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Trying to understand the output #114
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OK so here is an example: nordoff-robbins.org.uk Comes back ok with a normal "dig": dig nordoff-robbins.org.uk +short | paste -d " " - - - Yet with massdns, it doesn't include it in the results. However, when I try again with just that one domain, it works:
Am I doing something wrong? Is there a "retry" rate, where it will try x number of times? |
I would recommend you confirm that the resolvers you're using are in-fact public recursive resolvers. All of them. When troubleshooting, use
The latter case should work itself out after a few sessions, especially if your resolvers.lst is small and/or you're using I can tell you with certainty the problem is not with massdns. My suggestions for you:
Also, as a general tip, when using For an accurate reproduction of the above, you should use this, it will test each one of your resolvers
Using this short loop alone may reveal that you have a bad resolver in your list Of course, it will not reproduce the load that you're producing when using |
Hi,
Thanks for this cool program :) I was trying to do a "dig" for each domain manually, and it was bloomin slow. So I'm using:
./massdns/bin/massdns -r massdns/lists/resolvers.txt -o S -t A massdns/domains-to-do.txt > results.txt
Which finishes with:
My file has 239,005 domains in - but I see quite a lot of SERVEFAIL and NXDOMAIN errors (over 9k of them). What do those mean? I'm going to run a test to compare what is outputted, vs what I'm passing in - but the outputted results.txt file is only 229,641 lines, which makes me think quite a few are missing - especially when a lot of domains have multiple lines:
Thanks in advance!
Andy
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