I’ve set up another airprint server, but this time I’ve had to use CentOS 6
because of the age of the kit I’m using – an old 1U rack server.

I’ve configured CUPS and also Avahi. I’ve run airprint-generate.py and copied the .service files to /etc/avahi/services/

Everything looks fine until I try to print from my IPhone. I usually test by trying to print an email. As soon as I go to search / select a printer I get the following start to appear in /var/log/cups/error_log

E [29/Aug/2017:15:24:07 +0100] Request from “10.1.103.237” using invalid Host:
field “harpo.local:631”

The printer list appears and I can select a printer and click on print. However nothing prints off, and I just keep getting the above error message.

I’ve tried setting

[server]
host-name=harpo domain-name=ringways.co.uk

in /etc/avahi/avahi-daemon.conf but that just prevents Avahi from starting.

Can anyone suggest what I need to do to get Avahi and CUPS to be friendly?

Gary