It queries sbl-xbl.spamhaus.org, taking advantage of the Spamhaus Block List (SBL) and the Exploits Block List (XBL).

1. Install the package

apt-get install libapache2-mod-spamhaus


Apache is automatically restarted and the module is enabled. If you would like to test the module you can add a line to your hosts file to make it think that your IP address is blocked (pico /etc/hosts)

127.0.0.4 1.0.168.192.sbl-xbl.spamhaus.org


Replace 1.0.168.192 with your IP address and reverse it. The IP address 192.168.0.1 should read 1.0.168.192.

By default, only POST, PUT, OPTIONS, CONNECT methods are blocked. You can add GET to the list of methods blocked in /etc/apache2/mods-enabled/mod-spamhaus.conf to block the spammers from seeing your website.

1. Download ionCube loaders

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


2. Extract

sudo tar zxvf ioncube_loaders_lin_x86.tar.gz


3. Move to a permanent location

sudo mv ioncube /usr/local/


4. Add reference to your php.ini file (sudo 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. Use the one that matches your PHP version.

5. Restart apache

sudo /etc/init.d/apache2 restart


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
sudo tar zxvf ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz


Replace with your actual filename

3. Create a directory to contain Zend optimizer

sudo mkdir /usr/local/lib/Zend


3. Move the Zend optimizer lib to a permanent location

sudo 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 (sudo pico /etc/php5/apache2/php.ini)

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


5. Restart apache

sudo /etc/init.d/apache2 restart


1. Open the SSH daemon config file and change this line: (sudo pico /etc/ssh/sshd_config)

PermitRootLogin no


2. Restart the SSH daemon

sudo /etc/init.d/ssh restart


1. Install the PowerDNS server and MySql backend using apt

sudo 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 (sudo 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 (sudo 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

sudo /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.

1. Create a new user (optional)

adduser user1


2. As root, run this command:

visudo


3. Add this line into the file:

user1 ALL=(ALL) ALL


This will allow user1 to run all commands as root. You can also limit the access, Click here to view the syntax

4. Save the file by pressing Ctrl-X if you are using Nano or :w if using vi

If you have a desktop environment installed you can just click the upgrade button in the Update Manager accessible from System -> Administration -> Update Manager but on server systems without desktop environment you may need to upgrade using the terminal.

1. Install the update manager

sudo apt-get install update-manager-core


2. Launch the update and follow on-screen instructions

sudo do-release-upgrade


Open /etx/X11/xorg.conf using a text editor (pico /etx/X11/xorg.conf) and add these two lines in the Monitor section of the config file:

HorizSync 31-95
VertRefresh 50-60


Now reboot X or your server and next time you connect using VNC you'll be able to select up to 1024x768.

The Monitor Section will look something like this when you have added the two lines:

Section "Monitor"
Identifier "Configured Monitor"
HorizSync 31-95
VertRefresh 50-60
EndSection


1. Install all required packages

sudo apt-get install tomcat6 tomcat6-admin tomcat6-examples


Tomcat depends on a lot of other packages and the package manager will take care of that

2. Make sure the service is responding by entering url similar to this one in a browser:

http://{ipaddress}:8080/


Replace {ipaddress} with the ip address of your server

3. Create user and roles for the manager app. Replace the contents of your current file with something like this: (sudo pico /etc/tomcat6/tomcat-users.xml)

<?xml version='1.0' encoding='utf-8'?>
<tomcat-users>
<role rolename="manager" />
<role rolename="tomcat"/>
<user username="{username}" password="{password}" roles="tomcat,manager"/>
</tomcat-users>


Replace {username} and {password} with credentials of your choice.

4. Restart Tomcat

sudo /etc/init.d/tomcat6 restart


5. Enter the manager app with a browser

http://{ipaddress}:8080/manager/html


You can browse the examples using this location: http://{ipaddress}:8080/examples

1. Install required packages

sudo apt-get install vsftpd libpam-pwdfile


2. Configure vsftpd (sudo pico /etc/vsftpd.conf)

Edit these variables in the config file and leave everything else with the default value.

anonymous_enable=NO
local_enable=YES
write_enable=YES
local_umask=022
chroot_local_user=YES
virtual_use_local_privs=YES
guest_enable=YES
user_sub_token=$USER
local_root=/var/www/$USER
hide_ids=YES


Set the local_root to the parent directory where the user's home directories are located

3. Configure PAM to check the passwd file for users (sudo pico /etc/pam.d/vsftpd)

auth required pam_pwdfile.so pwdfile /etc/ftpd.passwd
account required pam_permit.so


Make sure you remove everything else from the file

4. Create the passwd file containing the users

sudo htpasswd -c /etc/ftpd.passwd user1


You can later add additional users to the file like this:

sudo htpasswd /etc/ftpd.passwd user2


5. Restart vsftpd

sudo /etc/init.d/vsftpd restart


6. Create user's home directory since vsftpd doesn't do it automatically

sudo mkdir /var/www/user1