How to access a name based website without a DNS record

Hosts file

If you want to access a name-based website that you created e.g. in ISPConfig before the DNS records are set up, edit the hosts file on your workstation computer and add a line like this: 192.168.0.100        www.mydomain.com mydomain.com Edit hosts file on macOS X To edit the hosts file on a computer running macOS X, ... Read more

[Solved] Postfix: “queue file write error”

Postfix: Queue File Write Error

If you get an error like: Apr 15 12:41:03 webb4 postfix/sendmail[11234]: fatal: web1_user(12967): queue file write error in your mail log, then the value for message_size_limit in postfix main.cf is too low. Solve Postfix queue file write error Edit postfix main.cf: nano /etc/postfix/main.cf and set the message size limit to a higher value. E.g. message_size_limit ... Read more

Redirect domains without www (e.g. domain.com) to www.domain.com with apache rewrite rules

Apache www redirect rule

If all your visitors shall access your website with a URL like www.domain.com and not without www, use the following apache rewrite rule for redirecting them. RewriteEngine On RewriteCond %{HTTP_HOST} !^www RewriteRule (.*) http://www.%{HTTP_HOST}$1 [L,R] The apache rewrite rule can be added in a .htaccess file in the website root directory or if you use ... Read more

Some services are shown as “Offline” in the ISPConfig system monitor though they are running on the server.

ISPConfig checks the status of the services on localhost (IP: 127.0.0.1). It may be that some of your services only allow connections to specific IP addresses and not 127.0.0.1 (in Apache this is done with the Listen directive). If you allow connections to localhost the status will be shown correctly in the ISPConfig. Another possibility ... Read more