We need to change the hostname of a 6500 series router running native IOS. After changing the hostname, should we also regenerate our SSH/RSA keys? If we don't regenerate the keys, will this cause any problems?
I believe changing the hostname causes SSH to break on a PIX, but changing the hostname did not seem to break SSH on a test IOS box.
Re: Does Changing Hostname Require New SSH/RSA Keys?
Heh. 2 answers, 2 opposite experiences. I think there may not be one definite answer to this, but it seems like a best practice to regenerate the keys when changing the hostname. That way, all the bases are covered.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...