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Remarks from a Cloud Architect daily encounters

Entries in this blog

Microsoft Exchange 2016 | Από το 0 στο 1ο email

Αυτό δεν είναι ένα από τα συνηθισμένα μου posts. Απλά θέλω να μοιραστώ την εμπειρία της καθαρής εγκατάστασης του Exchange 2016 για όποιον θέλει να δημιουργήσει ένα lab και να εξασκηθεί. Για το δικό μου lab χρησιμοποίησα έναν Windows Server 16 TP3, ο οποίος είναι Domain Controller & DNS στο Domain mylab.lab Η εγκατάσταση του […] The post Microsoft Exchange 2016 | Από το 0 στο 1ο email appeared first on Proxima's IT Corner. Source

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Test Exchange mail submission using SMTP commands

A simple way to test if the Exchange server is processing emails is by using telnet & SMTP commands. First open a telnet client. The simplest is to open a Command Prompt and type: “telnet yourexchangeserver 25” and press Enter The Command Prompt will start the telnet client and try to connect to the mail […] The post Test Exchange mail submission using SMTP commands appeared first on Proxima's IT Corner. Source

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SQL Failover Cluster with AlwaysOn Availability Groups

SQL Failover Cluster with AlwaysOn Availability Groups Η ιδέα είναι να έχουμε ένα SQL Flailover Cluster στο Primary Site και στο υπάρχον Cluster να προσθέσουμε ένα AlwaysOn Availability group για το DR. Λόγο του μεγέθους της υλοποίησης θα γίνει τρία Posts. Ένα το Failover Cluster, ένα η εγκατάσταση της SQL σε Failover Clster και ένα η υλοποίηση του […] The post SQL Failover Cluster with AlwaysOn Availability Groups appeared first on Proxima's IT Corner. Source

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Add AlwaysOn AG to SQL Failover Cluster Instance (Page 3)

SQL Failover Cluster with AlwaysOn Availability Groups   Πάμε τώρα για το τελευταίο κομμάτι του lab, να προσθέσουμε AlwaysOn Availability Group στο υπάρχον SQL WSFC. Windows Server 2012 R2 Failover Cluster with FreeNAS 9.3 (Page 1, Page 2) Microsoft SQL 2012 on Failover Cluster (Page 1, Page 2, Page 3) Add AlwaysOn AG to SQL Failover Cluster Instance (Page 1, Page 2, Page 3) Add AlwaysOn AG to SQL Failover Cluster Instance (Page 3)   Στην καρτέλα validation αγνοούμε το warning για τ

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Puppet On Azure | Βήμα 1, Προετοιμασία Azure

Puppet On Azure Επειδή η τεχνολογία είναι ένα ποτάμι που ποτέ δεν σταματάει… και το μικρόβιο μας δεν έχει θεραπεία, ο Παντελής Αποστολίδης (IT Pro) από την Office Line και ο Μάνος Πέπης (DEV) από την Innovative Ideas με αρκετά χρόνια εμπειρίας στην αγορά και αρκετές πιστοποιήσεις σε τεχνολογίες Microsoft, Cisco, Azure, κλπ. σκεφτήκαμε να […] The post Puppet On Azure | Βήμα 1, Προετοιμασία Azure appeared first on Proxima's IT Corner. Source

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Azure App Service, get data from on-premises databases securely

Azure App Service, get data from on-premises databases securely There are many scenarios where we want to have the Web Application on the Cloud but on the other hand, due to various limitations, the database stays on-premises. Azure has a service, called Azure Hybrid Connections, that allows the Web App to connect to on-premises databases, using internal IP address or the database server host name, without a complex VPN setup. The Connection diagram I have tested the connection with Microsoft S

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Get early access to large disks support of Azure Backup & more

Get early access to large disks support of Azure Backup & more Azure Backup’s 1TB limitation at last is over! Now you can backup VMs with disk sizes up to 4TB(4095GB), both managed and unmanaged. Also has improvements on backup and recovery performance that you can find here. Starting today login to the Portal, go to your Recovery Services vault and you will a notification saying “Support for >1TB disk VMs and improvements to backup and restore speed ->” Click the notification and the

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Azure Blob Storage… Recycle Bin!!!!!!!

Azure Blob Storage… Recycle Bin!!!!!!! Remember all that red alerts when comes to deleting blobs? Ah, forget them! Microsoft Azure brought the Windows Recycle Bin to Azure and named it Soft delete. The soft delete feature basically is similar to the Windows recycle bin. Deleting a file from the Windows explorer, the Operating System instead of actually removing the file it moves it to the recycle bin. The file stays there and it can be undeleted at any time. The soft delete feature in Microsoft

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Free e-book: Azure Strategy and Implementation Guide

Free e-book: Azure Strategy and Implementation Guide Microsoft Azure is giving free a Strategy and Implementation guide for Azure. This e-book provides guidance, architecture and advises to implement and integrate cloud technologies. This guide is directed to system administrators, cloud architects and project managers. It has for chapters, the Governance, the Architecture, the Application development and operations and the Service management. It will help you for starting with Azure or just doi

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Puppet On Azure | Βήμα 1, Προετοιμασία Azure

Επειδή η τεχνολογία είναι ένα ποτάμι που ποτέ δεν σταματάει… και το μικρόβιό μας δεν έχει θεραπεία, ο Παντελής Αποστολίδης (IT Pro) από την Office Line και ο Μάνος Πέπης (DEV) από την Innovative Ideas με αρκετά χρόνια εμπειρίας στην αγορά και αρκετές πιστοποιήσεις σε τεχνολογίες Microsoft, Cisco, Azure, κλπ. σκεφτήκαμε να μοιραστούμε ένα οδηγό για DevOps στο Azure! Παρουσιάζοντας το Puppet, το πώς στήνετε στο Azure καθώς και μερικές από τις δυνατότητές του. Έτσι το Lab μας στο Azure έτρεχε με 10

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Puppet On Azure | Βήμα 2, Εγκατάσταση Open Source Puppet

Puppet On Azure   Εγκατάσταση Open Source Puppet   Βήμα 1 Σύνδεση στο Ubuntu   ανοίγουμε έναν SSH client, στην προκειμένη περίπτωση PuTTY και δίνουμε για Host Name το Public όνομα του Cloud Service, στην προκειμένη περίπτωση openpuppetlab.cloudapp.net, δίνουμε την πόρτα 30021 που έχουμε ορίσει για το puppetmaster και πατάμε Open Κάνουμε login με το username & password που ορίσαμε στην δημιουργία του VΜ. Για να μην βάζουμε “sudo” σε κάθε εντολή, τρέχουμε “sudo su –“ και ενεργοποιούμε τ

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Azure Update Management

Azure Update Management Have you checked the update management system for your Azure and On-Premises server that supports both Windows and Linux operating systems? And it is completely free! Please find the full list of supported operating systems and prerequisites here: https://docs.microsoft.com/en-us/azure/operations-management-suite/oms-solution-update-management#prerequisites. Lets get started. The easiest way is to start from an Azure VM. Go to the VMs blade and find “Update management”.

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Ασφάλισε την Azure SQL Database μέσα σε ένα VNET χρησιμοποιώντας service endpoints

Για πολλούς, ένα πρόβλημα στο να χρησιμοποιήσουν την Azure SQL, είναι η δημόσια πρόσβαση. Μετά τα τελευταία Azure updates μπορούμε να χρησιμοποιήσουμε τα service endpoints ώστε να ασφαλίσουμε την Azure SQL μέσα σε ένα VNET. Ας ξεκινήσουμε λοιπόν να βάλουμε την Azure SQL μέσα σε ένα VNET. Ανοίγουμε το Azure Portal και ξεκινάμε να δημιουργήσουμε ένα VNET. Στο τέλος της σελίδας δημιουργίας έχει προστεθεί μια νέα επιλογή που λέγετε service endpoints. Το ενεργοποιούμε και επιλέγουμε το Microsoft.Sql.

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Auto-Shutdown Hyper-V free with UPS

<h1>Auto-Shutdown Hyper-V free with USB UPS</h1> <p>Recently i installed a Hyper-V 2012 R2 server (the free version) but my UPS doesn’t support Windows Core. No problem, we have PowerShell!! after some search on various sites – blogs – etc i end up creating the following script. It checks the battery status every 3 minutes, using WMI and when the battery drops below 50% is sends the shutdown signal. As long as you set the VMs to save on shutdown you are OK!</p> <p>I

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Auto Start/Stop an Azure VM (ARM)

Auto Start/Stop an Azure VM (ARM) For Azure VMs that are not needed to be running 24/7, we can use Azure Automation to schedule automatic Stop (Deallocate) and Start. First ensure to reserve resources if needed, such as the Private and the Public IP. Now lets see how we will Auto Start/Stop an Azure VM (ARM). First create an Automation Account, go to the Azure Portal, expand more services and search for automation. Then click the “Automation Accounts” At the Automation Accounts press “Add” At

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AzureRm | Create Internal Load Balancer with two VMs

AzureRm | Create Internal Load Balancer with two VMs This post is part of a general idea, to create an end-to-end high available application infrastructure solution in Azure using internal load balancer with the new AzureRm commands and Azure PowerShell v.1.0 preview. For this solution I will use: 2x Centos 11 sp4 Web/Application Servers 2x Centos 11 sp4 MySQL Servers 1x Gateway The first part is to create an Internal Load Balancer in Azure to use it for two VMs. This setup is ideal for

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AzureRm | Create Site to Site VPN

<h1><strong>AzureRm | Create Site to Site VPN</strong></h1> <p>This post is part of a general idea, to create an end-to-end high available application infrastructure solution in Azure using internal load balancer with the new AzureRm commands and Azure PowerShell v.1.0 preview.</p> <p>We will create a Gateway, request a Public IP and establish a Site to Site VPN. At the time I am writting this post there is no option to create the VPN ising the Portal, t

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Microsoft Azure Nested Virtualization | Hyper-V VM inside Azure VM

Microsoft Azure Nested Virtualization | Hyper-V VM inside Azure VM With the new Dv3 and Ev3 VM sizes Microsoft has released the Nested Virtualization, meaning you can simply have a Hyper-V VM inside an Azure VM. In this post I am testing the Nested Virtualization functionality creating a Hyper-V VM inside an Azure VM and have Network and Internet Connectivity. Lets get started. First of all we will need a Dv3 or Ev3 VM and for best Nested Virtualization performance make use of SSD Managed Disks.

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Azure File Sync & DFS Namespace

Azure File Sync & DFS Namespace Azure File Sync is a new Azure feature, still in preview, that allows to sync a folder between your local file server and Azure Files. This way your files are accessible both locally at your file server and publicly at Azure Files using an SMB 3.0 client. Also the files can be protected online using Azure Backup. The idea of this post is to have the files of two file servers to sync to Azure Files using Azure File Sync and in addition use the DFS Namespace fea

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Custom pfSense on Azure Rm | a complete guide

Custom pfSense on Azure Rm | a complete guide A complete guide on how to create a pfSense VM on a local Hyper-V server, prepare it for Microsoft Azure, upload the disk to Azure and create a multi-NIC VM. Download the latest image from https://www.pfsense.org/download/ Open Hyper-V Manager create a Generation 1 VM. I added 4096 ram, 2 cores, use VHD, add an extra NIC (for second interface) and select the downloaded ISO. (create a fixed VHD as Azure supports only fixed VHDs for custom VMs) Star

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AzureRm | Create External Load Balancer with two VMs

After my previous post, the internal load balancer with two VMs, this is a scenario using the External Load Balancer. The configuration includes a Load Balancer with a Static Public IP at the frond end and two VMs at the back end. The load balancer has two static routes for RDP, one for each VM and one load balance rule, the TCP port 80, common for web sites and applications. It uses a probe that checks a web page on both hosts to verify if they are active.   Lets start. First we need to insta

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Classic Azure VM Details

<p>I was looking for a way to have a list with many details about VMs of Azure Classic deployment. Some of the details are VM Name, HostName, Service Name, IP address, Instance Size, Availability Set, Operating System, Disk Name (OS), SourceImageName (OS), MediaLink (OS), HostCaching (OS), Subnet, DataDisk Name, DataDisk HostCaching, DataDisk MediaLink, DataDisk Size.</p> <p>I started with PowerShell ISE and some technet search and after a lot of test I created this script:<

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Application security groups

Application Security Groups to simplify your Azure VMs network security Application Security Groups helps to manage the security of the Azure Virtual Machines by grouping them according the applications that runs on them. It is a feature that allows the application-centric use of Network Security Groups. An example is always the best way to better understand a feature. So let’s say that in a Subnet we have some Web Servers and some Database Servers. The access rules of the Subnet’s Network Secu

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Validate Azure Resource Move with Postman

Validate Azure Resource Move with Postman At this post we will see how easily we can move azure resources to new resource groups or subscriptions and how we can validate if the azure resources are eligible to move without initiate the move. Move Azure Resources to new resource groups or subscriptions Azure Resource Manager allow you to easily move resources to new resource groups or subscriptions. It is a pretty simple process. From the Azure Portal, open a Resource Group, and from the top optio

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azure free smtp relay using sendgrid

Azure offers free smtp relay using the SendGrid application. SendGrid is a cloud service that provides email delivery and marketing campaigns. The specific offer is for up to 25.000 emails per month. Also this offers provides full reporting and analytics and 24/7 support. At this post we will see how to create a SendGrid free account that can be used for many purposes, like: Send emails through an application using the SendGrid API Send email campaigns, newsletters, etc using the SendGrid SMT

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