Debian Server: How to

[askwrite]

This tutorial shows how to prepare a Debian Wheezy server with Apache2, BIND, Dovecot for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache or nginx web server, Postfix mail server, Courier or Dovecot IMAP/POP3 server, MySQL, BIND or MyDNS nameserver, PureFTPd, SpamAssassin, ClamAV, and many more.

Install The SSH Server

If you did not install the OpenSSH server during the system installation, you can do it now:

apt-get install ssh openssh-server

From now on you can use an SSH client such as PuTTY and connect from your workstation to your Debian Wheezy server and follow the remaining steps from this tutorial.

Configure The Network

Because the Debian Wheezy installer has configured our system to get its network settings via DHCP, we have to change that now because a server should have a static IP address. Edit/etc/network/interfaces and adjust it to your needs (in this example setup I will use the IP address 192.168.1.100) (please note that I replace allow-hotplug eth0 with auto eth0; otherwise restarting the network doesn’t work, and we’d have to reboot the whole system):

nano /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#allow-hotplug eth0
#iface eth0 inet dhcp
auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1

Then restart your network:

/etc/init.d/networking restart

Edit /etc/hosts. Make it look like this:

nano /etc/hosts

127.0.0.1       localhost.localdomain   localhost
192.168.0.100   demo.server.com     demo
# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Now run:

echo demo.server.com > /etc/hostname
/etc/init.d/hostname.sh start

Afterwards, run

hostname
hostname -f

It is important that both show demo.server.com now!

Update Your Debian Installation

First make sure that your /etc/apt/sources.list contains the wheezy-updates repository (this makes sure you always get the newest updates for the ClamAV virus scanner – this project publishes releases very often, and sometimes old versions stop working), and that the contrib and non-free repositories are enabled (some packages such as libapache2-mod-fastcgi are not in the main repository).

nano /etc/apt/sources.list

deb http://ftp.de.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy main contrib non-free

deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free

# wheezy-updates, previously known as 'volatile'
deb http://ftp.de.debian.org/debian/ wheezy-updates main contrib non-free
deb-src http://ftp.de.debian.org/debian/ wheezy-updates main contrib non-free

Run

apt-get update

to update the apt package database and

apt-get upgrade

to install the latest updates (if there are any).

Synchronize the System Clock

It is a good idea to synchronize the system clock with an NTP (network time protocol) server over the Internet. Simply run

apt-get install ntp ntpdate

and your system time will always be in sync.

Install Postfix, Dovecot, MySQL, phpMyAdmin, rkhunter, binutils

We can install Postfix, Dovecot, MySQL, rkhunter, and binutils with a single command:

apt-get install postfix postfix-mysql postfix-doc mysql-client mysql-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d dovecot-mysql dovecot-sieve sudo

You will be asked the following questions:

General type of mail configuration: <-- Internet Site

System mail name: <-- demo.server.com

New password for the MySQL "root" user: <-- yourrootsqlpassword

Repeat password for the MySQL "root" user: <-- yourrootsqlpassword

Next open the TLS/SSL and submission ports in Postfix:

nano /etc/postfix/master.cf

Uncomment the submission and smtps sections as follows (leave -o milter_macro_daemon_name=ORIGINATING as we don’t need it):

[...]
submission inet n       -       -       -       -       smtpd
  -o syslog_name=postfix/submission
  -o smtpd_tls_security_level=encrypt
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
smtps     inet  n       -       -       -       -       smtpd
  -o syslog_name=postfix/smtps
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
[...]

Restart Postfix afterwards:

/etc/init.d/postfix restart

We want MySQL to listen on all interfaces, not just localhost, therefore we edit /etc/mysql/my.cnf and comment out the line bind-address = 127.0.0.1:

nano /etc/mysql/my.cnf

[...]
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address           = 127.0.0.1
[...]

Then we restart MySQL:

/etc/init.d/mysql restart

Now check that networking is enabled. Run

netstat -tap | grep mysql

The output should look like this:

root@demo:~# netstat -tap | grep mysql
tcp        0      0 *:mysql                 *                     LISTEN      26757/mysqld
root@server1:~#

Install Amavisd-new, SpamAssassin, And Clamav

To install amavisd-new, SpamAssassin, and ClamAV, we run

apt-get install amavisd-new spamassassin clamav clamav-daemon zoo unzip bzip2 arj nomarch lzop cabextract apt-listchanges libnet-ldap-perl libauthen-sasl-perl clamav-docs daemon libio-string-perl libio-socket-ssl-perl libnet-ident-perl zip libnet-dns-perl

The ISPConfig 3 setup uses amavisd which loads the SpamAssassin filter library internally, so we can stop SpamAssassin to free up some RAM:

/etc/init.d/spamassassin stop
update-rc.d -f spamassassin remove

Install Apache2, PHP5, phpMyAdmin, FCGI, suExec, Pear, And mcrypt

Apache2, PHP5, phpMyAdmin, FCGI, suExec, Pear, and mcrypt can be installed as follows:

apt-get install apache2 apache2.2-common apache2-doc apache2-mpm-prefork apache2-utils libexpat1 ssl-cert libapache2-mod-php5 php5 php5-common php5-gd php5-mysql php5-imap phpmyadmin php5-cli php5-cgi libapache2-mod-fcgid apache2-suexec php-pear php-auth php5-mcrypt mcrypt php5-imagick imagemagick libapache2-mod-suphp libruby libapache2-mod-ruby libapache2-mod-python php5-curl php5-intl php5-memcache php5-memcached php5-ming php5-ps php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl memcached

You will see the following question:

Web server to reconfigure automatically: <-- apache2
Configure database for phpmyadmin with dbconfig-common? <-- No

Then run the following command to enable the Apache modules suexec, rewrite, ssl, actions, and include (plus dav, dav_fs, and auth_digest if you want to use WebDAV):

a2enmod suexec rewrite ssl actions include

a2enmod dav_fs dav auth_digest

Next open /etc/apache2/mods-available/suphp.conf…

 nano /etc/apache2/mods-available/suphp.conf

… and comment out the <FilesMatch “.ph(p3?|tml)$”> section and add the line AddType application/x-httpd-suphp .php .php3 .php4 .php5 .phtml - otherwise all PHP files will be run by SuPHP:

<IfModule mod_suphp.c>
    #<FilesMatch ".ph(p3?|tml)$">
    #    SetHandler application/x-httpd-suphp
    #</FilesMatch>
        AddType application/x-httpd-suphp .php .php3 .php4 .php5 .phtml
        suPHP_AddHandler application/x-httpd-suphp

    <Directory />
        suPHP_Engine on
    </Directory>

    # By default, disable suPHP for debian packaged web applications as files
    # are owned by root and cannot be executed by suPHP because of min_uid.
    <Directory /usr/share>
        suPHP_Engine off
    </Directory>

# # Use a specific php config file (a dir which contains a php.ini file)
#       suPHP_ConfigPath /etc/php5/cgi/suphp/
# # Tells mod_suphp NOT to handle requests with the type <mime-type>.
#       suPHP_RemoveHandler <mime-type>
</IfModule>

Restart Apache afterwards:

/etc/init.d/apache2 restart

If you want to host Ruby files with the extension .rb on your web sites created through ISPConfig, you must comment out the line application/x-ruby rb in /etc/mime.types:

nano /etc/mime.types

[...]
#application/x-ruby                             rb
[...]

(This is needed only for .rb files; Ruby files with the extension .rbx work out of the box.)

Restart Apache afterwards:

/etc/init.d/apache2 restart

Xcache

Xcache is a free and open PHP opcode cacher for caching and optimizing PHP intermediate code. It’s similar to other PHP opcode cachers, such as eAccelerator and APC. It is strongly recommended to have one of these installed to speed up your PHP page.

Xcache can be installed as follows:

apt-get install php5-xcache

Now restart Apache:

/etc/init.d/apache2 restart

PHP-FPM

Starting with ISPConfig 3.0.5, there is an additional PHP mode that you can select for usage with Apache: PHP-FPM.

To use PHP-FPM with Apache, we need the mod_fastcgi Apache module (please don’t mix this up with mod_fcgid – they are very similar, but you cannot use PHP-FPM with mod_fcgid). We can install PHP-FPM and mod_fastcgi as follows:

apt-get install libapache2-mod-fastcgi php5-fpm

Make sure you enable the module and restart Apache:

a2enmod actions fastcgi alias

/etc/init.d/apache2 restart

Install Mailman

Since version 3.0.4, ISPConfig also allows you to manage (create/modify/delete) Mailman mailing lists. If you want to make use of this feature, install Mailman as follows:

apt-get install mailman

Select at least one language, e.g.:

Languages to support: <-- en (English)
Missing site list <-- Ok<

Before we can start Mailman, a first mailing list called mailman must be created:

newlist mailman

root@demo:~# newlist mailman

Enter the email of the person running the list: <-- admin email address, e.g. listadmin@server.com
Initial mailman password: <-- admin password for the mailman list

To finish creating your mailing list, you must edit your /etc/aliases (or equivalent) file by adding the following lines, and possibly running the `newaliases' program:

## mailman mailing list mailman:        "|/var/lib/mailman/mail/mailman post mailman" 
mailman-admin:        "|/var/lib/mailman/mail/mailman admin mailman" 
mailman-bounces:      "|/var/lib/mailman/mail/mailman bounces mailman" 
mailman-confirm:      "|/var/lib/mailman/mail/mailman confirm mailman" 
mailman-join:         "|/var/lib/mailman/mail/mailman join mailman" 
mailman-leave:        "|/var/lib/mailman/mail/mailman leave mailman" 
mailman-owner:        "|/var/lib/mailman/mail/mailman owner mailman" 
mailman-request:      "|/var/lib/mailman/mail/mailman request mailman" 
mailman-subscribe:    "|/var/lib/mailman/mail/mailman subscribe mailman" 
mailman-unsubscribe:  "|/var/lib/mailman/mail/mailman unsubscribe mailman" 

Hit enter to notify mailman owner... <-- ENTER root@demo:~#

Open /etc/aliases afterwards…

 nano /etc/aliases

… and add the following lines:

[...]
## mailman mailing list
mailman:              "|/var/lib/mailman/mail/mailman post mailman"
mailman-admin:        "|/var/lib/mailman/mail/mailman admin mailman"
mailman-bounces:      "|/var/lib/mailman/mail/mailman bounces mailman"
mailman-confirm:      "|/var/lib/mailman/mail/mailman confirm mailman"
mailman-join:         "|/var/lib/mailman/mail/mailman join mailman"
mailman-leave:        "|/var/lib/mailman/mail/mailman leave mailman"
mailman-owner:        "|/var/lib/mailman/mail/mailman owner mailman"
mailman-request:      "|/var/lib/mailman/mail/mailman request mailman"
mailman-subscribe:    "|/var/lib/mailman/mail/mailman subscribe mailman"
mailman-unsubscribe:  "|/var/lib/mailman/mail/mailman unsubscribe mailman"

Run

newaliases

afterwards and restart Postfix:

/etc/init.d/postfix restart

Finally we must enable the Mailman Apache configuration:

ln -s /etc/mailman/apache.conf /etc/apache2/conf.d/mailman.conf

This defines the alias /cgi-bin/mailman/ for all Apache vhosts, which means you can access the Mailman admin interface for a list at http://<vhost>/cgi-bin/mailman/admin/<listname>, and the web page for users of a mailing list can be found at http://<vhost>/cgi-bin/mailman/listinfo/<listname>.

Under http://<vhost>/pipermail you can find the mailing list archives.

Restart Apache afterwards:

/etc/init.d/apache2 restart

Then start the Mailman daemon:

/etc/init.d/mailman start

Install PureFTPd And Quota

PureFTPd and quota can be installed with the following command:

apt-get install pure-ftpd-common pure-ftpd-mysql quota quotatool

Edit the file /etc/default/pure-ftpd-common…

 nano /etc/default/pure-ftpd-common

… and make sure that the start mode is set to standalone and set VIRTUALCHROOT=true:

[...]
STANDALONE_OR_INETD=standalone
[...]
VIRTUALCHROOT=true
[...]

Now we configure PureFTPd to allow FTP and TLS sessions. FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure.

If you want to allow FTP and TLS sessions, run

echo 1 > /etc/pure-ftpd/conf/TLS

In order to use TLS, we must create an SSL certificate. I create it in /etc/ssl/private/, therefore I create that directory first:

mkdir -p /etc/ssl/private/

Afterwards, we can generate the SSL certificate as follows:

openssl req -x509 -nodes -days 7300 -newkey rsa:2048 -keyout /etc/ssl/private/pure-ftpd.pem -out /etc/ssl/private/pure-ftpd.pem

Country Name (2 letter code) [AU]: <-- Enter your Country Name (e.g., "AQ").
State or Province Name (full name) [Some-State]: <-- Enter your State or Province Name. 
Locality Name (eg, city) []: <-- Enter your City. 
Organization Name (eg, company) [Internet Widgits Pty Ltd]: <-- Enter your ON (Name of your company) 
Organizational Unit Name (eg, section) []: <-- Enter your OU Name (e.g. "IT Department"). 
Common Name (eg, YOUR name) []: <-- Enter the FQDN (e.g. "demo.server.com"). 
Email Address []: <-- Enter your Email Address.

Change the permissions of the SSL certificate:

chmod 600 /etc/ssl/private/pure-ftpd.pem

Then restart PureFTPd:

/etc/init.d/pure-ftpd-mysql restart

Edit /etc/fstab. Mine looks like this (I added ,usrjquota=quota.user,grpjquota=quota.group,jqfmt=vfsv0 to the partition with the mount point /):

 nano /etc/fstab

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/demo-root /               ext4    errors=remount-ro,usrjquota=quota.user,grpjquota=quota.group,jqfmt=vfsv0 0       1
# /boot was on /dev/sda1 during installation
UUID=46d1bd79-d761-4b23-80b8-ad20cb18e049 /boot           ext2    defaults        0       2
/dev/mapper/server1-swap_1 none            swap    sw              0       0
/dev/sr0        /media/cdrom0   udf,iso9660 user,noauto     0       0

To enable quota, run these commands:

mount -o remount /

quotacheck -avugm

quotaon -avug

Install BIND DNS Server

BIND can be installed as follows:

apt-get install bind9 dnsutils

Install Vlogger, Webalizer, And AWstats

Vlogger, webalizer, and AWstats can be installed as follows:

apt-get install vlogger webalizer awstats geoip-database libclass-dbi-mysql-perl

Open /etc/cron.d/awstats afterwards…

 nano /etc/cron.d/awstats

… and comment out everything in that file:

#MAILTO=root

#*/10 * * * * www-data [ -x /usr/share/awstats/tools/update.sh ] && /usr/share/awstats/tools/update.sh

# Generate static reports:
#10 03 * * * www-data [ -x /usr/share/awstats/tools/buildstatic.sh ] && /usr/share/awstats/tools/buildstatic.sh

Install Jailkit

Jailkit is needed only if you want to chroot SSH users. It can be installed as follows (important: Jailkit must be installed before ISPConfig – it cannot be installed afterwards!):

apt-get install build-essential autoconf automake1.9 libtool flex bison debhelper binutils-gold

cd /tmp
wget http://olivier.sessink.nl/jailkit/jailkit-2.15.tar.gz
tar xvfz jailkit-2.15.tar.gz
cd jailkit-2.15
./debian/rules binary

You can now install the Jailkit .deb package as follows:

cd ..
dpkg -i jailkit_2.15-1_*.deb
rm -rf jailkit-2.15*

Install fail2ban

This is optional but recommended, because the ISPConfig monitor tries to show the log:

apt-get install fail2ban

To make fail2ban monitor PureFTPd and Dovecot, create the file /etc/fail2ban/jail.local:

 nano /etc/fail2ban/jail.local

[pureftpd]
enabled  = true
port     = ftp
filter   = pureftpd
logpath  = /var/log/syslog
maxretry = 3

[dovecot-pop3imap]
enabled = true
filter = dovecot-pop3imap
action = iptables-multiport[name=dovecot-pop3imap, port="pop3,pop3s,imap,imaps", protocol=tcp]
logpath = /var/log/mail.log
maxretry = 5

[sasl]
enabled  = true
port     = smtp
filter   = sasl
logpath  = /var/log/mail.log
maxretry = 3

Then create the following two filter files:

 nano /etc/fail2ban/filter.d/pureftpd.conf

[Definition]
failregex = .*pure-ftpd: (.*@<HOST>) [WARNING] Authentication failed for user.*
ignoreregex =

 nano /etc/fail2ban/filter.d/dovecot-pop3imap.conf

[Definition]
failregex = (?: pop3-login|imap-login): .*(?:Authentication failure|Aborted login (auth failed|Aborted login (tried to use disabled|Disconnected (auth failed|Aborted login (d+ authentication attempts).*rip=(?P<host>S*),.*
ignoreregex =

Restart fail2ban afterwards:

/etc/init.d/fail2ban restart

Install SquirrelMail

To install the SquirrelMail webmail client, run

apt-get install squirrelmail

Then configure SquirrelMail:

squirrelmail-configure

We must tell SquirrelMail that we are using Dovecot-IMAP/-POP3:

SquirrelMail Configuration : Read: config.php (1.4.0)
---------------------------------------------------------
Main Menu --
1.  Organization Preferences
2.  Server Settings
3.  Folder Defaults
4.  General Options
5.  Themes
6.  Address Books
7.  Message of the Day (MOTD)
8.  Plugins
9.  Database
10. Languages
D.  Set pre-defined settings for specific IMAP servers 

C   Turn color on 
S   Save data 
Q   Quit 

Command >> <-- D 

SquirrelMail Configuration : Read: config.php
 --------------------------------------------------------- 
While we have been building SquirrelMail, we have discovered some preferences that work better with some servers that don't work so well with others.  If you select your IMAP server, this option will set some pre-defined settings for that server. 

Please note that you will still need to go through and make sure everything is correct.  This does not change everything.  There are only a few settings that this will change. 

Please select your IMAP server: 
     bincimap    = Binc IMAP server 
     courier     = Courier IMAP server 
     cyrus       = Cyrus IMAP server 
     dovecot     = Dovecot Secure IMAP server 
     exchange    = Microsoft Exchange IMAP server 
     hmailserver = hMailServer 
     macosx      = Mac OS X Mailserver 
     mercury32   = Mercury/32 
     uw          = University of Washington's IMAP server 
     gmail       = IMAP access to Google mail (Gmail) accounts 

     quit        = Do not change anything 

Command >> <-- dovecot 


SquirrelMail Configuration : Read: config.php 
--------------------------------------------------------- 
While we have been building SquirrelMail, we have discovered some preferences that work better with some servers that don't work so well with others.  If you select your IMAP server, this option will set some pre-defined settings for that server. 

Please note that you will still need to go through and make sure everything is correct.  This does not change everything.  There are only a few settings that this will change. 

Please select your IMAP server: 

       bincimap    = Binc IMAP server 
       courier     = Courier IMAP server 
       cyrus       = Cyrus IMAP server 
       dovecot     = Dovecot Secure IMAP server 
       exchange    = Microsoft Exchange IMAP server 
       hmailserver = hMailServer 
       macosx      = Mac OS X Mailserver 
       mercury32   = Mercury/32 
       uw          = University of Washington's IMAP server 
       gmail       = IMAP access to Google mail (Gmail) accounts 

       quit        = Do not change anything 

  Command >> dovecot 

            imap_server_type = dovecot 
            default_folder_prefix = <none> 
            trash_folder = Trash 
            sent_folder = Sent 
            draft_folder = Drafts 
            show_prefix_option = false 
            default_sub_of_inbox = false 
            show_contain_subfolders_
            option = false optional_
            delimiter = detect 
            delete_folder = false 

Press any key to continue... <-- press a key  


SquirrelMail Configuration : Read: config.php (1.4.0)
 --------------------------------------------------------- 
Main Menu -- 
1.  Organization Preferences 
2.  Server Settings 
3.  Folder Defaults 
4.  General Options 
5.  Themes 
6.  Address Books 
7.  Message of the Day (MOTD) 
8.  Plugins 
9.  Database 
10. Languages 

D.  Set pre-defined settings for specific IMAP servers 

C   Turn color on 
S   Save data 
Q   Quit 

Command >> <-- S 


SquirrelMail Configuration : Read: config.php (1.4.0) 
--------------------------------------------------------- 
Main Menu -- 
1.  Organization Preferences 
2.  Server Settings 
3.  Folder Defaults 
4.  General Options 
5.  Themes 
6.  Address Books 
7.  Message of the Day (MOTD) 
8.  Plugins 
9.  Database 
10. Languages 

D.  Set pre-defined settings for specific IMAP servers 

C   Turn color on 
S   Save data 
Q   Quit 

Command >> <-- Q

Now we will configure SquirrelMail so that you can use it from within your web sites (created through ISPConfig) by using the /squirrelmail or /webmail aliases. So if your website is www.server.com, you will be able to access SquirrelMail using www.server.com/squirrelmail or www.server.com/webmail.

SquirrelMail’s Apache configuration is in the file /etc/squirrelmail/apache.conf, but this file isn’t loaded by Apache because it is not in the /etc/apache2/conf.d/ directory. Therefore we create a symlink called squirrelmail.conf in the /etc/apache2/conf.d/ directory that points to /etc/squirrelmail/apache.conf and reload Apache afterwards:

cd /etc/apache2/conf.d/
ln -s ../../squirrelmail/apache.conf squirrelmail.conf
/etc/init.d/apache2 reload

Now open /etc/apache2/conf.d/squirrelmail.conf…

 nano /etc/apache2/conf.d/squirrelmail.conf

… and add the following lines to the <Directory /usr/share/squirrelmail></Directory> container that make sure that mod_php is used for accessing SquirrelMail, regardless of what PHP mode you select for your website in ISPConfig:

[...]
<Directory /usr/share/squirrelmail>
  Options FollowSymLinks
  <IfModule mod_php5.c>
    AddType application/x-httpd-php .php
    php_flag magic_quotes_gpc Off
    php_flag track_vars On
    php_admin_flag allow_url_fopen Off
    php_value include_path .
    php_admin_value upload_tmp_dir /var/lib/squirrelmail/tmp
    php_admin_value open_basedir /usr/share/squirrelmail:/etc/squirrelmail:/var/lib/squirrelmail:/etc/hostname:/etc/mailname
    php_flag register_globals off
  </IfModule>
  <IfModule mod_dir.c>
    DirectoryIndex index.php
  </IfModule>

  # access to configtest is limited by default to prevent information leak
  <Files configtest.php>
    order deny,allow
    deny from all
    allow from 127.0.0.1
  </Files>
</Directory>
[...]

Create the directory /var/lib/squirrelmail/tmp…

mkdir /var/lib/squirrelmail/tmp

… and make it owned by the user www-data:

chown www-data /var/lib/squirrelmail/tmp

Reload Apache again:

/etc/init.d/apache2 reload

That’s it already - /etc/apache2/conf.d/squirrelmail.conf defines an alias called /squirrelmail that points to SquirrelMail’s installation directory /usr/share/squirrelmail.

You can now access SquirrelMail from your web site as follows:

http://192.168.1.100/squirrelmail

http://www.server.com/squirrelmail

You can also access it from the ISPConfig control panel vhost (after you have installed ISPConfig, see the next chapter) as follows (this doesn’t need any configuration in ISPConfig):

http://demo.server.com:8080/squirrelmail

If you’d like to use the alias /webmail instead of /squirrelmail, simply open /etc/apache2/conf.d/squirrelmail.conf…

 nano /etc/apache2/conf.d/squirrelmail.conf

… and add the line Alias /webmail /usr/share/squirrelmail:

Alias /squirrelmail /usr/share/squirrelmail
Alias /webmail /usr/share/squirrelmail
[...]

Then reload Apache:

/etc/init.d/apache2 reload

Now you can access Squirrelmail as follows:

http://192.168.1.100/webmail

http://www.server.com/webmail

http://demo.server.com:8080/webmail (after you have installed ISPConfig, see the next chapter)

If you’d like to define a vhost like webmail.example.com where your users can access SquirrelMail, you’d have to add the following vhost configuration to/etc/apache2/conf.d/squirrelmail.conf:

 nano /etc/apache2/conf.d/squirrelmail.conf

[...]
<VirtualHost 1.2.3.4:80>
  DocumentRoot /usr/share/squirrelmail
  ServerName webmail.example.com
</VirtualHost>

Make sure you replace 1.2.3.4 with the correct IP address of your server. Of course, there must be a DNS record for webmail.example.com that points to the IP address that you use in the vhost configuration. Also make sure that the vhost webmail.example.com does not exist in ISPConfig (otherwise both vhosts will interfere with each other!).

Now reload Apache…

/etc/init.d/apache2 reload

… and you can access SquirrelMail under http://webmail.server.com!

Install ISPConfig 3

To install ISPConfig 3 from the latest released version, do this:

cd /tmp
wget http://www.ispconfig.org/downloads/ISPConfig-3-stable.tar.gz
tar xfz ISPConfig-3-stable.tar.gz
cd ispconfig3_install/install/

The next step is to run

php -q install.php

This will start the ISPConfig 3 installer. The installer will configure all services like Postfix, Dovecot, etc. for you. A manual setup as required for ISPConfig 2 (perfect setup guides) is not necessary.

root@demo:/tmp/ispconfig3_install/install# php -q install.php
PHP Deprecated:  Comments starting with '#' are deprecated in /etc/php5/cli/conf.d/ming.ini on line 1 in Unknown on line 0


--------------------------------------------------------------------------------
 _____ ___________   _____              __ _         ____
|_   _/  ___| ___  /  __             / _(_)       /__  
  | |  `--.| |_/ / | /  / ___  _ __ | |_ _  __ _    _/ /
  | |  `--.   __/  | |    / _ | '_ |  _| |/ _` |  |_ |
 _| |_/__/ / |     | __/ (_) | | | | | | | (_| | ___ 
 ___/____/_|      ____/___/|_| |_|_| |_|__, | ____/
                                              __/ |
                                             |___/
--------------------------------------------------------------------------------


>> Initial configuration

Operating System: Debian or compatible, unknown version.

    Following will be a few questions for primary configuration so be careful.
    Default values are in [brackets] and can be accepted with <ENTER>.
    Tap in "quit" (without the quotes) to stop the installer.


Select language (en,de) [en]: <-- ENTER

Installation mode (standard,expert) [standard]: <-- ENTER

Full qualified hostname (FQDN) of the server, eg server1.domain.tld  [demo.server.com]: <-- ENTER

MySQL server hostname [localhost]: <-- ENTER

MySQL root username [root]: <-- ENTER

MySQL root password []: <-- yourrootsqlpassword

MySQL database to create [dbispconfig]: <-- ENTER

MySQL charset [utf8]: <-- ENTER

Generating a 4096 bit RSA private key
.............................................................++
.........................................................................................................................++
writing new private key to 'smtpd.key'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]: <-- ENTER
State or Province Name (full name) [Some-State]: <-- ENTER
Locality Name (eg, city) []: <-- ENTER
Organization Name (eg, company) [Internet Widgits Pty Ltd]: <-- ENTER
Organizational Unit Name (eg, section) []: <-- ENTER
Common Name (e.g. server FQDN or YOUR name) []: <-- ENTER
Email Address []: <-- ENTER
Configuring Jailkit
Configuring Dovecot
Configuring Spamassassin
Configuring Amavisd
Configuring Getmail
Configuring Pureftpd
Configuring BIND
Configuring Apache
Configuring Vlogger
Configuring Apps vhost
Configuring Bastille Firewall
Configuring Fail2ban
Installing ISPConfig
ISPConfig Port [8080]: <-- ENTER

Do you want a secure (SSL) connection to the ISPConfig web interface (y,n) [y]: <-- ENTER

Generating RSA private key, 4096 bit long modulus
.................................................................................................++
........++
e is 65537 (0x10001)
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]: <-- ENTER
State or Province Name (full name) [Some-State]: <-- ENTER
Locality Name (eg, city) []: <-- ENTER
Organization Name (eg, company) [Internet Widgits Pty Ltd]: <-- ENTER
Organizational Unit Name (eg, section) []: <-- ENTER
Common Name (e.g. server FQDN or YOUR name) []: <-- ENTER
Email Address []: <-- ENTER

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []: <-- ENTER
An optional company name []: <-- ENTER
writing RSA key
Configuring DBServer
Installing ISPConfig crontab
no crontab for root
no crontab for getmail
Restarting services ...
Stopping MySQL database server: mysqld.
Starting MySQL database server: mysqld ..
Checking for tables which need an upgrade, are corrupt or were
not closed cleanly..
Stopping Postfix Mail Transport Agent: postfix.
Starting Postfix Mail Transport Agent: postfix.
Stopping amavisd: amavisd-new.
Starting amavisd: amavisd-new.
Stopping ClamAV daemon: clamd.
Starting ClamAV daemon: clamd .
Restarting IMAP/POP3 mail server: dovecot.
[Tue May 07 02:36:22 2013] [warn] NameVirtualHost *:443 has no VirtualHosts
[Tue May 07 02:36:22 2013] [warn] NameVirtualHost *:80 has no VirtualHosts
[Tue May 07 02:36:23 2013] [warn] NameVirtualHost *:443 has no VirtualHosts
[Tue May 07 02:36:23 2013] [warn] NameVirtualHost *:80 has no VirtualHosts
Restarting web server: apache2 ... waiting .
Restarting ftp server: Running: /usr/sbin/pure-ftpd-mysql-virtualchroot -l mysql:/etc/pure-ftpd/db/mysql.conf -l pam -H -O clf:/var/log/pure-ftpd/transfer.log -Y 1 -D -u 1000 -A -E -b -8 UTF-8 -B
Installation completed.
root@server1:/tmp/ispconfig3_install/install#

The installer automatically configures all underlying services, so no manual configuration is needed.

You now also have the possibility to let the installer create an SSL vhost for the ISPConfig control panel, so that ISPConfig can be accessed using https:// instead of http://. To achieve this, just press ENTER when you see this question: Do you want a secure (SSL) connection to the ISPConfig web interface (y,n) [y]:.

Afterwards you can access ISPConfig 3 under http(s)://demo.server.com:8080/ or http(s)://192.168.0.100:8080/ ( http or https depends on what you chose during installation). Log in with the username admin and the password admin (you should change the default password after your first login):

In order to learn how to use ISPConfig 3, I strongly recommend to download the ISPConfig 3 Manual.

Install And Configure munin

To install munin on Debian Lenny, we do this:

aptitude install munin munin-node

Next, we must edit the munin configuration file /etc/munin/munin.conf. We want munin to put its output into the directory /var/www/www.server.com/web/monitoring, therefore we change the value of htmldir, and we want it to use the name demo.server.com instead of localhost.localdomain in the HTML output, therefore we replace localhost.localdomain with demo.server.com. Without the comments, the changed file looks like this:

nano /etc/munin/munin.conf

dbdir   /var/lib/munin
htmldir /var/www/www.example.com/web/monitoring
logdir  /var/log/munin
rundir  /var/run/munin

tmpldir /etc/munin/templates

[server1.example.com]
    address 127.0.0.1
    use_node_name yes

Next we create the directory /var/www/www.server.com/web/monitoring and change its ownership to the user and group munin, otherwise munin cannot place its output in that directory. Then we restart munin:

mkdir -p /var/www/www.server.com/web/monitoring
chown munin:munin /var/www/www.server.com/web/monitoring
/etc/init.d/munin-node restart

Now wait a few minutes so that munin can produce its first output, and then go to http://www.example.com/monitoring/ in your browser, and you see the first statistics. After a few days this could look like this:

Password-Protect The munin Output Directory

Now it is a good idea to password-protect the directory /var/www/www.server.com/web/monitoring unless you want everybody to be able to see every little statistic about your server.

To do this, we create an .htaccess file in /var/www/www.server.com/web/monitoring:

 nano /var/www/www.server.com/web/monitoring/.htaccess

AuthType Basic
AuthName "Members Only"
AuthUserFile /var/www/www.server.com/.htpasswd
<limit GET PUT POST>
require valid-user
</limit>

Then we must create the password file /var/www/www.example.com/.htpasswd. We want to log in with the username admin, so we do this:

htpasswd -c /var/www/www.example.com/.htpasswd admin

Enter a password for admin, and you’re done!

Install And Configure monit

To install monit, we do this:

aptitude install monit

Now we must edit /etc/monit/monitrc. The default /etc/monit/monitrc has lots of examples, and you can find more configuration examples on Monit - utility for monitoring services on a Unix system. However, in my case I want to monitor proftpd, sshd, mysql, apache, and postfix, I want to enable the monit web interface on port 2812, I want a https web interface, I want to log in to the web interface with the username admin and the password test, and I want monit to send email alerts to root@demo, so my file looks like this:

cp /etc/monit/monitrc /etc/monit/monitrc_orig
cat /dev/null > /etc/monit/monitrc
vi /etc/monit/monitrc
set daemon  60
set logfile syslog facility log_daemon
set mailserver localhost
set mail-format { from: monit@demo.server.com }
set alert root@localhost
set httpd port 2812 and
     ssl enable
     PEMFILE  /var/certs/monit.pem
     allow admin:test

check process proftpd with pidfile /var/run/proftpd.pid
   start program = "/etc/init.d/proftpd start"
   stop program  = "/etc/init.d/proftpd stop"
   if failed port 21 protocol ftp then restart
   if 5 restarts within 5 cycles then timeout

check process sshd with pidfile /var/run/sshd.pid
   start program  "/etc/init.d/ssh start"
   stop program  "/etc/init.d/ssh stop"
   if failed port 22 protocol ssh then restart
   if 5 restarts within 5 cycles then timeout

check process mysql with pidfile /var/run/mysqld/mysqld.pid
   group database
   start program = "/etc/init.d/mysql start"
   stop program = "/etc/init.d/mysql stop"
   if failed host 127.0.0.1 port 3306 then restart
   if 5 restarts within 5 cycles then timeout

check process apache with pidfile /var/run/apache2.pid
   group www
   start program = "/etc/init.d/apache2 start"
   stop program  = "/etc/init.d/apache2 stop"
   if failed host www.example.com port 80 protocol http
      and request "/monit/token" then restart
   if cpu is greater than 60% for 2 cycles then alert
   if cpu > 80% for 5 cycles then restart
   if totalmem > 500 MB for 5 cycles then restart
   if children > 250 then restart
   if loadavg(5min) greater than 10 for 8 cycles then stop
   if 3 restarts within 5 cycles then timeout

check process postfix with pidfile /var/spool/postfix/pid/master.pid
   group mail
   start program = "/etc/init.d/postfix start"
   stop  program = "/etc/init.d/postfix stop"
   if failed port 25 protocol smtp then restart
   if 5 restarts within 5 cycles then timeout

The configuration file is pretty self-explaining; if you are unsure about an option, take a look at the monit documentation: Monit - utility for monitoring services on a Unix system

In the apache part of the monit configuration you find this:

if failed host www.server.com port 80 protocol http

and request "/monit/token" then restart

which means that monit tries to connect to www.server.com on port 80 and tries to access the file /monit/token which is /var/www/www.server.com/web/monit/token because our web site’s document root is /var/www/www.server.com/web. If monit doesn’t succeed it means Apache isn’t running, and monit is going to restart it. Now we must create the file/var/www/www.server.com/web/monit/token and write some random string into it:

mkdir /var/www/www.server.com/web/monit
echo "hello" > /var/www/www.server.com/web/monit/token

Next we create the pem cert (/var/certs/monit.pem) we need for the SSL-encrypted monit web interface:

mkdir /var/certs
cd /var/certs

We need an OpenSSL configuration file to create our certificate. It can look like this:

 nano /var/certs/monit.cnf

# create RSA certs - Server

RANDFILE = ./openssl.rnd

[ req ]
default_bits = 1024
encrypt_key = yes
distinguished_name = req_dn
x509_extensions = cert_type

[ req_dn ]
countryName = Country Name (2 letter code)
countryName_default = MO

stateOrProvinceName             = State or Province Name (full name)
stateOrProvinceName_default     = Monitoria

localityName                    = Locality Name (eg, city)
localityName_default            = Monittown

organizationName                = Organization Name (eg, company)
organizationName_default        = Monit Inc.

organizationalUnitName          = Organizational Unit Name (eg, section)
organizationalUnitName_default  = Dept. of Monitoring Technologies

commonName                      = Common Name (FQDN of your server)
commonName_default              = server.monit.mo

emailAddress                    = Email Address
emailAddress_default            = root@monit.mo

[ cert_type ]
nsCertType = server

Now we create the certificate like this:

openssl req -new -x509 -days 365 -nodes -config ./monit.cnf -out /var/certs/monit.pem -keyout /var/certs/monit.pem
openssl gendh 512 >> /var/certs/monit.pem
openssl x509 -subject -dates -fingerprint -noout -in /var/certs/monit.pem
chmod 700 /var/certs/monit.pem

Afterwards we edit /etc/default/monit to enable the monit daemon. Change startup to 1 and set CHECK_INTERVALS to the interval in seconds that you would like monit to check your system. I choose 60 (seconds) so my file looks like this:

vi /etc/default/monit
# Defaults for monit initscript
# sourced by /etc/init.d/monit
# installed at /etc/default/monit by maintainer scripts
# Fredrik Steen <stone@debian.org>

# You must set this variable to for monit to start
startup=1

# To change the intervals which monit should run uncomment
# and change this variable.
CHECK_INTERVALS=60

Finally, we can start monit:

/etc/init.d/monit start

Now point your browser to https://www.server.com:2812/ (make sure port 2812 isn’t blocked by your firewall), log in with admin and test, and you should see the monit web interface. It should look like this:

Install RainLoop

SIMPLE, MODERN & FAST WEB-BASED EMAIL CLIENT

move to

cd /var/www/

You can also deploy the latest version of the application without a need to deal with zip archive, just run one of the following commands in your terminal:

curl -s http://repository.rainloop.net/installer.php | php

or

wget -qO- http://repository.rainloop.net/installer.php | php

Upon uploading the package content, be sure to configure permissions for files and directories.

This is all you have to do in order to ensure running the application with its default configuration.

The product will create all the required files on first run, and it will report an error if any requirement is not met.

Source: Debian Server: How to