Network check script

bash/network-check.sh

@@ -1 +1,36 @@
-#Develop a script to output: Active network connections and log them in a file
+#!/bin/bash
+# Script to log active network connections
+
+# Variables
+LOG_DIR="/var/log/network_logs"    # Directory to store logs
+LOG_FILE="$LOG_DIR/connections_$(date +%Y%m%d_%H%M%S).log" # Log file with timestamp
+
+# Create the log directory if it doesn't exist
+if [ ! -d "$LOG_DIR" ]; then
+    sudo mkdir -p "$LOG_DIR"
+    sudo chmod 755 "$LOG_DIR"
+    echo "Log directory created: $LOG_DIR"
+fi
+
+# Get active network connections
+echo "Fetching active network connections..."
+if command -v ss &>/dev/null; then
+    # Use ss if available
+    ss -tunap > "$LOG_FILE"
+    echo "Active connections logged using 'ss' command."
+elif command -v netstat &>/dev/null; then
+    # Fallback to netstat if ss is not available
+    netstat -tunap > "$LOG_FILE"
+    echo "Active connections logged using 'netstat' command."
+else
+    echo "Error: Neither 'ss' nor 'netstat' is available on this system."
+    exit 1
+fi
+
+# Output file location and a summary to the console
+echo "Active connections logged to: $LOG_FILE"
+echo "Summary of connections:"
+tail -n 5 "$LOG_FILE"  # Display the last 5 lines of the log file
+
+exit 0
+