# Cis Ubuntu1204 V110 6 8

> Ensure DNS Server is not enabled

- Skill: `cyberstrikeus/cis-ubuntu1204-v110-6-8` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu1204-v110-6-8`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu1204-v110-6-8/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector CAUTION)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-ubuntu1204-v110-6-8

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# 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`:

```bash
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`:

```bash
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