Hi Huy, The bug report appears to indicate some sort of syntax error in your /etc/ssh/sshd_config file. What's on line 13 of that file?
SSHDConfig: Error: command ['/usr/sbin/sshd', '-T'] failed with exit code 255: /etc/ssh/sshd_config: line 13: Bad configuration option: Include /etc/ssh/sshd_config: terminating, 1 bad configuration options If you're uncertain, then can you please attach your /etc/ssh/sshd_config for us to review? If that file contains any information that is security sensitive or personally identifying please change this bug report from "Public" to "Private". Thanks ahead of time. ** Summary changed: - package openssh-server 1:7.6p1-4ubuntu0.3 failed to install/upgrade: installed openssh-server package post-installation script subprocess returned error exit status 1 + failed to install/upgrade: sshd_config: line 13: Bad configuration option ** Changed in: openssh (Ubuntu) Status: New => Incomplete -- 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/1905088 Title: failed to install/upgrade: sshd_config: line 13: Bad configuration option Status in openssh package in Ubuntu: Incomplete Bug description: Unpacking openssh-server (1:7.6p1-4ubuntu0.3) ... Setting up openssh-server (1:7.6p1-4ubuntu0.3) ... Job for ssh.service failed because the control process exited with error code. See "systemctl status ssh.service" and "journalctl -xe" for details. invoke-rc.d: initscript ssh, action "restart" failed. ● ssh.service - OpenBSD Secure Shell server Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled) Active: activating (auto-restart) (Result: exit-code) since Fri 2020-11-20 22:09:42 CET; 20ms ago Process: 2918 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=255) dpkg: error processing package openssh-server (--configure): installed openssh-server package post-installation script subprocess returned error exit status 1 Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Processing triggers for ufw (0.36-0ubuntu0.18.04.1) ... Rules updated for profile 'OpenSSH' Firewall reloaded Processing triggers for ureadahead (0.100.0-21) ... ureadahead will be reprofiled on next reboot Processing triggers for systemd (237-3ubuntu10.43) ... Errors were encountered while processing: openssh-server ProblemType: Package DistroRelease: Ubuntu 18.04 Package: openssh-server 1:7.6p1-4ubuntu0.3 ProcVersionSignature: Ubuntu 4.15.0-124.127-generic 4.15.18 Uname: Linux 4.15.0-124-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.20 Architecture: amd64 Date: Fri Nov 20 22:00:10 2020 ErrorMessage: installed openssh-server package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-12-27 (694 days ago) InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228) Python3Details: /usr/bin/python3.6, Python 3.6.9, python3-minimal, 3.6.7-1~18.04 PythonDetails: /usr/bin/python2.7, Python 2.7.17, python-minimal, 2.7.15~rc1-1 RelatedPackageVersions: dpkg 1.19.0.5ubuntu2.3 apt 1.6.12ubuntu0.1 SSHDConfig: Error: command ['/usr/sbin/sshd', '-T'] failed with exit code 255: /etc/ssh/sshd_config: line 13: Bad configuration option: Include /etc/ssh/sshd_config: terminating, 1 bad configuration options SourcePackage: openssh Title: package openssh-server 1:7.6p1-4ubuntu0.3 failed to install/upgrade: installed openssh-server package post-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to bionic on 2020-06-16 (157 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1905088/+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