I want to have the ability to put advertisements on this site and earn money with it. Hopefully, no lawyer will sue me because of a strange law I have never heard about - you are facing this risk as soon as you make money with your website, as far as I understand...
Google has two programs for advertisements. There is AdWords for people who want to buy advertising space and AdSense for webmasters who want to earn money by showing advertisements. I registered there and got a message that I will have to change the A-records of my domains. Then I read https://wincent.com/wiki/Adding_Google_AdSense_to_MediaWiki and brought Google Ads to my website.
Google send me a link to https://www.google.com/adsense/v3/app?hl=en_US#home where I have a cockpit for my GoogleAdSense activities.
@ IN A 22.214.171.124
to https://robot.your-server.de/dns, removed
www IN A 126.96.36.199
www IN A pub-5986435568536490.afd.ghs.google.com
On kis.hosteurope.de, added pub-5986435568536490.afd.ghs.google.com to www. Then www.linuxintro.org pointed to google.
Then my mail server did not work any longer. Researching it, the problem was:
# /etc/init.d/postfix start Starting mail service (Postfix) failed tstaerk was here. postfix_bin is /usr/sbin/postfix # /usr/sbin/postfix postfix: fatal: parameter inet_interfaces: no local interface found for 188.8.131.52
Solved this problem by removing all the
@ IN A 216.239.
Changing the site