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dpkg-genchanges reads the information from an unpacked Debian tree source that once constructed creates a control file (.changes). dpkg-buildpackage is a control script that can be used to construct the package automatically. dpkg-distaddfile adds a file input to debian/files.
By default, OpenRC uses a modified version of start-stop-daemon for daemon management. [10] Init scripts share similarities with scripts used in sysvinit, but offer several features to simplify their creation. Scripts are assumed to have start(), stop() and status(); and the system uses variables already declared to create the default functions ...
The /etc/inittab file sets the default runlevel with the :initdefault: entry. On Unix systems, changing the runlevel is achieved by starting only the missing services (as each level defines only those that are started / stopped). [citation needed] For example, changing a system from runlevel 3 to 4 might only start the local X server. Going ...
The writer service doesn't have to be activated until the first write operation is performed. The service is completely stateless and can start and stop dynamically. The list of change notifications that an individual client is interested in is maintained by the bus daemon (as a D-Bus signal watch/match list).
Services FTP requests from a remote system. httpd: Web server daemon. inetd [4] Listens for network connection requests. If a request is accepted, it can launch a background daemon to handle the request, was known as the super server for this reason. Some systems use the replacement command xinetd. lpd: The line printer daemon that manages ...
Once the kernel has started, it starts the init process, [20] a daemon which then bootstraps the user space, for example by checking and mounting file systems, and starting up other processes. The init system is the first daemon to start (during booting) and the last daemon to terminate (during shutdown).
In a Linux system, for example, the watchdog daemon could attempt to perform a software-initiated restart, which can be preferable to a hardware reset as the file systems will be safely unmounted and fault information will be logged. It is essential, however, to have the insurance provided by a hardware timer, since a software restart can fail ...
Upstart operates asynchronously; it handles starting of the tasks and services during boot and stopping them during shutdown, and also supervises the tasks and services while the system is running. Easy transition and perfect backward compatibility with sysvinit were the explicit design goals; [ 4 ] accordingly, Upstart can run unmodified ...