asked 2018-06-30 22:02:44 +0200
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?
Thanks!
answered 2018-07-01 01:24:21 +0200
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/
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 +0200 )editI 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 +0200 )edit@Kao sounds plausible. thanks for your interpretation! makes me sleep a little better ;)
allnet-flats ( 2018-07-02 23:35:19 +0200 )editAsked: 2018-06-30 22:02:44 +0200
Seen: 570 times
Last updated: Jul 02 '18
exsample: https://www.dropbox.com/s/fvprrtgt5hg51yn/pi-hole_ipv6.jolla.com.png?dl=0
allnet-flats ( 2018-07-01 01:37:40 +0200 )editI'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 +0200 )editRe 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 +0200 )edit