There are some config values that haven't found their way into the administration page.
This has several reasons.
Maybe they are part of a current development that isn't considered stable and will be added later in the administration page when it is considered safe.
-Or it triggers something that isn't expected to be of public interest. Or it is for testing purposes only.
+Or it triggers something that isn't expected to be of public interest.
+Or it is for testing purposes only.
**Attention:** Please be warned that you shouldn't use one of these values without the knowledge what it could trigger.
Especially don't do that with undocumented values.
* **dlogfile - location of the developer log file
* **event_input_format** - Default value is "ymd".
* **frontend_worker_timeout** - Value in minutes after we think that a frontend task was killed by the webserver. Default value is 10.
+* **hsts** (Boolean) - Enables the sending of HTTP Strict Transport Security headers
* **ignore_cache** (Boolean) - For development only. Disables the item cache.
+* **ipv4_resolve** (Boolean) - Resolve IPV4 addresses only. Don't resolve to IPV6. Default value is false.
* **like_no_comment** (Boolean) - Don't update the "commented" value of an item when it is liked.
* **local_block** (Boolean) - Used in conjunction with "block_public".
* **local_search** (Boolean) - Blocks search for users who are not logged in to prevent crawlers from blocking your system.
* **paranoia** (Boolean) - Log out users if their IP address changed.
* **permit_crawling** (Boolean) - Restricts the search for not logged in users to one search per minute.
* **worker_debug** (Boolean) - If enabled, it prints out the number of running processes split by priority.
-* **worker_fetch_limit** - Number of worker tasks that are fetched in a single query. Default is 5.
+* **worker_fetch_limit** - Number of worker tasks that are fetched in a single query. Default is 1.
* **profiler** (Boolean) - Enable internal timings to help optimize code. Needed for "rendertime" addon. Default is false.
* **free_crawls** - Number of "free" searches when "permit_crawling" is activated (Default value is 10)
* **crawl_permit_period** - Period in seconds between allowed searches when the number of free searches is reached and "permit_crawling" is activated (Default value is 60)
* **upgrade_link** -
-## experimentals ##
+## experimental ##
* **exp_themes** (Boolean) - Show experimental themes as well.