Postfix and database [closed]

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I am about to install postfix/Dovecot in Redhat Linux server. After checking this link http://www.linuxfromscratch.org/blfs/view/svn/server/postfix.html, I knew that I had to install berkley database too.

But after checking softwares installed on the server, I found another DB SW installed.

Can I depend on another kind of databases other than the one required in the above link?

Answer 1

You don't mention the version of Red Hat, but I assume you use a version which is not so terribly old it does not have yum.

With

yum deplist postfix

you can list all the dependencies which postfix has in the RPM package. On my Fedora system, libdb is listed as a dependency, which is the Berkeley DB library and is sufficient for postfix.

When you install RPM's with yum, the dependencies are automatically resolved and everything which is required will be installed. Trust yum.