On Mon, Sep 7, 2026 at 11:49 PM Vincent Lefevre <[email protected]> wrote: > > On a machine without IPv6 support (IPv6 disabled in the kernel, > and no IPv6 addresses), how to prevent programs from using IPv6 > by default?
I'm not getting into the weeds with all the replies on this thread, but I did want to add: Happy Eyeballs. Happy Eyeballs could explain why you are seeing both IPv4 and IPv6 queries -- the program is complying with RFC 6555 and friends.[0] But I can't explain the IPv6 queries when you _don't_ have a dual stack. [0.0] Happy Eyeballs Version 1, RFC 6555, <https://www.rfc-editor.org/info/rfc6555/> [0.1] Happy Eyeballs Version 2, RFC 8305, <https://www.rfc-editor.org/info/rfc8305/> [0.2] Happy Eyeballs Version 3, <https://datatracker.ietf.org/doc/draft-ietf-happy-happyeyeballs-v3/> Jeff
