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10 min readTo configure HTTPS for a load balancer, follow these steps:Obtain an SSL/TLS certificate: Before configuring HTTPS, you need to acquire an SSL/TLS certificate from a trusted certificate authority (CA). This certificate will ensure secure communication between the client and the load balancer. Install the SSL/TLS certificate: Once you have obtained the certificate, install it on the load balancer.
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7 min readAliases in Bash are used to create custom shortcuts or abbreviations for frequently used commands or command combinations. They allow users to define their own easy-to-remember names for complex or lengthy commands.Creating an alias in Bash involves using the alias command followed by a chosen name (usually in lowercase) and the command or commands it represents, enclosed in quotes.
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5 min readParsing a PDF in Kotlin can be achieved using external libraries such as Apache PDFBox or iText. Here's a step-by-step guide on how to parse a PDF using Apache PDFBox in Kotlin:First, ensure that you have added the required dependency for Apache PDFBox in your Kotlin project. You can do this by including the following line in your build.gradle file: implementation 'org.apache.pdfbox:pdfbox:2.0.
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7 min readTo configure a custom SSL cipher suite, you need to follow these steps:Identify the SSL/TLS library or server that you are using. Popular options include OpenSSL, Microsoft IIS, and Apache HTTP Server.Understand the format and syntax used by the particular SSL/TLS library or server configuration file.Determine the cipher suites you want to include in your custom suite. A cipher suite is a combination of encryption algorithms, key exchange methods, and message authentication codes (MACs).
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4 min readWildcards are special characters that can be used in Bash programming to match multiple files or directories with similar names. They provide a convenient way to perform operations on multiple files at once.Here are some commonly used wildcards in Bash:Asterisk (*) wildcard: Matches any sequence of characters, including no characters. For example, *.txt will match all files with a .txt extension in the current directory. Question mark (?) wildcard: Matches any single character.
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10 min readTo disable TLS versions for security compliance, there are several steps you can follow:Understand TLS versions: Transport Layer Security (TLS) is a cryptographic protocol used to secure communication over the internet. From TLS 1.0 to TLS 1.3, there have been several versions, with each offering different security features and capabilities. Identify the TLS versions to be disabled: Determine which TLS versions are considered weak or vulnerable for your organization's security standards.
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4 min readTo run a command in the background in Bash, you can use the following syntax: command & Here, command represents the actual command you want to run. By appending an ampersand (&) to the command, it instructs Bash to run the command in the background.Running a command in the background frees up the command prompt, allowing you to continue working in the terminal while the command executes in the background.
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5 min readTo create and reuse a package in Kotlin, you can follow the steps below:Start by creating a new Kotlin file in your project. Right-click on the desired package name in the project structure and select New -> Kotlin File/Class.Assign a name to the file. This will be the name of the package as well.Inside the file, define your functions, classes, or any other code you want to include in the package. These entities will be members of the package.
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10 min readWhen a webpage is accessed using the HTTPS protocol, all its content, including text, images, scripts, and other resources, should also be served over HTTPS. However, sometimes a webpage may contain "mixed content," meaning it includes both HTTP and HTTPS resources. This can lead to mixed content issues, raising security concerns and potentially causing problems with the webpage's functionality.
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4 min readTo check the status of the last command in Bash, you can use the special variable $?. Here is a brief explanation:Each time a command is executed in Bash, it returns an exit status. An exit status of 0 indicates success, while a non-zero exit status indicates an error or failure.To check the exit status of the last executed command, you can simply print the value of the $? variable. Here's an example: command status=$.
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3 min readTo remove all whitespace in a string using Kotlin, you can make use of the replace function with a regular expression pattern. Here's the code snippet that demonstrates how to remove whitespace from a given string: val originalString = "Hello World" val stringWithoutSpaces = originalString.replace("\\s".toRegex(), "") In this code, we declare a variable originalString which holds the original string containing whitespace.