credativ® Blog
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29 March 2022
Yunohost – Easily host and manage your own applications
What is it? Yunohost enables users to manage a Linux server entirely via a web UI. This includes server administration, application deployment, and integration into existing infrastructure. In general, Yunohost is available under the AGPL 3.0. However, since it is based on Debian, there may be deviations, as may also be the case with the […]
15 March 2022
Introduction to AppArmor
Fundamentally, access control under Linux is a simple matter: Files specify their access rights (execute, write, read) separately for their owner, their group, and finally, other users. Every process (whether a user’s shell or a system service) running on the system operates under a user ID and group ID, which are used for access control. […]
08 March 2022
SQLreduce: Reduce verbose SQL queries to minimal examples
SQLreduce: Reduce verbose SQL queries to minimal examples Developers often face very large SQL queries that raise some errors. SQLreduce is a tool to reduce that complexity to a minimal query. SQLsmith generates random SQL queries SQLsmith is a tool that generates random SQL queries and runs them against a PostgreSQL server (and other DBMS […]
06 January 2022
PostgreSQL and Undelete
pg_dirtyread I recently updated pg_dirtyread to work with PostgreSQL 14. pg_dirtyread is a PostgreSQL extension that allows reading “dead” rows from tables, i.e., rows that have already been deleted or updated. Of course, this only works if the table has not yet been cleaned by a VACUUM command or autovacuum, PostgreSQL’s garbage collection. Here is […]
17 November 2021
Debian 11 "Bullseye" Released
Congratulations to the Debian Community The Debian Project just released version 11 (aka “bullseye”) of their free operating system. In total, over 6,208 contributors worked on this release and were indispensable in making this launch happen. We would like to thank everyone involved for their combined efforts, hard work, and many hours pent in recent […]