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Author: hnasr

16-https/createcert.txt

@@ -0,0 +1,6 @@
+
+#create private key 
+openssl genrsa -out private-key.pem 2048
+
+#create certificate and self-sign it with the private key
+openssl req -new -x509 -key private-key.pem -out certificate.pem -days 365

16-https/cert.txt renamed to 16-https/x.509.txt

@@ -11,5 +11,5 @@ server.on('listening', () => {
   console.log(`server listening ${address.address}:${address.port}`);
 });
 
-server.bind(41234);
-// Prints: server listening 0.0.0.0:41234
+server.bind(3333);
+// Prints: server listening 0.0.0.0:3333

19-udp/190-UDP-Server.js

@@ -5,6 +5,9 @@ client.on('message', (msg, rinfo) => {
   console.log(`client got: ${msg} from ${rinfo.address}:${rinfo.port}`);
 });
 
+//optional but we can bind to a random port of our choice
+client.bind(55555);
+
 client.connect( 3333,"127.0.0.1", () => {
   console.log ("server exists .. send something.. ")
   //notice that its called send and not write 

19-udp/191-UDP-Client.js

@@ -1,5 +1,7 @@
 //chaining pipes
-//we read, , encrypt,compress write.. 
+//we read, , encrypt (duplex),compress (duplex) -> write.. 
+
+//readstream --> (write) encrypt (duplex) (read) -> (write) compress (read) --> write to file
 const fs = require('fs');
 const crypto = require('crypto');
 const gzip = require('node:zlib').createGzip();