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modules/ROOT/pages/_partials/proc_modifying-existing-systemd-services.adoc

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+[#modifying-existing-systemd-services]
+= Modifying existing systemd services
+
+This example shows how to modify an existing service. The files for service modification are stored in a directory within `/etc/systemd/system`. This directory is named after the service. For example, this procedure modifies the `httpd` service.
+
+.Prerequisites
+
+* You are logged in as a user with administrator-level permissions.
+
+* You have a configured `httpd` server running through systemd.
+
+.Procedure
+
+. Create a directory for the service modification in the following format: `[SERVICE NAME].service.d`. For example, the directory for the `httpd.service` modification is `httpd.service.d`:
++
+----
+# mkdir /etc/systemd/system/httpd.service.d/
+----
+
+. Create a configuration file within this directory:
++
+----
+# vi /etc/systemd/system/httpd.service.d/custom.conf
+----
+
+. Add your custom configuration. For example:
++
+----
+[Service]
+Restart=always
+RestartSec=30
+----
+
+. Save the file.
+
+. Restart the `httpd` service:
++
+----
+# systemctl restart httpd
+----
+
+.Related Information
+
+* See link:#common-service-parameters[Common service parameters] for more information about the parameters used in this procedure.