In Debian that set of tools is APT which stands for Advance Packaging Tool, it is aimed at administering the Debian system, the basic tool is dpkg, over it you have better known set of tools, like apt-get, apt-cache and apt, this last one, should not be confused with APT, the Advance Packaging Tool, some other tools which are alternatives to the former are: aptitude and for a graphical internface Synaptic Sources
The basic informacion kept in that database among others is: To achieve that a good package manager keeps a record of all programs installed, and the dependencies needed by any other program, all of these info is saved in a Database. The package manager should deals with dependencies and compatibilities to assure proper function of the computer programs installed on a given system. The Advance Packaging ToolĪ package manager is a set of software tools to install, update and upgrade the programs needed by the computer to work.
Maintenance tasks in Linux servers is important, specially because of security risk your system is exposed at when not properly updated and maintened. Maintenance is an important part of any system, being it a car, a machine, or a server, and if your server is running Debian Linux or some its derivatives like Ubuntu you have different tools to keep working properly
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