Which is better for multi-use auth, MySQL, PostgreSQL, or LDAP?

Posted by Fearless on Super User See other posts from Super User or by Fearless
Published on 2013-10-28T21:21:55Z Indexed on 2013/10/28 21:57 UTC
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Filed under:

linux

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email

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database

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authentication

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dovecot

I want to set up an Oracle Linux 6 server that gives users secure IMAP email (with dovecot), Jabber IM, FTP (with vsftpd), and calDav. However, I want each user logon to be able to authenticate all services (e.g. Joe Smith signs up once for a username and password that he can use for email, ftp, and his calendar). My question is, which database service will be best suited for that application?

Also, is there a way to link the database with the preexisting server shell logins (e.g. so I can read the root account's LogCheck emails on a different device)?

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