2020-02-08 15:46:43 +00:00
|
|
|
---
|
|
|
|
title: "SSH Jump"
|
|
|
|
date: 2020-02-02T22:32:13-05:00
|
|
|
|
draft: false
|
2020-03-01 00:39:20 +00:00
|
|
|
tags: [ "SSH" ]
|
2020-02-08 15:46:43 +00:00
|
|
|
---
|
|
|
|
|
|
|
|
With ssh jump, we can ssh into a machine that we don't have direct access to through an intermediary.
|
|
|
|
|
|
|
|
Just chain the necessary hosts together with the following command:
|
|
|
|
|
|
|
|
```bash
|
|
|
|
ssh -J host1 host2 host3 ...
|
|
|
|
```
|
|
|
|
|
|
|
|
Where the last host is the one you wish to connect to at the end.
|
|
|
|
|
|
|
|
Luckily ssh config also supports this!
|
|
|
|
|
|
|
|
```
|
|
|
|
Host host1
|
|
|
|
HostName host1.example.com
|
|
|
|
|
|
|
|
Host host2
|
|
|
|
HostName hidden.host1.example.com
|
|
|
|
ProxyJump host1
|
|
|
|
```
|
|
|
|
|