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Full Discussion: The dig command
Special Forums IP Networking The dig command Post 302520371 by neil_is_ere on Friday 6th of May 2011 04:48:40 PM
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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MEMBERS(1)						      General Commands Manual							MEMBERS(1)

NAME
members - outputs members of a group SYNOPSIS
members groupname DESCRIPTION
This manual page documents briefly the members commands. This manual page was written for the Debian GNU/Linux distribution. members is a program that sends a space-separated list of secondary member names to its standard output. OPTIONS
The programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. -a, --all Show all group members on one line. This is the default. -p, --primary Show only primary group members. -s, --secondary Show only secondary group members. -t, --two-lines Send two lines to standard output. First line is primary members, second line is secondary members. NOTE: This always displays two lines, even if there are no members at all. -h, --help Show summary of options. DIAGNOSTICS
Exit status is 0 (i.e. "success") if the group was found, and 1 (i.e., "failure") if the group was not found. Technically, the exit status hinges on the output of getgrnam(3) as follows: if getgrnam(3) returns a null pointer, the exit status is 1, and 0 otherwise. BUGS
I don't know of any! If you find one, please let me know! SEE ALSO
groups(1) AUTHOR
This manual page was written by Jim Lynch <jim@laney.edu>, for the Debian GNU/Linux system (but may be used by others). MEMBERS(1)
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