# libtmux.Server.lock_server

- **Module:** libtmux
- **Package:** libtmux
- **Language:** Python
- **Kind:** method
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/server.py#L828
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-server-lock_server/

tmux command: [`lock-server`](/en/tmux/latest/manual/lock-server/)

```
libtmux.Server.lock_server(self) -> None
```

Lock the tmux server via [`$ tmux lock-server`](/en/tmux/latest/manual/lock-server/).

Requires an attached client.

```python
>>> with control_mode() as ctl:
...     server.lock_server()
```

## In other ports

### Lock every client attached to the server

- Rust: [`server.Server.lock_all`](/en/rs/latest/reference/server-server-lock_all/) (method)
- Go: [`tmux.Server.LockServer`](/en/go/latest/reference/tmux-server-lockserver/) (method)
- Java: [`io.github.libtmux.Server.Server.lock`](/en/java/latest/reference/io-github-libtmux-server-server-lock/) (method)
- C#: [`LibTmux.Server.LockAsync`](/en/csharp/latest/reference/libtmux-server-lockasync/) (method)