How to Understand External Servers and Services Accessed by Firmware

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Revision as of 07:09, 25 April 2023 by Hans (talk | contribs)

Some of the system services in the terminal will access some external services (IP port):

Service Domain Name or IPs Description
TMS (wizarview) www.wizarview.com The major TMS servers: http://sdkwiki.wizarpos.com/index.php/How_many_ports_and_IP_used_by_TMS
204 Pages connectivitycheck.gstatic.com
www.google.com
www.qualcom.com		 Android system will touch an empty 204 HTTP(S) page from those location to check the internet connectivity. Usually it use port 80 and 443.
For example: http://connectivitycheck.gstatic.com/generate_204
A-GPS Location Services location.services.mozilla.com
locprod2-elb-us-west-2.prod.mozaws.net
xtrapath2.xboxprod.izatcloud.net		 The first 2 is belong to micro-g project.
The 3rd one is belong to Qualcomm.
TMS agent will use these service to get the GPS information. But this can be disabled by TMS agent configuration.
NTP Services asia.pool.ntp.org (old default)
cn.pool.ntp.org (redundancy backup)

hk.pool.ntp.org (redundancy backup)

2.android.pool.ntp.org (new default from aosp) || Android system will use these server to automaticly adjustment time, when the system is set as "AutoTime".
 Usually they use UDP port 123
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