Using the server.app logs I get...
In Access Log (Server Proxy) I get this every 4 seconds
server.bowring.onl "127.0.0.1" 127.0.0.1 - - [12/May/2016:20:06:01 +0100] "GET /devicemanagement/status?auto HTTP/1.1" 200 1324 "-" "devicemgrd (unknown version) CFNetwork/760.4.2 Darwin/15.4.0 (x86_64)"
And in the Error Log (Server Proxy) I get these every 4 seconds.
[Thu May 12 20:11:09.200053 2016] [authz_core:debug] [pid 81434] mod_authz_core.c(806): [client 127.0.0.1:63828] AH01626: authorization result of Require all denied: denied
[Thu May 12 20:11:09.200132 2016] [authz_core:debug] [pid 81434] mod_authz_core.c(806): [client 127.0.0.1:63828] AH01626: authorization result of Require ip 127.0.0.1: granted
[Thu May 12 20:11:09.200135 2016] [authz_core:debug] [pid 81434] mod_authz_core.c(806): [client 127.0.0.1:63828] AH01626: authorization result of <RequireAny>: granted
[Thu May 12 20:11:09.200146 2016] [:debug] [pid 81434] mod_hfs_apple2.c(363): [client 127.0.0.1:63828] mod_hfs_apple: compare_paths /Library/Server/Web/Data/Sites/Default/ vs /var/empty/devicemanagement/, related=0
[Thu May 12 20:11:09.200149 2016] [:debug] [pid 81434] mod_hfs_apple2.c(363): [client 127.0.0.1:63828] mod_hfs_apple: compare_paths /Applications/Server.app/Contents/ServerRoot/usr/share/web/customerror/ vs /var/empty/devicemanagement/, related=0
[Thu May 12 20:11:09.200152 2016] [:debug] [pid 81434] mod_hfs_apple2.c(363): [client 127.0.0.1:63828] mod_hfs_apple: compare_paths .*\\\\.\\\\.namedfork/ vs /var/empty/devicemanagement/, related=0
[Thu May 12 20:11:09.200154 2016] [:debug] [pid 81434] mod_hfs_apple2.c(372): [client 127.0.0.1:63828] mod_hfs_apple: Allowing access with no matching directory. filename = /var/empty/devicemanagement
[Thu May 12 20:11:09.200294 2016] [socache_shmcb:debug] [pid 81434] mod_socache_shmcb.c(584): [client 127.0.0.1:63828] AH00840: inside shmcb_status
[Thu May 12 20:11:09.200303 2016] [socache_shmcb:debug] [pid 81434] mod_socache_shmcb.c(673): [client 127.0.0.1:63828] AH00841: leaving shmcb_status
This happens every 4 seconds all day long every day. I turned profile manager off and they still keep coming. At the moment I have the mac mini running as server an iMac 27 turned on and my iPhone on, both of which are registered devices. I have tried turning off my iMac and iPhone and turning on just my macBook with the same result.
Dave