diff --git a/projects/bash_networking_security/SOLUTION b/projects/bash_networking_security/SOLUTION
index 2edfbaf..99bcf26 100644
--- a/projects/bash_networking_security/SOLUTION
+++ b/projects/bash_networking_security/SOLUTION
@@ -1,16 +1,32 @@
 Local DNS Server IP
 -------------------
-<ip-here>
+127.0.0.53
+
 
 
 
 Default gateway IP
 -------------------
-<ip-here>
+192.168.29.2
 
 
 
 DHCP IP allocation sys-logs
 -------------------
-<logs-here>
-
+$ grep "DHCP" /var/log/syslog
+Jun 15 00:19:05 raj-virtual-machine NetworkManager[950]: <info>  [1686768545.5255] dhcp-init: Using DHCP client 'internal'
+Jun 15 00:33:01 raj-virtual-machine NetworkManager[787]: <info>  [1686769381.7210] dhcp-init: Using DHCP client 'internal'
+Jun 15 09:31:18 raj-virtual-machine NetworkManager[787]: <info>  [1686801678.3694] dhcp4 (ens33): canceled DHCP transaction
+Jun 15 12:34:23 raj-virtual-machine NetworkManager[787]: <info>  [1686812663.6266] dhcp4 (ens33): canceled DHCP transaction
+Jun 15 23:26:53 raj-virtual-machine NetworkManager[955]: <info>  [1686851813.3395] dhcp-init: Using DHCP client 'internal'
+Jun 15 23:27:09 raj-virtual-machine NetworkManager[955]: <info>  [1686851829.5212] dhcp4 (ens33): canceled DHCP transaction
+Jun 15 23:30:28 raj-virtual-machine NetworkManager[955]: <info>  [1686852028.2316] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 00:09:00 raj-virtual-machine NetworkManager[947]: <info>  [1686854340.8814] dhcp-init: Using DHCP client 'internal'
+Jun 16 21:00:19 raj-virtual-machine NetworkManager[961]: <info>  [1686929419.0867] dhcp-init: Using DHCP client 'internal'
+Jun 16 21:12:20 raj-virtual-machine NetworkManager[961]: <info>  [1686930140.5507] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 21:12:28 raj-virtual-machine NetworkManager[961]: <info>  [1686930148.5983] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 21:16:00 raj-virtual-machine NetworkManager[961]: <info>  [1686930360.2464] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 21:16:06 raj-virtual-machine NetworkManager[961]: <info>  [1686930366.3305] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 21:16:40 raj-virtual-machine NetworkManager[961]: <info>  [1686930400.5622] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 21:16:54 raj-virtual-machine NetworkManager[961]: <info>  [1686930414.7062] dhcp4 (ens33): canceled DHCP transaction
+Jun 16 21:19:11 raj-virtual-machine NetworkManager[961]: <info>  [1686930551.7505] dhcp4 (ens33): canceled DHCP transaction
diff --git a/projects/bash_networking_security/tlsHandshake.sh b/projects/bash_networking_security/tlsHandshake.sh
index a9bf588..393e195 100644
--- a/projects/bash_networking_security/tlsHandshake.sh
+++ b/projects/bash_networking_security/tlsHandshake.sh
@@ -1 +1,61 @@
-#!/bin/bash
+#!/bin/bash -x
+
+# Step 1 - Client Hello (Client -> Server)
+RESPONSE=$(curl -X POST -H "Content-Type: application/json" -d '{
+   "version": "1.3",
+   "ciphersSuites": ["TLS_AES_128_GCM_SHA256", "TLS_CHACHA20_POLY1305_SHA256"],
+   "message": "Client Hello"
+}' http://3.141.38.247:8080/clienthello)
+
+
+# Step 2 - Server Hello (Server -> Client)
+SESSION_ID=$(echo "$RESPONSE" | jq -r '.sessionID')
+
+echo "$RESPONSE" | jq -r '.serverCert' > cert.pem
+
+
+# Step 3 - Server Certificate Verification
+wget  https://devops-feb23.s3.eu-north-1.amazonaws.com/cert-ca-aws.pem
+
+VERIFICATION=$(openssl verify -CAfile cert-ca-aws.pem cert.pem)
+
+if [ "$VERIFICATION" != "cert.pem: OK" ];
+then
+  echo "Server Certificate is invalid."
+  exit 5
+  else
+    echo "cert.pem: OK"
+fi
+
+
+# Step 4 - Client-Server master-key exchange
+#echo "Hi server, please encrypt me and send to client!" > masterKey.txt
+openssl rand -out masterKey.txt -base64 32
+
+
+
+MASTER_KEY=$(openssl smime -encrypt -aes-256-cbc -in masterKey.txt -outform DER cert.pem | base64 | tr -d '\n')
+
+
+
+# Step 5 - Server verification message
+RESPONSE=$(curl -X POST -H "Content-Type: application/json" -d '{
+  "sessionID": "'"$SESSION_ID"'",
+  "masterKey": "'"$MASTER_KEY"'",
+  "sampleMessage": "Hi server, please encrypt me and send to client!"
+}' http://3.141.38.247:8080/keyexchange)
+
+
+# Step 6 - Client verification message
+
+echo "$RESPONSE" | jq -r '.encryptedSampleMessage' > encSampleMsg.txt
+cat encSampleMsg.txt | base64 -d > encSampleMsgReady.txt
+
+decrypted_sample_msg=$(openssl enc -d -aes-256-cbc -pbkdf2 -kfile masterKey.txt -in encSampleMsgReady.txt)
+
+if [ "$decrypted_sample_msg" != "Hi server, please encrypt me and send to client!" ]; then
+  echo "Server symmetric encryption using the exchanged master-key has failed."
+  exit 6
+else
+  echo "Client-Server TLS handshake has been completed successfully"
+fiss
diff --git a/projects/bash_networking_security/vpc.sh b/projects/bash_networking_security/vpc.sh
index 951abba..6b1fad3 100644
--- a/projects/bash_networking_security/vpc.sh
+++ b/projects/bash_networking_security/vpc.sh
@@ -1,4 +1,4 @@
-REGION=""
-VPC_ID=""
-PUBLIC_INSTANCE_ID=""
-PRIVATE_INSTANCE_ID=""
\ No newline at end of file
+REGION="eu-north-1"
+VPC_ID="vpc-0b0a99ab119eb0cf7"
+PUBLIC_INSTANCE_ID="i-0a3348dc225308c83"
+PRIVATE_INSTANCE_ID="i-0b0cf0d94e141be6b"