DelphinusDNS Blog

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Tomorrows snapshot should fix TSIG with dddctl

October 10th, 2019

Before tonights snapshot, a 'dddctl query' AXFR was able to authenticate with TSIG. But it wasn't able to verify what came back with TSIG. Now it can. and I can only test it so much because I don't know how to MITM in a quick enough time. TSIG is explained in RFC 2845. It stands for "This #### Is Good!". I'm very happy, as the routines I changed pave the way for slave server mode.

comment from Peter J. Philipp at Fri, 11 Oct 2019 06:51:06 +0000(1570776666)

I loaded a new binary from last nights snapshot on and tested this on the zone and it worked perfectly. I'm very happy.

comment from Peter J. Philipp at Sun, 13 Oct 2019 16:44:51 +0000(1570985091)

I found a bug with this when it tries to AXFR from an nsd master. I have a patch ready and will likely commit it tomorrow.

comment from Peter J. Philipp at Mon, 14 Oct 2019 18:15:46 +0000(1571076946)

I have created a MITM which was very simple with the divert(4) manpage which has sample code. I was able to modify the packet in-flight with a stray 'A' character. The TSIG algorithm warned that there was an error. This is what I wanted.


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