MultiServerSync

Files and commands on every server at once.

Check the servers — and push files or run a command on all of them with one click. Every server reports back separately.

English · Русский

What it's for

• Hundreds of routes, one click. A tab is a scenario: "this folder → there, on these servers", "that file → elsewhere". Run everywhere fires every tab at once.
• Copy, then run commands. A switch on a copy tab: after a successful upload its commands run — only on the servers where the copy went through.
• Commands in parallel. Command tabs run side by side — even different commands on the same server: logs in one, restart in another.
• Fast copy, verified twice. SHA-256 before sending — identical files stay put; after — proof everything arrived intact.
• No wrong server. Smart mode remembers where each command and tab usually goes and asks before an unusual target.

Add your servers once. After that: check the ones you need, pick files or type a command, press Run.

• Copy to every server — files and folders go to the checked servers in parallel. A dropped connection never leaves a truncated file: each file is swapped in whole. Failed servers are retried in one click.
• Many streams — small files travel as compressed tar batches over three streams, large files in chunks over four connections. No rsync needed on the server.
• Only what changed — compare by modification time or by SHA-256: matching files aren't sent. Checksums can be verified again after copying.
• Permissions, owner and date stay put — a replaced file keeps its permissions and owner, a new one takes them from the folder it lands in.
• Download — from servers to your PC the same way: only what changed, checksum check; from several servers — each into its own subfolder. Sizes and dates in the list refresh from the servers on their own.
• Explorer — two large panes, your PC and a server, like WinSCP: Enter, F2, F5 copy, Del, or drag files between panes and out to Windows Explorer; as many tabs as you like. Permissions and owner change only in the Properties window. A server file opens in any Windows app and goes back on save.
• Edit in place — configs and scripts open in a built-in editor with line numbers, highlighting and find/replace. Encoding, line endings, owner and permissions stay as they were; the file is checked by SHA-256 after saving.
• Exclusions — masks like node_modules and *.log stay out both ways.
• Commands and scripts — several commands in one tab run in turn: the next one after the previous succeeds. A script of any length goes whole through stdin; answer [Y/n] from the app, the sudo password is supplied for you. Command sets go to favourites.
• Each server's output — live and separate, highlighted, with a zoom for larger text. Runs started within a few minutes of each other stack up in one terminal; tick "Keep log" and the tab keeps them all. Copy progress with time left; one Stop button.
• See what's wrong — a persistent notice when commands after copying won't run: the tab is empty or the servers differ. Errors in plain words.
• Tabs for different jobs — each tab has its own servers, files, path and command. Run everywhere starts all tabs at once; the result shows on the tab labels. Tabs you rarely need go to an archive strip with a right-click and keep working there.
• Connection — OpenSSH and PuTTY keys or a password, login through a jump host, import from ~/.ssh/config, PuTTY and WinSCP. The server's host key is remembered — a swap gets noticed.
• Passwords encrypted — under your Windows account or with a master password.
• Smart mode — asks if a command or copy is about to run on a server it doesn't usually go to.

Get started

1. Unpack the archive
2. Run MultiServerSync.exe
3. Add your servers — and check where to send

Windows 10 / 11 (x64), requires .NET 9 Desktop Runtime. Free, open source, no telemetry.

Build from source

Requires the .NET 9 SDK.

git clone https://github.com/FoxUSA/MultiServerSync.git
cd MultiServerSync
powershell -ExecutionPolicy Bypass -File .\Data\build.ps1

The launcher MultiServerSync.exe appears in the repository root, the program in Data, your settings in UserData. Sources: Data/src/App (the program, WPF + WPF UI, SSH.NET, AvalonEdit) and Data/src/Launcher. Developer notes (in Russian): Data/README.md.

License

GPL-3.0 — use, change and share freely; programs built on this code must stay open source too.

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_{Keywords: multi-server SSH, SFTP sync, deploy files to multiple servers, run a command on many servers, parallel SSH, download from multiple servers, two-pane SFTP explorer, Windows SSH tool.}