Snel.com

uname -a

apt-get update
apt-get upgrade
apt-get dist-upgrade
apt-get autoremove
apt-get autoclean

cat /etc/debian_version         # 13.4

apt-get install git
apt-get install openssh-server
apt-get install rsyslog
apt-get install sudo
apt-get install ufw
apt-get install vim

# Optional.
folder="/etc" && if [ ! -d "${folder}.org" ]; then command cp -a "${folder}" "${folder}.org"; fi

mkdir -p /root/github
cd /root/github
git clone https://github.com/delta-software-labs/linux-toolbox.git

cd linux-toolbox
./remove-symlinks
./create-symlinks

config-bash
config-cron
config-date
config-editor
config-rsyslog
config-sudo
config-ufw
config-vim

git remote --verbose
git-incoming
git status -s
git pull

revert-bash
revert-cron
revert-date
revert-editor
revert-rsyslog
revert-sudo
revert-ufw
revert-vim

sudo apt-get install apache2

sudo mkdir -p /var/www/html/docs
sudo mkdir -p /var/www/deltasoftware
sudo ln --symbolic /var/www/html/docs/general/delta-portal.html /var/www/deltasoftware/index.html
sudo ln --symbolic /var/www/html/docs /var/www/deltasoftware/docs

cat /etc/apache2/sites-available/000-default-le-ssl.conf
# Change DocumentRoot twice from "/var/www/html" into "/var/www/deltasoftware".
# Append "ServerAlias www.deltasoftware.frl" after the "ServerName deltasoftware.frl" line.
cat /etc/apache2/sites-available/000-default-le-ssl.conf
sudo systemctl reload apache2
sudo systemctl status apache2

sudo ufw allow http
sudo ufw allow https
sudo ufw status verbose

sudo apt-get install certbot
sudo apt-get install python3-certbot-apache
sudo certbot --apache
# Type "delta@deltasoftware.frl" for the email address and press Enter.
# Type "Yes" to agree to the Terms of Service and press Enter.
# Type "No" to skip sharing the email address with the Electronic Frontier Foundation and press Enter.
# Type "deltasoftware.frl www.deltasoftware.frl" for the domain names and press Enter.

sudo certbot certificates

sudo apachectl configtest
sudo systemctl reload apache2
sudo systemctl status apache2

sudo certbot renew --dry-run

cat /etc/cron.d/certbot

apt-get install openssh-server
apt-get install ufw

config-jumphost

ssh-copy-id delta@delta-web-vps.deltasoftware.frl
ssh-copy-id root@delta-web-vps.deltasoftware.frl        # Fails due to "PermitRootLogin prohibit-password" in /etc/ssh/sshd_config.
                                                        # Instead copy the contents of the id_ed25519-auto.pub file manually to the /root/.ssh/authorized_keys file.
                                                        # And do: chmod 600 /root/.ssh/authorized_keys

sudo cat /home/delta/.ssh/authorized_keys
sudo cat /root/.ssh/authorized_keys

sudo systemctl restart ssh
sudo systemctl restart ufw

# Get ports of reverse SSH tunnels.
sudo lsof -i4tcp | grep ^ssh.*:[2-3][2-3]0.*LISTEN

# Use password authentication.
ssh.exe                                   -o ExitOnForwardFailure=yes -o ServerAliveInterval=60 -p 22222 -R :22000:127.0.0.1:22 delta@delta-web-vps.deltasoftware.frl

# Use SSH key authentication.
ssh.exe -i C:\Users\Douwe\id_ed25519-auto -o ExitOnForwardFailure=yes -o ServerAliveInterval=60 -p 22222 -R :22000:127.0.0.1:22 delta@delta-web-vps.deltasoftware.frl

ssh.exe -i C:\Users\Douwe\id_ed25519-auto delta@delta-web-vps.deltasoftware.frl

# Get ports of reverse SSH tunnels.
ssh.exe -i C:\Users\Douwe\id_ed25519-auto -t delta@delta-web-vps.deltasoftware.frl "sudo lsof -i4tcp | grep ^ssh.*:[2-3][2-3]0.*LISTEN"

# Get ports of reverse SSH tunnels.
ssh.exe -i C:\Users\Douwe\id_ed25519-auto root@delta-web-vps.deltasoftware.frl "lsof -i4tcp | grep ^ssh.*:[2-3][2-3]0.*LISTEN"

reg.exe query  HKLM\SOFTWARE\OpenSSH /v DefaultShell
reg.exe delete HKLM\SOFTWARE\OpenSSH /v DefaultShell /f

ln -s /var/www/html/docs/general/delta-portal.html general/index.html