Migrate 'reverse proxy broken' from wiki

[timja]

https://wiki.jenkins.io/display/JENKINS/Jenkins+says+my+reverse+proxy+setup+is+broken

This is one of the top most visited page on the wiki according to:
https://wiki.jenkins.io/.well-known/reports/top_urls.txt

It should be improved on and cleaned up, not just imported,

You can use the wiki-exporter to save some time:
https://jenkins-wiki-exporter.jenkins.io/

After it has been migrated a redirect should be setup, by sending a PR to this file:
https://github.com/jenkins-infra/jenkins-infra/blob/staging/dist/profile/templates/confluence/vhost.conf,
see past PRs for examples, or just take a look.

[MarkEWaite]

Collecting the ideas for structuring the information on the new page into #3204. Would that work for you @timja or do you feel that this needs a dedicated page in System Administration?

[MarkEWaite]

Duplicate of #3204

[timja]

Collecting the ideas for structuring the information on the new page into #3204. Would that work for you @timja or do you feel that this needs a dedicated page in System Administration?

makes sense