Presence and IntComm WG

[Shumon Huque <>]

Jorj, Tim,

You might want to also check xmpp SRV records at the
institution's domain name, which might find more, eg.
vt.edu's IM server can be discovered with:

$ dig _xmpp-client._tcp.vt.edu SRV

;; QUESTION SECTION:
;_xmpp-client._tcp.vt.edu.      IN      SRV

;; ANSWER SECTION:
_xmpp-client._tcp.vt.edu. 14400 IN      SRV     10 0 5222 im.vt.edu.

This presumes of course that the campus jabber realm is
the same as their domain name, which is probably not
universally true.

--Shumon.

On 6/22/10 11:58 AM, Callahan, Tim wrote:
> Thanks Jorj, that's great! That's certainly enough to get us going.
>
> After we're done with that list, here's another idea ...
> I noticed my old friends at Virginia Tech aren't on the list, so I was 
> curious about their server naming convention:
> http://computing.vt.edu/vtim.htm
>
> Their server is "im.vt.edu", so another search for im.<domain>  may be 
> useful, but results would have to be parsed for non-jabber services (can we run a bulk 
> service discovery against a list of servers?)
>
> Snippet from their page:
> "VT IM is based on the open source Jabber protocol...
> Server/Host Name: im.vt.edu
> User/User Name: 
> [PID]@im.vt.edu
> ...Security: Use TLS encryption. If this is not available, use SSL encryption. If 
> asked for a port number, enter 5222 or 5223."
>
> This also reminds me of something I was thinking of after the last call: as we follow 
> up with institutions, we should include "What's your naming convention" in 
> the questions.  We were already considering security questions, but we should also ask 
> if they have secure client-server connections, and what type.
>
> Another survey question off the cuff - "are you member of a federated 
> identity group/InCommon/Are you Shibbolized/etc; are you interested in federated 
> IM (and perhaps why?)
> -Tim
>
> -----Original Message-----
> From: 
>
>  
> [mailto:]
>  On Behalf Of Jorj Bauer
> Sent: Tuesday, June 22, 2010 11:03 AM
> To: 
>
> Subject: [wg-pic] Higher Eds using jabber
>
> I'm piggybacking off of Mark Prior's IPv6 work for a quick list of institutions to scan. 
> Just looking at DNS (not checking to see service availability state), I found 49 
> jabber.<domain>  registered hostnames and 4 xmpp.<domain>  registered 
> hostnames in .edu (and some country-specific edus, such as edu.au). Overall, that's 15% 
> of the edus scanned. (One has both an xmpp and jabber hostname.)
>
> Mark's work (http://www.mrp.net/IPv6_Survey.html) goes outside of the Internet2 membership a bit. 
> I've run against his whole list, and the overall stats are 207 jabber.<domain>  and 88 
> xmpp.<domain>  - 24.5% of the domains scanned. (This is a bit skewed, as 79 organizations have 
> both an xmpp.<domain>  and a jabber.<domain>.)
>
> -- Jorj