[jdev] pub/sub and multi-user chat

Pedro Melo melo at co.sapo.pt
Fri Dec 14 15:19:27 CST 2007

On Dec 14, 2007, at 2:40 AM, Patrick Logan wrote:

> Pub/sub may be an obvious mechanism for propagating events or any
> messages among systems, i.e. where there is no direct human
> participation in the network.
> Does anyone have interesting cases where something like multi-user
> chat was used in a system-to-system network?

I don't know what system-to-system network means, but the most fun  
use case I ever did with MUC was as an anti-spam tool.

We had bots, one on each incoming mail server, and they analyzed the  
mails coming in and the source IPs. When we detected a spammer IP  
address, the bot would shout it in a chat room, and all the others  
would block that IP.

the interesting part is that any sysadmin could enter the room and  
see what was going on, ask the bots to unblock an IP or ask them to  
block another one.

anyway, it was useful at times, and it was simple to implement.

Best regards,
HIId: Pedro Melo
SMTP: melo at co.sapo.pt
XMPP: pedro.melo at sapo.pt

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