Do Not Install a Multi-Use System

中等級 1人工審核bind

說明

Default server configurations often expose a wide variety of services unnecessarily increasing the risk to the system. Just because a server can perform many services doesn't mean it is wise to do so. The number of services and daemons executing on the ISC BIND DNS server should be limited to those necessary, with the DNS service being the only primary function of the server. Manual review: the check needs remote queries, architecture knowledge or site policy.

檢查方式

稽核方法: 人工審核

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Leverage the package or services manager for your OS to list enabled services and review to ensure each service is necessary and has a documented business need. On Red Hat systems, the following commands will produce the list of current services enabled. The systemctl command lists any systemd based services, which are common on current Linux systems while chkconfig will list any older traditional SysV based services. # systemctl -t service --state enabled list-unit-files # chkconfig --list | grep ':on'

修補方式

修補方法: 操作指南或基礎設施修補檔

Disable all unnecessary services or move necessary primary services other than DNS to another server. Leverage the package or services manager for your OS to uninstall or disable unneeded services. On Red Hat systems, the following commands may be used to uninstall a package or disable a service: # yum erase <package name> # systemctl disable <service name>

屬性

作業系統: 不限
標籤: binddnsarchitecture
參考資料: CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 1.2 Do Not Install a Multi-Use System