ECONNREFUSED - Connection refused

root@linuxfix:~/econnrefused$

ECONNREFUSED

Connection refused

Solutions

Prerequisites: Start by updating your system to resolve common issues and ensure the solutions provided below are compatible with your current environment.

check_latest_version && sudo apt update && sudo apt upgrade -y

Check if service is running

Verify target service status:

sudo systemctl status service_name

ps aux | grep service_name

sudo netstat -tulpn | grep port

Test connectivity

Check network connectivity:

ping target_host

telnet target_host port

nc -zv target_host port

Check firewall rules

Verify firewall configuration:

sudo iptables -L

sudo ufw status

sudo firewall-cmd --list-all

Start the service

Start the target service:

sudo systemctl start service_name

sudo service service_name start

What is ECONNREFUSED?

ECONNREFUSED occurs when a connection attempt is rejected by the target host.

Common scenarios: Service not running, firewall blocking connection, or wrong port/address.

Common Causes

Target service not running
Firewall blocking connection
Wrong IP address or port
Service listening on different interface
Network configuration issues

Debugging Tips

traceroute target_host

nmap -p port target_host

ss -tulpn

curl -v http://target:port

Prevention

Monitor service health
Configure proper firewall rules
Use service discovery
Implement health checks

Additional Resources

Linux Network Troubleshooting

Network connectivity troubleshooting guide

errno network connection service