[AG-DEV] About Text Service

[Christoph Willing]

On 14/06/2008, at 12:02 AM, lester leong wrote:

> Hi All,
>
> Like Luis, I managed to set up Jabber Server ( Jabberd-1.4.4) and  
> edited the VenueServer.cfg file. However, when I launch the Venue  
> Client and join a venue, I get the following error:
[snip]
>
>   File "/usr/lib/python2.4/site-packages/gov/lbl/dsd/bajjer/ 
> ssl.py", line 112, in send
>     bytes = self._ssl.send(data)
> Error: [('SSL routines', 'SSL23_GET_SERVER_HELLO', 'unknown  
> protocol')]


Lester,

This error may be due to incorrect jabber server certificate  
configuration (or possibly the certificate itself). To work with the  
VenueClient correctly, the jabber server needs an SSL certificate  
(not necessarily and AG certificate).

The jabber.xml configuration file needs to include the location of  
the certificate and it also needs to correct entries to tell the  
jabber server how to use it - there are two areas in the jabber.xml  
file that need attention:

1. in the c2s (client to server) service area, you'll need an  
uncommented line with:
	<tls port='5223'>0.0.0.0</tls>
which tells the server to accept input from any external host at port  
5223. I mention "uncommented" here because the configuration file is  
quite cluttered and its easy not to notice that a line is actually  
commented out and therefore have no effect.

2. in the tls area, you need to specify the credentials to be used -  
something like this:
     <credentials>
         <default/>
         <pem>/etc/jabberd/ssl.pem</pem>
     </credentials>
which tells the server to use the certificate found at /etc/jabberd/ 
ssl.pem


One other thing, you may find it easier to use a different jabber  
client while you're troubleshooting your jabber server. Use something  
like Pidgin to set up a new account at your server using port 5223.  
On my Pidgin client there's a checkbox marked "Force old (port 5223)  
SSL" as well as a "Connect port:" entry in which to insert "5223". If  
that works, then the VenueClient will work.


chris


Christoph Willing                        +617 3365 8350
QCIF Access Grid Manager
University of Queensland