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Reason for DNS lookup of ipv6.jolla.com / ipv4.jolla.com [answered]

asked 2018-06-30 22:02:44 +0300

updated 2018-07-02 10:40:57 +0300

jiit gravatar image

I installed pi-hole in my local network and so i found out that my phone is constantly doing a DNS look up of ipv6.jolla.com and ipv4.jolla.com . Does anyone know the reason for that? Am I able to avoid that behavior when I am not at home?


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The question has been closed for the following reason "the question is answered, an answer was accepted" by olf
close date 2018-07-03 01:08:49.263880



I'm hoping that Jolla will give us an option to disable these pings or at least let us change the target (so I can use my own server) for a long time now.

ghling ( 2018-07-02 10:52:37 +0300 )edit

Re using your own server: If it has a static IP address, couldn't you "redirect" ipv4.jolla.com via /etc/hosts, like people do to make newer search engines work in old browsers? Of course, your server would have to mimic whatever the jolla servers do when the phone does a connection test. You will need more wiresniffing to determine this, but it seems doable if you are determined.

Kao ( 2018-07-03 00:11:40 +0300 )edit

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answered 2018-07-01 01:24:21 +0300

lakutalo gravatar image

SFOS seems to use ipv4.jolla.com to check the connection.

The question how to avoid this behaviour has already been filed here: https://together.jolla.com/question/153129/how-to-avoid-wlan-connection-check/

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Thank you. But then my question would be ... why? Why would the phone need to check every few minutes whether it's online or not?

allnet-flats ( 2018-07-01 01:35:07 +0300 )edit

I guess it is so the phone can quickly detect WLAN going out of range, and switch back from costly mobile connection once WLAN is availabe again. It requires a real connection attempt/roundtrip to be sure WLAN is usable, because public ones are often restricted, requiring login/payment before use. This frequent check results in better connectivity for time critical applications, e.g. push email and messengers.

Kao ( 2018-07-02 01:12:42 +0300 )edit

I wouldn't know of another way of checking the connection's quality, and I'm convinced that using a jolla host for this purpose is the best solution.

lakutalo ( 2018-07-02 22:18:20 +0300 )edit

@Kao sounds plausible. thanks for your interpretation! makes me sleep a little better ;)

allnet-flats ( 2018-07-02 23:35:19 +0300 )edit

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Asked: 2018-06-30 22:02:44 +0300

Seen: 513 times

Last updated: Jul 02 '18