nanog mailing list archives

Re: Update to BCP-38?


From: "Valdis Klētnieks" <valdis.kletnieks () vt edu>
Date: Tue, 08 Oct 2019 15:17:59 -0400

On Tue, 08 Oct 2019 11:53:33 -0600, "Keith Medcalf" said:

So while the cost of doing the thing may be near-zero, it is not zero.

And in fact, there's more than just the costs of doing it. There's also the costs
of having done it.

Obfuscating your OpenSSH versions is a *really* good way to make your security
scanners that flag backleveled systems fail to flag the systems.

Which can cause a really uncomfortable conversation with the CIO about why the
local newspaper's front page is running a story about how your organization got
totally pwned via a backleveled OpenSSH on one cluster of 5 servers.....

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