Well, I understand that going back to default can be achieved by deletion of the control files. However, maintaining the control file provides the flexibility to change the port number as desired. The system must not care whether there is a non-standard port specified in such configuration or port 22 by chance. Thanks for your advice. It does provide a clean workaround for what I still perceive as a bug.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/2122601 Title: ssh access on port 22 inhibited Status in openssh package in Ubuntu: Incomplete Bug description: Ubuntu 24.04.3 LTS ssh: Installed: (none) Candidate: 1:9.6p1-3ubuntu13.13 Version table: 1:9.6p1-3ubuntu13.13 500 500 http://de.archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages 1:9.6p1-3ubuntu13.11 500 500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages 1:9.6p1-3ubuntu13 500 500 http://de.archive.ubuntu.com/ubuntu noble/main amd64 Packages I had changed the ssh port thru /etc/systemd/system/ssh.socket.d/override.conf: [Socket] ListenStream = ListenStream = 24427 The team requested to have that returned to the default port 22. So I changed the file to [Socket] ListenStream = ListenStream = 22 With a recent update I could no longer ssh into the machine. Two solutions: 1. Use sshd instead of ssh.socket 2. Remove or rename the above control file so that it is not read. I.e. having port 22 defined in the controlfile breaks access. Annoying. A fix will be highly appreciated. Others ran into the same issue: https://blog.dummzeuch.de/2025/09/09/troubleshooting-a-ssh-socket- problem/ ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: ubuntu-release-upgrader-core 1:24.04.27 ProcVersionSignature: Ubuntu 6.8.0-79.79-generic 6.8.12 Uname: Linux 6.8.0-79-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.8 Architecture: amd64 CasperMD5CheckResult: pass CrashDB: ubuntu CrashReports: 600:0:0:277414:2025-09-03 13:34:44.691428521 +0000:2025-09-03 13:34:44.676428638 +0000:/var/crash/qant-native-computing-toolkit.0.crash Date: Thu Sep 11 14:25:32 2025 InstallationDate: Installed on 2025-04-17 (147 days ago) InstallationMedia: Ubuntu-Server 24.04.2 LTS "Noble Numbat" - Release amd64 (20250216.2) PackageArchitecture: all ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=linux SourcePackage: ubuntu-release-upgrader Symptom: release-upgrade UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/2122601/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
