Mirror of the Server

Dear all,

I have installed Postgres in one of the servers on our site and just called it the "Primary Database Server'.

Now, for the back-up purpose, we may want to install Postgres in one of the other servers on site acting as an mirror
ofthe "Primary" one. That means whatever modifications made on the primary will do the same on the mirror database
server.Is POstgresql capable of doing that ? If it is , How ? 

Thanks for your attention and any suggestion is highly appreciated.

Cheers,
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| Michael Yeung                 |
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