SUMMARY - Network Time Server for UNIX

From: Edward Huang (
Date: Fri Aug 04 2000 - 13:29:08 CDT

THanks for the huge and quick response! attached are some of the responses,
sorry, too many responses to list them all.

I stand corrected - NTP is the correct name (NNTP is Network News Transfer Protocol)

Everyone suggested for more information

Solaris 2.6 and later comes with it (called TIME service or xntp !)



NNTP is a news server. Ntp or xntp are time servers. Solaris 2.6 and later
come with xntp. Just set up /etc/inet/ntp.conf and then run
        /etc/rc2.d/S74xntpd start
and check /var/adm/messages for errors. Once you have xntp working, it
will restart at the next boot.

For Cisco boxes, you can use the ntp config command to point them at one
of you local systems which is getting its time from a master clock. Windows
systems can use "About Time" from

If you have Solaris 2.5.1 or earlier, you can use xntp 3.4, which I got
some time back. To quote the README: "This distribution is normally
available by anonymous ftp as the compressed tar archive
xntp-<version>.tar.Z in the pub/ntp directory on"

Ric Anderson (

From: Thomas Knox <>
      Sean Harding

Go to


> where can I find a Network Time Server (NNTP) for UNIX?

NNTP is a news transfer protocol. NTP is the time server protocol.

> (to synchronize non-Sun devices such as PCs, Cisco routers & switches, etc;
> for Suns, we have RDATE)

Although most UNIX versions (including Solaris 2.6 and higher) come with
some version of it already in the OS. You just have to configure it.
Older versions were called xntpd.

comp.protocols.time.ntp is a good newsgroup for NTP issues.

Darren Dunham                                 
Unix System Administrator                    Taos - The SysAdmin Company
Got some Dr Pepper?                               San Francisco Bay Area
      < Please move on, ...nothing to see here,  please disperse >Tom


From: "Otto, Doug" <>

cd /etc/inet

edit the ntp.server file as you like and cp it to ntp.conf

it starts automatically from rc2 if ntp.conf exists


From: Arthur Darren Dunham <>

> where can I find a Network Time Server (NNTP) for UNIX?

For which Unix? Solaris 6, and later, come standard with NTP, as does HP-UX 10.x and later. Those are the only two Unices I'm familiar with. For any of the rest, you can build the daemon from source.

> (to synchronize non-Sun devices such as PCs, Cisco routers & switches, etc;

For PC's, that depends on the OS. For NT4, there's "timeserv" in the NT Resource Kit. For Windows 95, there's a freeware product called Dimension 4 that works quite well, but it's a bitch to deinstall.

For Cisco I can't help.

> for Suns, we have RDATE)

You either have, or can get, NTP as well.



From: Eddy Fafard <> Reply-To: Organization: X-Mailer: Mozilla 4.72 [en] (X11; U; Linux 2.2.16 i686) X-Accept-Language: en Mime-Version: 1.0 To: Subject: Re: Network Time Server for UNIX References: <> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Length: 2083 Status: OR

I use ntp to sync off of and/or and then use ntpdate (part of ntp) or rdate to sync of my local time server. I found ntp to flakey to use on all my systems



Hi Edward,

As NNTP is Network News Transfer Protocol, I assume you mean NTP, the Network Time Protocol :-)

Please see my doc at

Best regards.

-- | Hal Miller (HAM10) System Architect |, or | | AVCOM Technologies, Inc. | | | 4636 E. Marginal Way South, Suite B100 | voice: +1(206) 762-4000 x111 | | Seattle, Washington 98134 | fax: +1(206) 762-4400 | |Member, The System Administrators Guild of Australia - |

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