Cloudera Manager unable to load curl localhost:7180



I am using AWS to setup Hadoop. I installed cloudera manager but unable to connect through browser.

I tried all different possibilities nothing seems working out

Below are some of errors:

curl localhost:7180
curl: (7) Failed connect to localhost:7180; Connection refused

service cloudera-scm-server status
● cloudera-scm-server.service - LSB: Cloudera SCM Server
Loaded: loaded (/etc/rc.d/init.d/cloudera-scm-server; bad; vendor preset: disabled)
Active: active (exited) since Sat 2018-02-24 16:43:14 UTC; 2h 0min ago
Docs: man:systemd-sysv-generator(8)
Process: 905 ExecStart=/etc/rc.d/init.d/cloudera-scm-server start (code=exited, status=0/SUCCESS)

less /etc/sysconfig/iptables
/etc/sysconfig/iptables: No such file or directory

Please let me know what are the changes I need to make to ensure CM is up and running…

Thanks in Advance…