CPU, RAM, and disk space usage with visual gauges, and a sidebar with a search function were also added.[9]
Financial support for the Webmin project came from the Linux distribution companies Caldera and MSC Linux, as well as many user contributions of code patches, hundreds of modules, language translations, and user suggestions.[8]
In 2019, a backdoor was discovered which would allow a remote attacker to execute malicious commands with root privileges on the machine running Webmin. This backdoor exploit was present on versions 1.882-1.921, when a network admin would enable the password expiration policy. Developers of Webmin believed that the backdoor being introduced was the result of a malicious injection to the code via the online source code repositorySourceForge.[10]
Since its release, the Webmin user interface, its appearance, and its many features have changed dramatically using code that has been completely rewritten over the subsequent versions.This includes the overhaul brought by Webmin 2.0, which enforced strictHTTP Strict Transport Security policy for SSL, and gave options to users upgrading from older versions.[11][12]
Webmin is largely based onPerl, running as its own process andweb server. It defaults toTCP port 10000 for communicating, and can be configured to useSSL ifOpenSSL is installed with additional requiredPerl modules. Webmin is built around over 110 standardmodules, which have aninterface to theconfiguration files and the Webmin server, which makes it simple to add new functionality. Due to Webmin's modular design, it is possible for anyone who is interested to write plugins fordesktop configuration. Webmin allows for controlling many machines through a single interface, or seamless login on other Webmin hosts on the same subnet orLAN.
Webmin is released under theBSD license.
If a plugin for certain tasks is not available, it is possible to open aterminal and perform various task through acommand line interface (CLI). This is especially useful if usingSSH (or similar) is not an option.
While Webmin was included in the official repositories of someLinux distributions (Debian andUbuntu), it was removed from those because Webmin was not compatible with the way that the distributions' packages handled configuration files and caused unexpected issues with systems.[13]
Webmin can be expanded by installing modules,[7] which can be custom made. Aside from this, there are two other major projects that extend the functionality of Webmin:
Webmin releasedMinecraft Server Module 1.0 in January 2013, and version 1.1 in March 2013. The module presents a very basic GUI for server administration. The Webmin Minecraft server is free and open source with no limitations on simultaneous players.
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