Samba 2:3.4.7

 [libdefaults]
    default_realm = KAGAZ.LOCAL
# The following krb5.conf variables are only for MIT Kerberos.
    krb4_config = /etc/krb.conf
    krb4_realms = /etc/krb.realms
    kdc_timesync = 1
    ccache_type = 4
    forwardable = true
    proxiable = true
# The following encryption type specification will be used by MIT Kerberos
# if uncommented.  In general, the defaults in the MIT Kerberos code are
# correct and overriding these specifications only serves to disable new
# encryption types as they are added, creating interoperability problems.
#
# Thie only time when you might need to uncomment these lines and change
# the enctypes is if you have local software that will break on ticket
# caches containing ticket encryption types it doesn't know about (such as
# old versions of Sun Java).
#    default_tgs_enctypes = des3-hmac-sha1
#    default_tkt_enctypes = des3-hmac-sha1
#    permitted_enctypes = des3-hmac-sha1
# The following libdefaults parameters are only for Heimdal Kerberos.
    v4_instance_resolve = false
    v4_name_convert = {
        host = {
            rcmd = host
            ftp = ftp
        }
        plain = {
            something = something-else
        }
    }
    fcc-mit-ticketflags = true
[realms]
    ATHENA.MIT.EDU = {
        kdc = kerberos.mit.edu:88
        kdc = kerberos-1.mit.edu:88
        kdc = kerberos-2.mit.edu:88
        admin_server = kerberos.mit.edu
        default_domain = mit.edu
    }
    MEDIA-LAB.MIT.EDU = {
        kdc = kerberos.media.mit.edu
        admin_server = kerberos.media.mit.edu
    }
    ZONE.MIT.EDU = {
        kdc = casio.mit.edu
        kdc = seiko.mit.edu
        admin_server = casio.mit.edu
    }
    MOOF.MIT.EDU = {
        kdc = three-headed-dogcow.mit.edu:88
        kdc = three-headed-dogcow-1.mit.edu:88
        admin_server = three-headed-dogcow.mit.edu
    }
    CSAIL.MIT.EDU = {
        kdc = kerberos-1.csail.mit.edu
        kdc = kerberos-2.csail.mit.edu
        admin_server = kerberos.csail.mit.edu
        default_domain = csail.mit.edu
        krb524_server = krb524.csail.mit.edu
    }
    IHTFP.ORG = {
        kdc = kerberos.ihtfp.org
        admin_server = kerberos.ihtfp.org
    }
    GNU.ORG = {
        kdc = kerberos.gnu.org
        kdc = kerberos-2.gnu.org
        kdc = kerberos-3.gnu.org
        admin_server = kerberos.gnu.org
    }
    1TS.ORG = {
        kdc = kerberos.1ts.org
        admin_server = kerberos.1ts.org
    }
    GRATUITOUS.ORG = {
        kdc = kerberos.gratuitous.org
        admin_server = kerberos.gratuitous.org
    }
    DOOMCOM.ORG = {
        kdc = kerberos.doomcom.org
        admin_server = kerberos.doomcom.org
    }
    ANDREW.CMU.EDU = {
        kdc = vice28.fs.andrew.cmu.edu
        kdc = vice2.fs.andrew.cmu.edu
        kdc = vice11.fs.andrew.cmu.edu
        kdc = vice12.fs.andrew.cmu.edu
        admin_server = vice28.fs.andrew.cmu.edu
        default_domain = andrew.cmu.edu
    }
    CS.CMU.EDU = {
        kdc = kerberos.cs.cmu.edu
        kdc = kerberos-2.srv.cs.cmu.edu
        admin_server = kerberos.cs.cmu.edu
    }
    DEMENTIA.ORG = {
        kdc = kerberos.dementia.org
        kdc = kerberos2.dementia.org
        admin_server = kerberos.dementia.org
    }
    stanford.edu = {
        kdc = krb5auth1.stanford.edu
        kdc = krb5auth2.stanford.edu
        kdc = krb5auth3.stanford.edu
        master_kdc = krb5auth1.stanford.edu
        admin_server = krb5-admin.stanford.edu
        default_domain = stanford.edu
    }
[domain_realm]
    .mit.edu = ATHENA.MIT.EDU
    mit.edu = ATHENA.MIT.EDU
    .media.mit.edu = MEDIA-LAB.MIT.EDU
    media.mit.edu = MEDIA-LAB.MIT.EDU
    .csail.mit.edu = CSAIL.MIT.EDU
    csail.mit.edu = CSAIL.MIT.EDU
    .whoi.edu = ATHENA.MIT.EDU
    whoi.edu = ATHENA.MIT.EDU
    .stanford.edu = stanford.edu
    .slac.stanford.edu = SLAC.STANFORD.EDU
[login]
    krb4_convert = true
    krb4_get_tickets = false

server    127.127.1.0    # local clock
fudge    127.127.1.0 stratum 10    
[b]server 192.168.0.212[/b]
driftfile /var/lib/ntp/drift
multicastclient            # listen on default 224.0.1.1
broadcastdelay    0.008

Synchronising a linux ntp client machine to a linux based ntp server is fairly straightforward. It is mainly a case of configuring the /etc/ntp.conf file on the client machine.
 
You must ensure NTPD is installed on the client, if not then you will either need to install it or download it from ntp.org and recompile.
 
After NTPD is installed correctly, all you need to do is to edit the ntp.conf file to specify the server as your linux ntp server machine.
 
eg:
 
server 192.168.0.200             # where 192.168.0.200 is the IP address of the NTP server with the GPS.
 
You may specify additional servers, if required.
 
A useful ntp app is ntpq or ntp query, which is installed with ntpd. This can be run from the client to check the status of the server.
 
Try:
ntpq -p 192.168.0.200           # where 192.168.0.200 is the IP address of the NTP server with the GPS.