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There are various ways and tools to find and list all running services under Fedora / RHEL / CentOS Linux systems.
service command – list running services
The syntax is as follows for CentOS/RHEL 6.x and older (pre systemd):
service --status-all service --status-all | more service --status-all | grep ntpd service --status-all | less
Print the status of any service
To print the status of apache (httpd) service:
service httpd status
List all known services (configured via SysV)
chkconfig --list
List service and their open ports
netstat -tulpn
Turn on / off service
ntsysv chkconfig service off chkconfig service on chkconfig httpd off chkconfig ntpd on
ntsysv is a simple interface for configuring runlevel services which are also configurable through chkconfig. By default, it configures the current runlevel. Just type ntsysv and select service you want to run.
A note about RHEL/CentOS 7.x with systemd
If you are using systemd based distro such as Fedora Linux v22/23/24 or RHEL/CentOS Linux 7.x+. Try the following command to list running services using the systemctl command. It control the systemd system and service manager.
To list systemd services on CentOS/RHEL 7.x+ use systemctl with the following syntax:
systemctl systemctl | more systemctl | grep httpd systemctl list-units --type service systemctl list-units --type mount
To list all services:
systemctl list-unit-files
Sample outputs:
To view processes associated with a particular service (cgroup), you can use the systemd-cgtop command. Like the top command, systemd-cgtop lists running processes based on their service:
systemd-cgtop
Sample outputs:
To list SysV services only on CentOS/RHEL 7.x+ use (does not include native systemd services):
chkconfig --list
Sample outputs:
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