Is it possible to configure a sub domain in which the name of this sub domain is same as a server of it's parent domain? e.g. A sub domain "sub.example.com" is configured using a zone file and there is also a "A" record, "sub" in "example.com" zone file.
Yes, you can have a sub-domain such as sub.example.com but you don't need to associate an "A" record with it.
You can add sub-domain delegations with the following type of command in the db.example.com zone file
Then, create a db.sub.example.com zone file which contains the names of servers in the sub.example.com sub-domain (the same as you would as if they were part of example.com).
Add your sub-domain to your conf file. Example, if you have in your named.conf
then in your conf.example.com file, you would need to list both the main zone
AND your sub-domains
All you are really doing is splitting it up to make it easier for you - DNS could have it all in one file with no issues.
i have the DNS and the web proxy services running on one of my sun machines....the funny thing is clients use the proxy server by addressing it with its IP address only....what i need is to assign it like...proxy.amu.edu.et......
my guess is the problem is the configuration with the DNS ...but i... (2 Replies)
I'm trying to configure DNS on a AIX 5.4 machine and I just can't figure it out. The IBM guide doesn't work. Smit also doesn't work. I have no idea how to make this happen. (2 Replies)
Hi All,
I have a list of few DNS server with hostnmae and IP which I need to setup in Solaris Servers...Can any one pls tell me the steps for setting up the above in solaris 10 & 9???? (4 Replies)
Dear All I want to configure DNS in redhat linux. i am following these steps but when i restart the services it is showing status failed. Please any body can help me on urgent basis.
#service named restart
Stopping named:
Starting named:
---------Edited in named.conf... (2 Replies)
Hi to all.
Sorry for my bad english.
For pure self-educational, not professional, purposes, I am studying how to configure a server with several services operating on it.
For my experiment I'm using VirtualBox 3.1.4 on a WinXP host with 3 FreeBSD guests; one acts as a DHCP + DNS server; the... (0 Replies)
Hello All,
I want to install ORACLE RAC on AIX 6.1.
In the installation guide. the below two points were mentioned:
Each node must have at least two network adapters or network interface cards
(NICs): one for the public network interface, and one for the private network
interface (the... (2 Replies)
Hello fellow unix dudes, I have a question on DNS.
Basically the error is my domain.com server can not send email to my
mail.domain.com server.
I have a virtual server with one IP say 192.10.11.12 and a mail server with
iP 172.4.5.6
When the virutal server on ip 192.10.11.12 was setup,... (0 Replies)
I wanted to know how to configure DNS configuration for RHEL 5.
I hope, my query is clear of how to setup DNS for RHEL 5.
Please revert with the reply to my query
Regards (6 Replies)
Hello to all,
May someone help me with this DNS configuration issue please.
I have configured wildcard to different IPs like below and it works.
xyz IN SOA dns.abcd. . (
2014120901
10800
3600
604800
... (0 Replies)
Discussion started by: Ophiuchus
0 Replies
LEARN ABOUT MOJAVE
mail::dkim::dns5.18
Mail::DKIM::DNS(3) User Contributed Perl Documentation Mail::DKIM::DNS(3)NAME
Mail::DKIM::DNS - performs DNS queries for Mail::DKIM
DESCRIPTION
This is the module that performs DNS queries for Mail::DKIM.
CONFIGURATION
This module has a couple configuration settings that the caller may want to use to customize the behavior of this module.
$Mail::DKIM::DNS::TIMEOUT
This global variable specifies the maximum amount of time (in seconds) to wait for a single DNS query to complete. The default is 10.
Mail::DKIM::DNS::resolver()
Use this global subroutine to get or replace the instance of Net::DNS::Resolver that Mail::DKIM uses. If set to undef (the default), then a
brand new default instance of Net::DNS::Resolver will be created the first time a DNS query is needed.
You will call this subroutine if you want to specify non-default options to Net::DNS::Resolver, such as different timeouts, or to enable
use of a persistent socket. For example:
# first, construct a custom DNS resolver
my $res = Net::DNS::Resolver->new(
udp_timeout => 3, tcp_timeout => 3, retry => 2,
);
$res->udppacketsize(1240);
$res->persistent_udp(1);
# then, tell Mail::DKIM to use this resolver
Mail::DKIM::DNS::resolver($res);
Mail::DKIM::DNS::enable_EDNS0()
This is a convenience subroutine that will construct an appropriate DNS resolver that uses EDNS0 (Extension mechanisms for DNS) to support
large DNS replies, and configure Mail::DKIM to use it. (As such, it should NOT be used in conjunction with the resolver() subroutine
described above.)
Mail::DKIM::DNS::enable_EDNS0();
Use of EDNS0 is recommended, since it reduces the need for falling back to TCP when dealing with large DNS packets. However, it is not
enabled by default because some Internet firewalls which do deep inspection of packets are not able to process EDNS0-enabled packets. When
there is a firewall on a path to a DNS resolver, the EDNS0 feature should be specifically tested before enabling.
AUTHOR
Jason Long, <jlong@messiah.edu>
COPYRIGHT AND LICENSE
Copyright (C) 2006-2007, 2012-2013 by Messiah College
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or,
at your option, any later version of Perl 5 you may have available.
perl v5.18.2 2013-02-07 Mail::DKIM::DNS(3)