You need to open port: 5991 on your server to allow our agent to connect your server to the application.
First, verify that UFW (Uncomplicated Firewall) is installed and active on your system.
sudo ufw statussudo apt-get install ufwsudo ufw enableTo allow traffic on port 5991, use the following command:
Allow TCP and UDP Traffic on port 5991: sudo ufw allow 5991 This command allows both TCP and UDP traffic on port 5991.
After adding the rule, confirm that it has been applied correctly.
sudo ufw status You should see an entry that lists port 5991 as allowed.Although UFW typically applies changes immediately, you can reload it to ensure the new rules are applied:
sudo ufw reload