GoorooTHINK

Thought provoking and helpful articles
from the Gooroo community.

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  1. Creating HSTS and Pre-load with Cloudflare

    Most people are familiar with HTTPS and the concept of secure websites. Securing websites become more and more common, which is a really good thing. Not only do we know that the data sent and received from the website is secure, but we also get a sense of knowing we will be alright. We expect that we get confidentiality, authenticity and integrity from modern websites. After all, we see sites every day with this:This is becoming more and more common, and according to Scott Helme almost 31% of the...
  2. Securing your Exchange Online

    If your company its using Exchange Online services and you are responsible for email security, you have many options that you can implement to improve email security. By default every new Exchange Online tenant come with a defaults protections policy such as:Every default policy can be viewed, edited but not deleted. Its so recommended that you review all of this policies.As administrator, you can create additional malware or spam policies and applies it to specific users or groups.The malware filter...
  3. Custom user roles and role-based authorization in ASP.NET core

    I've recently been trying to contribute to the developer community, in more ways than I previously have. One of the areas I decided to delve into, is spending more time on tech forums and resources like StackOverflow.  Well not for asking questions or checking for answers, but more for answering as many questions as I possibly can. The aim is to provide answers primarily to questions budding developers are asking. so Let's hope I do a lot of that as time goes on. Hey, I might...
  4. Issue converting AD user as Remote Mailbox in Exchange Hybrid environment.

    A few days ago, my friend Peter ask me about the process of convert an active directory user to remote mailbox in hybrid environment composed by Exchange Online and Exchange 2013 on premises. In some environment, your active directory has many users that not has a mailbox yet. But now, you need to create a mailbox for these users that response for both Exchange services. This process can be accomplish using enable-remotemailbox cmlet.When my friend Peter tried the conversion using the enable-remotemailbox...
  5. Visual Studio: Creating and managing digital certificates in C#

    Digital Certificates are used for secure communication between two parties. In digital certification we ensure that the peoples who are using our apps or services are securely communicating with each other and those peoples can be individual consumers or businesses.In Digital Certification we use both Hashing and Asymmetric encryption for creating digital signatures.After encrypting the hash of data we obtain a digital signature later which is used for verification of data.As there are a lot more...
  6. Manage 365 Exchange Online with Powershell

    So, you implement Office 365 after transitioning from maybe an on-prem environment. You work with the Exchange Admin Panel which has a plethora of management capabilities but you miss using PowerShell to do stuff that simply is a lot easier to do in a shell prompt. Or maybe you've not used PowerShell before and and want to see what all the fuss is about.What I aim to give you is a little insight, a cheat sheet if you like, as to some common management scenarios you may use on a day to day basis that...
  7. The Power of PowerShell.. And the Shell..

    "What is the one technology I need to learn to get a job like the one you have?" - this is a question I've received from time to time, and my answer would vary, depending on who asked. Or rather; who I perceive the questioner to be - I cannot *know* for a fact what most suits his or her particular ambitions and style.. But in the last few years my answer, more often than not, has been "PowerShell"! Simply because I see it as one of the most important and game-changing technologies to come out of...
  8. How to install pfSense onto a CheckPoint Firewall Appliance

    pfSense is an Open Source firewall platform that can also be used for site to site connectivity as well as mobile client connectivity.Having used pfSense in the past and knowing how robust and secure the platform is, I wanted to see if I could port or install pfSense onto a CheckPoint firewall appliance. I figured that the CheckPoint appliances should have more than enough power to run pfSense.I was able to test the installation of pfSense using a few older CheckPoint appliances that were decommissioned...
  9. Configure RoundCube on Debian 8 (Jessie) - Perfect Server Debian 8 (Apache, BIND, Dovecot, ISPConfig 3)

    Debian 8 (Jessie) doesn't contain RoundCube in it's repositories. Why, I don't know :) . In ISPConfig3, Perfect Server, Debian 8, you get SquirrelMail, but I don't like how it looks. With some trouble setting it up, I managed to configure RoundCube on Debian 8 and make it wokring with ISPConfig3. Used many sources to make it work and decided to create this manual that you’re reading.I presume that you have configured your server with Perfect Server Debian 8 (Apache, BIND, Dovecot, ISPConfig 3) configuraton...
  10. Initiating the Git

    How to initiate git through sshlogin using shh~~~git $ ssh [email protected] ~~~creating a folder ~~~git $ mkdir folder_name ~~~changing to that newly created folder~~~git $ cd folder_name ~~~initiating as a master branch~~~git $ git init --bare ~~~changing the windows pack~~~git $ git config pack.window 0 ~~~##step 5 : clone to local machine usingcloning the newly created folder to local~~~git $ git clone [email protected]:/home/folder_name ~~~adding the all files which are created
  11. Edit DRAFT Edit

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