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Comment Re:Spammer's delight? (Score 2, Interesting) 248

My ISP does it like this: outbound port 25 is blocked (probably inbound too, never tried) by default, you can use only their SMTP server. But if you need it, you can ask them to open it up for you, explaining shortly why you need it. The whole thing is done online, within their website. They specifically state there that if you're sending spam, they will block it again. Disclaimer: I'm in Europe, but I think such a solution would be legal even under the net neutrality act, and still prevent large amounts of spam from infected PCs. The approach seems right: if a user doesn't know what port 25 is, they probably don't need it. :)

Comment Re:We put an OS in your browser in your OS! (Score 1) 165

The easy one is the 'ssh on 443'. In our environment, we use authenticated proxies to get to the Internet, which also are doing SSL MITM attacks, ie terminating the client's ssl session on the proxy, inspecting the traffic, and then re-encrypting it to send out.

How do you prevent the user from getting an SSL security warning? Or they just know what's going on and have to deal with it...

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