> Source: [sk150674](https://support.checkpoint.com/results/sk/sk150674)

# sk150674 - Unable to SSH from Check Point to Linux Open Platform server due to missing SSH algorithms

| Property | Value |
|----------|-------|
| Solution ID | sk150674 |
| Date Created | 2019-04-03 |
| Last Modified | 2019-04-04 |
| Technical Level | Advanced |
| OS | Gaia |

## Symptoms

- Unable to SSH from Management to Linux Open Platform server due to missing SSH algorithms, for example:  

`
[Expert@xxx:0]# ssh hxxxx@172.21.244.25`  

`
no kex alg`

## Cause

SSH version mismatch between the Security Management and the Linux server

* On the RedHat server the following ssh version is running

`[root@xxx-xx- ssh]# ssh -V`  

` OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017`  

* On Check Point Server , an earlier ssh version is running

`[Expert@xxx:0]# ssh -V`  

` OpenSSH_4.3p2, OpenSSL 1.0.1p 9 Jul 2015`

## Solution

This solution requires authentication. Please log in to view the full solution.

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