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Top Forums UNIX for Advanced & Expert Users bind 9 forwarders: use UDP or TCP? Post 302421983 by honglus on Monday 17th of May 2010 08:19:43 AM
Old 05-17-2010
bind 9 forwarders: use UDP or TCP?

I use forwarders for a subzone, but TCP 53 is blocked, So does forwarders really need TCP?
If forwaders use UDP, I can't get following scenario to work:
main zone is master, but subzone is forwad. Is it possible?
(On name sever itself, resolution of xx.stub.abc.com worked fine.)

Code:
 
#sub zone
zone "stub.abc.com" {
 type forward;
 forward only;
 forwarders { 1.1.1.1; };
};
 
#main zone
zone "abc.com" {
 type master;
 ...
};

 

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nsd-xfer(8)                                                         nsd 3.2.12                                                         nsd-xfer(8)

NAME
nsd-xfer - AXFR client to transfer zones from a name server SYNOPSIS
nsd-xfer [-4] [-6] [-a address[@port]] [-p port] [-s serial] [-T tsiginfo] [-v] -z zone -f file servers DESCRIPTION
Nsd-xfer is program to transfer zones from a name server using AXFR. NSD is a complete implementation of an authoritative DNS nameserver. OPTIONS
-4 Only send to IPv4 addresses. -6 Only send to IPv6 addresses. -a address[@port] Specify the source address (and port) to send from. -f file The file to store the zone in. -p port Specify the port to send to. -s serial Specify the serial of the current zone. The zone is only transferred if the master server has a zone with a greater serial number. -T tsiginfo Use TSIG to verify the zone transfer. The tsiginfo file must contain the TSIG key information. The file is removed upon successful reading of the key. The format of the tsiginfo file is described in the doc/README file (section 3.3). -v Be more verbose. -z zone Specify the zone to receive. servers List of nameservers to try. EXAMPLES
To run this program the standard way type: # nsd-xfer -z foobar.cz -f foobar.cz.zone 1.2.3.4 SEE ALSO
nsd(8), nsdc(8), nsd.conf(5), nsd-checkconf(8), nsd-notify(8), nsd-patch(8), zonec(8) AUTHORS
NSD was written by NLnet Labs and RIPE NCC joint team. Please see CREDITS file in the distribution for further details. NLnet Labs jul 19, 2012 nsd-xfer(8)
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