# MS SQL localhost 無法連線問題 ## Step 1. Open SQL Server Configuration Manager ![image](https://hackmd.io/_uploads/rJiB_losA.png) ## Step 2. Enable TCP/IP in SQL Server ![image](https://hackmd.io/_uploads/rJLzdgii0.png) ## Ref https://stackoverflow.com/questions/19348255/pymssql-operationalerror-db-lib-error-message-20009-severity-9