Script for install OpenSSH Server and Ngrok tool

setup_ssh.sh

#!/bin/bash
YELLOW='\033[0;33m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color

# Install OpenSSH Server and Ngrok tool
printf "${GREEN}Install OpenSSH Server${NC}\n"
yum install -y openssh-server

# Generate certs
printf "${GREEN}Generate server certs${NC}\n"
yes y |ssh-keygen -t rsa -N "" -f /etc/ssh/ssh_host_rsa_key
yes y |ssh-keygen -t ecdsa -N "" -f /etc/ssh/ssh_host_ecdsa_key
yes y |ssh-keygen -t dsa -N "" -f /etc/ssh/ssh_host_ecdsa_key
yes y |ssh-keygen -t ed25519 -N "" -f /etc/ssh/ssh_host_ed25519_key

# Run sshd server
printf "${GREEN}Run sshd server${NC}\n"
/usr/sbin/sshd -f /etc/ssh/sshd_config -E /tmp/sshd.log

# Create authorized_keys file
touch /root/.ssh/authorized_keys

printf "${GREEN}Installing Ngrok${NC}\n"
yum install -y unzip
cd /tmp
wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
unzip ngrok-stable-linux-amd64.zip
mv ngrok /usr/bin/

printf "${GREEN}Next Steps:${NC}\n"

printf "${YELLOW}1. Add key in authorized_keys with 'echo YOUR_PUBLIC_SSH_KEY >> ~/.ssh/authorized_keys'${NC}\n"
printf "${YELLOW}2. Auth in Ngrok with 'ngrok authtoken YOUR_TOKEN_HERE'${NC}\n"
printf "${YELLOW}3. Run tunnel Ngrok with 'ngrok tcp 22'${NC}\n"