NX vs SSH

[Steve92]

Hi!

In ECS environment (with SBTS & ED as nodes), are performances actually better with NX than with SSH ?

What are the main factual advantages of using NX rather than SSH ?

Does ECS with NX/TCP supports PROXY protocol of HAProxy ?

If not, that means IP source address (client) is unknown for ECS ?

Thanks,

Regards,

Steve.

[Steve92]

Hi!

Does NX actually offer much better performances than SSH ?

In what use cases ? In what measure ?

(forget the 2 last questions in 1st post, they are raised in my other posts)

Thanks,

Steve.

[Britgirl]

Hi, read this article which highlights the benefits of using NX over SSH.

What is the difference between the NX and SSH protocols?
https://kb.nomachine.com/AR11K00739

[Steve92]

Hi!

I know this article but, alas, it is not precise enough.

We would like metrix of performances benchmarks between SSH and NX.

SSH used on just part of the flow penalizes the end-to-end connection ?

What % performance loss can be expected if using SSH instead of NX in the following configurations ?

Basic :

[ !M Client ] == SSH ==> [ ECS  ] == NX ==> [ ED or SBTS ]

Final clustering (ECS A + ECS B) architecture :

[ !M Client ] == SSH ==> [ HAProxy ] == SSH Proxy ==> [ go-mmproxy + (ECS A or ECS B) ] == NX ==> [ ED or SBTS ]

 

Using SSH would be necessary if there’s no solution to remove the NX authenticity warning on the HAProxy cluster (see  https://forum.nomachine.com/topic/disable-warning-about-authenticity-of-host).

It would be a shame to lose X% of performance because of this…

Regards,

Steve.

[Britgirl]

Well, it’s hard to quantify because UDP (https://kb.nomachine.com/AR10T01174) is not available in SSH sessions and it also depends on the characteristics of the network. In terms of CPU usage, or when UDP is not in use, the difference between NX/SSH is negligible. You could take a look at the session statistics and check the bitrate/latency in the two set ups in your own test environments that you have set up. More about session statistics is available here: https://kb.nomachine.com/AR02N00875.

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