需要描述开启TiDB内部TLS通信对tiup的影响，及其应对措施
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Description
File: /release-8.5/enable-tls-between-components.md
目前（v8.5），tiup可以自动在tiup cluster tls里给自己签发证书，但是对于部署时就采用自签发证书进行内部组件通信的tidb集群，则缺乏tiup鉴权相关描述，希望补充，谢谢！
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with release-8.5/enable-tls-between-components.md and review the existing tiup cluster tls guidance. Then trace how TiUP handles clusters deployed with self-signed internal component certificates. Done means the page explains the impact on TiUP authentication and documents the required response or configuration steps.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100