switched sample http server to invoke with privs and listen in port 80

Author: DougAnsonAustinTX

content/learning-paths/servers-and-cloud-computing/node-js-gcp/baseline.md

@@ -43,36 +43,28 @@ const server = http.createServer((req, res) => {
   res.end('Baseline test successful!\n');
 });
 
-server.listen(3000, '0.0.0.0', () => {
-  console.log('Server running at http://0.0.0.0:3000/');
+server.listen(80, '0.0.0.0', () => {
+  console.log('Server running at http://0.0.0.0:80/');
 });
 ```
- - This server listens on port 3000.
+ - This server listens on port 80.
  - Binding to 0.0.0.0 allows connections from any IP, not just localhost.
 
 Run the server in the background:
 
 ```console
-node app.js &
+export MY_NODE=`which node`
+sudo ${MY_NODE} app.js &
 ```
 You should see an output similar to:
 
 ```output
-Server running at http://0.0.0.0:3000/
+Server running at http://0.0.0.0:80/
 ```
-{{% notice Note %}}
-Make sure your GCP firewall allows TCP traffic on port 3000. On SUSE Arm64, internal firewalls are usually disabled, so only the GCP firewall needs to be configured.
-
-```console
-sudo zypper install -y firewalld
-sudo firewall-cmd --permanent --add-port=3000/tcp
-sudo firewall-cmd --reload
-```
-{{% /notice %}}
 #### Test Locally with Curl
 
 ```console
-curl http://localhost:3000
+curl http://localhost:80
 ```
 
 You should see an output similar to:
@@ -85,7 +77,7 @@ Baseline test successful!
 Also, you can access it from the browser with your VM's public IP. Run the following command to print your VM’s public URL, then open it in a browser:
 
 ```console
-echo "http://$(curl -s ifconfig.me):3000/"
+echo "http://$(curl -s ifconfig.me):80/"
 ```
 
 You should see the following message in your browser, confirming that your Node.js HTTP server is running successfully:

content/learning-paths/servers-and-cloud-computing/node-js-gcp/benchmarking.md

@@ -21,27 +21,28 @@ npm install -g autocannon
 
 If your sample HTTP server is not already running from the last section, you can start it by typing:
 ```console
-node app.js &
+export MY_NODE=`which node`
+sudo ${MY_NODE} app.js &
 ```
 
-Server should be listening on port 3000 in the background:
+Server should be listening on port 80 in the background:
 
 ```output
-Server running at http://0.0.0.0:3000/
+Server running at http://0.0.0.0:80/
 ```
 
 ### Run a Basic Benchmark (Local)
 
 ```console
-autocannon -c 100 -d 10 http://localhost:3000
+autocannon -c 100 -d 10 http://localhost:80
 ```
 - `-c 100` → 100 concurrent connections
 - `-d 10` → duration 10 seconds
 - URL → endpoint to test
 
 You should see an output similar to:
 ```output
-Running 10s test @ http://localhost:3000
+Running 10s test @ http://localhost:80
 100 connections