ssh is asking for a password on Tanzu Greenplum

Products

• VMware Tanzu Greenplum

Issue/Introduction

- ssh is asking for password despite the public key exchange

[gp6admin@mdw ~]$ ssh mdw
gp6admin@mdw's password: 

 

 

Environment

Product Version: 6.19

Resolution

- You can test ssh with  -vvv  option for very verbose output (this cluster is using gp6admin user which is ok)

mdw$ ssh -vvv mdw
(...)
debug1: Offering RSA public key: /home/gp6admin/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51 

 

expected output

debug1: Offering RSA public key: /home/gpadmin/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60 

- checking further on /var/log/secure we see the problem at the time when we try to ssh 

tail -f /var/log/secure
Apr 22 21:37:38 mdw sshd[197631]: reprocess config line 48: Deprecated option RSAAuthentication
Apr 22 21:37:38 mdw sshd[197631]: reprocess config line 53: Deprecated option RhostsRSAAuthentication
Apr 22 21:37:38 mdw sshd[197631]: Authentication refused: bad ownership or modes for directory /home/gp6admin 

- when checking home permissions we see the difference 

drwx------. 33 gpadmin          gpadmin     12K Apr 22 07:30 gpadmin
drwxrwxr-x  16 gp6admin         gp6admin   4.0K Apr 22 21:34 gp6admin 

- changed the permission to default 700 

[root@mdw home]# chmod 700 gp6admin/
[root@mdw home]# ls -latrh | grep admin
drwx------. 33 gpadmin          gpadmin     12K Apr 22 07:30 gpadmin
drwx------  16 gp6admin         gp6admin   4.0K Apr 22 21:34 gp6admin 

 

- and now the ssh is working without password