Our SMTP frontend crashed a lot this week, so the connection volumenumber is a lot more approximated than usual. Having said that, thisweek we:

• got 14,060 messages from 292 different IP addresses.
• handled 21,260 sessions from 1,496 different IP addresses.
• received over 183,239 connections; I'm not going to try to guessat the minimum number of different IP addresses.
• probably hit a highwater of 6 connections

A popular idea for dealing with 'malformed' HTML is to have the browserswarn users about it (the most recent example I've run across is incomments here ), onthe theory that this will cause authors to make their HTML validate.Unfortunately, doing this is about as useful as showing error pukes towebsite visitors, and for the same reason: it is reporting the problemto the wrong person.

Almost everyone visiting your site is a visitor, not the site's author.It follows that

Everything you never wanted to know about PKI but were forced to findout [PDF]by Peter Gutmann is a set of slides about just that: a pile of the wartsand issues with PKI in general and the SSL model in specific.If you're interested in the whole field, his home page has links to enough additionalpapers to keep you reading for some time.

(From Chris Samuel ,and that in turn from Russell Coker .)