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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 Outdated or mismatched versions can cause handshake failures.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.
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7 min readIn Bash scripting, functions are used to group a set of commands together and allow them to be reused throughout the script.
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7 min readWorking with Android extensions in Kotlin allows you to leverage the power of Kotlin's extension functions to easily enhance the functionality of Android classes. Here's how you can work with Android extensions in Kotlin.To create an Android extension, follow these steps:Create a Kotlin file: Start by creating a new Kotlin file in your Android project. Right-click on the package or directory where you want to create the file and select "New" > "Kotlin File/Class.
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6 min readTo force HTTPS redirection for a website, you need to make changes to your web server configuration. The steps may vary depending on the server you are using, but here is a general outline:Install an SSL certificate: Obtain an SSL certificate from a trusted certificate authority (CA) and install it on your server. This allows your website to use HTTPS. Update server configuration: Open your server configuration file (e.g., Apache's httpd.conf or Nginx's nginx.
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6 min readCommand substitution is a feature in Bash that allows you to use the output of a command as an argument or operand in another command. It is denoted by the use of backticks (`) or the dollar sign and parentheses ($()).Using backticks, you can substitute the output of a command directly into another command. For example, if you want to display the number of files in a directory, you can use the ls command wrapped in backticks within the echo command: echo "Number of files: $(ls | wc -l)".
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6 min readIn Kotlin, the run extension function is a useful tool for executing a block of code on an object. It allows you to access the object's properties and methods within the block without needing to repeatedly reference the object itself.You can use the run function in two different ways: as an extension function or in the form of a standard function.Using it as an extension function: val result = someObject.
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12 min readConfiguring a web server for HTTPS involves a few key steps:Obtain an SSL/TLS certificate: The first step is to acquire an SSL/TLS certificate from a trusted certificate authority (CA). This certificate will verify the authenticity of your website to browsers and encrypt the communication between the server and user. Install the certificate: After obtaining the certificate, install it on your web server.
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6 min readIn Bash, you can check if a file or directory exists by using the test command or its alternative syntax [ ]. Here are the ways to perform the check:Using the test command: if test -f path/to/file ; then echo "File exists" fi This checks if the specified file exists and is a regular file. If it does, the message "File exists" is printed. if test -d path/to/directory ; then echo "Directory exists" fi This checks if the specified directory exists.