I've been trying to set up an NTP server within my own local network, and have it sync with an outside server. It appears that my ISP is blocking NTP access; I can get a sync only when I run ntpdate -u.
While I could do that manually, or even set it up as a cron job, I'd rather set up ntpd to do this at intervals if possible. Any suggestions as to how I can configure ntpd to work correctly, and/or pointers to tutorials that might help?
What does your /etc/ntp.conf file look like currently? Are you sure ntp packets are going out but not returning? ('tcpdump port ntp' or 'tcpdump port 123' might help debug this.)
On a side note, what kind of fascist, unfriendly ISP blocks NTP traffic? Correct timekeeping is essential for a properly run network (especially if you have shared filesystems or want to be able to merge logfiles).
