10 Install Courier-IMAP, Courier-Authlib, And Maildrop

Unfortunately there are no rpm packages for Courier-IMAP, Courier-Authlib, and Maildrop, therefore we have to build them ourselves.

First remove Dovecot (CentOS 6.1 comes with Dovecot 2.x; unfortunately, ISPConfig 3 supports Dovecot 1.2.x, but not 2.x):

yum remove dovecot dovecot-mysql

Then install the prerequisites that we need to build Courier rpm packages:

yum install rpm-build gcc mysql-devel openssl-devel cyrus-sasl-devel pkgconfig zlib-devel pcre-devel openldap-devel postgresql-devel expect libtool-ltdl-devel openldap-servers libtool gdbm-devel pam-devel gamin-devel libidn-devel

RPM packages should not be built as root; courier-imap will even refuse to compile if it detects that the compilation is run as the root user. Therefore we create a normal user account now (falko in this example) and give him a password:

useradd -m -s /bin/bash falko
passwd falko

We will need the sudo command later on so that the user falko can compile and install the rpm packages. But first, we must allow falko to run all commands using sudo:

Run

visudo

In the file that opens there's a line root ALL=(ALL) ALL. Add a similar line for falko just below that line:

[...]
## Allow root to run any commands anywhere
root    ALL=(ALL)       ALL
falko   ALL=(ALL)       ALL
[...]

Now we are ready to build our rpm package. First become the user falko:

su falko

Next we create our build environment:

mkdir $HOME/rpm
mkdir $HOME/rpm/SOURCES
mkdir $HOME/rpm/SPECS
mkdir $HOME/rpm/BUILD
mkdir $HOME/rpm/BUILDROOT
mkdir $HOME/rpm/SRPMS
mkdir $HOME/rpm/RPMS
mkdir $HOME/rpm/RPMS/i386
mkdir $HOME/rpm/RPMS/x86_64

echo "%_topdir $HOME/rpm" >> $HOME/.rpmmacros

Now we create a downloads directory and download the source files from http://www.courier-mta.org/download.php:

mkdir $HOME/downloads
cd $HOME/downloads

wget https://sourceforge.net/projects/courier/files/authlib/0.63.0/courier-authlib-0.63.0.tar.bz2/download
wget https://sourceforge.net/projects/courier/files/imap/4.9.3/courier-imap-4.9.3.tar.bz2/download
wget https://sourceforge.net/projects/courier/files/maildrop/2.5.5/maildrop-2.5.5.tar.bz2/download

(Please note that I use Courier-IMAP 4.9.3 here instead of the newer 4.10.0 because 4.10.0 depends on systemctl which exists for Fedora, but not for CentOS.)

Now (still in $HOME/downloads) we can build courier-authlib:

sudo rpmbuild -ta courier-authlib-0.63.0.tar.bz2

After the build process, the rpm packages can be found in /root/rpmbuild/RPMS/x86_64 (/root/rpmbuild/RPMS/i686 if you are on an i686 system). The command

sudo ls -l /root/rpmbuild/RPMS/x86_64

shows you the available rpm packages:

[falko@server1 downloads]$ sudo ls -l /root/rpmbuild/RPMS/x86_64
total 528
-rw-r--r-- 1 root root 124008 Dec 16 01:10 courier-authlib-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root 270860 Dec 16 01:10 courier-authlib-debuginfo-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  35072 Dec 16 01:10 courier-authlib-devel-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  17368 Dec 16 01:10 courier-authlib-ldap-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  13928 Dec 16 01:10 courier-authlib-mysql-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  13076 Dec 16 01:10 courier-authlib-pgsql-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root   8312 Dec 16 01:10 courier-authlib-pipe-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  34064 Dec 16 01:10 courier-authlib-userdb-0.63.0-1.el6.x86_64.rpm
[falko@server1 downloads]$

Select the ones you want to install, and install them like this:

sudo rpm -ivh /root/rpmbuild/RPMS/x86_64/courier-authlib-0.63.0-1.el6.x86_64.rpm /root/rpmbuild/RPMS/x86_64/courier-authlib-mysql-0.63.0-1.el6.x86_64.rpm /root/rpmbuild/RPMS/x86_64/courier-authlib-devel-0.63.0-1.el6.x86_64.rpm

Now we go back to our downloads directory:

cd $HOME/downloads

Run the following commands to create required directories/change directory permissions (because otherwise the build process for Courier-Imap will fail):

sudo mkdir -p /var/cache/ccache/tmp
sudo chmod o+rwx /var/cache/ccache/
sudo chmod 777 /var/cache/ccache/tmp

Now run rpmbuild again, this time without sudo, otherwise the compilation will fail because it was run as root:

rpmbuild -ta courier-imap-4.9.3.tar.bz2

After the build process, the rpm packages can be found in $HOME/rpm/RPMS/x86_64 ($HOME/rpm/RPMS/i686 if you are on an i686 system):

cd $HOME/rpm/RPMS/x86_64

The command

ls -l

shows you the available rpm packages:

[falko@server1 x86_64]$ ls -l
total 1116
-rw-rw-r-- 1 falko falko 331908 Dec 16 01:33 courier-imap-4.9.3-1.x86_64.rpm
-rw-rw-r-- 1 falko falko 800864 Dec 16 01:33 courier-imap-debuginfo-4.9.3-1.x86_64.rpm
[falko@server1 x86_64]$

You can install courier-imap like this:

sudo rpm -ivh courier-imap-4.9.3-1.x86_64.rpm

Now we go back to our downloads directory:

cd $HOME/downloads

and run rpmbuild again, this time to build a maildrop package:

sudo rpmbuild -ta maildrop-2.5.5.tar.bz2

After the build process, the rpm packages can be found in /root/rpmbuild/RPMS/x86_64 (/root/rpmbuild/RPMS/i686 if you are on an i686 system). The command

sudo ls -l /root/rpmbuild/RPMS/x86_64

shows you the available rpm packages:

[falko@server1 downloads]$ sudo ls -l /root/rpmbuild/RPMS/x86_64
total 1712
-rw-r--r-- 1 root root 124008 Dec 16 01:10 courier-authlib-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root 270860 Dec 16 01:10 courier-authlib-debuginfo-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  35072 Dec 16 01:10 courier-authlib-devel-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  17368 Dec 16 01:10 courier-authlib-ldap-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  13928 Dec 16 01:10 courier-authlib-mysql-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  13076 Dec 16 01:10 courier-authlib-pgsql-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root   8312 Dec 16 01:10 courier-authlib-pipe-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root  34064 Dec 16 01:10 courier-authlib-userdb-0.63.0-1.el6.x86_64.rpm
-rw-r--r-- 1 root root 286480 Dec 16 01:40 maildrop-2.5.5-1.x86_64.rpm
-rw-r--r-- 1 root root 751376 Dec 16 01:40 maildrop-debuginfo-2.5.5-1.x86_64.rpm
-rw-r--r-- 1 root root 102104 Dec 16 01:40 maildrop-devel-2.5.5-1.x86_64.rpm
-rw-r--r-- 1 root root  65940 Dec 16 01:40 maildrop-man-2.5.5-1.x86_64.rpm
[falko@server1 downloads]$

You can now install maildrop like this:

sudo rpm -ivh /root/rpmbuild/RPMS/x86_64/maildrop-2.5.5-1.x86_64.rpm

After you have compiled and installed all needed packages, you can become root again by typing

exit

Now start Courier-IMAP/-POP3 as follows:

/etc/init.d/courier-imap start

11 Install Postfix

Postfix can be installed as follows:

yum install postfix

Then turn off Sendmail and start Postfix and MySQL:

chkconfig --levels 235 mysqld on
/etc/init.d/mysqld start

chkconfig --levels 235 sendmail off
chkconfig --levels 235 postfix on
/etc/init.d/sendmail stop
/etc/init.d/postfix start

12 Install Getmail

Getmail can be installed as follows:

yum install getmail

13 Set MySQL Passwords And Configure phpMyAdmin

Set passwords for the MySQL root account:

mysql_secure_installation

[root@server1 tmp]# mysql_secure_installation




NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!


In order to log into MySQL to secure it, we'll need the current
password for the root user.  If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

Set root password? [Y/n] <-- ENTER
New password: <-- yourrootsqlpassword
Re-enter new password: <-- yourrootsqlpassword
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MySQL installation has an anonymous user, allowing anyone
to log into MySQL without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] <-- ENTER
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] <-- ENTER
 ... Success!

By default, MySQL comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] <-- ENTER
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] <-- ENTER
 ... Success!

Cleaning up...



All done!  If you've completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!


[root@server1 tmp]#

Now we configure phpMyAdmin. We change the Apache configuration so that phpMyAdmin allows connections not just from localhost (by commenting out the <Directory "/usr/share/phpmyadmin"> stanza):

vi /etc/httpd/conf.d/phpmyadmin.conf

#
#  Web application to manage MySQL
#

#<Directory "/usr/share/phpmyadmin">
#  Order Deny,Allow
#  Deny from all
#  Allow from 127.0.0.1
#</Directory>

Alias /phpmyadmin /usr/share/phpmyadmin
Alias /phpMyAdmin /usr/share/phpmyadmin
Alias /mysqladmin /usr/share/phpmyadmin

Next we change the authentication in phpMyAdmin from cookie to http:

vi /usr/share/phpmyadmin/config.inc.php

[...]
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'http';
[...]

Then we create the system startup links for Apache and start it:

chkconfig --levels 235 httpd on
/etc/init.d/httpd start

Now you can direct your browser to http://server1.example.com/phpmyadmin/ or http://192.168.0.100/phpmyadmin/ and log in with the user name root and your new root MySQL password.