Problem: Nginx "Conflicting Server Name" Error
The Nginx "Conflicting Server Name" error happens when multiple server blocks in the Nginx configuration file use the same server name. This error can stop Nginx from routing requests to the correct virtual host, which may cause issues with website access.
Step-by-Step Solution to Resolve the Error
Reviewing and Cleaning Up Configuration Files
To fix the Nginx "Conflicting Server Name" error, review and clean up your configuration files. Check for duplicate server_name entries in your Nginx configuration files. Remove any duplicates to avoid conflicts.
Delete temporary or backup files that may cause issues. These files often have extensions like .save, .bak, or end with a tilde (~). Use this command in your Nginx configuration directory to spot these files:
ls -lahRemove the identified files.
Consolidate conflicting server blocks. If you have multiple server blocks with the same server_name, combine them into one block or use different server names for each.
Tip: Use Include Directives
Use include directives in your main Nginx configuration file to organize and manage your server blocks more efficiently. This can help prevent conflicts and make it easier to spot duplicate entries.
Correcting Server Block Configurations
When correcting server block configurations, define server_name directives properly. Use domain names or IP addresses for clarity.
Give each server block a unique server name. This helps Nginx route requests to the correct virtual host without conflicts.
Check the listen directives in your server blocks. Set them correctly to avoid conflicts with other server blocks.
Testing and Applying Changes
After making changes, test your Nginx configuration. Use this command to check the syntax of your configuration files:
nginx -tThis helps you spot errors before applying the changes.
If the syntax check passes, reload the Nginx service to apply your changes. Use one of these commands, depending on your system:
sudo systemctl reload nginxor
sudo service nginx reloadCheck the Nginx error logs and test your website to make sure the error is resolved.
Example: Debugging Nginx Configuration
If you're still experiencing issues, use the following command to get more detailed debugging information:
nginx -TThis command will display the entire Nginx configuration, including all included files, helping you identify any remaining conflicts or issues.
