#!/bin/bash

# Change network interface IP address
ip addr flush dev enp0s8
ip addr add 192.168.56.11/24 dev enp0s8
ip link set dev enp0s8 up

# Update resolv.conf with DNS servers
echo "nameserver 8.8.8.8" > /etc/resolv.conf
echo "nameserver 8.8.4.4" >> /etc/resolv.conf

# Update sources.list
echo "# halo:)
deb http://deb.debian.org/debian bullseye main
deb-src http://deb.debian.org/debian bullseye main

deb http://deb.debian.org/debian-security/ bullseye-security main
deb-src http://deb.debian.org/debian-security/ bullseye-security main

deb http://deb.debian.org/debian bullseye-updates main
deb-src http://deb.debian.org/debian bullseye-updates main" > /etc/apt/sources.list

# Update enp0s3 interface configuration
sed -i 's/\r$//' /etc/network/interfaces

# Restart networking service
systemctl restart networking

# Install SSH
apt install openssh-server -y

# Modify SSH configuration to allow root login
sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config

# Restart SSH service
systemctl restart ssh

# Ping the host (192.168.56.1) and google.com for confirmation
ping -c 5 192.168.56.1
ping -c 5 google.com

echo "IP address, DNS servers, sources.list, SSH configured, and ping tests completed!"