<div dir="ltr">In addition, you can add a "-v" flag to the mosh-server command line to get extra debugging information. It will log a "Crypto exception" if it gets an invalid datagram.<br></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Wed, Dec 18, 2013 at 12:02 PM, Quentin Smith <span dir="ltr"><<a href="mailto:quentin@mit.edu" target="_blank">quentin@mit.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On platforms that support updating utmp, yes, the user's IP address is updated whenever the server detects a client IP change. (It's also updated when the server thinks the client is offline.)<span class="HOEnZb"><font color="#888888"><br>
<br>
--Quentin</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
On Wed, 18 Dec 2013, Jim Cheetham wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
What sort of logs are available from mosh-server? I'm particularly<br>
interested in being able to detect invalid attempts to talk to the<br>
server (more likely to be DoS than realistic attempts to guess the key),<br>
and also to track when a 'connected' user changed IP address<br>
successfully. Related to this, do we update utmp when a user's IP<br>
address changes, or only when it is initially connected?<br>
<br>
-jim<br>
-- <br>
Jim Cheetham, Information Security, University of Otago, Dunedin, N.Z.<br>
✉ <a href="mailto:jim.cheetham@otago.ac.nz" target="_blank">jim.cheetham@otago.ac.nz</a> ☏ <a href="tel:%2B64%203%20470%204670" value="+6434704670" target="_blank">+64 3 470 4670</a> ☏ m <a href="tel:%2B64%2021%20227%200015" value="+64212270015" target="_blank">+64 21 227 0015</a><br>
⚷ OpenPGP: B50F BE3B D49B 3A8A 9CC3 8966 9374 82CD C982 0605<br>
</blockquote>
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