![]() Don’t close the file yet, move to the bottom of the file and add the following lines in order for other clients to be able to query and sync the time with this NTP server, issuing signed NTP requests, in case the primary DC goes offline: restrict source notrap nomodify noquery mssntpĤ. # nano /etc/ntp.confĪdd following lines to ntp.conf file. After NTP daemon has been installed, open the main configuration file, comment the default pools (add a # in front of each pool line) and add a new pool which will point back to the main Samba4 AD DC FQDN with NTP server installed, as suggested on the below example. To overcome the problem of time drifting between two or more domain controllers, you need to install and configure NTP server on your machine by executing the below command. If the delay is greater than 5 minutes on both directions and their clocks are not properly in sync, you should start experiencing various problems with AD accounts and domain replication. Before starting to replicate the contents of the sysvol directory across both domain controllers you need to provide an accurate time for these machines. Step 1: Accurate Time Synchronization Across DCsġ. Join Ubuntu 16.04 as Additional Domain Controller to Samba4 AD DC – Part 5. ![]() This topic will cover SysVol replication across two Samba4 Active Directory Domain Controllers performed with the help of a few powerful Linux tools, such as Rsync file synchronization utility, Cron scheduling daemon and SSH protocol.
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