Hello Brian, I installed version
245.4-4ubuntu3.3 from focal-proposed on my focal systems, did some restarts, checked the content of the /etc/resolv.conf (trust-ad was always present). Connection to servers using sshfp is working without authenticity question except those servers without sshfp key in DNS. So everything works as it is supposed to. Thanks a lot and I have changed the tag for focal. Daniel ** Tags removed: verification-needed-focal ** Tags added: verification-done-focal -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1897744 Title: VerifyHostKeyDNS not working due to missing trust-ad flag Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Focal: Fix Committed Bug description: [impact] without trust-ad resolv.conf option, glibc will strip AD from systemd- resolved responses. one thing this will prevent working is ssh VerifyHostKeyDNS [test case] see https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1898590/comments/7 [regression potential] regressions would likely involve DNS lookup failures, probably if DNSSEC is enabled but possibly even without, and likely when the application requesting the dns lookup processes the response AD. [scope] this is needed only in focal. glibc first stripped the AD in version 2.31, so this is not needed in bionic or earlier. this was added upstream in commit a742f9828ea which was included in v246, so this is fixed already in groovy. [original description] Hi, 1) Description: Ubuntu 20.04.1 LTS Release: 20.04 2) systemd: 245.4-4ubuntu3.2 3) I set VerifyHostKeyDNS to YES and hosts are automatically verified via sshfp. 4) I still get the security question Matching host key fingerprint found in DNS. Are you sure you want to continue connecting (yes/no/[fingerprint])? The issue is known and fixed in systemd v246. https://github.com/systemd/systemd/pull/16072 Best regards Daniel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1897744/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
