# server_fd

- **Language:** C
- **Kind:** attribute
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/server.c#L45
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-variable-server-c-server_fd/

```c
static int server_fd = -1;
```

## Referenced by

- [`server_add_accept`](/en/tmux/latest/reference/c-function-server_add_accept/) (function)
- [`server_signal`](/en/tmux/latest/reference/c-function-server-c-server_signal/) (function)
- [`server_start`](/en/tmux/latest/reference/c-function-server_start/) (function)