How to access a name based website without a DNS record

Hosts file

The /etc/hosts file on a Linux system is a critical configuration file that maps hostnames to IP addresses. This file allows a user to manually associate specific IP addresses with domain names, effectively bypassing the DNS (Domain Name System) lookup process for these entries. The file typically contains lines of text where each line represents ... Read more

How to set PassivePortRange and PassiveIP in pure-ftpd on Debian and Ubuntu Linux

If you run a firewall on your Linux server and want to use passive FTP connections, you have to define the passive port range in pure-ftpd and your firewall to ensure that the connections don't get blocked. The following example is for pure-ftpd on Debian or Ubuntu Linux and ISPConfig 3. Set Passive Port Range ... Read more

Debugging of ISPConfig 3 server actions in case of a failure

The following article describes the steps that need to be taken to debug ISPConfig 3 server scripts. This procedure applies to all ISPConfig 3 versions incl. ISPConfig 3.1 and ISPConfig 3.2. Enable the debug Loglevel in ISPConfig Login to the ISPConfig interface and set the log level to Debug under System > System > Server ... Read more

How to add PHP support for jailed SSH users in ISPConfig 3

ISPConfig PHP Jail

Jailkit is an easy-to-use tool to create and maintain jail environments for shell users on Linux. In this guide, I will show you how to move PHP and its dependencies into the jail so that the jailed user can execute PHP scripts inside the jail on an ISPConfig server. Edit the jailkit .ini file and ... Read more