Common Problems

This section covers common problems and their solutions for the Keralis system.

Inaccessible API

If the hash server API is inaccessible:

1. Check that the service is running:

   pm2 status hash-server

2. Restart the service:

   pm2 restart hash-server

3. Check the logs and identify the problem:

   pm2 logs hash-server

4. Check port and firewall configuration:

   netstat -tulpn | grep 3001
   sudo ufw status

Emails Not Received

If email alerts are not being received:

1. Check the SMTP configuration in the .env file

2. Test email sending with the test script:

   cd /root/keralis/blockchain
   node test-integrity-system.js

3. Check logs for SMTP errors:

   pm2 logs blockchain-checker

4. Make sure your SMTP server allows connections from the blockchain server's IP address

Inaccessible Dashboard

If the dashboard is inaccessible:

1. Check that the service is running:

   pm2 status dashboard

2. Restart the service:

   pm2 restart dashboard

3. Check logs to identify the problem:

   pm2 logs dashboard

4. Check firewall configuration (see Inaccessible API section)

MongoDB Connection Problems

If you encounter problems with MongoDB:

1. Check that MongoDB is running:

   sudo systemctl status mongod

2. Restart MongoDB:

   sudo systemctl restart mongod

3. Check MongoDB logs:

   sudo tail -f /var/log/mongodb/mongod.log

4. Check connection configuration in the .env file