ProxyJump is safer than SSH agent forwarding

An SSH jump server is a proxy standing between clients and the rest of the SSH fleet. Jump hosts minimize threats by forcing all SSH traffic to go through a single hardened location and minimizing an individual node’s SSH endpoints to the outside world. (Read more: “How to set up an SSH jump server.”)One way to configure a multi-hop setup is by storing a private key for the destination server on your jump server. Do not do this. A jump server is usually a multi-user environment, meaning any single party with elevated privileges could compromise any private key. A solution to this security threat is enabling agent forwarding. Given how common this method is, it may surprise you to learn this is not recommended. To understand why, let’s dig a bit deeper.To read this article in full, please click here

Nov 30, -0001 - 00:00
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ProxyJump is safer than SSH agent forwarding
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Techatty Supportive Club

An SSH jump server is a proxy standing between clients and the rest of the SSH fleet. Jump hosts minimize threats by forcing all SSH traffic to go through a single hardened location and minimizing an individual node’s SSH endpoints to the outside world. (Read more: “How to set up an SSH jump server.”)

One way to configure a multi-hop setup is by storing a private key for the destination server on your jump server. Do not do this. A jump server is usually a multi-user environment, meaning any single party with elevated privileges could compromise any private key. A solution to this security threat is enabling agent forwarding. Given how common this method is, it may surprise you to learn this is not recommended. To understand why, let’s dig a bit deeper.

To read this article in full, please click here

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