[Setup] Setup Safety For A Remote Database Management Connection

Preparation and tools Use VMWare Workstation 15 Pro to run 2 OS: – Kali 19.04 (server machine):                       IP 192.168.5.136– Ubuntu 12.04.5 (remote machine):    IP 192.168.5.142 *Make sure that the two machines can ping each other successfully over the ICMP protocol. Start 2.1. Remote Access with Telnet Protocol — Step 1: On the Kali machine,

[Setup] Setup IPSec Connection using OPENSWAN

Preparation and tools Use VMWare Workstation 15 Pro to run 2 OS: – Ubuntu 12.04.5 (local): IP 192.168.5.142 (@localserver)– Ubuntu 12.04.5 Ver2 (máy đầu xa): IP 192.168.5.143 (@remoteclient) *Make sure that the two machines can ping each other successfully over the ICMP protocol. Start — Step 1: Download and Install OPENSWAN on both machines, use

VPN – Virtual Private Network

What is VPN? VPN is a network technology that helps create a secure network connection when joining a public network such as the Internet or a private network owned by a service provider. Large corporations, educational institutions, and government agencies use VPN technology to allow remote users to securely connect to their own private network.

[Attack] Using Reverse TCP to get shell

1. Purpose. What is Reverse shell/Reverse TCP? A reverse shell is a type of shell in which the target machine communicates back to the attacking machine. The attacking machine has a listener port on which it receives the connection, which by using, code or command execution is achieved. Its purpose is to hijack cmd on

[Fix] Error compiling 32-bit C language shellcode on 64-bit Linux machine

If your Linux is 64-bit and you wanna compile a .c file into a 32-bit .o file by gcc compiler, but get an error as the following while compiling, means that the compiler cannot find the libc-header-start.h file/library. “fatal error: bits/libc-header-start.h: No such file or directory” Now you try checking whether any file named libc-header-start.h

[Fix] apt-get install/update/upgrade not working on Kali Linux – source.list

What is source.list file? On Kali Linux, Ubuntu or any certain operation system (OS) which is Linux kernel, a source.list file is a source to provide applications, tools or libraries for installation on the system. If the OS after the installation does not have the source.list file or the source.list file is empty or all