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Can't open port on CentOS

I installed docker on vds with CentOS, installed image and can't access application via port 9222.

The same image works well and if it runs on docker locally on my pc with windows or mac os and I have access by browser using port 9222. I opened port using

iptables -I INPUT -p tcp --dport 9222 -j ACCEPT

Stoped and disabled firewalld And still I can't access the port

nc -zv xx.xx.xx.xx 9222

nc: connectx to xx.xx.xx.xx port 9222 (tcp) failed: Connection refused

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