[Zope] zeo and rdb backend

[Bak @ kedai]

hi
i have a few questions about zeo and how it works (newbie)
i managed to get zeo runniing, and i have two hosts serving one zodb.  that's
great.

but i can't access some of the data that resides in a rdbms (postgres).  i
guess the db connection points to the wrong host since i use 
dbname@localhost username (for postgres).

tried changing host to something else (host1 as defined in /etc/hosts) but cant
change properties.  zope said bad request.  the same error if i use zPoPyDA.

does this mean that i need to use zodb to use zeo?  what should i do to use rdb
for some of my data?

i'm stuck and in need of help, pointers, docs from the great ones.
help

thanks
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