Tag Archives: Ubuntu 16

Install Virtualbox 5.2/6.1 on Ubuntu 16 headless mode

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Install Prerequisites

Before installing VirtualBox 5.2/6.1, please install these packages below if your systems don’t already have them installed….

sudo apt update
sudo apt-get install gcc make linux-headers-$(uname -r) dkms

Add VirtualBox Repository

If you want to always get the latest versions of VirtualBox when they become available, you’ll want to add its software repository to Ubuntu…

Run the commands below to add the repository key to your system…

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

After adding the repository key above, run the commands below to add VirtualBox package repository.

sudo add-apt-repository "deb [arch=amd64] http://download.virtualbox.org/virtualbox/debian $(lsb_release -cs) contrib"

After that, run the commands below to update Ubuntu repositories.

Installing VirtualBox

At this point, the Ubuntu system should be ready to install the latest version of VirtualBox. First you may want to remove the previous 6.0 version if you’re still running it… to do that, run the commands below:

sudo apt remove virtualbox virtualbox-6.1

Finally, run the commands below to install the latest 6.1 (major) version of the software. Continue reading “Install Virtualbox 5.2/6.1 on Ubuntu 16 headless mode” »

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Install OnlyOffice Document Server on Ubuntu 16

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Step 1: Install ONLYOFFICE Document Server

Please note that OnlyOffice document server requires at least 2GB of RAM. An additional 2GB of swap space is recommended. OnlyOffice document server depends on PostgreSQL, Node.js, Redis Server, RabbitMQ server and Nginx. The following steps are tested on a Ubuntu 16.04 server but should also be applicable to other Debian-based Linux distributions.

Install PostgreSQL from Ubuntu repository

sudo apt install postgresql

Then create the onlyoffice database.

sudo -u postgres psql -c "CREATE DATABASE onlyoffice;"

Create the onlyoffice user.

sudo -u postgres psql -c "CREATE USER onlyoffice WITH password 'onlyoffice';"

Grant permission. Continue reading “Install OnlyOffice Document Server on Ubuntu 16” »

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Install portainer on ubuntu 16 docker

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Step 1 – Install Docker on Ubuntu 16.04 LTS
Before installing docker packages, please update the repository on your system and upgrade packages.

sudo apt update
sudo apt upgrade

Now install docker using the apt command below.

sudo apt install docker.io -y

After the installation is complete, start docker service and enable it to launch everytime at system boot.

systemctl start docker
systemctl enable docker

Docker installed on ubuntu 16.04 server, check it using the command below.

docker version

And you will get the docker version 1.x installed on the system.

Step 2 – Install and Configure Portainer
Portainer can be installed as a docker container and standalone without docker container. Continue reading “Install portainer on ubuntu 16 docker” »

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Installing Jitsi and Jibri on Same Machine

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This post is heavily inspired from this community post by https://community.jitsi.org/u/Woodworker_Life. However, the original installation document is based on typical split Jitsi on one VM and Jibri on seperate VM. 

A little reworked version is deployed and tested for several client based with no performance issue- this post covers a single VM with Jitsi Videobridge and Jibri Reocording system.

Prerequisites:

  • Works only on Ubuntu 16 Distribution
  • Only following DNS entries are needed to be available:
    • meet.ensii.net -> 123.45.67.89
    • recording.ensii.net-> 123.45.67.89
    • recorder.ensii.net-> 123.45.67.89
  • update /etc/hosts file as following:
    • 127.0.0.1    meet.ensii.net
      123.45.67.89    recording.ensii.net
      123.45.67.89    recorder.ensii.net

Part-1: Setup Jitsi Meet on the server

You will need to login to the server you created in step 1. For this, on my Windows laptop, I use PuTTy. Login with initial password and change it to your own.

Update server:

apt update && apt upgrade -y

Continue reading “Installing Jitsi and Jibri on Same Machine” »

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Install Pritunl on Ubuntu 16

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Update your bare-bone and freshly installed Ubuntu 16 system.

sudo apt-get update && sudo apt-get upgrade

Add Pritunl’s APT repository and update the package lists:

echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiverse" > /etc/apt/sources.list.d/mongodb-org-3.0.list
echo "deb http://repo.pritunl.com/stable/apt trusty main" > /etc/apt/sources.list.d/pritunl.list

Add repo keys for apt to validate against

apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv 7F0CEB10
apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv CF8E292A

Update the package cache

sudo apt-get update

If you have a firewall running on the Linode, add exceptions for Pritunl’s Web UI and server:

sudo iptables -A INPUT -p udp -m udp --sport 9700 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p tcp -m tcp --sport 9700 --dport 1025:65355 -j ACCEPT
sudo iptables -A INPUT -p `your protocol here` -m `your protocol here` --sport `your_port_here` --dport 1025:65355 -j ACCEPT

NoteIf you’ve configured the firewall according to the Securing Your Server guide, be sure to add these port ranges to the /etc/iptables.firewall.rules file.

Install Pritunl and its required dependencies:

sudo apt-get install python-software-properties pritunl mongodb-org

Start the Pritunl service:

sudo service pritunl start

Open a web browser on your computer, and navigate to https://123.45.67.89:9700, replacing 123.45.67.89 with your VM IP address. You will see a screen similar to this:

Continue reading “Install Pritunl on Ubuntu 16” »

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Install Discourse Forum with Nginx on Ubuntu 16.04

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Step 1 – Install Docker on Ubuntu 16.04

The Discourse software is written in Ruby and Javascript, using PostgreSQL as the main database, and Redis as a cache and for transient data. We will install Discourse under the Docker container.
 
The installation process will be carried out on Ubuntu 16.04. So to begin with, install Docker using the command below.

wget -qO- https://get.docker.com/ | sh

 

After the installation is complete, check the docker service and make sure it’s already running on the system. Continue reading “Install Discourse Forum with Nginx on Ubuntu 16.04” »

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Install BigBlueButton- video conferencing

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Installation BigBlueButton with a single command on a Ubuntu 16 OS:

If you want to set up BigBlueButton 2.2 with a TLS/SSL certificate and GreenLight, you can do this all with a single command:

wget -qO- https://ubuntu.bigbluebutton.org/bbb-install.sh | bash -s -- -v xenial-22 -s bbb.example.com -e info@example.com -g

Troubleshoot after installation:

Greenlight not running

If on first install Greenlight gives you a 500 error when accessing it, you can restart Greenlight.

Tomcat7 not running

If on the initial install you see

# Not running: tomcat7 or grails LibreOffice

Continue reading “Install BigBlueButton- video conferencing” »

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How to Install and Configure GitLab on Ubuntu 16.04

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GitLab is an open source GIT repository manager based on Rails and developed by GitLab Inc. It is a web-based GIT repository manager that allows your team to work on code, track bugs and feature requests and to test and deploy applications. GitLab provides features like a wiki, issue tracking, code reviews, activity feeds and merge management. It is capable of hosting multiple projects.

GitLab is available in four editions:

  • Gitlab CE (Community Edition) – self-hosted, free and support from the Community forum.
  • Gitlab EE (Enterprise Edition) – self-hosted, paid app, comes with additional features.
  • GitLab.com – SaaS, free.
  • GitLab.io – Private GitLab instance managed by GitLab Inc.

In this tutorial, I will show you step-by-step how to install GitLab CE (Community Edition) on your own Ubuntu 16.04 Xenial Xerus server. In this tutorial, I will be using the ‘omnibus’ package provided by GitLab for easy installation.

What we will do:

  • Install Packages
  • Install GitLab
  • Configure GitLab URL
  • Generate SSL Let’s encrypt and DHPARAM Certificate
  • Enable Nginx HTTPS for GitLab
  • Configure UFW Firewall
  • Perform the GitLab Installation
  • Testing

Prerequisites

  • Ubuntu 16.04 Server – 64bit
  • Min RAM 2GB
  • Root Privileges

Step 1 – Install required Ubuntu Packages
The first step is to install the packages needed for the GitLab installation. Please log in to the server as root user and upddate the Ubuntu repository.

ssh root@GitLabServer
apt-get update

Now install the packages including curl for downloading the GitLab repository, ca-certificates, and postfix for the SMTP configuration. Install all packages with the apt command below.

sudo apt install curl openssh-server ca-certificates postfix

During postfix installation, you will be prompted about the configuration, select ‘Internet Site’. and then enter the server domain name that shall be used for sending an email. Continue reading “How to Install and Configure GitLab on Ubuntu 16.04” »

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Install Laravel 5 Framework on Ubuntu 18.04 & 16.04

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Below is the system requirements for the installation of latest Laravel application on your system.

PHP >= 7.2
OpenSSL PHP Extension
PDO PHP Extension
Mbstring PHP Extension
Tokenizer PHP Extension
XML PHP Extension
Ctype PHP Extension
JSON PHP Extension
BCMath PHP Extension

Step 1 – Install LAMP

To start with Laravel, we first need to set up a running LAMP server. If you have already running LAMP stack skip this step else use followings commands to set up the lamp on Ubuntu system.

sudo apt-get install python-software-properties
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install -y php7.2 php7.2-mcrypt php7.2-gd php7.2-mbstring php7.2-xml

Install PHP Mcrypt Extension & Install Apache2

sudo apt-get install apache2 libapache2-mod-php7.2

Install MySQL

sudo apt-get install mysql-server php7.2-mysql

Step 2 – Install Composer

The composer is required for installing Laravel dependencies. So use below commands to download and use as a command in our Continue reading “Install Laravel 5 Framework on Ubuntu 18.04 & 16.04” »

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SOLVED Zimbra 8.6 HTTP ERROR 404 Problem accessing /public/error.jsp. Reason: /public/error.jsp

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Do a quick search under the usual jetty folders:

find /opt/zimbra/jetty/ -type f -name *jsp -mtime -30

If you find files like:

/opt/zimbra/jetty/webapps/zimbra/js/zimbra/csfe/XZimbra.jsp
/opt/zimbra/jetty/webapps/zimbra/public/Ajax.jsp

you’re actually hacked.

Unlike the previous “zmcat” and “dblaunchs” that actually exploit the vuln and load some sh*t this looks like a bad childish attack. It seems that they delete some files under jetty dir, don’t know why. 
The attack vector is the same, but, there are no strange processes, there is no persistence. Continue reading “SOLVED Zimbra 8.6 HTTP ERROR 404 Problem accessing /public/error.jsp. Reason: /public/error.jsp” »

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