Many enterprise environments maintain Windows servers while requiring secure file transfer capabilities typically associated with Unix systems. Traditional Windows servers often lack native SSH/SCP support, creating challenges in mixed-OS environments with strict firewall policies.

1. Bitvise SSH Server
Enterprise-grade solution offering:
- SCP and SFTP support
- Windows integration (Active Directory/NTLM)
- Easy GUI configuration

# Sample Bitvise installation command
Start-Process -FilePath "BvSshServer-Inst.exe" -ArgumentList "/VERYSILENT /SUPPRESSMSGBOXES" -Wait

2. OpenSSH for Windows
Microsoft's official port now included in Windows 10/11 and Server 2019/2022:

# Install via PowerShell
Get-WindowsCapability -Online | Where-Object Name -like 'OpenSSH*'
Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0
Start-Service sshd
Set-Service -Name sshd -StartupType 'Automatic'

For SAN/NAS Management:
Copssh provides lightweight SCP access specifically useful for:

• Firmware updates to network devices
• Secure configuration file transfers
• Automated maintenance scripts

# Sample Copssh configuration snippet
Match Group san-admins
    ChrootDirectory C:\san-configs
    ForceCommand internal-sftp
    AllowTcpForwarding no

When implementing SCP servers on Windows:

1. Always replace default host keys
2. Implement IP whitelisting
3. Use certificate-based authentication
4. Configure detailed logging

# Enhanced OpenSSH logging in sshd_config
LogLevel VERBOSE
Subsystem sftp internal-sftp -f AUTH -l INFO

In enterprise environments where Linux jump servers enforce strict SSH-based authentication but core infrastructure runs Windows, finding a reliable SSH/SCP server becomes critical. Traditional approaches like Cygwin introduce unnecessary complexity for simple file transfer needs between SAN switches, firmware repositories, and Windows management servers.

# Example PowerShell test for OpenSSH Windows Server feature
Get-WindowsCapability -Online | Where-Object Name -like 'OpenSSH.Server*'

Microsoft's OpenSSH Implementation (built into Windows 10 1809+ and Server 2019) provides the most native experience:

1. Install via PowerShell: Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0
2. Key-based authentication works with standard authorized_keys files
3. Full SFTP/SCP subsystem support

Bitvise SSH Server offers commercial-grade features:

• GUI management console for ACL configuration
• Integrated Windows authentication (AD/LDAP)
• Session logging compliant with security audits

Configuration example for SAN firmware uploads:

# Sample bitvise configuration file snippet
Sftp {
  RootDirectories "C:\SAN_Firmware /firmware"
  OverwriteMode "rename"
  DownloadAllowed no
}

When implementing SSH servers on Windows:

For SAN firmware deployment workflows, consider combining SSH with:

# PowerShell script for automated upload
$session = New-SFTPSession -ComputerName "dcfm-server" -Credential $cred
Set-SFTPFile -SessionId $session.SessionId -LocalFile "nx-os.9.3.4.bin" 
-RemotePath "/firmware/san_switch_a"

Pair this with Ansible playbooks for multi-switch updates:

# ansible playbook snippet
- name: Transfer firmware to Windows SCP server
  win_scp:
    src: /repo/{{ firmware_version }}.bin
    dest: C:\SAN_Firmware\{{ inventory_hostname }}.bin
    user: "{{ scp_user }}"
    password: "{{ scp_pass }}"