For reference, see below the content of the sources.list (comments stripped, source.list.d is empty; you can see that it does not contain neither 127.0.0.1 nor 2a03:687:4ea:4900:fe9f:937c:3487:4cd3 mentioned in the error messages; the 2a03:687:4ea:4900:fe9f:937c:3487:4cd3 is IP assigned by DHCP to the apt's localhost): deb http://lu.archive.ubuntu.com/ubuntu/ impish main restricted deb http://lu.archive.ubuntu.com/ubuntu/ impish-updates main restricted deb http://lu.archive.ubuntu.com/ubuntu/ impish universe deb http://lu.archive.ubuntu.com/ubuntu/ impish-updates universe deb http://lu.archive.ubuntu.com/ubuntu/ impish multiverse deb http://lu.archive.ubuntu.com/ubuntu/ impish-updates multiverse deb http://lu.archive.ubuntu.com/ubuntu/ impish-backports main restricted universe multiverse deb http://security.ubuntu.com/ubuntu impish-security main restricted deb http://security.ubuntu.com/ubuntu impish-security universe deb http://security.ubuntu.com/ubuntu impish-security multiverse
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1952720 Title: apt uses proxy in order to access local resources To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1952720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs