"Fatal: Couldn't agree a client-to-server cipher (available: aes128-ctr,aes192-ctr,aes256-ctr)" error while SFTP key caching for Security Analytics

[#1]

Article Number

000034724

Applies To

RSA Product Set: Security Analytics
RSA Product/Service Type: SA Log Collector
RSA Version/Condition: 10.5.X,10.6.X
 

Issue

SFTP key caching in Windows server, fails with "Fatal: Couldn't agree a client-to-server cipher (available: aes128-ctr,aes192-ctr,aes256-ctr)" error as below.

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Cause

Earlier versions of SFTP agent does not support advance ciphers. This will be supported with the latest SFTP agent 4.1.0.15 version.

Resolution

Please install the latest SFTP agent 4.1.0.15 which is available in https://community.rsa.com/docs/DOC-45018 to stop the error while key caching.