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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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Why some programs, like anydesk or sql, are started with the system? (lemmy.ml)

submitted 4 days ago* (last edited 4 days ago) by maxihuenu@lemmy.ml to c/linux@lemmy.ml

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Every time when i poweron the pc, some proccess are started with the system. Some of them are Anydesk and SQL. I had disable sql from start alongside the system with systemctl disable mysql, so i think that i need to do the same with anydesk. But why these programs make this? Even if i dont start the app/program, they will be there, eating resources from the start... WHY THIS HAPPEN?!?!

Edit: Something i forgot to put: why they have root permissions? this happen no wonder the system i install these programms, they have the same behaviour

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[–] artwork@lemmy.world 4 points 4 days ago* (last edited 4 days ago)

Wonderful day!

May I ask how did you install these programs?

For example, AnyDesk. The underlying service might be installed from the official repository DEB package.
As we may see, in the following package:
- https://deb.anydesk.com/pool/main/a/anydesk/anydesk_8.0.4_amd64.deb

There's a standard "postinst" script inside that installs the service:

"postinst" preview

#!/bin/bash

set -e

command_exists()
{
        command -v "$1" > /dev/null 2>&1
}

if [ "$1" = configure ]; then

        INITSYS=$(ls -al /proc/1/exe | awk -F' ' '{print $NF}' | awk -F'/' '{print $NF}')

        if [ "systemd" == "$INITSYS" ]; then
                if [ -e /etc/systemd/system/anydesk.service ]; then
                        rm /etc/systemd/system/anydesk.service
                fi
                cp /usr/share/anydesk/files/systemd/anydesk.service /etc/systemd/system/anydesk.service
                systemctl daemon-reload
                deb-systemd-invoke enable anydesk
                deb-systemd-invoke start anydesk
        elif [ "init" == "$INITSYS" ]; then
                if [ -e /etc/init.d/anydesk ]; then
                        rm /etc/init.d/anydesk
                fi
                chmod +x /usr/share/anydesk/files/init/anydesk
                ln -s /usr/share/anydesk/files/init/anydesk /etc/init.d/anydesk
                update-rc.d anydesk defaults
                invoke-rc.d anydesk start
        fi

        command_exists update-menus && update-menus
        command_exists update-desktop-database && update-desktop-database
        command_exists xdg-desktop-menu && xdg-desktop-menu forceupdate
fi

Since the script is copied into "system" path (not the User's "/etc/systemd/user/*"), it is executed by "root" by default, unless specifically specified in the service itself (e.g., directive "User=").

Just in case, "enabling" in marvelous Systemd means merely a symlink added to the directory the OS probes on boot. You should see the symlink location on service '(dis-)enabling".