[FATAL] [INS-06006] Passwordless SSH connectivity not set up between the following node(s): [rac2]
Tags： INS-06006Oracleracssh互信安全组故障处理高可用
👉 本文共约573个字，系统预计阅读时间或需3分钟。
现象
CentOS 7.6 安装Oracle 11.2.0.4 rac，静默安装grid集群软件报错：
1 2 3 | [FATAL] [INS-06006] Passwordless SSH connectivity not set up between the following node(s): [oarac2]. CAUSE: Either passwordless SSH connectivity is not setup between specified node(s) or they are not reachable. Refer to the logs for more details. ACTION: Refer to the logs for more details or contact Oracle Support Services. |
其它现象：
1、用以下命令已经配置过互信了，而且可以确定互信是配置成功的：
1 2 | /soft/database/sshsetup/sshUserSetup.sh -user oracle -hosts "oarac1 oarac2" -advanced exverify –confirm /soft/database/sshsetup/sshUserSetup.sh -user grid -hosts "oarac1 oarac2" -advanced exverify –confirm |
因为以下命令可以不输入密码就可以返回日期的：
1 2 3 4 5 | ssh oracle@rac2 date ssh grid@rac2 date ssh oracle@rac1 date ssh grid@rac1 date |
2、奇怪的地方是，用ssh互相连接的时候不能连接
本人提供Oracle(OCP、OCM)、MySQL(OCP)、PostgreSQL(PGCA、PGCE、PGCM)等数据库的培训和考证业务，私聊QQ646634621或微信db_bao，谢谢！
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | ssh oracle@rac2 ssh oracle@rac2 ssh root@rac2 [root@oarac1 ~]# ssh root@oarac2 ssh: connect to host oarac2 port 22: Connection timed out [oracle@oarac1 ~]$ ssh oracle@oarac2 -vvvv OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017 debug1: Reading configuration data /home/oracle/.ssh/config debug1: /home/oracle/.ssh/config line 1: Applying options for * debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 58: Applying options for * debug2: resolving "oarac2" port 22 debug2: ssh_connect_direct: needpriv 0 debug1: Connecting to oarac2 [172.20.7.82] port 22. debug1: connect to address 172.20.7.82 port 22: Connection timed out ssh: connect to host oarac2 port 22: Connection timed out |
防火墙和selinux都已关闭！！！
原因
华为云服务器的安全组拒绝了22端口：
![[FATAL] [INS-06006] Passwordless SSH connectivity not set up between the following node(s): [rac2]](https://pic.xmmup.com/i/2022/11/24/202211241906596-3.png "[FATAL] [INS-06006] Passwordless SSH connectivity not set up between the following node(s): [rac2]")
解决
修改该安全组问题得到解决。
其它可能的原因
1、主机名不能大写，需要改为小写，请参考：https://blog.csdn.net/m0_37625564/article/details/115242416 和 MOS：11.2.0.4 runInstaller: [INS-06006] Passwordless SSH connectivity not set up between the following nodes(s) (Doc ID 1597212.1)
2、需要删除虚拟机自带的虚拟网卡virbr0
1 2 3 4 5 | 1、ifconfig virbr0 down 2、brctl delbr virbr0 3、systemctl disable libvirtd 4、重启虚拟机 5、将原来的rm -rf /home/grid/.ssh文件删除，重新Setup,Test即可 |
3、若是AIX系统，则可以如下解决：
1 2 3 4 5 | ln -s /usr/bin/ksh /bin/bash mkdir -p /usr/local/bin ln -s /usr/bin/ssh-keygen /usr/local/bin/ssh-keygen ln -s /usr/bin/ssh /usr/local/bin/ssh ln -s /usr/bin/scp /usr/local/bin/scp |
4、用户密码错误
5、环境变量配置错误
