Service DNS and NTP from FC6

John DeDourek dedourek at unb.ca
Thu Feb 22 17:11:49 UTC 2007


Bledsoe, Howard W. CIV (CNRNW) wrote:
>         We have a nice, new, clean install of Fedora Core 6 -- and want 
> to use it, among other things, as a DNS server and NTP source.  I can 
> verify from the console and from SSH sessions that the DNS does resolve 
> correctly, and the NTP daemon does operate correctly.  Both DNS and time 
> service do what they're supposed to with respect to the local computer.
> 
>         However, I am unable to get the box to 'serve' these services.  
> DNS inquiries and NTP inquiries seem to be ignored from both Windoze and 
> other (older) Red Hat boxes.  I have told the firewall to allow port 53 
> and 123 traffic -- and have even disabled the firewall completely (we 
> are not connected to the Internet).
> 
>         This appears as if the named and ntpd are not listening on their 
> designated ports.  Any idea on how I can verify that?  How can I make 
> this server serve?
> 
>                    TIA, Howard
> 
> -------------------------------------------
> Communications Project Manager,*/ Navy Region Northwest/*
> 
> 
Try
    netstat --udp -a
from a terminal window and see if indeed the processes are
listening at the appointed ports.  I don't run dns here, but
do run ntp.  You should see several lines indicating that
the ntp program is listening at port 123 (or "ntp") on each
of the interfaces in the machine.




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