How to Install and Configure GitLab on Ubuntu 16.04

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

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

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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