Presence and IntComm WG

[Jesse Thompson <>]

Yes, definitely check SRV records.  We host 21 jabber domains, and there 
are other jabber services on our campus run by departments.  Which means 
that 1 school's numbers alone boosts the original 49 count by almost 50%.

> dig +short jabber.wisc.edu
> dig +short xmpp.wisc.edu
> dig +short SRV _xmpp-server._tcp.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.admissions.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.bus.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.cals.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.doit.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.em.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.glbrc.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.hd.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.honors.ls.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.journalism.wisc.edu
> dig +short SRV _xmpp-server._tcp.library.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.mailplus.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.ocpd.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.odos.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.pharmacy.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.provost.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.show.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.wbi.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.wcer.wisc.edu
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.wiscnet.net
5 0 5269 xmpp.wiscmail.wisc.edu.
> dig +short SRV _xmpp-server._tcp.wsum.org
5 0 5269 xmpp.wiscmail.wisc.edu.

On 06/22/2010 01:50 PM, Shumon Huque wrote:
> 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

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