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2025-02-08 15:17:34 -06:00
---
title: "Hosts"
weight: 2
description: >
This page tells you how to use hosts.
---
| Key | Description | Type | Required |
|----------------------|---------------------------------------------------------------|----------|----------|
| `OS` | Operating system of the host (used for package commands) | `string` | no |
| `config` | Path to the SSH config file | `string` | no |
| `host` | Specifies the `Host` ssh_config(5) directive | `string` | yes |
| `hostname` | Hostname of the host | `string` | no |
| `knownhostsfile` | Path to the known hosts file | `string` | no |
| `port` | Port number to connect to | `uint16` | no |
| `proxyjump` | Proxy jump hosts, comma-separated | `string` | no |
| `password` | Password for SSH authentication | `string` | no |
| `privatekeypath` | Path to the private key file | `string` | no |
| `privatekeypassword` | Password for the private key file | `string` | no |
| `user` | Username for SSH authentication | `string` | no |
## exec host subcommand
Backy has a subcommand `exec host`. This subcommand takes the flags of `-m host1 -m host2`. For now these hosts need to be defined in the config file.