[ale] Weird ssh problem

[Ben Coleman]

Through Fiverr, we've got a Vietnamese developer doing some web work for 
us.  I've set up an Ubuntu 24.04 server to host the web sites he'll be 
working on.

Problem is, he can't ssh in to the servers.  For example, I've given him 
a simeon@<hostname> account, and I can log into it just fine.  When he 
tries to ssh in, in the auth.log I see 'Failed none for invalid user 
simeon@<hostname>'.  The fact that I do see his attempts on my server 
tells me the host name is correct.  Thing is, I do have a simeon user on 
the server, and as I said, I can ssh into it from my machine.  He's 
using both putty and filezilla to try to ssh in.  We've tried the same 
thing using another account on the server (one for one of the web sites) 
and we get the same error.

The only thing I can think of so far is that somehow his end might be 
inserting into the username part of the ssh target a character that 
isn't showing up in the logs.  But I'm not sure what would cause that, 
nor, of course, how to fix it.

Anyone got any ideas on this?

Ben
-- 
Ben Coleman oloryn at benshome.net | For the wise man, doing right trumps
http://oloryn.benshome.net/     | looking right.  For the fool, looking
Amateur Radio NJ8J              | right trumps doing right.