[KLUG Members] clock synch

[bill]

In Windows, I had a program I could use to sync the internal clock (which is
always a bit off, regardless of OS) with some time servers.  I could schedule
the program to go online once a day and sync the computer's clock against up to
15 time servers (I used all of them as some were always down or unavailable on
the web).  I'm looking to do something similar in Linux.

On Linux RH 7.3 (in gnome) there is a program on the menu called Date/Time
properties that has an option called "Network Time Protocol" that, if checked,
allows you to select a single time server.  I tried all the different servers
for at least 24 hours each while my CMOS battery was dying but none of them
seemed to work.

Question: does this method work but is somehow failing behind my firewall (using
an odd port or something)?  Or is there another method to do the same thing,
maybe find a program to schedule in cron?

kind regards,

bill hollett