Systemd/Hardening/ru: Difference between revisions

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Created page with "Опции служб Systemd по умолчанию довольно слабые по защищённости, поэтому часто бывает желательно рассмотреть способы усиления безопасности служб Systemd."
 
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Опции служб Systemd по умолчанию довольно слабые по защищённости, поэтому часто бывает желательно рассмотреть способы усиления безопасности служб Systemd.
Systemd's service options are quite lax by default, and so it is often desirable to look at ways to harden systemd services.
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A good way to get started on a given service is to look at the output of the command <code>systemd-analyze security myService</code>. From there, you can look at the documentation for the options you see in the output, often in <code>man systemd.exec</code> or <code>man systemd.resource-control</code>, and set the appropriate options for your service.
A good way to get started on a given service is to look at the output of the command <code>systemd-analyze security myService</code>. From there, you can look at the documentation for the options you see in the output, often in <code>man systemd.exec</code> or <code>man systemd.resource-control</code>, and set the appropriate options for your service.
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While hardening a service, it often happens that you want a shell inside a hardened systemd unit, for exemple to check access to files, or check the network connectivity. One way to do this is to use tmux to create a session inside the service, and attaching to it outside of the service.
While hardening a service, it often happens that you want a shell inside a hardened systemd unit, for exemple to check access to files, or check the network connectivity. One way to do this is to use tmux to create a session inside the service, and attaching to it outside of the service.
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Простой пример:
Simple example:
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Example with a <code>RootDirectory</code> specified:
Example with a <code>RootDirectory</code> specified:
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{ pkgs }:
{ pkgs }:
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       ExecStop = "${pkgs.tmux}/bin/tmux -S /run/myService/tmux.socket kill-session -t my-session";
       ExecStop = "${pkgs.tmux}/bin/tmux -S /run/myService/tmux.socket kill-session -t my-session";
       Type = "forking";
       Type = "forking";
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       BindReadOnlyPaths = [
BindReadOnlyPaths = [
         "/nix/store"
         "/nix/store"
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