How to Understand External Servers and Services Accessed by Firmware: Difference between revisions

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== Overview ==
{{Migrating|https://smartpossdk.gitbook.io/cloudpossdk/faq/firmware/understand-firmware-external-access}}
Certain system services in the terminal access external services, typically via specific IP ports.
== Services List ==
{| class="wikitable"
|-
! Service !! Domain Name or IPs || Description
|-
| TMS (wizarview) || www.wizarview.com || The major TMS servers: [http://sdkwiki.wizarpos.com/index.php/How_to_Understand_TMS_Server_IP_Addresses_and_Port_Configuration TMS_Server_IP_Addresses_and_Port_Configuration]
|-
| 204 Pages || connectivitycheck.gstatic.com <br> www.google.com <br> www.qualcom.com || These servers are used to check internet connectivity by pinging an empty HTTP(S) page (204 response), and commonly use HTTP port 80 and HTTPS port 443. <br> For example: [http://connectivitycheck.gstatic.com/generate_204 http://connectivitycheck.gstatic.com/generate_204]
|-
| A-GPS Location Services || location.services.mozilla.com <br> locprod2-elb-us-west-2.prod.mozaws.net <br> xtrapath2.xboxprod.izatcloud.net || The first two servers associated with the Micro-G project.<br>The 3rd one server belonging to Qualcomm.<br>  TMS agent use these services for GPS data, which can be disabled through TMS agent configuration.
|-
| NTP Services || asia.pool.ntp.org (old default)<br> cn.pool.ntp.org (old backup)<br> hk.pool.ntp.org (old backup)<br> 2.android.pool.ntp.org (new default from aosp) || The Android system utilizes these servers for automatic time adjustment when set to 'AutoTime', and typically uses UDP port 123 for time synchronization.
|}

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