Ensure 'Maximum number of error log files' is set to greater than or equal to '12'

低レベル 1自動mssql

説明

SQL Server error log files must be protected from loss. The log files must be backed up before they are overwritten. Retaining more error logs helps prevent loss from frequent recycling before backups can occur. The SQL Server error log contains important information about major server events and login attempt information as well.

チェック方法

監査方法: SQL クエリ

sql_query

sqlcmd -b -h -1 -W -Q "SET NOCOUNT ON; DECLARE @n int; EXEC master.sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'NumErrorLogs', @n OUTPUT; SELECT CASE WHEN ISNULL(@n, -1) = -1 OR @n >= 12 THEN 'compliant' ELSE 'noncompliant' END;"

期待される出力: compliant

修正方法

修正方法: ガイダンスまたは IaC パッチ

Adjust the number of logs to prevent data loss. The default value of 6 may be insufficient for a production environment. Perform either the GUI or T-SQL method shown: GUI Method 1. Open SQL Server Management Studio. 2. Open Object Explorer and connect to the target instance. 3. Navigate to the Management tab in Object Explorer and expand. Right click on the SQL Server Logs file and select Configure 4. Check the Limit the number of error log files before they are recycled 5. Set the Maximum number of error log files to greater than or equal to 12 T-SQL Method Run the following T-SQL to change the number of error log files, replace <NumberGreaterThan11> with your desired number of error log files: EXEC master.sys.xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'NumErrorLogs', REG_DWORD, <NumberGreaterThan11>;

プロパティ

オペレーティングシステム: すべて
タグ: loggingmssqlsqlserver-2022
参照: CIS Microsoft SQL Server 2022 Benchmark v1.3.0 - 5.1 Ensure 'Maximum number of error log files' is set to greater than or equal to '12'

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target mssql