The dig command


 
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Old 05-06-2011
The dig command

Can I use two different DNS servers in the one command in the form of primary and secondary.

Take this for example:
dig @<primaryAddress> @<secondaryAddress> MX domain.tld

So if primary address is down, it will use the secondary address as a backup. It seems to work when testing, but thought I'd ask around to see if there is any problems with it (since it doesn't exactly specific you can do it like this in the man pages).

Thanks.
 
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bindsetup(8)						      System Manager's Manual						      bindsetup(8)

Name
       bindsetup - set up the Berkeley Internet Name Domain (BIND)/Hesiod service

Syntax
       /usr/etc/bindsetup [ -c [ -d directory ] -b binddomain  name1,IP1 name2,IP2 ...	]

Description
       The command sets up the Berkeley Internet Name Domain (BIND)/Hesiod service on your system and places and resolution under BIND/Hesiod con-
       trol.  You can use this command to set up your system as a primary, secondary, slave, or caching server, or as a client.

       In order to run BIND/Hesiod, your system's host name must include the BIND domain name.	The BIND host name consists of the local host name
       plus  the  BIND	domain	name,  separated by periods.  For example, the BIND host name for a system whose local host name is and whose BIND
       domain name is is

       The command edits the and files and changes the local host name to the BIND host name, if it is not there already.

       If the command changes your system's host name, you should reboot the system to be sure that the change is propagated throughout  the  sys-
       tem.

       Before  you  run , your system must be established on a local area network.  In addition, you must know the BIND domain name for your local
       area network, and whether your system will be a primary, secondary, slave, or caching server, or a client.

       The command asks if you want to run a Kerberos authentication server. You must already have set up Kerberos to do do.   For  more  informa-
       tion, see the Guide to Kerberos.

       You should run the command as superuser and with the system in multiuser mode.

       If you use the option with the respective arguments, the command sets up your system as a BIND/Hesiod client non-interactively.

       If you run the command with no arguments, a menu is displayed giving you a choice of responses.	You are then prompted for further informa-
       tion.  Before exits, it lists the files that have been updated.

       Once BIND/Hesiod is installed on a machine, it cannot be used until the file is modified to contain BIND entries on  the  desired  database
       lines.  The command reminds a user to run or edit the file manually.

Options
       -c	    Sets up your system as a BIND/Hesiod client according to the following arguments you supply on the command line:

       -d   directory
		    This  option and argument are required if you are setting up a diskless client from the diskless server.  The directory is the
		    full path name of the root directory for your system (a diskless client) on the diskless server.  The following is an  example
		    of a root directory for a diskless client named
		    /dlclient0/orange.root

       -b   binddomain
		    This is the name of the BIND domain on which your system will be a BIND client.  For example, is a sample BIND domain name.

       name,IP	    This is the host name and the IP address of the BIND server on the domain, for example You can specify one or more BIND server
		    by listing more name,IP arguments, each separated by a space.

Files
       List of locally maintained host names and IP addresses

       Startup commands pertinent to a specific system

       Database name with the selected naming services

       Hesiod configuration file

       List of Kerberos servers

       Default BIND Files:

       BIND server data file directory

       BIND server boot file

       BIND server cache file

       BIND server local host reverse address host file

       BIND primary server hosts file

       BIND primary server reverse address hosts file

       BIND data file

See Also
       nslookup(1), hesiod(3), hesiod.conf(5), svc.conf(5), svcsetup(8), named(8), krb.conf(5), resolv.conf(5)
       Guide to the BIND/Hesiod Service
       Guide to Kerberos

																      bindsetup(8)