SSH Server

Enable OpenSSH Server on Windows 11

install openssh (this is an officially supported optional feature)

Get-WindowsCapability -Name OpenSSH.Server* -Online | Add-WindowsCapability -Online

after installation, set the service to autoastart, and start it the first time
Terminal window
```
Set-Service -Name sshd -StartupType Automatic -Status Running
```

add firewall rule:

$firewallParams = @{
    Name        = 'sshd-Server-In-TCP'
    DisplayName = 'Inbound rule for OpenSSH Server (sshd) on TCP port 22'
    Action      = 'Allow'
    Direction   = 'Inbound'
    Enabled     = 'True'  # This is not a boolean but an enum
    Profile     = 'Any'
    Protocol    = 'TCP'
    LocalPort   = 22
}
New-NetFirewallRule @firewallParams

the default shell will be cmd, if you want to set it to powershell (recommended for ansible)

$shellParams = @{
    Path         = 'HKLM:\SOFTWARE\OpenSSH'
    Name         = 'DefaultShell'
    Value        = 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
    PropertyType = 'String'
    Force        = $true
}
New-ItemProperty @shellParams

Enable OpenSSH server on Linux (Ubuntu/Debian)

source

install
Terminal window
```
sudo apt install openssh-server
```
check if the service is running
Terminal window
```
sudo systemctl status ssh
```
sometimes, firewall rule is needed to allow ssh
Terminal window
```
sudo ufw allow ssh
```