ISPConfig Installation Checklist on Ubuntu 20.04

Install ISPConfig on Ubuntu 20.04 LTS Focal Fossa

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.

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
```

Reboot
```
reboot
```

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
```

Now accessing ISPConfig Web Interface with admin password.
```
https://myserver.bdhostit.com:8080
```
You should change the default password after your first login
Change default SSH Port 22 to your choice
```
vi /etc/ssh/sshd_config
```
Setting up the firewall. Adding SSH port
- 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)

Update Instructions

Run this command on the shell of the server as root user:

ispconfig_update.sh

The ISPConfig updater will then check for new releases and guide you through the update process.

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