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This PR fixes the Package Updates module reporting "no updates" when dnf check-update fails. DNF prints its error to stderr and exits with status 1, but the module only read stdout, so a failed check looked like an empty list and was cached for hours. Users could go weeks or months without seeing that updates were blocked! The module now checks the exit status. When a check fails, it keeps the last known list, shows the error on the module and refresh pages, and retries after 15 minutes instead of caching an empty result. Scheduled checks email the failure instead of acting on the old list, and in new-only mode the failure is emailed once until a check succeeds again. Fixes https://forum.virtualmin.com/t/no-warning-of-dnf-error-suppressing-update/138052
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About
Webmin is a web-based system administration tool for Unix-like servers, and services with about 1,000,000 yearly installations worldwide. Using it, it is possible to configure operating system internals, such as users, disk quotas, services or configuration files, as well as modify, and control open-source apps, such as BIND DNS Server, Apache HTTP Server, PHP, MySQL, and many more.
Usability can be expanded by installing modules, which can be custom made. Aside from this, there are two other major projects that extend its functionality:
- Virtualmin is a powerful, flexible, most popular, and most comprehensive web-hosting control panel for Linux, and BSD systems, with over 150,000 installations worldwide. It is available in an open-source community-supported version, and a more feature-filled version with premium support;
- Usermin presents and controls a subset of user-centred features, rather than administrator-level tasks.
Webmin includes 116 standard modules, and there are at least as many third-party modules.
Requirements
Perl 5.10 or higher.
Installation
For detailed installation instructions check our guide on webmin.com/download page.
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License
Webmin is released under the BSD License.