16 Background on Services
- Understanding Services in Linux
- Services are background programs that manage system functionality.
- Learning about a service’s purpose before making changes prevents mistakes.
- Researching a service before modifying settings is crucial.
- Configuration Files for Services
- Most services have configuration files stored in
/etc/. - Complex services may have multiple configuration files spread across directories.
- Understanding these files is necessary for troubleshooting and customization.
- Most services have configuration files stored in
- Backing Up Configuration Files
- Always create backups before modifying configuration files.
- Backups help restore settings if a mistake is made.
- Finding template configuration files online can serve as a helpful reference.
- Restarting Services After Changes
- Many services require a restart to apply new configurations.
- Restarting the entire system is inefficient; restart only the service.
- Some configuration changes may not need a restart, depending on the service.
- Managing Service Dependencies
- Some services depend on others to function properly.
- Restarting or modifying one service may impact others.
- Knowing how services interact prevents unexpected failures.
- Checking Service Status
- Ensure a service is running before assuming it works.
- Some services are disabled by default and must be started manually.
- Using commands like
systemctl status <service>helps verify service status.
Next in Playlist: 17 Exploring Networking Configuration