Re: reverse mapping -- POSSIBLE BREAK-IN ATTEMPT


In sshd_config, "UseDNS no".

"I" == Ignoramus21592 <ignoramus21592@xxxxxxxxxxxxxxxxxxxx> writes:

I> I am doing ssh from one host A, which I control, to another host B,
I> which I also control. Nothing has been compromised.

I> When I do ssh from A to B, I get this error message:

I> reverse mapping checking getaddrinfo for Z failed - POSSIBLE
I> BREAK-IN ATTEMPT!

I> (A, B and Z are used instead of actual host names to protect
I> privacy).

I> This seems to be a simple issue of host B having a wrong reverse IP
I> resolution (provided by my ISP authority record) that maps the IP
I> of B to Z instead of B. And SSH does this paranoid check of reverse
I> of B and complains since it finds that B is not B but Z.

I> I have no desire to waste time talking to my ISP begging them to
I> set up reverse resolution etc.

I> I just want SSH to stop complaining about this error.

I> I did google a lot about this message, and it seems that almost
I> everyone making comments on this has NO CLUE. (as they talk about
I> hackers, brute force attacks etc).

I> So, I would like to hear from someone WITH A CLUE as to what SSH
I> option to set as to get rid of this warning.

I> Thank you.

I> i

--
Richard Silverman
res@xxxxxxxx

.

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