Proxy support for SSH/SFTP connections (System Proxy / SOCKS5 / HTTP)

[gnilobaiter]

Proxy support for SSH/SFTP connections (System Proxy / SOCKS5 / HTTP)

It would be great to have proxy support for SSH/SFTP connections.

Use case

I use a system-wide proxy on Windows, but Voltius SSH/SFTP connections currently connect directly and do not follow the system proxy settings.

It would be useful to have an option such as:

• Direct connection
• Use system proxy
• SOCKS5 proxy
• HTTP/HTTPS CONNECT proxy

For example:

Proxy type: System / SOCKS5 / HTTP
Host: 127.0.0.1
Port: 10808
Username: optional
Password: optional

Ideally this could be configured globally, with an optional per-host override.

Expected behavior

When Use system proxy is enabled, SSH and SFTP traffic should use the proxy configured by the operating system when possible.

For proxy types that cannot be transparently obtained or used from the OS configuration, manual SOCKS5 / HTTP CONNECT configuration would be very useful as a fallback.

Why

This is especially useful when:

• SSH access is only available through a proxy
• using local proxy clients such as sing-box, Clash/Mihomo, v2rayN, etc.
• different networks require different routes
• avoiding the need for external tools such as Proxifier or a full TUN interface just for Voltius

Termius and other SSH clients provide similar proxy functionality, so having this built into Voltius would make migration much easier.

Thanks!