Topic "managing frequent hostkey changes"

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foodieguy
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Joined: 2013-06-11
Posts: 1
Hi all,

I have a vendor that uses some kind of load balancer or hosted server solution and they frequently change servers/hostkeys with no notice. So my script breaks.

Is there a way to automate acceptance of the new hostkeys with no intervention? I use the -hostkey switch,

-hostkey="ssh-rsa 1024 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"

but it's not clear if you have to specify each hostkey. I'd like to accept whatever hostkey they give us, as we get them. Am I stuck with reacting to these unexpected changes each time?

If it helps, I use the winscp.exe and am on version 4.3.5

thx!
martin
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Site Admin
Joined: 2002-12-10
Posts: 24991
Location: Prague, Czechia
If there's a set of servers (load balanced), the best solution is to list all hostkeys in the script (semicolon separated in the -hostkey switch).

If you cannot get list of all hostkeys, you can use -hostkey=* with the latest beta version. But you give up any security by doing this. Make sure you understand the implications.

You should upgrade in any case.
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Martin Prikryl
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