This Bash script performs a TCP connection test to a specified IP address and port using various utilities such as netcat, telnet, and nmap. It also checks for required dependencies and logs the results to files for later analysis.

• Target IP: 192.168.1.10
• Target Port: 44818
• Log Files:
  • YYYY-MM-DD_HH:MM:SS-tcp_connection_test.log (General log)
  • YYYY-MM-DD_HH:MM:SS-tcp_connection_test_error.log (Error log)

The script checks for the following dependencies:

• nc (netcat)
• telnet
• nmap

If any of these dependencies are missing, the script attempts to install them using apt.

1. Make sure you have bash installed.
2. Ensure you have sudo privileges if dependencies need to be installed.
3. Execute the script using ./tcp_connection_test.sh.

• General Log: Contains all script execution details, including successful connections and any errors encountered.
• Error Log: Captures errors encountered during dependency checks, installation attempts, and connection tests.

After execution, the script provides:

• Connection status (success or failure) for netcat, telnet, and nmap tests.
• Detailed logs for each test and overall script execution.
• Timestamped log files for easy tracking and debugging.

If the script fails:

• Check the error logs (YYYY-MM-DD_HH:MM:SS-tcp_connection_test_error.log) for specific error messages.
• Verify network connectivity and target device availability.
• Ensure dependencies are installed correctly and accessible.