> On 31 Jan 2022, at 19:22, Dieter Maurer <die...@handshake.de> wrote: > > Michael Welle wrote at 2022-1-30 09:18 +0100: >> ... > The machine this is running on regularly switches >> its network configuration without restarting the Python application. Now >> it turns out that the application is still using an old, outdated dns >> server after such a network configuration switch. > > It is unlikely that Python performs the host -> IP address translation > itself. Almost surely, the translation is delegated to functions > of the underlying C runtime library, e.g. "gethostbyname".
And glibc does not have the ability to reload the /etc/resolv.conf I recall. If you rely on that you will need to change to using something like dnsmasq or systemd-resolved so that resolv.conf uses localhost. Barry > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
