The Perfect Server - Ubuntu 18.04 (Nginx, MySQL, PHP, Postfix, BIND, Dovecot, Pure-FTPD and ISPConfig 3.1)

This tutorial shows the steps to install an Ubuntu 18.04 (Bionic Beaver) server with Nginx, PHP, MariaDB, Postfix, pure-ftpd, BIND, Dovecot and ISPConfig 3.1. ISPConfig is a web hosting control panel that allows you to configure the installed services through a web browser. This setup provides a full hosting server with web, email (inc. spam and antivirus filter), Database, FTP and DNS services.

1. Preliminary Note

In this tutorial, I will use the hostname with the IP address and the gateway for the network configuration. These settings might differ for you, so you have to replace them where appropriate.  Before proceeding further, you need to have a basic minimal installation of Ubuntu 18.04 as explained in this tutorial.

The steps in this tutorial have to be executed as root user, so I will not prepend "sudo" in front of the commands. Either Login as root user to your server before you proceed or run:

sudo -s

to become root when you are logged in as a different user on the shell.

The commands to edit files will use the editor "nano", you can replace it with an editor of your choice. Nano is an easy to use file editor for the shell. If you like to use nano and haven't installed it yet, run:

apt-get install nano

2. Update Your Linux Installation

Edit /etc/apt/sources.list. Comment out or remove the installation CD from the file and make sure that the universe and multiverse repositories are enabled. It should look like this:

nano /etc/apt/sources.list

# deb cdrom:[Ubuntu-Server 18.04 LTS _Bionic Beaver_ - Release amd64 (20180425.1)]/ bionic main restricted

#deb cdrom:[Ubuntu-Server 18.04 LTS _Bionic Beaver_ - Release amd64 (20180425.1)]/ bionic main restricted

# See for how to upgrade to
# newer versions of the distribution.
deb bionic main restricted
# deb-src bionic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb bionic-updates main restricted
# deb-src bionic-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb bionic universe
# deb-src bionic universe
deb bionic-updates universe
# deb-src bionic-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb bionic multiverse
# deb-src bionic multiverse
deb bionic-updates multiverse
# deb-src bionic-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb bionic-backports main restricted universe multiverse
# deb-src bionic-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb bionic partner
# deb-src bionic partner

deb bionic-security main restricted
# deb-src bionic-security main restricted
deb bionic-security universe
# deb-src bionic-security universe
deb bionic-security multiverse
# deb-src bionic-security multiverse

Then run:

apt-get update

To update the apt package database and then:

apt-get upgrade

to install the latest updates (if there are any). If you see that a new kernel gets installed as part of the updates, you should reboot the system afterward:


3. Change the Default Shell

/bin/sh is a symlink to /bin/dash, however we need /bin/bash, not /bin/dash. Therefore we do this:

dpkg-reconfigure dash

Use dash as the default system shell (/bin/sh)? <-- No

If you don't do this, the ISPConfig installation will fail.

4. Disable AppArmor

AppArmor is a security extension (similar to SELinux) that should provide extended security. We will cross check if it is installed and remove it if necessary. In my opinion you don't need it to configure a secure system, and it usually causes more problems than advantages (think of it after you have done a week of trouble-shooting because some service wasn't working as expected, and then you find out that everything was ok, only AppArmor was causing the problem). Therefore, I disable it (this is a must if you want to install ISPConfig later on).

We can disable it like this:

service apparmor stop
update-rc.d -f apparmor remove
apt-get remove apparmor apparmor-utils

5. 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 -y install ntp ntpdate

and your system time will always be in sync.

6. Install Postfix, Dovecot, MariaDB, phpMyAdmin, rkhunter, Binutils

For installing postfix, we need to ensure that sendmail is not installed and running. To stop and remove sendmail run this command:

service sendmail stop; update-rc.d -f sendmail remove

The error message:

Failed to stop sendmail.service: Unit sendmail.service not loaded.

Is ok, it just means that sendmail was not installed, so there was nothing to be removed.

We can install Postfix, Dovecot, MariaDB (as MySQL replacement), rkhunter, and binutils with a single command:

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

MariaDB is a fork of the MySQL database server, developed by the original MySQL developer Monty Widenius. According to tests found on the internet, MariaDB is faster than MySQL and it's development is going on with more pace, therefore, most Linux Distributions replaced MySQL with MariaDB as default "MySQL alike" database server. In case that you prefer MySQL over MariaDB, replace "mariadb-client mariadb-server" in the above command with "mysql-client mysql-server".

You will be asked the following questions:

General type of mail configuration: <-- Internet Site
System mail name: <--

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

nano /etc/postfix/

Uncomment the submission and smtps sections as follows - add the line -o smtpd_client_restrictions=permit_sasl_authenticated,reject to both sections and leave everything thereafter commented:

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 smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
smtps     inet  n       -       -       -       -       smtpd
  -o syslog_name=postfix/smtps
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING

NOTE: The whitespaces in front of the "-o .... " lines are important!

Restart Postfix afterward:

service postfix restart

We want MariaDB/MySQL to listen on all interfaces, not just localhost. Therefore we edit /etc/mysql/mariadb.conf.d/50-server.cnf (for MariaDB or /etc/mysql/my.cnf (for MySQL) and comment out the line bind-address =


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           =

Now we set a root password in MariaDB. Run:


You will be asked these questions:

Enter current password for root (enter for none): <-- press enter
Set root password? [Y/n] <-- y
New password: <-- Enter the new MariaDB root password here
Re-enter new password: <-- Repeat the password
Remove anonymous users? [Y/n] <-- y
Disallow root login remotely? [Y/n] <-- y
Reload privilege tables now? [Y/n] <-- y

Set the password authentication method in MariaDB to native so we can use PHPMyAdmin later to connect as root user:

echo "update mysql.user set plugin = 'mysql_native_password' where user='root';" | mysql -u root

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

nano /etc/mysql/debian.cnf

The MySQL root password that needs to be added is shown in read, in this example the password is "howtoforge".

# Automatically generated for Debian scripts. DO NOT TOUCH!
host = localhost
user = root
password = howtoforge
socket = /var/run/mysqld/mysqld.sock
host = localhost
user = root
password = howtoforge
socket = /var/run/mysqld/mysqld.sock
basedir = /usr

Then we restart MariaDB:

service mysql restart

The systemd service name for MariaDB and MySQL is "mysql", so the restart command is the same for both database servers.


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           =

Then we restart MySQL:

service mysql restart

The systemd service name for MariaDB and MySQL is "mysql", so the restart command is the same for both database servers.

For MySQL and MariaDB:

Now check that networking is enabled. Run:

netstat -tap | grep mysql

The output should look like this:

[email protected]:~# netstat -tap | grep mysql
tcp6 0 0 [::]:mysql [::]:* LISTEN 12210/mysqld

7. Install Amavisd-new, SpamAssassin, And ClamAV

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

apt-get -y install amavisd-new spamassassin clamav clamav-daemon 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 postgrey libdbd-mysql-perl

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

service spamassassin stop
update-rc.d -f spamassassin remove

 To update the ClamAV antivirus signatures and start the Clamd service. The update process can take some time, don't interrupt it.

service clamav-daemon start

The following error can be ignored on the first run of freshclam.

ERROR: /var/log/clamav/freshclam.log is locked by another process
ERROR: Problem with internal logger (UpdateLogFile = /var/log/clamav/freshclam.log).

The amavisd-new program has currently a bug in Ubuntu 18.04 which prevents that emails get signed with Dkim correctly. Run the following commands to patch amavisd-new.

cd /tmp
cd /usr/sbin
cp -pf amavisd-new amavisd-new_bak
patch < /tmp/ubuntu-amavisd-new-2.11.patch

In case you get an error for thelast 'patch' command, then Ubuntu has probably fixed the issue in the meantime, so it should be safe to ignore that error then.

7.1 Install Metronome XMPP Server (optional)

The Metronome XMPP Server provides an XMPP chat server. This step is optional, if you do not need a chat server, then you can skip this step. No other ISPConfig functions depend on this software.

Install the following packages with apt.

apt-get -y install git lua5.1 liblua5.1-0-dev lua-filesystem libidn11-dev libssl-dev lua-zlib lua-expat lua-event lua-bitop lua-socket lua-sec luarocks luarocks
luarocks install lpc

Add a shell user for Metronome.

adduser --no-create-home --disabled-login --gecos 'Metronome' metronome

Download Metronome to the /opt directory and compile it.

cd /opt; git clone metronome
cd ./metronome; ./configure --ostype=debian --prefix=/usr
make install

Metronome has now be installed to /opt/metronome.

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By: steve


thanks for that!

wanna do the setup with debian 9.4 instead of ubuntu.

any differences except the entries in /etc/apt/sources.list?



By: till

Use the Debian tutorial instead of the Ubuntu tutorial to install ISPConfig on Debian:

By: gardo

phpmyadmin does not work, i can access the url :8081/phpmyadmin but it does not allow to login.

same with roundcube, it says cant connect to database.


Mysql is up and nothing in the logs.

By: JamesB

Works fine here in my server. There must be a general problem with MySQL on your server when two completely independent applications are not able to connect to MySQL on your system.

By: Jacques

What would be recommended system requirements for The Perfect Server as above?

4 vCPU, 8GB RAM ???

In addition, what would be the recommended partitioning scheme and sizes to keep things sensible?/boot - 512MB/swap - 1GB/var - 4GB/var/log - 2GB/ - 8GB???

By: till

The requirements depend largely on how much mail and web traffic you expect. I would say that 1GB RAM is the absolute minimum and 2GB+ recommended. The number of vCPU's depends only on the workload. In regard to partitioning, emails are in /var/vmail and websites in /var/www, so you should have a large /var partition as basically all website and email data will reside in that partition.

By: hacker

First thank you very mutch for the great how to!

In my case had error for roundcube an phpmyadmin sites:

ERROR 502 - Bad Gateway! The following error occurred:

This server received an invalid response from an upstream server it accessed to fulfill the request.

If you get this message repeatedly please contact the webmaster.

My Solution:

Replace in


listen = /var/run/php/php7.2-fpm.sock


listen = /var/run/php/php7.0-fpm.sock

and do

 /etc/init.d/php7.2-fpm restart

and Bad Gateway is away and roundcube works:)

without warranty, I believe it is a hack:)


By: Lyudmil

The lesson is great. How to set permissions to upload the FTP site folder?

By: IceManXS


thank you for your tutorials, everythink worked fine for me. Except one mistake I found.

In this tutorial you use PHP 7.2 so we have to use fastcgi_pass unix:/var/run/php/php7.2-fpm.sock; instead of fastcgi_pass unix:/var/run/php/php7.0-fpm.sock; at the nginx Directives field for the aliasing of phpMyAdmin and roundcube. Otherwise you will get a error 502. Maybe you can fix this!

Kind Regards

By: Emmanuel Mnzava

After successful installation and configuration. Now i cant access site with friendly URL's.

Can you share nginx Directives  that will allow site to be accessed with friendly URL's like modrewrite in Apache.


By: Glen

You reference installing PHP5 modules in the body of your text even though this version uses php 7.2. Also, you reference a php7.0 socket instead of the php7.2 socket. 

By: Cane

Thanks for your Tutorial


I have one problem though, if I want to loggin to isp with admin admin it tells me wrong password

By: till

The default password is not admin anymore, the installer sets a custom password for each install and shows that password on the screen during install. If you don't remember which password was shown by the installer, then you can reset the password like this:

By: Manuel Hernandez

I accidentally pressed Ctrl+C when installing ISPConfig, specifically when it was on this line:

Configuring Fail2banConfiguring Apps vhostInstalling ISPConfigISPConfig Port [8080]: 

How do I resume installation?

By: Pat

in my case the apache2 running instead of nginx and can't stop it :-(

By: till

This tutorial did not installed apache, so it must have been installed before. You probably did not start from a clean minimal system then.If you don't remember the start script of the apache instance that you installed, then use the killall command to stop it.

By: Pat

 and open the admin site results a blank page with the message:

Possible attack detected. This action has been logged. 

By: till

Probably you used a password for the admin that looks like a script attack so that it triggers the script filter. You can change the admin password like this: or you switch off the IDS in /usr/local/ispconfig/security/security_settings.ini

By: FFG28


I would like to use an apple mail client (Mojave) with this server implementation. I installed the server and is working as expected but the emaill account (on the client) only resolves mail if I access (separately) the user mailbox account in roundcube. If Logout of roudcube then the mail client stops working.

Any help is appreciated.



By: Eugen

Hi,  hello everyone again. Ubuntu 18.04, MySql, PHP7.1 and Nginx  all got installed with no error till final stage installing ISPconfig got error;     

No PHP MySQLi functions available. Please ensure that the PHP MySQL module is loaded.

 I think it happened because PHP7 1.  Ok, I changed to PHP7.2  the enabled it, then got another error    bash: cd: too many arguments.    it looks like I am locked now.

any help please,  how to reset the ISPconfig install,

Thanks a lot.


By: till

This setup uses PHP 7.2, changing the default PHP version is not supported and will break the setup, so keep the PHP version that ships with the OS (in this case PHP 7.2) and follow the guide to the letter to get a working system. You can install other PHP versions as additional PHP versions for ISPConfig, but do not change the default PHP of the OS as ISPConfig and also other packages of the OS like phpMyAdmin rely on it.

By: Ernesto La Fontaine

Hi, I get "Server sent passive reply with unroutable address. Using server address instead." when i try to connect to ftp 



By: till

By: Marius


Make individual typing   apt-get -y install amavisd-new (Error)


make apt-get -y install spamassassin (Errors where encountered while processing:


E: Sub-process /usr/bin/dpkg returned an error code (1) )


What is this ?

By: till

<p>You probably missed setting up the server hostname correctly when amavis is not starting (command hostname -f must return the FQDN hostname like</p>

By: Anzola

Is there something similar to this tutorial for a multi-sites configuration? Thanks!!

By: Wesley

Olá meu certificado ssl ficou como invalido. Como resolver? 

By: smza

Is it possible to configure PowerDNS rather than bind9 with ISPConfig?

By: Deepak

Hi, In STEP 15, is it necessary to run ln -s /usr/share/roundcube /usr/share/squirrelmail ?

How can I keep the /webmail only and no /SquirrelMail?

I simply want to open webmail by using /webmail and it should point to /roundcube.

By: Troy


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 = [...]Is this a error in the script there's no bind-address found in this file?

By: emplant2000

running on 18.04 EC2 Installed following. and update git-stable. like this one. I can get wp setup.but goes an error by websocket. 2019/05/25 16:14:11 [error] 21263#21263: *2 recv() failed (104: Connection reset by peer) while reading response header from upstream, client:, server:, request: "GET /wordpress/wp-admin/setup-config.php HTTP/1.1", upstream: "fastcgi://unix:/var/lib/php7.2-fpm/web3.sock:", host: "" and websocket says [email protected]:~$ netstat -a --unix | grep php unix 2 [ ACC ] STREAM LISTENING 22528 /run/php/php7.2-fpm.sock unix 2 [ ACC ] STREAM LISTENING 22522 /var/lib/php7.2-fpm/web1.sock unix 2 [ ACC ] STREAM LISTENING 22526 /var/lib/php7.2-fpm/web3.sock unix 2 [ ACC ] STREAM LISTENING 22518 /var/lib/php7.2-fpm/apps.sock unix 2 [ ACC ] STREAM LISTENING 22520 /var/lib/php7.2-fpm/ispconfig.sock unix 2 [ ACC ] STREAM LISTENING 22524 /var/lib/php7.2-fpm/web2.sock [email protected]:~$ ] ]: command not found how can i fix this isshue?

By: Sasni

Hello, i create php file with phpinfo(); and output is: 

No input file specified. 

Can you help me? 

By: lewis

Whewr is the admin user you mentioned?

By: till

The ISPConfig installer showed you the password of the admin user during installation. If you missed to note it down, then you can reset the password like this:

By: Mike

I have followed the directions of this tutorial and receive the following error message when ISPCONFIG is installed:

"Failed to reload php7.0-fpm.service: Unit php7.0-fpm.service not found."

The ISPCONFIG panel is not accessible with a "502 Bad Gateway" error message. The NGINX error log states:

2019/07/06 13:08:31 [crit] 20928#20928: *27 connect() to unix:/var/lib/php7.0-fpm/ispconfig.sock failed (2: No such file or directory) while connecting to upstream, client.

By: till

It should read 7.2 in the paths and not 7.0. Please run these commands as root:

cd /tmp wget tar xvfz ISPConfig-3.1.13p1.tar.gz cd ispconfig3_install/install php -q update.php

and choose to reconfigure services during update and check if it works then.



By: mike

Same results.

"Failed to reload php7.0-fpm.service: Unit php7.0-fpm.service not found."

By: mike

Reconfigure Services? (yes,no,selected) [yes]:


Configuring Postfix

Configuring Dovecot

Configuring Mailman

Configuring Spamassassin

Configuring Amavisd

Configuring Getmail

Configuring BIND

Configuring Pureftpd

Configuring nginx

Configuring Apps vhost

Configuring Jailkit

Configuring Database

Updating ISPConfig

ISPConfig Port [8080]:


Create new ISPConfig SSL certificate (yes,no) [no]:




Reconfigure Crontab? (yes,no) [yes]:


Updating Crontab

Restarting services ...

Failed to reload php7.0-fpm.service: Unit php7.0-fpm.service not found.

Update finished.

By: till

Then do this instead:


cd /tmp


tar xvfz ISPConfig-3.1.13p1.tar.gz

cd ispconfig3_install/install

php -q uninstall.php

php -q install.php

Somehow the installer categorized your OS as a different Ubuntu or Debian versionthat uses PHP 7 and not 7.2.

By: Mike

Same results.


writing RSA key



Configuring DBServer

Installing ISPConfig crontab

Installing ISPConfig crontab

Detect IP addresses

Restarting services ...

Failed to reload php7.0-fpm.service: Unit php7.0-fpm.service not found.

Installation completed.


By: till

Really strange, either you don't use Ubuntu 18.04 or there is something wrong with the Ubuntu files which contain the os information. Please make a new thread in our support forum for your install problem and there post the result of the commands:

cat /etc/issue

cat /etc/os-release

By: Angel245
By: Tadek

 Can you tell us how to : "I will create a new MySQL user with the name "admin" here which has root privileges."

By: till

That's not needed anymore, the sentence was left from an older version of the guide. I removed it now.

By: Tadek


When i open

how to fix this? 

By: fperera123

Very Clear! and important tutorial. Thank you very much!!!

By: Faizan

will it work for older versions as well? Ubuntu is my favorite operating system and thanks for this article.


By: Miguel

Thanks for this amazing tuturial, I need to add brotli support to nginx, but I have not been able to achieve it using the official ubuntu repo version of nginx, if I intall it from the nginx version, it works, but I have to create the virtual hosts manually because ISPconfig create the files on the sites-available folder instead of conf.d. Is there a way to fix this?

By: A_dm

What challenges would you think will happen updating this to 20.04 coming in April? 

By: Steffen

I know and hope that the next Perfect Server - Tutorial with Ubuntu 20.04 is about to come soon, but there is a problem I found and think this can maybe save time for the one or the other.I tried to and finally suceeded with updating Roundcube manually to v 1.4.8. In Ubuntu 18.04 it is still 1.3.6. The problem I found is that you use /usr/share/ as root in the nginx Directives field. It works but I think this is wrong. It must be /var/lib/. Otherwise the manual upgrade will end up with a error 500 because of not finding the logs directory in /usr/share/. Maybe you can change this.

By: Chad

Any timeframe on a Ubuntu 20.04 and ISPConfig 3.2 Perfect Server setup walkthrough?

By: yesmer

hello Till, i have a question so i am trying to install ispconfig on ubuntu 20 but i have problems with the email i cannot send and receive so can i send you or post the issues? thanks

By: yesmer

hi another question if i want to install nginx after of this installation can i can deleted apache after or  can i keep both?



By: till

@yesmer: you will have to remove apache if you want to use nginx. If you don't have any sites on the server, then it might be easier to reinstall it using the nginx perfect server guide instead.
Regarding your email problem, please take care to use the Ubuntu 20.04 perfect server guide and if you have any issues, please make a post in the ISPConfig support forum here at howtoforge, so we can help you to find out what's wrong with your setup.

By: derek wildstar

I have been able to observe that fail2ban from the logs does not block attacks, and I have seen that it is a problem that persists even on ubuntu 20 despite the guide written to insert in the file [suffix] enabled = true port = smtp filter = suffix logpath = /var/log/mail.log maxretry = 3 I tried to double check if I had done everything ok and the result was always the same lots of unblocked login attempts warning: unknown [xx.xx.xx.xx]: SASL LOGIN authentication failed: connection lost to the authentication server Jan 4 01:57:24 postfix / smtpd mail [13507]: warning: unknown [xx.xx.xx.54]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jan 4 01:57:50 postfix / smtpd mail [13099]: warning: unknown [xx.xx.xx.54]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jan 4 01:57:57 postfix / smtpd mail [13507]: warning: unknown [xx.xx.xx.54]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jan 4 01:58:18 postfix / smtpd mail [13099]: warning: unknown [xx.xx.xx.54]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jan 4 02:00:10 postfix / smtpd mail [13387]: warning: unknown [xx.xx.xx.54]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jan 4 02:00:27 postfix / smtpd mail [14071]: warning: unknown [xx.xx.xx.54]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 the only way was to add a filter not present in file2ban I created the fil /etc/fail2ban/filter/postfix-sasl.conf and entered this [INCLUDES] before = common.conf [Definition] _daemon = postfix / smtpd failregex = ^% (__ prefix_line) swarning: [-._ \ w] + \ [<HOST> \]: SASL (?: LOGIN | PLAIN | (?: CRAM | DIGEST) -MD5) authentication failed (: [A - Za-z0-9 + /] * = {0,2})? \ S * $ and in /etc/fail2ban/jail.local I entered the rule [sasl] enabled = true port = smtp, smtps filter = postfix-sasl logpath = /var/log/mail.log maxretry = 2 if this is not done, the IPs that try to make brute force attacks are not blocked. I think you should upgrade to the guide, as it is quite critical I hope it was useful Hello!

By: Trond

I am installing this on an EC2 instance and if you remove apparmor you also remove snapd and also a aws system program. Therefor you should perhaps not remove / uninstall apparmor.

Also: the quota is a bit strugling because the setting in fstab-file looks different.

By: Trond Husø

When installing mail and such. install everything except Spamassasin first. Do a reboot. Then install spamassasin. This specifically on a small box. I have experienced timeouts when installing all programs on that line.

By: Ahmad Sobandi

Failed to install Jailkit 


tar xvfz jailkit-2.19.tar.gz--2021-03-15 07:46:42--

Resolving (, 2001:470:1f14:4ab::2

Connecting to (||:80... failed: Connection timed out.


Connecting to (|2001:470:1f14:4ab::2|:80... failed: Network is unreachable

By: till

That#s not a problem with the tutorial. Either your system has a problem with its internet connection or the download server of the jailkit project was temporarily down.

By: Pedro

I'm getting the message:

CONFIGURATION ERROR was not found. Please read the INSTALL instructions!   The file is present, I have no idea of what is going on.

By: Javier Vasquez

I set Up ispconfig on ubuntu 18.04 , everything goes well until

the step 

nano /etc/fstab

it shows this


/tmp /var/tmp none rw,noexec,nosuid,nodev,bind 0 0

tmpfs /tmp tmpfs size=1G,nodev,nosuid,noexec 0 0

tmpfs /dev/shm tmpfs rw,nosuid,nodev,noexec 0 0

Where do I put

usrjquota=quota.user,,jqfmt=vfsv0 0 1

Thank you 

By: Randy

Is it possible to use memcached with ispConfig and multiple Php version? 

I've installed memcached and php-memcached on my ubuntu 18.04 perfect server setup using ispConfig 3.2.2. When I run systemctl status memcached it reports that memcached is running on port 11211 on ip 127,0,0,1 (localhost). But php reports that memcached can't be found. I am running php7.4 on this site but have versions 5.6, 7.0-7.4, and 8.0-8.2 installed per the Howto for installing multiple php versions. I believe the issue is with using multiple php versions. But I could be very wrong here... Any help would be greatly appriciated! 

By: till

You can use Memcached from any php version or application on this server. Just take care that you also installed the PHP Memcached extension for that specific PHP version. If you need further help, please post in the forum:

By: Shahin


Can I use ubuntu 20.04 with nginx and php and others?

Or Nginx must be installed on Ubuntu 18.4

By: till

Sure, you can use Ubuntu 20.04 or 22.04, see installation guide for these newser versions:

By: Chukwu-Nonso

Hello, please kindly help, i succeeded in installing everything fine, but the webmail is giving the following error


CONFIGURATION ERROR was not found.Please read the INSTALL instructions!