Configuring an AlmaLinux 9 Postfix Email Server
Along with acting as a web server, email is one of the primary uses of an AlmaLinux 9 system, particularly in business environments. Given the importance and popularity of email, it is surprising to...
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Adding a New Disk Drive to an AlmaLinux 9 System
One of the first problems users and system administrators encounter is that systems need more disk space to store data. Fortunately, disk space is now one of the cheapest IT commodities. In this and...
View ArticleAdding a New Disk to an AlmaLinux Volume Group and Logical Volume
In the previous chapter, we looked at adding a new disk drive to an AlmaLinux 9 system, creating a partition and file system, and then mounting that file system to access the disk. An alternative to...
View ArticleAdding and Managing AlmaLinux 9 Swap Space
An essential part of maintaining the performance of an AlmaLinux 9 system involves ensuring that adequate swap space is available comparable to the memory demands placed on the system. Therefore, this...
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AlmaLinux 9 System and Process Monitoring
An essential part of running and administering an AlmaLinux 9 system involves monitoring the overall system health regarding memory, swap, storage, and processor usage. This includes knowing how to...
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Android Studio Version Catalogs
A newly created Android Studio project will consist of approximately 80 files automatically generated by Android Studio. When you click on the Run button, Android Studio uses a build system called...
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An Android SQLite Database Tutorial
The chapter entitled SQLite Databases in Android Studio covered the basic principles of integrating relational database storage into Android applications using the SQLite database management system....
View ArticleUnderstanding Android Content Providers
The previous chapter worked on creating an example application designed to store data using a SQLite database. When implemented this way, the data is private to the application and, as such,...
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An Android Content Provider Tutorial
As outlined in the previous chapter, content providers provide a mechanism through which the data stored by one Android application can be made accessible to other applications. Having provided a...
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An Android Content Provider Client Tutorial
In this final chapter devoted to Content Providers, we will build an app that accesses the data contained in our SQLDemo content provider and displays the list of customer contacts. Creating the...
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