Procedure 23.1. Editing the timemaster Configuration File

1. To change the default configuration, open the /etc/timemaster.conf file for editing as root:

   ~]# vi /etc/timemaster.conf

2. For each NTP server you want to control using timemaster, create [ntp_server address] sections . Note that the short polling values in the example section are not suitable for a public server, see Chapter 22, Configuring NTP Using ntpd for an explanation of suitable minpoll and maxpoll values.
3. To add interfaces that should be used in a domain, edit the #[ptp_domain 0] section and add the interfaces. Create additional domains as required. For example:

   [ptp_domain 0]
          interfaces eth0
   
          [ptp_domain 1]
          interfaces eth1

4. If required to use ntpd as the NTP daemon on this system, change the default entry in the [timemaster] section from chronyd to ntpd. See Configuring NTP Using the chrony Suite for information on the differences between ntpd and chronyd.
5. If using chronyd as the NTP server on this system, add any additional options below the default include /etc/chrony.conf entry in the [chrony.conf] section. Edit the default include entry if the path to /etc/chrony.conf is known to have changed.
6. If using ntpd as the NTP server on this system, add any additional options below the default include /etc/ntp.conf entry in the [ntp.conf] section. Edit the default include entry if the path to /etc/ntp.conf is known to have changed.
7. In the [ptp4l.conf] section, add any options to be copied to the configuration file generated for ptp4l. This chapter documents common options and more information is available in the ptp4l(8) manual page.
8. In the [chronyd] section, add any command line options to be passed to chronyd when called by timemaster. See Configuring NTP Using the chrony Suite for information on using chronyd.
9. In the [ntpd] section, add any command line options to be passed to ntpd when called by timemaster. See Chapter 22, Configuring NTP Using ntpd for information on using ntpd.
10. In the [phc2sys] section, add any command line options to be passed to phc2sys when called by timemaster. This chapter documents common options and more information is available in the phy2sys(8) manual page.
11. In the [ptp4l] section, add any command line options to be passed to ptp4l when called by timemaster. This chapter documents common options and more information is available in the ptp4l(8) manual page.
12. Save the configuration file and restart timemaster by issuing the following command as root:

    ~]# service timemaster restart