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Update Java flamegraph Learning Path #2213

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Aug 7, 2025
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Update Java flamegraph Learning Path #2213

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7 changes: 4 additions & 3 deletions content/learning-paths/servers-and-cloud-computing/java-perf-flamegraph/1_setup.md
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Expand Up @@ -37,12 +37,13 @@ Alternatively, you can build Tomcat [from source](https://github.com/apache/tomc

## Enable access to Tomcat examples

To access the built-in examples from your local network or external IP, modify the `context.xml` file:
To access the built-in examples from your local network or external IP, use a text editor to modify the `context.xml` file by updating the `RemoteAddrValve` configuration to allow all IP addresses.

The file is at:

```bash
vi apache-tomcat-11.0.9/webapps/examples/META-INF/context.xml
apache-tomcat-11.0.9/webapps/examples/META-INF/context.xml
```
Update the `RemoteAddrValve` configuration to allow all IPs:

<!-- Before -->
<Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
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