Verify SSH host public key fingerprint
To check SSH host public key (Ed25519 key, MD5 checksum): ssh-keygen -l -E md5 -f /etc/ssh/ssh_host_ed25519_key.pub
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To check SSH host public key (Ed25519 key, MD5 checksum): ssh-keygen -l -E md5 -f /etc/ssh/ssh_host_ed25519_key.pub
Follow below steps for installation of OpenSSH server under Windows 10 OS. List available OpenSSH software for installation: Get-WindowsCapability -Online | ? Name -like 'OpenSSH*' Install OpenSSH client: Add-WindowsCapability -Online -Name OpenSSH.Client~~~~0.0.1.0 Install OpenSSH server: Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0 Start OpenSSH service: Start-Service sshd Enable autostart for OpenSSH service: Set-Service -Name sshd -StartupType 'Automatic' Check… Continue reading Install OpenSSH under Windows 10 and set Powershell as default shell
To generate QR Code from Linux command line you can use qrencode tool. Use-case: * transfer config/text files from Linux machine to mobile phone * transfer config/text files from Linux machine when it is not possible to directly copy it (i.e. SSH session inside remote RDP session where copy to clipboard is disabled) Installation: dnf… Continue reading Generating QR Code from Linux command line
Fedora 31 is first major distro with cgroup v2 (unified hierarchy). Follow below steps to make Docker working on it: Add Docker CE repository: sudo dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo Install Docker CE: sudo dnf install docker-ce When you try to run Docker container on freshly installed Fedora 31, you will get following error message: docker:… Continue reading Running Docker on Fedora 31 - revert systemd configuration to use cgroup v1
Use below command to disable TCP Offload for a network device: ethtool -K eth0 tx off Settings verification: ethtool --show-offload eth0 You can see results before (left) and after (right) making changes: