Install ISPConfig on Ubuntu 20.04 LTS Focal Fossa

1. At first, make sure that all your system packages are up-to-date

   sudo apt update
   sudo apt upgrade

   To see upgradable Packages run ‘apt list –upgradable’

   • Configuring openssh-server
     A new version (/tmp/fileKeVqSI) of configuration file / etc/ssh/sshd_config is available, but the version installed currently has been locally modified.
     What do you want to do about modified configuration file sshd_config?
     │ install the package maintainer’s version
     │ keep the local version currently installed
     │ show the differences between the versions
     │ show a side-by-side difference between the versions
     │ show a 3-way difference between available versions
     │ do a 3-way merge between available versions
     │ start a new shell to examine the situation
     <Ok>
     Normally the best thing to do is to keep the currently installed if you’re on a VPS. But, if you didn’t touch the file and you know for sure that nothing will break by updating the defaults, then that’s the best option.
2. Setup Hostname.
   • Check the hostname in / etc/hosts and change it when necessary:

     vi / etc/hosts

     Add the following line:

     127.0.0.1 localhost.localdomain localhost
     # This line should be changed to the correct servername:
     127.0.1.1 myserver.bdhostit.com myserver
     
     # 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:

     vi / etc/hostname

     Add the following line:

     myserver

3. Reboot

   reboot

4. Now it’s time to Install ISPConfig 3 on Ubuntu 20.04 Log in again and check if the hostname

   hostname
   hostname -f

   • Download ISPConfig auto-installer

     wget -O - https://get.ispconfig.org | sh -s -- --help

     The installer automatically configures all underlying services, no manual configuration needed.
     When the installer is finished it will show you the ISPConfig admin and MySQL root password like this:

     [INFO] Your ISPConfig admin password is: adminpass
     [INFO] Your MySQL root password is: mysqlpass

   • If you can not get the INFO, you can now run the script with arguments. For example, if you want a normal install with a port range for Passive FTP + unattended-upgrades, run:

     wget -O - https://get.ispconfig.org | sh -s -- --use-ftp-ports=40110-40210 --unattended-upgrades

     Answer “yes” and hit enter. The installer will now start.

     WARNING! This script will reconfigure your complete server!
     It should be run on a freshly installed server and all current configuration that you have done will most likely be lost!

     Final Output

     [INFO] Installation ready.
     [INFO] Your Mailman password is: mailmanpass
     [INFO] Your ISPConfig admin password is: adminpass
     [INFO] Your MySQL root password is: mysqlrootpass
     [INFO] Warning: Please delete the log files in /tmp/ispconfig-ai/var/log/setup-* once you don't need them anymore because they contain your passwords!

   • Write down the password information. Delete the setup log file at /tmp/ispconfig-ai/var/log

     setup-1234567890.log

5. Now accessing ISPConfig Web Interface with admin password.

   https://myserver.bdhostit.com:8080

   You should change the default password after your first login

   • Setting up the firewall.
     • Go to System -> Firewall. Then click “Add new firewall record”
     • You can save the default port.
   • The necessary ports for every service are:Web: 20, 21, 22, 80, 443 and 40110:40210 (TCP ports)

     Mail: 25, 110, 143, 465, 587, 993, and 995 (TCP ports)

     DNS: 53 (TCP and UDP)

     Panel: 8080 and 8081 (TCP ports)