About this blog…

I am employed by Netnod as head of engineering, research and development and am among other things chair of the Security and Stability Advisory Committee at ICANN. You can find CV and photos of me at this page.

As I wear so many hats, I find it being necessary to somewhere express my personal view on things. This is the location where that happens. Postings on this blog, or at Facebook, Twitter etc, falls under this policy.

The views expressed on this post are mine and do not necessarily reflect the views of Netnod or any other of the organisations I have connections to.

Is this Internet access?

As part of my ongoing fight to get people to announce what they sell, I once again encountered a very bad product. This time KPN in Amsterdam, their wireless network at Amsterdam Arena.

After connecting to the wifi, and paying bucks to get access, I still do not get access. Or what do you think about the following?

# telnet mail.frobbit.se 25
Connected to mail.frobbit.se.
Escape character is '^]'.
220 hotmail1.netcop.nl ESMTP Postfix
221 Bye
Connection closed by foreign host.

If one have a look at the page that include information on what they sell, they claim the following:

Everything you do at home or in the office on the internet, you can do via HotSpots – email, instant messaging, download music, even make telephone calls.

Updated: In a comment I got information about using submission over port 587, something I of course use. I did though find it problematic in a short blog post talk about the real problem I had. I was underestimating the clue of my readers :-) The real problem I had was that I found that port 993 was blocked (IMAP over SSL). After checking and finding that some more ports where blocked, I got tired. Solved the problem by opening an IPSEC tunnel out to an endpoint of the IPSEC tunnel that I know what environment it is in.

To some degree, I find blocking be more fair than hijacking the connection (as you see above regarding the SMTP connection). Hijacked connections are much harder to debug.

# telnet mail.frobbit.se 993
Connected to mail.frobbit.se.
Escape character is '^]'.
^CConnection closed by foreign host.

Regarding blocking port 25, that of course I understand. But I do not understand hijacking the connection. Specifically without any information about it in the FAQ or documentation I can access before I pay. I will check port 587 when I have torn down the IPSEC tunnel…

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