Shaochun Wang wrote: > The stupid net administrator of my institute blocked all UDP datagram > in the firewall. I know that NTP uses UDP to do its work, but is it > possible to let ntpd use TCP? >
The only "trick" around this, is to use a TCP-based VPN tunnel to a point outside the firewall, and forward your queries through this. However, a "solution" like this will add a VARIABLE latency on your packets, giving you (in reality) a worse clock than using the internal CMOS one. I would suggest talking to the net-admin (who is actually doing everything correctly, f.y.i.) about setting up a network-wide ntp server with openings in the firewall (probably a good idea to run this in the DMZ area, not on the internal net), or get a clock-sync device like a GPS or Atomic Clock receiver, and sync through that. Regards, -- Svein Skogen | Mobile Phone: +47 907 03 575 Solberg Østli 9 | [EMAIL PROTECTED] 2020 Skedsmokorset | PGP Key: 0xE5E76831 Norway | RIPE handle: SS16503-RIPE ------------------------+----------------------------- msn messenger: | Facebook id: 638406636 [EMAIL PROTECTED] |
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