Postfix con supporto mysql su fedora - creare il proprio rpm

Postfix con supporto mysql su Fedora

Get the latest source rpm fromFedora Core Developmentand install it
or here:
http://download.fedora.redhat.com/pub/fedora/linux/updates/7/SRPMS/

(Note: the src.rpm not the i386.rpm) with:

rpm -Uvh postfix-2.3.x-1.src.rpm   

If it still not the latest get the latest source from any of thePostfix Download Siteand put int into
rpm/SOURCES/ directory. In postfix.spec modify the version and add MySQL support (%define MYSQL 1) and build it:

rpmbuild -ba postfix.spec
rpmbuild -bb postfix.spec

Cioè:
scarico l'RPM con i sorgenti,
poi scarico l'ultima versione di postfix e lo installo
Tutto va a finire in /usr/src/redhat/SOURCES/
qui sostituisco
postfix-2.3.6.tar.gz
con
postfix-2.3.7.tar.gz
poi in
/usr/src/redhat/SPECS/
modifico
postfix.spec
%define MYSQL 1 Version: 2.3.7
e poi lancio
rpmbuild -ba postfix.spec
rpmbuild -bb postfix.spec
in
/usr/src/redhat/RPMS/i386
trovo i pacchetti RPM  e quindi
cd /usr/src/redhat/RPMS/i386
rpm -Uhv ./*

FATTO!!!!

[da http://dailypackage.fedorabook.com/index.php?/archives/6-Wednesday-Why-The-Alternatives-System.html]

To select one of these two packages interactively, the alternatives command is used with the --config option and the generic name of the feature that is being configured:

# alternatives --config mta

There are 2 programs which provide 'mta'.

Selection Command
-----------------------------------------------
*+ 1 /usr/sbin/sendmail.sendmail
2 /usr/sbin/sendmail.postfix

Enter to keep the current selection[+], or type selection number:

Note that the highest-priority alternative is marked with an astrisk (*), and the currently-selected option is marked with a plus-sign (+). Press enter to keep the current setting or enter a number to select another value.

To select an alternative directly from the command line, use the --set option:

# alternatives --set mta /usr/sbin/sendmail.postfix

You can see the current value by using the --display option:

# alternatives --display mta
mta - status is manual.
link currently points to /usr/sbin/sendmail.sendmail
/usr/sbin/sendmail.sendmail - priority 90
slave mta-pam: /etc/pam.d/smtp.sendmail
slave mta-mailq: /usr/bin/mailq.sendmail
slave mta-newaliases: /usr/bin/newaliases.sendmail
slave mta-rmail: /usr/bin/rmail.sendmail
slave mta-sendmail: /usr/lib/sendmail.sendmail
slave mta-mailqman: /usr/share/man/man1/mailq.sendmail.1.gz
slave mta-newaliasesman: /usr/share/man/man1/newaliases.sendmail.1.gz
slave mta-aliasesman: /usr/share/man/man5/aliases.sendmail.5.gz
slave mta-sendmailman: /usr/share/man/man8/sendmail.sendmail.8.gz
/usr/sbin/sendmail.postfix - priority 30
slave mta-pam: /etc/pam.d/smtp.postfix
slave mta-mailq: /usr/bin/mailq.postfix
slave mta-newaliases: /usr/bin/newaliases.postfix
slave mta-rmail: /usr/bin/rmail.postfix
slave mta-sendmail: /usr/lib/sendmail.postfix
slave mta-mailqman: /usr/share/man/man1/mailq.postfix.1.gz
slave mta-newaliasesman: /usr/share/man/man1/newaliases.postfix.1.gz
slave mta-aliasesman: /usr/share/man/man5/aliases.postfix.5.gz
slave mta-sendmailman: /usr/share/man/man1/sendmail.postfix.1.gz
Current `best' version is /usr/sbin/sendmail.sendmail.

Instead of selecting the alternative manually, you can choose to have the highest-priority option automatically selected. This will enable an automatic change as packages are added and removed:

# alternatives --auto mta

The most common use of the alternatives system is to select between implementations of Java, the print server, and the mail transfer agent. Fedora's implementation of alternatives is a rewrite and extension of the alternatives system used in Debian.

(Why is the generic name linked to a name in /etc/alternatives which is symlinked to the target, instead of the generic name being directly symlinked to the target? This was done so that the configuration information is contained in the /etc directory, centralizing the location of configuration data).