diff --git a/ubuntu/20.04/Dockerfile b/ubuntu/20.04/Dockerfile
new file mode 100644
index 0000000..d3bace5
--- /dev/null
+++ b/ubuntu/20.04/Dockerfile
@@ -0,0 +1,40 @@
+# Dockerfile
+FROM ubuntu:focal
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    curl \
+    devscripts \
+    equivs \
+    git-buildpackage \
+    git \
+    lsb-release \
+    make \
+    openssh-client \
+    pristine-tar \
+    rpm \
+    rsync \
+    ruby \
+    ruby-dev \
+    rubygems \
+    wget \
+    openssh-server \
+    libcurl4-openssl-dev \
+    libpam0g-dev \
+    libssl-dev \
+    python3 \
+    python3-dev \
+    python3-pip
+ 
+RUN pip3 install "python-socketio[client]"
+
+RUN echo "gem: --no-ri --no-rdoc" >/etc/gemrc
+RUN gem install fpm
+RUN gem install fpm-cookery
+RUN gem install buildtasks
+RUN gem install bundler
+
+COPY . /usr/src
+
+USER root
diff --git a/ubuntu/20.04/Jenkinsfile b/ubuntu/20.04/Jenkinsfile
new file mode 100644
index 0000000..def3a5b
--- /dev/null
+++ b/ubuntu/20.04/Jenkinsfile
@@ -0,0 +1,42 @@
+pipeline {
+    agent {
+        dockerfile {
+            args '-u root'
+        }
+    }
+    stages {
+        stage('make') {
+            steps {
+                sh 'cd /usr/src/SSH/PAM ; make'
+            }
+        }
+        stage('make install') {
+            steps {
+                sh 'cd /usr/src/SSH/PAM ; make install DESTDIR=/usr/src/SSH/PAM'
+            }
+        }
+        stage('Build DEB for Ubuntu 20.04') {
+            when {
+                branch "ubuntu2004"
+            }
+            steps {
+                sh "fpm \
+                    -C /usr/src/SSH/PAM \
+                    -s dir -t deb \
+                    -m 'KRI <kri@astec.net>' \
+                    --url https://rublon.com/ \
+                    -n rublon-ssh -v 1.3 \
+                    --iteration ${currentBuild.number}+focal \
+                    --depends openssh-server \
+                    --depends python3-pip \
+                    --config-files /etc/rublon.config \
+                    --description \"Rublon SSH\" \
+                    /etc/rublon.config=/etc/rublon.config \
+                    /usr/share/rublon-ssh/confirmMethod.py=/usr/share/rublon-ssh/confirmMethod.py \
+                    /usr/share/rublon-ssh/confirmUser.py=/usr/share/rublon-ssh/confirmUser.py \
+                    /lib/x86_64-linux-gnu/security/pam_rublon.so=/lib/x86_64-linux-gnu/security/pam_rublon.so"
+                archiveArtifacts artifacts: '*.deb', fingerprint: true
+            }
+        }
+    }
+}
diff --git a/ubuntu/20.04/Vagrantfile b/ubuntu/20.04/Vagrantfile
new file mode 100644
index 0000000..402f45a
--- /dev/null
+++ b/ubuntu/20.04/Vagrantfile
@@ -0,0 +1,98 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  config.vm.provider "virtualbox"
+
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
+
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://vagrantcloud.com/search.
+  config.vm.box = "ubuntu/focal64"
+  config.vm.boot_timeout = 3000
+
+  # Disable automatic box update checking. If you disable this, then
+  # boxes will only be checked for updates when the user runs
+  # `vagrant box outdated`. This is not recommended.
+  # config.vm.box_check_update = false
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine. In the example below,
+  # accessing "localhost:8080" will access port 80 on the guest machine.
+  # NOTE: This will enable public access to the opened port
+  # config.vm.network "forwarded_port", guest: 80, host: 8080
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine and only allow access
+  # via 127.0.0.1 to disable public access
+  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
+
+  # Create a private network, which allows host-only access to the machine
+  # using a specific IP.
+  # config.vm.network "private_network", ip: "192.168.33.10"
+
+  # Create a public network, which generally matched to bridged network.
+  # Bridged networks make the machine appear as another physical device on
+  # your network.
+  config.vm.network "public_network"
+
+  # Share an additional folder to the guest VM. The first argument is
+  # the path on the host to the actual folder. The second argument is
+  # the path on the guest to mount the folder. And the optional third
+  # argument is a set of non-required options.
+  config.vm.synced_folder ".", "/home/vagrant/Rublon-Linux"
+
+  # Provider-specific configuration so you can fine-tune various
+  # backing providers for Vagrant. These expose provider-specific options.
+  # Example for VirtualBox:
+  #
+  config.vm.provider "virtualbox" do |vb|
+    # Display the VirtualBox GUI when booting the machine
+    # vb.gui = true
+    #
+    # Customize the amount of memory on the VM:
+    #   vb.memory = "1024"
+  end
+  #
+  # View the documentation for the provider you are using for more
+  # information on available options.
+
+  # Enable provisioning with a shell script. Additional provisioners such as
+  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
+  # documentation for more information about their specific syntax and use.
+  config.vm.provision "shell", inline: <<-SHELL
+    DEBIAN_FRONTEND=noninteractive apt-get update
+    DEBIAN_FRONTEND=noninteractive apt-get install -y gcc
+    DEBIAN_FRONTEND=noninteractive apt-get install -y openssh-server
+    DEBIAN_FRONTEND=noninteractive apt-get install -y libcurl4-openssl-dev
+    DEBIAN_FRONTEND=noninteractive apt-get install -y libpam0g-dev
+    DEBIAN_FRONTEND=noninteractive apt-get install -y libssl-dev
+    DEBIAN_FRONTEND=noninteractive apt-get install -y python2.7-dev
+    DEBIAN_FRONTEND=noninteractive apt-get install -y python3-dev
+    DEBIAN_FRONTEND=noninteractive apt-get install -y python3-pip
+    pip3 install "python-socketio[client]"
+
+    sed -i 's/UsePAM .*/UsePAM yes/' /etc/ssh/sshd_config
+    sed -i 's/ChallengeResponseAuthentication .*/ChallengeResponseAuthentication yes/' /etc/ssh/sshd_config
+
+    cd /home/vagrant/Rublon-Linux/SSH/PAM/
+    make
+    make install
+
+    useradd -s /bin/bash -m kri
+    echo "kri:kri"|chpasswd
+
+    grep -q -e 'auth required pam_rublon.so' /etc/pam.d/sshd || sed -i '\$aauth required pam_rublon.so' /etc/pam.d/sshd
+    grep -q -e 'account required pam_rublon.so' /etc/pam.d/sshd || sed -i '\$aaccount required pam_rublon.so' /etc/pam.d/sshd
+
+    service sshd restart
+
+    #vagrant ssh -p -- -l psz
+  SHELL
+end