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Re: Network time protocol



On Tue, Sep 19, 2000 at 02:20:27AM +0900, Stephen J. Turnbull wrote:
> >>>>> "Scott" == Scott M Stone <sstone@example.com> writes:
> 
>     Scott> hm, an "ntpdate -d clock.nc.fukuoka-u.ac.jp" from my
>     Scott> systems here returned " no server suitable for
>     Scott> synchronization found "....
> 
> Aaaaaaaaaarrrrrrrrgh!
> 
> Hosed again by the firewall.  Thus spake Beavis: 原則としてUDPサービ
> スは使えません。  NTP is a UDP client.  :-(

Oh, wow.  That could be a really nasty gotcha.  Is ntpd considered a
significant security risk?  That is, is it something that should be kept off
of the firewall itself?  (Or is this naive -- should _everything_ be kept
off of the firewall itself ... ?)

Frank "Youth Wants to Know" Bennett
Nagoya U

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