It's assumed that you have already installed and configured Postfix according to this tutorial:
Installing Postfix with MySql backend and SASL for SMTP authentication

1. Install required packages

apt-get install dovecot-imapd dovecot-pop3d


2. Configure Dovecot (pico /etc/dovecot/dovecot.conf)

protocols = imap imaps pop3 pop3s
ssl_disable = no
mail_location = maildir:/home/vmail/%d/%n
auth default {
passdb sql {
args = /etc/dovecot/dovecot-sql.conf
}
userdb sql {
args = /etc/dovecot/dovecot-sql.conf
}
}
disable_plaintext_auth = no
user = vmail


Add or edit the above properties and leave everything else with the default value or configure according to your needs

3. Configure the MySql connector (pico /etc/dovecot/dovecot-sql.conf)

driver = mysql
connect = host=127.0.0.1 dbname={database} user={username} password={password}
default_pass_scheme = CRYPT
password_query = SELECT email as user, password FROM users WHERE email = '%u'
user_query = SELECT CONCAT('/home/vmail/',SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/') as home, '5000' as uid, '5000' as gid FROM users WHERE email = '%u'


{database} = MySql database name
{username} = MySql username
{password} = MySql password

4. Restart Dovecot daemon

/etc/init.d/dovecot restart


It's assumed that you have already installed and configured Postfix according to this tutorial: Installing Postfix with MySql backend and SASL for SMTP authentication

1. Install required packages

apt-get install courier-authdaemon courier-authlib-mysql courier-pop courier-pop-ssl courier-imap courier-imap-ssl


2. Make Courier use MySql backend (pico /etc/courier/authdaemonrc)

authmodulelist="authmysql"


3. Configure the MySql connector (pico /etc/courier/authmysqlrc)

MYSQL_SERVER 127.0.0.1
MYSQL_USERNAME {username}
MYSQL_PASSWORD {password}
MYSQL_PORT 0
MYSQL_DATABASE {database}
MYSQL_USER_TABLE users
MYSQL_CRYPT_PWFIELD password
MYSQL_UID_FIELD 5000
MYSQL_GID_FIELD 5000
MYSQL_LOGIN_FIELD email
MYSQL_HOME_FIELD "/home/vmail"
MYSQL_MAILDIR_FIELD CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/')
MYSQL_QUOTA_FIELD quota


{database} = MySql database name
MySql username
MySql password

4. Restart Courier daemons

/etc/init.d/courier-authdaemon restart
/etc/init.d/courier-imap restart
/etc/init.d/courier-imap-ssl restart
/etc/init.d/courier-pop restart
/etc/init.d/courier-pop-ssl restart


Master

1. Configure master to listen on all ip addresses (pico /etc/mysql/my.cnf)

#bind-address = 127.0.0.1


Comment out this line or remove it

2. Configure server id, log file location and which databases are allowed to be replicated (pico /etc/mysql/my.cnf)

server-id = 1
log_bin = /var/log/mysql/mysql-bin.log
binlog_do_db = {database}


Replace {database} with the one you would like to replicate

3. Restart MySql

/etc/init.d/mysql restart


4. Create a user and allow it to act as slave for this server (mysql -u root -p)

GRANT REPLICATION SLAVE ON *.* TO {username}@'{ip}' IDENTIFIED BY '{password}';
FLUSH PRIVILEGES;


{username} = Your preferred username
{password} = Your password
{ip} = IP address of the slave system or % to allow all ip addresses

5. Show current log file and position (mysql -u root -p)

SHOW MASTER STATUS;


This will return something like this:

+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000004 | 2751 | {database} | |
+------------------+----------+--------------+------------------+


Keep the file name and position. It will be used later on the slave

6. Transfer data from the master to the slave

You can do this using various methods including exporting and importing using phpMyAdmin, creating a database dump from the master and import to the slave and "LOAD DATA FROM MASTER".

Slave

1. Configure this server to be a slave for the master MySql server (pico /etc/mysql/my.cnf)

server-id = 2
master-host = {master_ip}
master-user = {username}
master-password = {password}
master-connect-retry = 60
replicate-do-db = {database}


{master_ip} = The ip of the master server
{username} = The username you provided earlier on the master server
{password} = The password you provided earlier on the master server
{database} = The database you want to replicate

2. Restart MySql

/etc/init.d/mysql restart


3. Final configurations to make the slave replicate with the master (mysql -u root -p)

SLAVE STOP;
CHANGE MASTER TO MASTER_HOST='{master_ip}', MASTER_USER='{username}', MASTER_PASSWORD='{password}', MASTER_LOG_FILE='{log_file}', MASTER_LOG_POS={log_position};
SLAVE START;


{master_ip} = The ip of the master server
{username} = The username you provided earlier on the master server
{password} = The password you provided earlier on the master server
{log_file} = Log file name from the master (ex. mysql-bin.000004)
{log_position} = Log position from the master (ex. 2751)

1. Enable ip forward

echo "1" > /proc/sys/net/ipv4/ip_forward


2. Append routing rules to the nat table

iptables -t nat -A PREROUTING -p tcp -s 0/0 -d {local_ip} --dport {local_port} -j DNAT --to {destination_ip}:{destination_port}
iptables -t nat -A POSTROUTING -o eth0 -d {destination_ip} -j SNAT --to-source {local_ip}


• {local_ip}: A ip address mapped on the local system
• {local_port}: The port you would like to listen on
• {destination_ip}: Destination ip address
• {destination_port}: Destination port

3. Now you can access http://{local_ip}:{local_port} and would actually be getting response from http://{destination_ip}:{destination_port}

A working example

If the ip address of your system is 32.64.128.200 and you import the following rules, you would be able to connect to http://32.64.128.200:8080 and actually see the Google search engine because 216.239.59.105:80 is one of Google's web servers.

iptables -t nat -A PREROUTING -p tcp -s 0/0 -d 32.64.128.200 --dport 8080 -j DNAT --to 216.239.59.105:80
iptables -t nat -A POSTROUTING -o eth0 -d 216.239.59.105 -j SNAT --to-source 32.64.128.200


1. Download a copy of Zend Optimizer / Guard from the location below and put it into /tmp

http://www.zend.com/en/products/guard/downloads


2. Extract

cd /tmp
tar zxvf ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz


Replace with your actual filename

3. Create a directory to contain Zend optimizer

mkdir /usr/local/lib/Zend


3. Move the Zend optimizer lib to a permanent location

mv ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_2_x_comp/ZendOptimizer.so /usr/local/lib/Zend/


Your ZendOptimizer directory name may be different since it includes version numbers and platform. I'm using the 5_2_x_comp directory because I have PHP 5.2 installed.

4. Add reference to your php.ini file (pico /etc/php5/apache2/php.ini)

zend_extension = /usr/local/lib/Zend/ZendOptimizer.so
zend_optimizer.optimization_level = 15


5. Restart apache

/etc/init.d/apache2 restart


1. Add volatile archive to apt sources (pico /etc/apt/sources.list)

Etch:
deb http://volatile.debian.org/debian-volatile etch/volatile main contrib non-free


Lenny:
deb http://volatile.debian.org/debian-volatile lenny/volatile main contrib non-free


Note. Only add one of the line depending on your Debian version.

2. Update apt repository

apt-get update


3. Upgrade you packages

apt-get dist-upgrade


Check the name of your network interface. You should see a line similar to this one: "iface eth0 inet static". In my case the name is eth0.

Add these lines to the end of the file:

auto eth0:1
iface eth0:1 inet static
address 192.168.1.3
netmask 255.255.255.0
broadcast 192.168.1.255
network 192.168.1.0


Replace eth0 by your network interface name. If you are adding multiple IP addresses to the same system, you can increase the number after "eth0:".

2. Activate the new virtual network interface

ifup eth0:1


Master monitoring server

1. Install Munin and Munin node daemon:

apt-get install munin munin-node


2. Configure server being monitored (pico /etc/munin/munin.conf):

[host.domain.com]
address xxx.xxx.xxx.xxx
use_node_name yes


Replace host.domain.com with the server's fully qualified domain and xxx.xxx.xxx.xxx with it's IP address. Type this code for each and every server being monitored including the master server.

3. Configure the Munin node daemon (pico /etc/munin/munin-node.conf).

Set the master server host name (Must be the same as used in /etc/munin/munin.conf):

host_name host.domain.com


4. Restart Munin node daemon:

/etc/init.d/munin-node restart


All other servers being monitored

1. Install Munin and Munin node daemon:

apt-get install munin munin-node


2. Configure the Munin node daemon (pico /etc/munin/munin-node.conf).

Set this server's host name (Must be the same as used in /etc/munin/munin.conf on the master server):

host_name host.domain.com


Allow the master server to connect and grab data:

allow ^xxx\.xxx\.xxx\.xxx$


Replace ^xxx\.xxx\.xxx\.xxx$ with your server's IP address. For example if the master server's IP address is 192.168.1.1, you would use: ^192\.168\.1\.1$. The master server will connect to this server on port 4949 so make sure that port isn't blocked on firewalls.

3. Restart Munin node daemon:

/etc/init.d/munin-node restart


1. Download ionCube loaders

wget http://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86.tar.gz


2. Extract

tar zxvf ioncube_loaders_lin_x86.tar.gz


3. Move to a permanent location

mv ioncube /usr/local/


4. Add reference to your php.ini file (pico /etc/php5/apache2/php.ini)

zend_extension = /usr/local/ioncube/ioncube_loader_lin_5.2.so


There are a few versions of the loader in the tar archive and you can choose the one that suites your needs

5. Restart apache

/etc/init.d/apache2 restart


This tutorial has been tested and is working on Debian etch and lenny

1. Install the PowerDNS server and MySql backend using apt

apt-get install pdns-server pdns-backend-mysql


2. Create a new database (or use existing) and execute the following SQL queries to create the PowerDNS table structure:

create table domains (
id INT auto_increment,
name VARCHAR(255) NOT NULL,
master VARCHAR(128) DEFAULT NULL,
last_check INT DEFAULT NULL,
type VARCHAR(6) NOT NULL,
notified_serial INT DEFAULT NULL,
account VARCHAR(40) DEFAULT NULL,
primary key (id)
)type=InnoDB;
 
CREATE UNIQUE INDEX name_index ON domains(name);
 
CREATE TABLE records (
id INT auto_increment,
domain_id INT DEFAULT NULL,
name VARCHAR(255) DEFAULT NULL,
type VARCHAR(6) DEFAULT NULL,
content VARCHAR(255) DEFAULT NULL,
ttl INT DEFAULT NULL,
prio INT DEFAULT NULL,
change_date INT DEFAULT NULL,
primary key(id)
)type=InnoDB;
 
CREATE INDEX rec_name_index ON records(name);
CREATE INDEX nametype_index ON records(name,type);
CREATE INDEX domain_id ON records(domain_id);
 
create table supermasters (
ip VARCHAR(25) NOT NULL,
nameserver VARCHAR(255) NOT NULL,
account VARCHAR(40) DEFAULT NULL
);


3. Configure PowerDNS to use the MySql backend by adding this line into the configuration file (pico /etc/powerdns/pdns.conf)

launch=gmysql


4. Configure MySql login information for the PowerDNS server that can read from the tables you created earlier by adding lines similar to these (pico /etc/powerdns/pdns.d/pdns.local)

gmysql-host=127.0.0.1
gmysql-user=pdns
gmysql-password=password
gmysql-dbname=pdns


Replace the username, password and dbname with a valid login information and database name.

5. Restart PowerDNS

/etc/init.d/pdns restart


Now you should have a fully functional PowerDNS server installed. To manage the database (adding zones and records), consider using the Poweradmin web-based administration tool.