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 Post subject: Chatproblems with AOL as Provider
PostPosted: Tue Nov 22, 2005 08:58 
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Joined: Fri Aug 27, 2004 13:05
Posts: 152
Hi,

an user has Problems with the ILIAS Chat while getting online with AOL. This is the error message:

Quote:
web site nicht verfügbar, kommt immer ALS NACHRICHT FEHLER
NR; 502 und 504


Does anybody has an answer?

Thanks,

Mark


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 Post subject:
PostPosted: Tue Nov 22, 2005 10:32 
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Mitglied ILIAS open source e-Learning e. V.

Joined: Wed May 08, 2002 02:00
Posts: 125
Hi Mark,

AOL uses a transparent proxy for connecting their users to the internet.
This proxy does not forward open socket connection to ports others than e.g 80 or 443.

I you have the possibility to run the server on port 80 or 443 whith its own IP, this would solve the problem.

Regards Stefan


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 Post subject:
PostPosted: Thu Nov 24, 2005 09:47 
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Joined: Fri Aug 27, 2004 13:05
Posts: 152
Hi Stefan,

thanks for your answer.

But won´t there be a conflict between apache and the chat port?

greetz,

Mark


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 Post subject:
PostPosted: Thu Nov 24, 2005 10:49 
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Mitglied ILIAS open source e-Learning e. V.

Joined: Wed May 08, 2002 02:00
Posts: 125
Hi Mark,

Quote:
But won´t there be a conflict between apache and the chat port?


Not, if you assign the chatserver to a second IP:
E.g
- Using 192.168.1.3:80 for Apache
- and 192.168.1.4:80 for the chatserver on the same host.

Regards Stefan


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 Post subject:
PostPosted: Thu Nov 24, 2005 11:03 
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Joined: Fri Aug 27, 2004 13:05
Posts: 152
Hi Stefan,

but in this case I need a second network card with a second IP ?????

Regards,

Mark


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 Post subject:
PostPosted: Thu Nov 24, 2005 11:47 
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Mitglied ILIAS open source e-Learning e. V.

Joined: Wed May 08, 2002 02:00
Posts: 125
Hi Mark,

Quote:
but in this case I need a second network card with a second IP ?????

A second network card is not really necessary, because you can listen to multiple IPs using virtual network interfaces.
Code:
ifconfig eth0:1 up 192.168.1.4 255.255.255.0


But your router must be able to make DNAT per IP (maybe that will be the problem). And you definately need a second official IP.

Regards Stefan[/code]


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 Post subject:
PostPosted: Wed Dec 21, 2005 22:40 
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Joined: Fri Aug 27, 2004 13:05
Posts: 152
Hi Stefan,

now I got the following error message:

Code:
ServerMain java.net.BindException: Address already in use


What now?

I have split the apache via the virtual hosts. One for the native and one for the virtual IP.

No way.

Any suggestions?

Thanks a lot,

Mark


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 Post subject:
PostPosted: Thu Dec 22, 2005 10:35 
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Mitglied ILIAS open source e-Learning e. V.

Joined: Wed May 08, 2002 02:00
Posts: 125
Hi Mark,

if apache is listening on 192.168.1.1:80 you can bind the chat server to 192.168.1.2:6678.
For doing that choose the following configuration in the server.ini:

Code:
LogLevel = 6
LogFile = /var/log/ilias_chatserver.log
IpAddress= 192.168.1.2
Port = 6678
HeaderFileName = {PATH_TO}/header.html
FooterFileName = {PATH_TO}/footer.html
Authentication = 1
ConnectionsFrom = 192.168.1.1


Restart the chatserver. If you still receive messages like 'Address already in use' use 'ps -ax' to check if a chat server is already running. If yes, kill that process.

Regards Stefan


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 Post subject:
PostPosted: Tue Dec 27, 2005 16:56 
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Joined: Fri Aug 27, 2004 13:05
Posts: 152
Hi Stefan,

this is not the problem. But at least I solved it:

You told me to bind the chat on a second IP Adress on port 80 or 443 so that AOL Users wolud be able to chat, too.

So I took a second IP Adress as a virtual alias (SuSE 9.2). But now Apache listens to both IP Adresses. The reason has been, that I have to comment the line in the httpd.conf where ssl listens to the port 80.

Code:
<IfDefine SSL>
# Listen 80
Listen 443
</IfDefine>


After this I could bind Apache to the origin IP Adress via Listen.

Now the chat listens to the virtual IP on port 80 and I hope that even AOL Users would be able to chat.

Thanks,

Mark


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 Post subject:
PostPosted: Tue Jan 31, 2006 09:39 
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Joined: Fri Aug 27, 2004 13:05
Posts: 152
Hallo,

sorry, jetzt in deutsch, das wird mir für mein miserables Englisch zu heikel:

Mittlerweile habe ich Feedback von zwei AOL Nutzern bekommen. Es hat nicht funktioniert! Ich habe alles so gemacht, wie oben beschrieben. Der Chat lauscht auf einer anderen IP-Adresse auf Port 80. Aber es klappt nicht :(

Vielleicht noch eine Idee?!?!!?

Vielen Dank,

Mark


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