cyberstrikeus 6.8 Ensure DNS Server is not enabled (Not Scored)
Profile Applicability
- Level 1
Description
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.
Rationale
Unless a server is specifically designated to act as a DNS server, it is recommended that the package be deleted to reduce the potential attack surface.
Audit Procedure
Using Command Line
Run the following to ensure no start links for bind9 exist in /etc/rc*.d:
ls /etc/rc*.d/S*bind9
Expected Result
No results should be returned.
Remediation
Using Command Line
Remove any start links for bind9 from /etc/rc*.d:
rm /etc/rc*.d/S*bind9
Default Value
Not installed by default on Ubuntu 12.04 LTS Server.
References
- CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0
Profile
Level 1 - Not Scored