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security: remove mention of "TiFlow" (#21886) #21887

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Oct 11, 2025
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security: remove mention of "TiFlow" (#21886) #21887

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Update best-practices-for-security-configuration.md
hfxsd Oct 11, 2025
a2abb3d
Update best-practices-for-security-configuration.md
hfxsd Oct 11, 2025
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Update best-practices-for-security-configuration.md
hfxsd Oct 11, 2025
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16 changes: 8 additions & 8 deletions best-practices-for-security-configuration.md
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Expand Up @@ -64,7 +64,7 @@ By default, TiDB Dashboard is designed for trusted users. The default port inclu

By default, TiDB installation includes several privileged interfaces for inter-component communication. These ports typically do not need to be accessible to users, because they are primarily for internal communication. Exposing these ports on public networks increases the attack surface, violates the principle of least privilege, and raises the risk of security vulnerabilities. The following table lists the default listening ports in a TiDB cluster:

| Component | Default port | Protocol |
| Component | Default port| Protocol |
|-------------------|-------------|------------|
| TiDB | 4000 | MySQL |
| TiDB | 10080 | HTTP |
Expand All @@ -76,15 +76,15 @@ By default, TiDB installation includes several privileged interfaces for inter-c
| TiFlash | 20170 | Protocol |
| TiFlash | 20292 | HTTP |
| TiFlash | 8234 | HTTP |
| TiFlow | 8261 | HTTP |
| TiFlow | 8291 | HTTP |
| TiFlow | 8262 | HTTP |
| TiFlow | 8300 | HTTP |
| DM master | 8261 | HTTP |
| DM master | 8291 | HTTP |
| DM worker | 8262 | HTTP |
| TiCDC | 8300 | HTTP |
| TiDB Lightning | 8289 | HTTP |
| TiDB Operator | 6060 | HTTP |
| TiDB Dashboard | 2379 | HTTP |
| TiDB Binlog | 8250 | HTTP |
| TiDB Binlog | 8249 | HTTP |
| TiDB Binlog | 8250 | HTTP |
| TiDB Binlog | 8249 | HTTP |
| TMS | 8082 | HTTP |
| TEM | 8080 | HTTP |
| TEM | 8000 | HTTP |
Expand All @@ -98,7 +98,7 @@ By default, TiDB installation includes several privileged interfaces for inter-c
| AlertManager | 9093 | HTTP |
| AlertManager | 9094 | Protocol |
| Node Exporter | 9100 | HTTP |
| Blackbox Exporter | 9115 | HTTP |
| Blackbox Exporter | 9115 | HTTP |
| NG Monitoring | 12020 | HTTP |

It is recommended to only expose the `4000` port for the database and the `9000` port for the Grafana dashboard to ordinary users, while restricting access to other ports using network security policies or firewalls. The following is an example of using `iptables` to restrict port access:
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