Re: ssh and dhcp interactions?



"TH" == Tom Horsley <tomhorsley@xxxxxxxxxxx> writes:

TH> I'm wondering if I'll have ssh complaining about hostkeys if I
TH> boot up servers with IP addresses assigned from a pool by DHCP?

TH> The reason I wonder is that examination of a typical
TH> ~/.ssh/known_hosts file shows each line has a name and an IP addr.

TH> If the IP addr is different the next time I talk to the machine
TH> with that name is it gonna complain? Or want me to add a new
TH> known_hosts entry with the new name,ip pair? Or complain that some
TH> other machine had that IP the last time it recorded an entry?

TH> I'm just trying to figure out how much trouble getting away from
TH> static IPs might get me into before I find myself sinking in the
TH> swamp :-).

TH> Thanks for any info you can provide.

Set "CheckHostIP no" in ~/.ssh/config to have SSH ignore the server's IP
address during server authentication.

--
Richard Silverman
res@xxxxxxxx

.



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