Absolutely, you can change the default port (27042) that Frida Server uses on Android—this is totally feasible with just a simple startup flag. Let's break down the steps:

1. 临时修改端口（单次启动） #

This is the quickest way to test the new port without making permanent changes:

• First, make sure Frida Server is pushed to your device and has execution permissions (if you haven't done this already):

  adb push frida-server-<your-arch-version> /data/local/tmp/
  adb shell chmod 755 /data/local/tmp/frida-server-<your-arch-version>
  

• When starting Frida Server, use the -l (or --listen) flag to specify your desired port. For your example (127.0.0.1:567), run:

  adb shell /data/local/tmp/frida-server-<your-arch-version> -l 127.0.0.1:567
  

  Note: If you need to allow connections from remote devices (not just localhost), replace 127.0.0.1 with 0.0.0.0 to listen on all network interfaces.

2. 永久修改端口（开机自启） #

If you want Frida Server to use the new port automatically on device boot, adjust your startup configuration based on how you've set up autostart:

• If you're using an init script (e.g., in /system/etc/init/), locate the line that starts Frida Server and add the -l 127.0.0.1:567 flag to the command.
• For Magisk modules that auto-start Frida Server, edit the module's startup script (usually in /data/adb/modules/<frida-module>/service.sh) to include the port flag in the startup command.

3. 验证端口是否生效 #

To confirm Frida Server is listening on the new port, run this command on your host machine:

adb shell netstat -tulpn | grep frida-server

You should see output showing 127.0.0.1:567 (or your custom port) in the "Local Address" column.

4. 客户端连接时指定端口 #

Don't forget—when connecting from your Frida client (on your host), you need to specify the new port too:

frida -H 127.0.0.1:567 -U <your-target-package-name>

Or if you're using frida-tools like frida-trace:

frida-trace -H 127.0.0.1:567 -U -f <your-target-package-name>

内容的提问来源于stack exchange，提问作者Sai Charan