postgres replication

hello,

i need help with online database replication.
is there any daemon, whitch can do that ?
right now i'm writting one based on triggers, but it will be great if
somebody has some link for something like that, witch is already made .

i found erserver.com , but it's not complete right now and i can't find
any sources for that [i think that it is commercial product]

other solution is to make some nfs [based on coda for ex], but i'm not
sure if postmaster can share it's data directory with other postmasters
... i think it will not work.

thanks a lot for answer.

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Peter Gubis
Ericsson Business Systems Slovakia Ltd.
Stará Vajnorská 90 Tel.: +421 7 49499 254
SK 831 04 Bratislava
Slovakia

E-Mail : peter(dot)gubis(at)sbb(dot)ericsson(dot)se