Do not expose sensitive ports

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Metadata

ID: docker-best-practices/expose-admin-ports

Language: Docker

Severity: Warning

Category: Security

Description

Never expose admin ports such as the SSH port 22 in your container. It increases the surface of attack of your containers.

Non-Compliant Code Examples

FROM debian:jessie
EXPOSE 22

Compliant Code Examples

FROM debian:jessie
EXPOSE 443

How to use this rule

1
2
rulesets:
  - docker-best-practices     # Rules to enforce Docker best practices.

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