I personally use 194.159.73.44 as a time server. Works fine for me, although I don't know if it would be a good 'local' for you, but you could check it out.
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Question
Using NTP with Cisco ASA 5505
Hello Experts -
What is the best practice for setting up NTP on a Cisco ASA 5505. I'm not looking for the commands just any tips you can provide for syncing the time of all PCs to a firewall. Also, are there any recommended public NTP servers?
Thanks in advance.
chezbrgrs
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Answers
Sorry I wasn't very clear. This is for my home and I don't use a DC. Is it possible to setup an ASA to get its time from an NTP server and then sync my home PCs with it?
Also, didn't there use to be a tick and tock military (or NASA) NTP server that was for public use?
Thank again. Sorry for the delay.
chezbrgrs
ntp server ip-address [key number] [source if-name] [prefer]
The above command in config mode would set the time to be derived from an NTP server.
http://support.ntp.org/bin
The link above has an ntp server (Open access) from NASA's Ohio research center. So the command to configure would be;
ntp server 128.156.1.43 source (interface-name)
That should do, now for your internal client machines, point them to ASA for time synchronization.
http://etherealmind.com/20
Look at the above as reference.
Cheers,
Rajesh
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by: rsivanandanPosted on 2008-09-04 at 00:49:56ID: 22384948
I'd suggest to have your Domain Controllers use public ntp servers to sync their time and have all the domain members sync the time with the DC.
http://support.ntp.org/bin
Check the above for different stratum 1 and stratum 2 servers.
Cheers,
Rajesh