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OpenSSH_6.7: ERROR [INS-06003] Failed to setup passwordless SSH connectivity During Grid Infrastructure Install (Doc ID 2111092.1)

Last updated on JUNE 11, 2023

Applies to:

Oracle Database - Standard Edition - Version and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Linux x86-64
OpenSSH version 6.7 installed on one or more nodes


SSH connectivity fails during installation of Grid Infrastructure despite being able to successfully ssh to each node through a shell.

installActions<time_stamp>.log shows the following:

WARNING: Failed to establish SSH connectivity with node <node_name>. Reason: Algorithm negotiation fail

Additionally, the sshsetup<time_stamp>.log will show:

INFO: An error occured which will cause the program to abort. Refer to latest Log file that was supplied while running the program. The Log file would created by name logfilename-<currentdatetime>
SEVERE: com.jcraft.jsch.JSchException: Algorithm negotiation fail   <---HERE
at com.jcraft.jsch.Session.receive_kexinit(
at com.jcraft.jsch.Session.connect(
at com.jcraft.jsch.Session.connect(
at oracle.sysman.prov.ssh.RunCommand.runCommand(
at oracle.sysman.prov.ssh.SSHSetup.runCommandHelper(
at oracle.sysman.prov.ssh.SSHSetup.validateRemoteBinaries(
at oracle.sysman.prov.ssh.SSHSetup.validateRemoteHosts(
at oracle.sysman.prov.ssh.SSHSetup.setupConnectivity(
at oracle.install.driver.oui.OUISSHSupportManager.establishSSHConnectivity(
at oracle.install.ivw.common.view.SSHSetupPane$7.perform(
at oracle.install.ivw.common.view.SSHSetupPane$



OpenSSH 6.7 is installed or was upgraded prior to start OUI:

# ssh -V
OpenSSH_6.7p1 (CentrifyDC build 5.2.3-425) , OpenSSL 0.9.8zf-fips 19 Mar 2015



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