What should I do if navicat does not have localhost?

No localhost server in Navicat may be because the database service is not started, the server alias is incorrectly configured, a firewall blocks access, the alias does not match the instance, or a remote connection problem. Workarounds include starting the database service, configuring the server alias correctly, allowing inbound connections on port 1433, matching the server alias to the instance, and checking the remote connection configuration. If this persists, seek help from your system administrator or database vendor.

What to do if there is no localhost server in Navicat

When there is no localhost server in Navicat, it may be due to the following reasons :

Cause 1: The database service is not started

• Open the Windows Service Manager (services.msc).
• Find and start the service named SQL Server (MSSQLSERVER).

Cause 2: The server alias is configured incorrectly

• Open Navicat and click the "Connection" tab.
• In the Connection dialog box, click Add Connection.
• In the "Connection Name" field, enter a name (for example, "Local Server").
• In the Host field, enter localhost or 127.0.0.1.
• In the Port field, enter 1433.
• Click "Test Connection". If the connection is successful, it means that the server alias is configured correctly.

Cause 3: Firewall blocking access

• In Windows Firewall, allow inbound connections to port 1433.
• Open Windows Firewall (firewall.cpl).
• Click "Allow an app or feature through Windows Firewall".
• Locate the SQL Server entry and select the Private and Public checkboxes.

Cause 4: The alias does not match the instance

• Make sure that the server alias in Navicat matches the name or port of the SQL Server instance.
• In SQL Server Management Studio, right-click the server name and select Properties.
• In the Connection tab, verify the Server Name and Default Port fields.

Cause 5: Remote connection issues

• If you are trying to connect to a remote server, make sure:

  • The server has been started.
  • You have permission to connect to the server.
  • The firewall is not blocking the connection.

If you have tried the above solutions and still cannot find the localhost server in Navicat, please contact your system administrator or database vendor for further assistance.

The above is the detailed content of What should I do if navicat does not have localhost?. For more information, please follow other related articles on the PHP Chinese website!