Oracle Grid 11.2.0.4 installation occurs "[INS-41112] Specified network interface doesnt maintain connectivity across cluster" error

Installing the Oracle 11.2.0.4 RAC, installing the Times in the grid error:

[INS-41112] Specified network interface doesnt maintain connectivity across cluster nodes

There is no problem in trying to ping each IP address between nodes first.

Because of SSH authentication using the installer, try to test whether the SSH remote connection also needs to be confirmed:

[Email protected] ~]$SSHVdb1Date# Verify VDB1SSHThu7  the: -: -Cst the[[Email protected]~]$SSHVdb2Date# Verify VDB2SSHThu7  the: -: theCst the[[Email protected]~]$SSHVdb1-privDate# Verify Vdb1-privSSHThe authenticity of host'Vdb1-priv (172.168.1.18)'Can't be established.RSA Key fingerprint is the: the: $:Panax Notoginseng: 7b:fe:b0: to: 5a:9b:ec:b5:3f:d1: -: 8f. Is you sure want to continue connecting (yes/no)?Yes warning:permanently added'vdb1-priv,172.168.1.18'(RSA) to the list of known hosts. Thu7  the: +: toCst the[[Email protected]~]$SSHVdb2-privDate# Verify Vdb2-privSSHThe authenticity of host'Vdb2-priv (172.168.1.19)'Can't be established.RSA Key fingerprint is the: the: $:Panax Notoginseng: 7b:fe:b0: to: 5a:9b:ec:b5:3f:d1: -: 8f. Is you sure want to continue connecting (yes/no)?Yes warning:permanently added'vdb2-priv,172.168.1.19'(RSA) to the list of known hosts. Thu7  the: +: -Cst the

It is found that using Vdb1-priv and Vdb2-priv requires confirmation that the step does not pass validation after the 2 nodes are mutually acknowledged.

The check found that the problem was resolved without shutting down the firewall and shutting down the two-node firewall.