Enabling SSH login as root user on Red Hat Enterprise Linux 9 - AWS EC2

Enabling SSH login as root user on Red Hat Enterprise Linux 9 (AWS EC2)

login as root user 

cd /etc/ssh/sshd_config.d

[root@ip-110.1.1.1.1 sshd_config.d]# ls -lrt

total 8

-rw-------. 1 root root 719 Jan  8 12:31 50-redhat.conf

-rw-------. 1 root root  27 Mar 14 16:19 50-cloud-init.conf

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]# vi 50-cloud-init.conf

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]# systemctl status sshd

● sshd.service - OpenSSH server daemon

     Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; preset: enabled)

     Active: active (running) since Thu 2024-03-14 16:17:41 UTC; 1min 49s ago

       Docs: man:sshd(8)

             man:sshd_config(5)

   Main PID: 1301 (sshd)

      Tasks: 1 (limit: 50306)

     Memory: 1.4M

        CPU: 39ms

     CGroup: /system.slice/sshd.service

             └─1301 "sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups"

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal systemd[1]: Starting OpenSSH server daemon...

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal sshd[1301]: Server listening on 0.0.0.0 port 22.

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal sshd[1301]: Server listening on :: port 22.

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal systemd[1]: Started OpenSSH server daemon.

Mar 14 16:17:51 ip-110.1.1.1.1.ec2.internal sshd[1302]: error: Received disconnect from 150.242.66.235 port 9857:14: No supp>

Mar 14 16:17:51 ip-110.1.1.1.1.ec2.internal sshd[1302]: Disconnected from authenticating user oracle 150.242.66.235 port 985>

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]# systemctl stop sshd

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]# systemctl status sshd

○ sshd.service - OpenSSH server daemon

     Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; preset: enabled)

     Active: inactive (dead) since Thu 2024-03-14 16:19:45 UTC; 2s ago

   Duration: 2min 3.674s

       Docs: man:sshd(8)

             man:sshd_config(5)

    Process: 1301 ExecStart=/usr/sbin/sshd -D $OPTIONS (code=exited, status=0/SUCCESS)

   Main PID: 1301 (code=exited, status=0/SUCCESS)

        CPU: 41ms

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal systemd[1]: Starting OpenSSH server daemon...

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal sshd[1301]: Server listening on 0.0.0.0 port 22.

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal sshd[1301]: Server listening on :: port 22.

Mar 14 16:17:41 ip-110.1.1.1.1.ec2.internal systemd[1]: Started OpenSSH server daemon.

Mar 14 16:17:51 ip-110.1.1.1.1.ec2.internal sshd[1302]: error: Received disconnect from 150.242.66.235 port 9857:14: No supp>

Mar 14 16:17:51 ip-110.1.1.1.1.ec2.internal sshd[1302]: Disconnected from authenticating user oracle 150.242.66.235 port 985>

Mar 14 16:19:45 ip-110.1.1.1.1.ec2.internal sshd[1301]: Received signal 15; terminating.

Mar 14 16:19:45 ip-110.1.1.1.1.ec2.internal systemd[1]: Stopping OpenSSH server daemon...

Mar 14 16:19:45 ip-110.1.1.1.1.ec2.internal systemd[1]: sshd.service: Deactivated successfully.

Mar 14 16:19:45 ip-110.1.1.1.1.ec2.internal systemd[1]: Stopped OpenSSH server daemon.

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]# systemctl start sshd

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]# systemctl status sshd

● sshd.service - OpenSSH server daemon

     Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; preset: enabled)

     Active: active (running) since Thu 2024-03-14 16:19:58 UTC; 3s ago

       Docs: man:sshd(8)

             man:sshd_config(5)

   Main PID: 1327 (sshd)

      Tasks: 1 (limit: 50306)

     Memory: 1.3M

        CPU: 11ms

     CGroup: /system.slice/sshd.service

             └─1327 "sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups"

Mar 14 16:19:58 ip-110.1.1.1.1.ec2.internal systemd[1]: Starting OpenSSH server daemon...

Mar 14 16:19:58 ip-110.1.1.1.1.ec2.internal sshd[1327]: Server listening on 0.0.0.0 port 22.

Mar 14 16:19:58 ip-110.1.1.1.1.ec2.internal sshd[1327]: Server listening on :: port 22.

Mar 14 16:19:58 ip-110.1.1.1.1.ec2.internal systemd[1]: Started OpenSSH server daemon.

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#

[root@ip-110.1.1.1.1 sshd_config.d]#