Postgresql Replication

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hello all...our business has now the need to replicate our sl/postgres db
from our main office in ca to ny as the ny system (public and outside of
our firewall) has the need to generate non-critical read only invoice and
inventory reports. our requirements are real simple and slony-i seems to
be an overkill. we have also evaluated pgpool-ii but it was ruled out as
it doesn't support x509 ssl connection (a must for business data). oralce
and informix would have been nice as they both provide standby read-only
databases that are very simple to manage. it is too bad that you cannot
access a standby postgres database.

so my question is anyone has any comments on what other tools out there
that may allow us to create a postgres standby read-only database? if
nothing we may just have to walk down the slony-i path...thanks ahead for
any comments.

regards,

tim