Immediately following the openssh-server-7.4p1-3.fc25.x86_64 update, systemd began spewing hundreds of notifications like the following: Feb 28 08:39:59 wildwest systemd: sshd.service: Got notification message from PID 2959, but reception only permitted for main PID 1438 On several of my F25 systems these messages seem to appear roughly every 3 minutes, but this may be site- or configuration-dependent. Restarting the service or rebooting the system has no effect on the behavior. This appears to be the same issue as Debian bug 809035 from a year ago: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=809035 In that case, the spawned child sshd processes were incorrectly calling sd_notify(), when only the main parent should do so. The Debian bug reports that this was fixed in openssh 1:7.1p1-6, so the current manifestation may be a regression in Fedora or upstream.
Thank you for the elaborated report and sorry for trouble. I gave it brief testing, results looked good so I moved on. I missed that the current Debian patch is a bit different then the one discussed in the original bug report which made me to apply this change. Using this debian patch should solve the problems: https://anonscm.debian.org/cgit/pkg-ssh/openssh.git/commit/?id=0fd4134 Change itself in https://anonscm.debian.org/cgit/pkg-ssh/openssh.git/commit/?id=f9c35cb Can you try with this scratch build, it if will resolve the problems for you: https://koji.fedoraproject.org/koji/taskinfo?taskID=18107849 It looks good to me so I will submit new builds soon.
Confirmed that your 7.4p1-3.1.fc25 build in Koji appears to resolve the problem.
(In reply to Paul Stauffer from comment #0) > On several of my F25 systems these messages seem to appear roughly every 3 > minutes, but this may be site- or configuration-dependent. "Got notification message" appears to show up on every attempt to connect to an updated sshd - regardless if accepted or rejected. Apparently something is doing that on your systems in regular intervals. Hopefuly this will get resolved "officially" pretty soon. On a system exposed to numerous bogus login tries this is getting truly annoying.
openssh-7.4p1-4.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-cc8582d738
Tested and left positive karma in Bodhi.
openssh-7.4p1-4.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-cc8582d738
openssh-7.4p1-4.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.