Live tool

Systemd Unit Helper

Generate practical systemd unit file patterns and service definitions for common Linux service scenarios.

Live 0 unit files generated Linux Helper systemd Linux Services Unit Files

Open tool

Unit kind

Unit name

Template units like myworker@.service are supported.

Description

Service type

ExecStart

ExecStop

ExecReload

WorkingDirectory

User

Group

Restart policy

RestartSec

WantedBy target

Environment variables

One KEY=value pair per line.

EnvironmentFile

PIDFile

Requires

Wants

Before

After

ListenStream

Socket Service

OnCalendar

Timer Unit target

Add ProtectSystem=full

Add NoNewPrivileges=true

Add PrivateTmp=true

Include [Install] section

Reset

Unit kind Service

Unit name myapp.service

Service type simple

WantedBy multi-user.target

Generated unit file

[Unit]
Description=My application service
After=network.target

[Service]
Type=simple
ExecStart=/usr/bin/python3 /opt/myapp/app.py
WorkingDirectory=/opt/myapp
User=myapp
Group=myapp
Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target

systemctl commands

sudo nano /etc/systemd/system/myapp.service
sudo systemctl daemon-reload
sudo systemctl enable myapp.service
sudo systemctl start myapp.service
sudo systemctl status myapp.service
journalctl -u myapp.service -f

What this means

This helper generates a service unit baseline you can place under /etc/systemd/system before running daemon-reload and lifecycle commands.

The generated service unit includes WantedBy=multi-user.target, dependency fields where provided, and no explicit hardening directives.

Use this as a strong starting point, not as a substitute for real service design. You still need to validate dependencies, service behavior, security posture, logging expectations, and runtime failure modes.

Unit breakdown

Unit kind: Service
Unit name: myapp.service
Description: My application service
Requires: None
Wants: None
Before: None
After: network.target
Service type: simple
ExecStart: /usr/bin/python3 /opt/myapp/app.py
ExecStop: Not set
ExecReload: Not set
WorkingDirectory: /opt/myapp
User: myapp
Group: myapp
EnvironmentFile: Not set
PIDFile: Not set
Restart policy: on-failure
RestartSec: 5
Environment variables: None
ProtectSystem=full: No
NoNewPrivileges=true: No
PrivateTmp=true: No
Install section: Yes
WantedBy: multi-user.target@.service&descriptionInput=My%20templated%20worker&serviceType=simple&execStart=/opt/myapp/run.sh%20%i&runAsUser=myapp&runAsGroup=myapp&restartPolicy=on-failure&restartSec=5&wantedByTarget=multi-user.target&afterInput=network.target&enableInstallSection=true&privateTmp=true&noNewPrivileges=true">
                                Templated service
                            </a>

                            <a class="btn btn-outline-secondary btn-sm"
                               href="/Tools/SystemdUnitHelper?unitKind=socket&unitName=myapp.socket&descriptionInput=My%20application%20socket&listenStream=127.0.0.1:8080&socketServiceName=myapp.service&wantedByTarget=sockets.target&enableInstallSection=true">
                                Socket unit
                            </a>

                            <a class="btn btn-outline-secondary btn-sm"
                               href="/Tools/SystemdUnitHelper?unitKind=timer&unitName=maintenance.timer&descriptionInput=Nightly%20maintenance%20timer&onCalendarValue=daily&timerUnitName=maintenance.service&wantedByTarget=timers.target&enableInstallSection=true">
                                Timer unit
                            </a>
                        </div>
                    </div>
                </div>
            </div>
        </div>

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            <div class="col-lg-8">
                <div class="tool-section-card">
                    <div class="tool-section-card__header">
                        <div>
                            <h2 class="tool-section-card__title">systemd quick guide</h2>
                            <p class="tool-section-card__subtitle mb-0">
                                Practical reminders for service, socket, and timer units on Linux systems.
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                    <div class="tool-section-card__body">
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                                <h3 class="h6">Dependencies are intent</h3>
                                <p class="mb-0 text-muted">
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                                <h3 class="h6">Hardening is not decoration</h3>
                                <p class="mb-0 text-muted">
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                                </p>
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                                <h3 class="h6">Unit kind changes everything</h3>
                                <p class="mb-0 text-muted">
                                    A service, socket, and timer unit are not variations of the same thing. Use the right model or you are configuring noise, not automation.
                                </p>
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Systemd Unit Helper

Input

Result

What this means