Posts - Page 243 (page 243)
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8 min readConfiguring HTTPS for a Dockerized application involves a few steps:Generate or obtain an SSL certificate: You need an SSL certificate to enable HTTPS. You can either generate a self-signed certificate or obtain one from a trusted certificate authority (CA). Prepare the certificate for use with Docker: Convert the certificate and private key into the required format, such as PEM.
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3 min readTo search for a string in a file using Bash, you can make use of various commands and techniques. One common approach is to use the grep command, which stands for "global regular expression print."You can use the following command syntax to search for a string in a file: grep "string" file_path Here, "string" represents the text you want to search for, and file_path is the path to the file in which you want to search.
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4 min readThe 'lateinit' keyword in Kotlin is used to declare a non-null property that will be initialized later. It can only be used with mutable properties of non-primitive data types, and cannot be used with properties of nullable types or with properties that have default values.
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10 min readTo renew an expiring SSL certificate, you need to follow a few steps:Check the expiration date: Identify when your SSL certificate is set to expire. This information is usually available from your SSL certificate provider or in your certificate management system. Generate a certificate signing request (CSR): Using your server's software or your hosting provider's control panel, generate a CSR for the SSL certificate renewal.
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5 min readUsing pipes in Bash allows you to combine commands, where the output of one command becomes the input of the next command in a sequence. This is achieved by using the "|" symbol.To use pipes, simply write the first command, followed by the pipe symbol "|", and then write the next command. The output of the first command will automatically become the input of the second command, and so on.
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8 min readDependency injection is a technique used to manage dependencies between classes in an application. It allows for loose coupling between classes and promotes code reusability, testability, and maintainability. In Kotlin, dependency injection can be implemented using various frameworks and libraries, or by manually writing the code.To implement dependency injection in Kotlin, you can follow these steps:Identify dependencies: Identify the dependencies that need to be injected into classes.
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8 min readTo enable HTTPS on a local development server, you can follow the steps below:Generate SSL/TLS Certificates: You'll need SSL/TLS certificates to enable HTTPS. You can either create self-signed certificates or use tools like OpenSSL to generate them. Install the Certificates: Once you have the generated SSL/TLS certificates, you need to install them on your development server.
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4 min readIn Bash scripting, you can perform arithmetic operations using various built-in operators and commands. Here are the basic arithmetic operations you can perform:Addition: Use the + operator to add numbers together. For example: sum=$((4 + 3)) Subtraction: Use the - operator to subtract one number from another. For example: difference=$((9 - 5)) Multiplication: Use the * operator to multiply numbers. For example: product=$((2 * 6)) Division: Use the / operator to divide one number by another.
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6 min readWhen troubleshooting SSL/TLS handshake errors, the following steps can be taken to identify and resolve the issue:Check SSL/TLS Certificate: Ensure that the SSL/TLS certificate is valid and properly installed on the server. Validate the certificate expiration date, chain of trust, and any warnings or errors associated with it. Verify Supported SSL/TLS Version: Confirm that the client and server support compatible SSL/TLS versions. Outdated or mismatched versions can cause handshake failures.
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6 min readIn Bash scripting, command-line arguments allow you to provide input and parameters to a script during execution. Here's an overview of how to handle command-line arguments in a Bash script:To access the command-line arguments, you can refer to them using predefined variables: $0, $1, $2, ..., $n, where $0 represents the script name, and $1 to $n represent the actual arguments. You can store the command-line arguments in variables for easier usage within the script.
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10 min readPerforming network operations using Kotlin involves leveraging libraries and language features to interact with networks and send/receive data. Here are the key steps and concepts involved:Importing necessary libraries: Start by importing the required libraries for network operations. Popular libraries for network communication in Kotlin include OkHttp, Retrofit, and Fuel. Creating a network client: Initialize a network client instance using the chosen library.
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5 min readTo check if a website is using HTTPS, you can follow these steps:Look at the website URL: Check the URL of the website in the address bar of your browser. If the website is using HTTPS, the URL will start with "https://" instead of "http://". The 's' in HTTPS stands for secure. Look for the padlock icon: Most modern browsers display a padlock icon in the address bar to indicate that the website is using a secure connection.