I have had exchanges with some of the devs over this. At first, their utter failure to even agree this was an issue surprised me. Eventually, I realized that if they are in permissive regions, where 3rd party nameservers are tolerated by ISPs, they would never notice this.
They change networks, and their now obsolete nameservers list can still be used - for them the supposed issue does not exist.
However this is not always the case, and where 3rd party nameservers are not accepted by the ISPs a network change instantly causes iSH to lose connectivity. You can still communicate by IP#, but that is kind of irrelevant. If you lose lookups, you essentially get disconnected.
To test for this issue:
Start iSH
Change network connection
Compare iOS nameservers to what is in iSH /etc/resolv.conf
If they differ you are suffering this bug. Due to permissive routing, you might not be negatively impacted, but it is there.
I did some searching to see what is the more common case, to allow 3rd party nameservers or not, but I could not find any conclusions on a global scale beyond that it would typically be allowed in the US and Scandinavia.
jaclu
commented
1 year ago
I have had exchanges with some of the devs over this. At first, their utter failure to even agree this was an issue surprised me. Eventually, I realized that if they are in permissive regions, where 3rd party nameservers are tolerated by ISPs, they would never notice this.
They change networks, and their now obsolete nameservers list can still be used - for them the supposed issue does not exist.
However this is not always the case, and where 3rd party nameservers are not accepted by the ISPs a network change instantly causes iSH to lose connectivity. You can still communicate by IP#, but that is kind of irrelevant. If you lose lookups, you essentially get disconnected.
To test for this issue:
If they differ you are suffering this bug. Due to permissive routing, you might not be negatively impacted, but it is there.
I did some searching to see what is the more common case, to allow 3rd party nameservers or not, but I could not find any conclusions on a global scale beyond that it would typically be allowed in the US and Scandinavia.