One of our email recipients has 17 mx records, and our emailing program postfix on linux does not retrieve these records. When using dig, the same thing happens.
This command returns no mx records
But when using +trace, the records get returned
The question is whether there is a setting we can make to make the standard mx lookup work properly.
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... (1 Reply)
Hi All,
Can please let me know what is the difference between the single line mode and multi line mode in regular expresions?
Thanks,
Chidhambaram B (3 Replies)
Hi,
I have these entries in the /etc/esolv.conf:
------------
domain xxxxxx
search yyyyyy
nameserver 127.0.0.1
nameserver aaaaaaaaaaaaaaaa
nameserver bbbbbbbbbbbbbbbb
-------------
When I use 'dig' or 'nslookup' command, like 'dig yahoo.com' it uses the localhost as the server.
I... (2 Replies)
I am relatively new to this forum and Unix scripting.
ksh script:
part 1 :will call a PL\SQL program will create 3 CSV file at the unix directory.
part 2 : will sftp the files to the EFT server.
Once the EFT server receives these file , it will transfer them to a shared windows folders.
... (3 Replies)
Dear All,
I want to get all the IPs of the A RECORDS for mail.google.com.
The aim is to deny access to these IPs.
I learnt that mail.google.com has several IPs.
I did the following steps:
1. whois google.com
2. I got the following as its DOMAIN SERVERS:
3.# dig @ns1.google.com a... (1 Reply)
Hey everyone,
Okay, so I've been having some fun with the dig command, and wanted to dig my old school. Two questions came up from this. So I:
dig @8.8.8.8 +recurse njcu.edu ANY
and the result is about 8 records, including the SOA record. One of them is this weird TXT record, and the other is... (1 Reply)
Hi,
I am testing some code to match a grep to see if one of the dns server exists but it does not seem to match:
ERROR:
=======
CRITICAL: google.com DNS : ns3.google.com NOT found
CODE:
=====
if ; then
echo "OK: google.com DNS : ns3.google.com exists"
else
echo... (5 Replies)
Hi there, I'm currently working on an exercise to connect to a Windows iscsi target via a Red Hat initiator machine. I'm using Windows Server 2012 and Red Hat Enterprise Linux v7.1
I have created the target on the Windows Server box and the two devices can communicate with each other. Verified... (3 Replies)
Discussion started by: Tech87
3 Replies
LEARN ABOUT DEBIAN
dns_tree
dns_browse(1) General Commands Manual dns_browse(1)NAME
dns_tree -- command-line frontend to dig
SYNOPSIS
dns_tree [-f] [-v] [-d] [-t TYPE] [-m MATCH] DNS_domain
DESCRIPTION
This manual page documents briefly the dns_tree command.
This manual page was written for the Debian distribution because the original program does not have a manual page.
dns_tree is a program that works as a front-end to dig. Given a specific domain dns_tree will make several dig invocations to fetch a
zone and it will format the output in in a somewhat sensible hierarchical style (a tree).
Information extracted from the DNS relies on being possible to fetch a zone through a zone transfer. If the DNS servers for the requested
domain do not allow file transfers dns_tree will not be able to obtain information from the zone.
All data obtain is cached in ~/.DNS_BROWSE with an approximation of the usual DNS caching rules. Remove all files in that directory to
prematurely flush the cache.
OPTIONS
A summary of options is included below.
-t TYPE Show only records of TYPE. This argument can be repeated to indicate multiple types. Use the "all" type to print all the known
types.
-m MATCH Show only records in which the first component matches the PERL regexpt MATCH.
-h Show summary of options.
-v Enable verbose mode. All DNS requests are printed in the standard error.
-d Enable debug output. Presents internal information of the program
-f Override warnings (force).
SEE ALSO
dig (1), dns_browse (1), perlrequick (1).
AUTHOR
This manual page was written by Javier Fernandez-Sanguino jfs@debian.org for the Debian system (and may be used by others). Permission is
granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version pub-
lished by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.
dns_browse(1)