# Cis Ubuntu1604 V200 2 1 16

> Ensure rsync service is not installed

- Skill: `cyberstrikeus/cis-ubuntu1604-v200-2-1-16` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ubuntu1604-v200-2-1-16`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ubuntu1604-v200-2-1-16/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- 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-ubuntu1604-v200-2-1-16

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# 2.1.16 Ensure rsync service is not installed (Automated)

## Description

The rsync service can be used to synchronize files between systems over network links.

## Rationale

The rsync service presents a security risk as it uses unencrypted protocols for communication. The rsync package should be removed to reduce the attack area of the system.

## Audit Procedure

### Command Line

Run the following command to verify rsync is not installed:

```bash
dpkg -s rsync | grep -E '(Status:|not installed)'
```

## Expected Result

```
dpkg-query: package 'rsync' is not installed and no information is available
```

## Remediation

### Command Line

Run the following command to remove rsync:

```bash
apt purge rsync
```

## Default Value

rsync is not installed on minimal server installations.

## References

1. CIS Controls v7 - 9.2 Ensure Only Approved Ports, Protocols and Services Are Running

## Profile

- Level 1 - Server
- Level 1 - Workstation