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The Perfect Server – Debian 12 (Bookworm) with Apache, BIND, Dovecot, PureFTPD and ISPConfig 3.2

This tutorial shows how to prepare a Debian 12 server (with Apache2, BIND, Dovecot) for the installation of ISPConfig 3.2, and how to install ISPConfig. The web hosting control panel ISPConfig 3 allows you to configure the following services through a web browser: Apache or nginx web server, Postfix mail server, Dovecot IMAP/POP3 server, MySQL, BIND nameserver, PureFTPd, Rspamd or Amavis, ClamAV, and many more. This setup covers Apache (instead of nginx), BIND, and Dovecot with Rspamd spam scanner.

This tutorial shows the manual installation procedure for ISPConfig, which takes some time but gives you full control over all installation steps. The fast and easy installation method (which we highly recommend!) is to use the ISPConfig auto-installer instead. You can find the ISPConfig installation tutorial for the auto-installer here: https://www.howtoforge.com/ispconfig-autoinstall-debian-ubuntu/

1 Preliminary Note

In this tutorial, I will use the hostname server1.example.com with IP addresses 192.168.0.100 and gateway 192.168.0.1. These settings might differ for you, so you have to replace them where appropriate. Before proceeding further, you need to have a minimal installation of Debian 12. This might be a Debian minimal image from your hosting provider, or you can use the Minimal Debian Server tutorial to set up the base system.

All commands below must be run by the root user. Either log in as the root user directly or log in as your regular user and then use the command

su --login

to become the root user on your server before you proceed. IMPORTANT: You must use ‘su -login’ or ‘su -‘ and not just ‘su’. Otherwise, your PATH variable is set wrong by su.

Ensure that your /etc/apt/sources.list contains the bookworm-updates repository (this ensures you always get the newest updates), and that the contrib, non-free and non-free-firmware repositories are enabled.

nano /etc/apt/sources.list
#deb cdrom:[Debian GNU/Linux 12.1.0 _Bookworm_ - Official amd64 NETINST with firmware 20230722-10:48]/ bookworm main non-free-firmware

deb http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb http://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware
deb-src http://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

# bookworm-updates, to get updates before a point release is made;
# see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports
deb http://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.

Save the file.

2 Install the SSH server (Optional)

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

Apt install ssh openssh-server

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

3 Install a shell text editor (Optional)

We will use nano text editor in this tutorial. Some users prefer the classic vi editor. Therefore, we will install both editors here. The default vi program has some strange behavior on Debian and Ubuntu; to fix this, we install vim-nox:

apt install nano vim-nox

If vi is your favorite editor, replace nano with vi in the following commands to edit files.

4 Configure the Hostname

The hostname of your server should be a subdomain like “server1.example.com”. Do not use a domain name without a subdomain part, like “example.com” as the hostname, as this will cause problems later with your mail setup. First, you should check the hostname in /etc/hosts and change it when necessary. The line should be: “IP Address – space – full hostname incl. domain – space – subdomain part”. For our hostname server1.example.com, the file shall look like this:

nano /etc/hosts
127.0.0.1       localhost.localdomain   localhost
192.168.0.100   server1.example.com     server1

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Then edit the /etc/hostname file:

nano /etc/hostname

It shall contain only the subdomain part, in our case:

server1

Finally, reboot the server to apply the change:

systemctl reboot

Log in again and check if the hostname is correct now with these commands:

hostname
hostname -f

The output shall be like this:

root@server1:/tmp# hostname
server1
root@server1:/tmp# hostname -f
server1.example.com

5 Update your Debian Installation

First, ensure that your /etc/apt/sources.list contains the bookworm/updates repository (this ensures you always get the newest security updates), and that the contrib, non-free and non-free-firmware repositories are enabled, as some required packages are not in the main repository.

nano /etc/apt/sources.list
#deb cdrom:[Debian GNU/Linux 12.1.0 _Bookworm_ - Official amd64 NETINST with firmware 20230722-10:48]/ bookworm main non-free-firmware

deb http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb http://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware
deb-src http://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

# bookworm-updates, to get updates before a point release is made;
# see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports
deb http://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.

Run:

apt update

To update the apt package database

apt upgrade

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

6 Synchronize the System Clock

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

apt -y install ntp

and your system time will always be in sync.

7 Install Postfix, Dovecot, MariaDB, rkhunter, and Binutils

We can install Postfix, Dovecot, MariaDB as a MySQL alternative, rkhunter, and Binutils with a single command:

apt -y install postfix postfix-mysql postfix-doc mariadb-client mariadb-server openssl getmail6 rkhunter binutils dovecot-imapd dovecot-pop3d dovecot-mysql dovecot-sieve dovecot-lmtpd sudo curl rsyslog wget gnupg2 lsb-release ufw rsyslog

You will be asked the following questions:

General type of mail configuration: <– Internet Site
System mail name: <– server1.example.com

To secure the MariaDB installation and to disable the test database, run this command:

mysql_secure_installation

Answer the questions as follows:

Switch to unix_socket authentication [Y/n] <-- n
Change the root password? [Y/n] <-- y
New password: <-- Enter new password
Re-enter new password: <-- Repeat new password
Remove anonymous users? [Y/n] <-- y
Disallow root login remotely? [Y/n] <-- y
Remove test database and access to it? [Y/n] <-- y
Reload privilege tables now? [Y/n] <-- y

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

nano /etc/postfix/master.cf

Uncomment the submission and submissions sections as follows and add lines where necessary for this section of the master.cf file looks exactly like the one below.
IMPORTANT: Remove the # in front of the lines that start with submissions and submission, too, and not just from the -o lines after these lines!

[...]
#127.0.0.1:submission inet n -   y       -       -       smtpd
submission inet n       -       y       -       -       smtpd
  -o syslog_name=postfix/submission
  -o smtpd_tls_security_level=encrypt
  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_tls_auth_only=yes
#  -o smtpd_reject_unlisted_recipient=no
#     Instead of specifying complex smtpd__restrictions here,
#     specify "smtpd__restrictions=$mua__restrictions"
#     here, and specify mua__restrictions in main.cf (where
#     "" is "client", "helo", "sender", "relay", or "recipient").
#  -o smtpd_client_restrictions=
#  -o smtpd_helo_restrictions=
#  -o smtpd_sender_restrictions=
#  -o smtpd_relay_restrictions=
#  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
# Choose one: enable submissions for loopback clients only, or for any client.
#127.0.0.1:submissions inet n  -       y       -       -       smtpd
submissions     inet  n       -       y       -       -       smtpd
  -o syslog_name=postfix/submissions
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_reject_unlisted_recipient=no
#     Instead of specifying complex smtpd__restrictions here,
#     specify "smtpd__restrictions=$mua__restrictions"
#     here, and specify mua__restrictions in main.cf (where
#     "" is "client", "helo", "sender", "relay", or "recipient").
#  -o smtpd_client_restrictions=
#  -o smtpd_helo_restrictions=
#  -o smtpd_sender_restrictions=
#  -o smtpd_relay_restrictions=
#  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#628       inet  n       -       y       -       -       qmqpd
[...]

Restart Postfix afterward:

systemctl restart postfix

If you want MySQL to listen on all interfaces, not just localhost, to allow access to MySQL from desktop tools, then edit /etc/mysql/mariadb.conf.d/50-server.cnf and comment out the line bind-address = 127.0.0.1 by adding a # in front of it.

nano /etc/mysql/mariadb.conf.d/50-server.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

[...]

Edit the file /etc/mysql/debian.cnf and set the MYSQL / MariaDB root password there twice in the rows that start with the word password.

nano /etc/mysql/debian.cnf

The MySQL root password that needs to be added is shown in red. In this example, the password is “howtoforge”.

# Automatically generated for Debian scripts. DO NOT TOUCH!
[client]
host = localhost
user = root
password = "howtoforge"
[mysql_upgrade]
host = localhost
user = root
password = "howtoforge"

To prevent the error ‘Error in accept: Too many open files‘ we will set higher open file limits for MariaDB now.

Open the file /etc/security/limits.conf with an editor:

nano /etc/security/limits.conf

and add these lines at the end of the file.

mysql soft nofile 65535
mysql hard nofile 65535

Next, create a new directory /etc/systemd/system/mysql.service.d/ with the mkdir command.

mkdir -p /etc/systemd/system/mysql.service.d/

and add a new file inside:

nano /etc/systemd/system/mysql.service.d/limits.conf

paste the following lines into that file:

[Service]
LimitNOFILE=infinity

Save the file and close the nano editor.

Then we reload systemd and restart MariaDB:

systemctl daemon-reload
systemctl restart mariadb

Now check that networking is enabled. Run

netstat -tap | grep mysql

The output should look like this:

root@server1:/home/administrator# netstat -tap | grep mysql
tcp6 0 0 [::]:mysql [::]:* LISTEN 16623/mysqld

8 Install Email filter and signing software Rspamd and ClamAV

Add the Rspamd repository:

CODENAME=`lsb_release -c -s`
wget -qO- https://rspamd.com/apt-stable/gpg.key | tee /etc/apt/trusted.gpg.d/rspamd.asc > /dev/null
echo "deb [arch=amd64] http://rspamd.com/apt-stable/ $CODENAME main" > /etc/apt/sources.list.d/rspamd.list
echo "deb-src [arch=amd64] http://rspamd.com/apt-stable/ $CODENAME main" >> /etc/apt/sources.list.d/rspamd.list

To install Rspamd and ClamAV, we run

apt install rspamd redis clamav clamav-daemon unzip bzip2 arj nomarch lzop cabextract p7zip p7zip-full unrar lrzip 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 libdbd-mysql-perl postgrey -y

Activate Redis in Rspamd configuration.

echo 'servers = "127.0.0.1";' > /etc/rspamd/local.d/redis.conf

Increase the Rspamd history, enable compression and show the subject in the history. This step is optional.

echo "nrows = 2500;" > /etc/rspamd/local.d/history_redis.conf 
echo "compress = true;" >> /etc/rspamd/local.d/history_redis.conf
echo "subject_privacy = true;" >> /etc/rspamd/local.d/history_redis.conf

Then restart Rspamd.

systemctl restart rspamd

9 Install Apache Web Server and PHP

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

apt -y install apache2 apache2-utils php8.2 php8.2-fpm php8.2-common php8.2-gd php8.2-mysql php8.2-imap php8.2-cli php8.2-cgi libapache2-mod-fcgid apache2-suexec-pristine php-pear mcrypt imagemagick libruby libapache2-mod-python php8.2-curl php8.2-intl php8.2-pspell php8.2-sqlite3 php8.2-tidy php8.2-xmlrpc php8.2-xsl memcached php-memcache php-imagick php8.2-zip php8.2-mbstring memcached libapache2-mod-passenger php8.2-soap php8.2-opcache php-apcu libapache2-reload-perl php8.2-mcrypt

Now enable php-fpm in Apache:

a2enmod proxy_fcgi setenvif
a2enconf php8.2-fpm

Then run the following command to enable the additional 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 dav_fs dav auth_digest cgi headers actions alias

To ensure that the server cannot be attacked through the HTTPOXY vulnerability, we will disable the HTTP_PROXY header globally by adding the configuration file /etc/apache2/conf-available/httpoxy.conf.

Note: The vulnerability is named httpoxy (without ‘r’) and therefore the file where we add the config to prevent it is named httpoxy.conf and not httproxy.conf, so there is no ‘r’ missing in the filename.

nano /etc/apache2/conf-available/httpoxy.conf

Paste the following content to the file:


    RequestHeader unset Proxy early

And enable the module by running:

a2enconf httpoxy
systemctl restart apache2

10 Install Let’s Encrypt

ISPConfig is using acme.sh now as Let’s Encrypt client. Install acme.sh using the following command:

curl https://get.acme.sh | sh -s

Then set the SSL issuing authority to Let’s Encrypt:

acme.sh --set-default-ca --server letsencrypt

11 Install PureFTPd and Quota

PureFTPd and quota can be installed with the following command:

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

Create the dhparam file for pure-ftpd:

openssl dhparam -out /etc/ssl/private/pure-ftpd-dhparams.pem 2048

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

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., "DE").
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 Organization Name (e.g., the name of your company).
Organizational Unit Name (eg, section) []: <-- Enter your Organizational Unit Name (e.g. "IT Department").
Common Name (eg, YOUR name) []: <-- Enter the Fully Qualified Domain Name of the system (e.g. "server1.example.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:

systemctl restart pure-ftpd-mysql

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).
#
#
# / was on /dev/sda1 during installation
UUID=45576b38-39e8-4994-b8c1-ea4870e2e614 / ext4 errors=remount-ro,usrjquota=quota.user,grpjquota=quota.group,jqfmt=vfsv0 0 1
# swap was on /dev/sda5 during installation
UUID=8bea0d1e-ec37-4b20-9976-4b7daaa3eb69 none swap sw 0 0
/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0

To enable quota, run these commands:

mount -o remount /
systemctl daemon-reload
quotacheck -avugm
quotaon -avug

You will get the message “quotaon: Your kernel probably supports ext4 quota feature, but you are using external quota files. Please switch your filesystem to use ext4 quota feature as external quota files on ext4 are deprecated.” which is ok and can be ignored.

12 Install BIND DNS Server

BIND can be installed as follows:

apt install bind9 dnsutils

 If your server is a virtual machine, then it is highly recommended to install the haveged daemon to get a higher entropy for DNSSEC signing. You can install haveged on nonvirtual servers as well, it should not hurt.

apt install haveged

An explanation of that topic can be found here.

13 Install Webalizer replacement awffull, AWStats and GoAccess

Webalizer and AWStats can be installed as follows:

apt install awffull awstats geoip-database libclass-dbi-mysql-perl libtimedate-perl

Create the webalizer directory and symlink so awffull is recognized as webalizer:

mkdir /etc/webalizer
chmod 0755 /etc/webalizer
ln -s /etc/awffull/awffull.conf /etc/webalizer/webalizer.conf
ln -s /usr/bin/awffull /usr/bin/webalizer

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

Installing the latest GoAccess version directly from the GoAccess repository:

echo "deb https://deb.goaccess.io/ $(lsb_release -cs) main" | tee -a /etc/apt/sources.list.d/goaccess.list
wget -O - https://deb.goaccess.io/gnugpg.key | tee /etc/apt/trusted.gpg.d/goaccess.asc >/dev/null
apt update
apt install goaccess

14 Install Jailkit

Jailkit is needed only if you want to chroot SSH users. It can be installed as follows:

apt install jailkit

15 Install fail2ban and UFW Firewall

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

apt install fail2ban

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

nano /etc/fail2ban/jail.local

And add the following configuration to it.

[pure-ftpd]
enabled = true
port = ftp
filter = pure-ftpd
logpath = /var/log/syslog
maxretry = 3

[dovecot]
enabled = true
filter = dovecot
logpath = /var/log/mail.log
maxretry = 5

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

Restart fail2ban afterwards:

systemctl restart fail2ban

To install the UFW firewall, run this apt command:

apt install ufw

Install phpMyAdmin with apt:

apt install phpmyadmin

Chose to enable phpMyAdmin in Apache:

Configure PHPMyAdmin using dbconfig common.

Leave the application password field empty and press return. Apt will create a secure random password automatically, and you do not need to know this password to access PHPMyAdmin later.

17 Install RoundCube Webmail (optional)

In this chapter, we will install the RoundCube webmail client.

Then install RoundCube with this command:

apt install roundcube roundcube-core roundcube-mysql roundcube-plugins

The installer will ask the following questions:

Configure database for roundcube with dbconfig.common? <-- yes
MySQL application password for roundcube: <-- press enter

Then edit the Apache RoundCube configuration file /etc/apache2/conf-enabled/roundcube.conf:

nano /etc/apache2/conf-enabled/roundcube.conf

And add an alias line for the apache /webmail alias and one for /roundcube, you can add the line right at the beginning of the file. NOTE: Do not use /mail as alias or the ispconfig email module will stop working!

Alias /roundcube /var/lib/roundcube/public_html
Alias /webmail /var/lib/roundcube/public_html

Then reload Apache:

systemctl reload apache2

Now edit the RoundCube Configuration file:

nano /etc/roundcube/config.inc.php

And change the line:

$config['smtp_host'] = 'localhost:587';

to:

$config['smtp_host'] = 'localhost:25';

Now you can access RoundCube as follows:

https://192.168.0.100:8081/webmail
https://www.example.com:8081/webmail

After you have installed ISPConfig, see the next chapter.

Some plugins exist to integrate RoundCube Webmail with ISPConfig, have a look here for the ISPConfig RoundCube plugin installation instructions.

18 Download ISPConfig 3.2

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/

19 Install ISPConfig

The next step is to run the ISPConfig installer.

php -q install.php

This will start the ISPConfig 3 installer. The installer will configure all services, like Postfix, Dovecot, etc., for you.

php -q install.php

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

>> Initial configuration
Operating System: Debian 12.0 (Bookworm) or compatible
    Following will be a few questions for primary configuration so be careful.
    Default values are in [brackets] and can be accepted with .
    Tap in "quit" (without the quotes) to stop the installer.

Select language (en,de) [en]: <-- press enter
Installation mode (standard,expert) [standard]: <-- press enter
Full qualified hostname (FQDN) of the server, eg server1.domain.tld  [server1.example.com]: <-- press enter
MySQL server hostname [localhost]: <-- press enter
MySQL server port [3306]: <-- press enter
MySQL root username [root]: <-- press enter
MySQL root password []: <-- enter the MySQL root password
MySQL database to create [dbispconfig]: <-- press enter
MySQL charset [utf8]:
Checking MariaDB version 10.11.3 .. OK
Configuring Postgrey
Configuring Postfix
[....]
-----
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 country code
State or Province Name (full name) [Some-State]: <-- Enter state
Locality Name (eg, city) []: <-- Enter City
Organization Name (eg, company) [Internet Widgits Pty Ltd]: <-- Enter company name
Organizational Unit Name (eg, section) []: <-- press enter
Common Name (e.g. server FQDN or YOUR name) []: <-- Enter server hostname
Email Address []: <-- Enter email address
[INFO] service Mailman not detected
Configuring Dovecot
Creating new DHParams file, this takes several minutes. Do not interrupt the script.
Generating DH parameters, 2048 bit long safe prime
[.....]
[INFO] service Spamassassin not detected
[INFO] service Amavisd not detected
Configuring Rspamd
Configuring Getmail
Configuring Jailkit
Configuring Pureftpd
Configuring BIND
Configuring Apache
Configuring vlogger
[INFO] service OpenVZ not detected
Configuring AppArmor
Configuring Ubuntu Firewall
[INFO] service Metronome XMPP Server not detected
Configuring Fail2ban
Installing ISPConfig
ISPConfig Port [8080]: <-- press enter
Admin password [8563a921]: <-- Enter your ISPConfig admin password, or press enter to accept the one that is shown
Do you want a secure (SSL) connection to the ISPConfig web interface (y,n) [y]: <-- press enter
Checking / creating certificate for server1.example.com
Using certificate path /etc/letsencrypt/live/server1.example.com
Server's public ip(s) (91.38.138.191, 2003:e1:bf42:2500:20c:29ff:fe32:617f) not found in A/AAAA records for server1.example.com:
Ignore DNS check and continue to request certificate? (y,n) [n]: <-- press enter
Could not issue letsencrypt certificate, falling back to self-signed.
[....]
-----
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 country code
State or Province Name (full name) [Some-State]: <-- Enter state
Locality Name (eg, city) []: <-- Enter City
Organization Name (eg, company) [Internet Widgits Pty Ltd]: <-- Enter company name
Organizational Unit Name (eg, section) []: <-- press enter
Common Name (e.g. server FQDN or YOUR name) []: <-- Enter server hostname
Email Address []: <-- Enter email address
Symlink ISPConfig SSL certs to Postfix? (y,n) [y]: <-- press Enter
Symlink ISPConfig SSL certs to Pure-FTPd? Creating dhparam file may take some time. (y,n) [y]: <-- press Enter
Configuring Apps vhost
Configuring DBServer
Installing ISPConfig crontab
no crontab for getmail
Detect IP addresses
Restarting services ...
Installation completed.

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

Afterwards, you can access ISPConfig 3 under http(s)://server1.example.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):

The system is now ready to be used.

21 Virtual Machine Image Download of this Tutorial

This tutorial is available as a ready-to-use virtual machine image in ovf/ova format that is compatible with VMWare and Virtualbox. The virtual machine image uses the following login details:

SSH / Shell Login

Username: administrator
Password: howtoforge

Username: root
Password: howtoforge

ISPConfig Login

Username: admin
Password: howtoforge

MySQL Login

Username: root
Password: I7DFg3!cpHfw3bxZj6Fg

The IP of the VM is 192.168.0.100. It can be changed in the file /etc/network/interfaces. Please change all the above passwords to secure the virtual machine. 


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