Understanding the differences between PEM and DER file formats is important for handling SSL/TLS certificates, as they are two of the most commonly used formats for storing these certificates and keys. Here’s an overview of each format: PEM Format DER…
Excel’s XLOOKUP function, introduced as a powerful replacement for the traditional VLOOKUP and HLOOKUP functions, offers a more versatile and straightforward approach to searching data in spreadsheets. However, like any advanced feature, users might sometimes encounter issues where XLOOKUP doesn’t…
Introduction When you browse the internet, you are actually accessing different websites by their domain names. However, your computer doesn’t understand domain names, so it needs to translate them into IP addresses.This is where Domain Name System (DNS) servers come…
XLOOKUP is a powerful function introduced in Excel to simplify and enhance the capabilities of searching and retrieving data from a range or array. It’s designed to replace older functions like VLOOKUP, HLOOKUP, and LOOKUP by offering more flexibility and…
Alternate row color shading in Excel, also known as “zebra striping,” refers to the practice of formatting rows in a spreadsheet so that adjacent rows have different background colors. This visual distinction makes data easier to read and scan, especially…
In PostgreSQL, the `search_path` is a configuration parameter that determines which schemas the system will check and in what order when an object (like a table or a function) is referenced by a simple, unqualified name. By default, the `search_path`…
On a Linux system, TCP ports in a reserved range (typically less than 1024) can only be bound by processes with root privilege. If we’re trying to bind a port in a Linux environment less 1024, we will receive a…
It was late Thursday evening when I ran into a pesky network issue on our Linux server that had me stumped for hours. We had just wrapped up deploying a new application, and suddenly, users started reporting intermittent connectivity issues.…
When it comes to Amazon Web Services (AWS), S3 is one of the most popular services. This is because S3 provides a secure and scalable storage solution for businesses of all sizes. In order to ensure that your S3 buckets…
A PFX file is a certificate in PKCS#12 format. It contains the SSL certificate (public keys) and the corresponding private keys. Most of the Certificate Authorities will not issue certificates with the private key. They just issue and share the…
