Secure Shell (SSH) connection is closed - no hostkey alg
Article ID: 242194
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Products
Issue/Introduction
The Secure Shell (SSH) connection is closed right after supplying the password in OneClick Console.
The telnetd process is running on the SpectroSERVER and it is listening on port 31415.
The IP address in question (connection is closed) is not in the /home/spectrum/.ssh/known_hosts file.
From the SpectroSERVER host in Linux, the following error is displayed:
no hostkey alg
Environment: RHEL 6 and OpenSSH 5.3p1
Environment
Release : 21.2
Component : Spectrum Applications
Cause
Older versions of SSH client and RHEL SSH can only use RSA and DSA HostKey algorithms or are only configured to use these older HostKey algorithms.
Resolution
The issue was fixed after creating the ecdsa and ed25519 keys under the /etc/ssh directory of the SpectroSERVER host in RHEL 6.
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