Ability to change web service settings with serveradmin

Number:rdar://32837929 Date Originated:18.6.2017
Status:Closed Resolved:Duplicate of 9434504
Product:Server Product Version:Server 5.3.1
Classification:UI/Usability Reproducible:Always
serveradmin tool is unable to change settings for webservice.
For example: `serveradmin settings web:defaultSecureSite:allowFolderListing = yes` does nothing.

Steps to Reproduce:
1. get root shell or use sudo
2. Attempt to change any web settings with serveradmin tool
3. f.e. sudo serveradmin settings web:defaultSecureSite:allowFolderListing = yes

Expected Results:
Setting is changed.

Observed Results:
serveradmin tool is unable to change any web setting

Server 5.2 (El Capitan)
Server 5.3.1 (Sierra)

Console shows following log message: `servermgr_web: writeSettings attempted with old protocol; request dictionary follows`
There is exactly one relevant link in Google search for this https://discussions.apple.com/thread/5877091?tstart=0


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