posted by [identity profile] rfunk.livejournal.com at 12:50am on 09/03/2008
Well first, you have a lot of questionable conditions there, such as "competent sysadmins". :-)
Second, you have to define "anyone". There are certainly holes that are unknown to the good guys, but known to the bad guys.

Also, going back to your earlier question, it's not always possible to limit the number of logins, depending on the protocol being used.

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