If you are running a mail server based on Postfix, than chances are good that at least once someone has tried to brute force a login to your server. Recently, we were involved in a complete server rebuild for a client moving from Ubuntu to Debian. Part of this build required locking down Postfix to… Read More
Over the past few months while testing some new servers running Ubuntu 16.04 LTS, we noticed that the Dynamic MOTD system seems to be outdated or completely broken when logging in via ssh. While this is a minor annoyance, it needed to be fixed. Initially we referenced our previous article Ubuntu 14.04 Outdated MOTD as… Read More
As was the case in our previous article Allow root SSH on Ubuntu 14.04, after installing a fresh new copy of Ubuntu 16.04 LTS, we found that once again (for better security) root ssh access was set to without-password by default . What that means to you is that if you are trying to ssh… Read More
Are you running a Zentyal Server on your network? Do you have a need for a MySQL Server? You are in luck. If you are using Zentyal version 3.2 or newer, then you may not have realized that you already have a working MySQL Server installation. For the purpose of this article, we will be… Read More
If you are using Hyper-V and running a Zentyal 4 guest, you may not be aware that Microsoft provides Linux Integration Services (LIS), which are basically Microsoft’s version of VMware Tools. In this article we will detail how to enable LIS on our Zentyal 4.2 virtual machine. The first step is to edit the “modules”… Read More
As you may know, the next release of Pfsense Firewall, which will be version 2.3, has some big changes planned. The most notable is the brand new shiny bootstrap theme that has been proposed for many years now on the forums. Below I am linking to a new series of videos I found on YouTube… Read More
If you have ever worked as a sysadmin in a Windows environment, then almost surely you are familiar with RSAT (Remote Server Administration Tools). RSAT provides a set of tools to manage your Windows Server environment from a Windows Workstation. With that said you may be asking what this has to do with Zentyal Server…. Read More
If you have been trying to figure out how to setup PXE on Zentyal Server, you probably found that their documentation located here is lacking at best. In this how to, we are going to describe the steps required to get a PXE server up and running on our Zentyal Domain Controller using our PXE… Read More
In this how to, we are going to detail the steps needed to pull remote XML data into our web application using Curl and PHP. The information we are interested in is job listing data from Clear Company. Clear Company provides a “Complete Talent Management Software” solution to aid Human Resources departments in hiring and on-boarding… Read More
In this article we will detail the steps required to create bootable USB installation media for OPNsense Firewall using the Rufus method as described in Pfsense USB Install Guide (Rufus). OPNsense is a fork of the venerable Pfsense Firewall. OPNsense’s main difference is the fully featured and easy to use GUI built using the newest… Read More