Able to ssh to my droplet but unable to ping or call my services deployed on the droplet.

What I want to achieve

curl “http://128.199.27.21:9898/my_api”

success response

The response I am getting

curl: (7) Failed to connect to 128.199.27.21 port 9898: Connection refused

What I have done so far

I just created an Ubuntu droplet, I am able to ssh to this droplet without any problem. Deployed my API, API calls are success if I do curl with localhost:port.

However when I try to call the API from my personal laptop it fails. I am unable to ping droplet’s IP from my personal laptop. I searched various websites for possible answers, found few solutions stating enabling/disabling and allowing particular IP using “ufw” but that solution is not working. I even tried modifiying Firewall rules through Digital Ocean Control Panel to allow inbound traffic for tcp/udp/ssh/http/https/icmp from all IPv4 and IPv6 but it isn’t working either.

OUTPUT:

lsof -i :9898

COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
R        231   root   15u  IPv4  69259      0t0  TCP localhost:9898 (LISTEN)

ufw status

Status: active

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere                  
22/tcp                     ALLOW       Anywhere                  
80/tcp                     ALLOW       Anywhere                  
443/tcp                    ALLOW       Anywhere                  
OpenSSH (v6)               ALLOW       Anywhere (v6)             
22/tcp (v6)                ALLOW       Anywhere (v6)             
80/tcp (v6)                ALLOW       Anywhere (v6)             
443/tcp (v6)               ALLOW       Anywhere (v6)  

Even disabled ufw but it is still not working

Deleted the Firewall rules from DigitalOcean Control Panel still no response.