Running RHEL-8.9 I have a handful+ servers in a computer lab, which do not have an internet connection and [currently] have no means of fetching any kind of stratum-0 type time. We therefore manually set time in linux to local time on one sever which is good enough, and the server bios/efi clock is set to UTC.
I am having issues getting other servers to time sync, if I manually do a
date on each simultaneously they are 60+ seconds off and I am getting frustrated with this not working. If anyone is so inclined can you describe in as short as possible the process [which should be simple?] to do the following?
- Server @ 192.168.1.1 I have made my time server
- firewalld port 123-udp and 323-udp is open
- /etc/chronyd.conf
- has no server line, because it does not fetch a time
- has allow 192.168.1.0/24
- has local stratum 10
- Servers @ 192.168.1.x
- /etc/chrony.conf has server 192.168.1.1 iburst maxpoll 10
- rest of chrony.conf is whatever is the default from a clean install from rhel-8.9-x86_64-dvd.iso; everything else basically commented out
**How can I immediately time sync in linux**, on a new server having a clean install from rhel-8.9.iso where its clock is however many minutes off from my 192.168.1.1 server? So I don't care how far off the time is and I do not expect any software to break as it's a clean install with only me ssh'ing in as root at this point in time.
And what is the simplest way to check that chrony is working a [client] system that it can connect to a time server and that it *will* time sync? And if my clock if off 45 seconds how do I know when it will be sync'd ? What can I look at that will give me confidence that when I check an hour later or tomorrow that the time will be sync'd, rather than coming back each day for a week finding no time sync.
Asked by ron
(8647 rep)
Mar 21, 2024, 06:30 PM