Posts

Enabling Let’s Encrypt in MobileTogether


MobileTogether Server, the backend hub for apps built in MobileTogether Designer, now supports the ability obtain SSL certificates using Let’s Encrypt. Let’s Encrypt is a free service aimed at encrypting all HTTP traffic on the web. This feature is supported in MobileTogether Server starting with version 5.1 and adds to the ability to upload your own certificate.


The video tutorial above walks you through configuring MobileTogether Server to utilize SSL encryption when communicating with MobileTogether clients. It covers the use of both Let’s Encrypt and certificates generated using a trusted certificate authority.

SSL certificates generated using a trusted certificate authority can be uploaded directly to MobileTogether Server. This configuration can provide several advantages to system administrators. These types of certificates are typically good for a much longer period of time, requiring fewer maintenance windows. In addition, you can keep your MobileTogether Server completely isolated from the outside world as this method does not require any external ports to be opened. The process to obtain these certificates can be much more complex and expensive. Verification typically requires you to provide information to the issuer and wait for a response which can delay your implementation.

Let’s Encrypt integration was added in MobileTogether 5.1. Let’s Encrypt is a certificate authority whose goal is to provide encryption to the entire Internet. Certificates generated are free of charge. Unlike other methods of generation, though, Let’s Encrypt certificates are only good for 90 days. MobileTogether Server is capable of automatically renewing these certificates every 60 days, but requires a scheduled server reboot each time this action occurs. Lastly, Let’s Encrypt requires your server to be accessible from the outside world; they will need to communicate with MobileTogether Server on port 80 to verify your server’s identity.

The ability to encrypt communication between client and server is becoming ubiquitous. MobileTogether allows you to easily secure all communication to your mobile clients using SSL encryption and new support for Let’s Encrypt greatly reduces the set up complexity.

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Configuring MobileTogether Server to Work With Your Network


Configuring MobileTogether Server to work properly on your network will require some changes to be made. MobileTogether Server is designed to sit within your network’s DMZ and enabling it to accept connections from clients both inside and outside your network will require your network administrator to open a collection of ports.

This video tutorial will walk you through the ports required to make MobileTogether function. It provides you with a baseline setup that will work inside most corporate networks. Please note, however, that every network is different and some configuration changes may be required. To support this, every port MobileTogether Server uses can be customized; all the ports listed in this tutorial are default and can be changed.

The image below outlines the network ports required by Altova LicenseServer to properly validate files.

Clients will need to be able to connect both internally and externally. We recommend using the default MobileTogether ports, and remapping them to 80 and 443 at each of your firewalls. This is discussed in greater detail in the video.


Finally, a set of ports will need to be opened for administrator purposes. These ports should be limited to your internal network only.

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Configuring MobileTogether Server & LicenseServer


Part of the Altova MobileTogether framework, MobileTogetherServer is the back-end hub that powers your native apps for Android, iOS, Windows, and the web.  The server provides high performance data processing, comprehensive caching, instant deployment of apps, and more.

Every developer looking to install MobileTogether Server will also need to obtain a copy of Altova LicenseServer. LicenseServer is a free product that simplifies license management for all Altova products, including MobileTogether Server. Licenses are managed via an easy-to-use web-based administrator console.

The video tutorial below will walk developers through the steps needed to install both MobileTogether Server and LicenseServer. It covers obtaining and running the installer followed by a basic configuration that will have you deploying enterprise apps in under an hour. This video is the first part in a short series that will eventually discuss SSL Certificate deployment, network configuration, and deploying apps to each of the app stores.

If you’re new to MobileTogether and would like to learn more about developing mobile apps, please head over to the MobileTogether Demos page where we have a collection of video tutorials.

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Implementing Basic Filtering in Your App


There are numerous ways to implement searching and filtering within mobile apps.  MobileTogether Designer allows developers to perform filtering on either your mobile app or on the server via a SQL query.  Knowledge of each of these methods, along with the use cases for them, is an essential tool every mobile developer should possess.

This video tutorial continues to build out the books database project that has been constructed in previous tutorials.  It will cover the steps needed to implement basic filtering in your mobile app.  Additionally, it also introduces developers to the usage of user defined XQuery functions which provide a method to centralize application logic.

 

 

If you’re new to MobileTogether Designer, please take a moment to view the MobileTogether Demos page where we have provided links to additional video tutorials and demo apps.

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Creating and Deleting Database Records with MobileTogether


Creating, deleting, and validating records is an essential bit of functionality in all data driven apps. By using MobileTogether Designer, developers can produce cross platform apps capable of handling these functions and more in record time.

The video tutorial below expands upon the concepts introduced in previous videos. It covers the steps required to add functionality for creation, deletion, and data validation to your mobile app.

If you’re new to MobileTogether Designer, please take a moment to view the MobileTogether Demos page where we have provided links to additional video tutorials and demo apps.

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Retrieve and Modify Images with MobileTogether


Inevitably mobile developers will need to build an app that needs to interact with their users’ camera and gallery.  MobileTogether Designer makes this task easy by providing a set of controls that allow developers to add this functionality to apps in record time.  The video tutorial below is a continuation of our series aimed at working with databases in MobileTogether; it covers steps needed to solicit images and, if necessary, resize those images to fit a user’s device.

 

 

 

If you’re new to MobileTogether Designer, please take a moment to view the MobileTogether Demos page where we have provided links to additional video tutorials and demo apps.

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Querying and Editing Database Records with MobileTogether


The heart of any app is its ability to view and modify bits of data. By using MobileTogether Designer, developers can build apps which show a broad picture of all data and enable users to easily drill down and edit individual records. This video tutorial will guide you through enhancing the Books sample app by adding the ability to view and edit records.

If this is your first time using MobileTogether, please take the time to view both our getting started video along with part one of our series on working with databases in MobileTogether Designer. Each of these videos will help you become familiar with the interface, phraseology, and provide you with techniques to efficiently build mobile apps.

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