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2.2.7 Ensure DNS Server is not installed

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Information

The Domain Name System (DNS) is a hierarchical naming system that maps names to IP addresses for computers, services and other resources connected to a network.

Unless a system is specifically designated to act as a DNS server, it is recommended that the package be removed to reduce the potential attack surface.

Solution

Run the following command to remove bind :

# yum remove bind

See Also

https://workbench.cisecurity.org/benchmarks/8415

Item Details

References: CSCv7|9.2

Plugin: Unix

Control ID: 9d2876aa149589e0c90d4b031be8e1246e380cf011d243fbb7f7a6fa9dbdcdee