Latest notes, articles, and news
Starting with the v10.0.0 release (end of September 2024), Chilkat moves to standard semantic versioning. Prior to this release, for various technical reasons, Chilkat was stuck with versions 9.5.0.xx, where only xx changed. For this first leap to semantic versioning, where the major version changes to 10 (from 9), there are no backward incompatible changes. Going forward, when we move […]
Most Chilkat classes have a LastErrorText property. It contains detailed contextual information about what transpired in the last method called on an object instance. The LastErrorText will contain information even when the method succeeds. This allows us to understand what happened when a method succeeds, but for some reason doesn’t behave as expected. Important: Each time a method is called, […]
Chilkat provies an online tool at https://tools.chilkat.io/curlHttp to generate application code from a cURL statement. If you have an HTTP/REST request working in Postman, you can get the cURL statement, and then paste the cURL statement into Chilkat’s online tool to generate your application code. Get cURL statement from Postman Request To get the cURL statement from a Postman request, […]
The issue of accented characters being displayed as question marks in black diamonds (�) in your browser usually stems from character encoding problems. Here are the most common causes and solutions: 1. Incorrect Character Encoding in the HTML Document The browser needs to know the correct encoding to properly display accented characters. If the document’s encoding is not set correctly, […]
Deep inspection firewalls, also known as deep packet inspection (DPI) firewalls, analyze the content of network traffic beyond basic header information, inspecting the payload of packets to enforce security policies, detect anomalies, and filter out malicious data. While this provides enhanced security, deep inspection can interfere with FTP uploads and downloads due to the unique characteristics of the FTP protocol. […]
How SFTP and FTP Are Different Protocols SFTP (Secure File Transfer Protocol) and FTP (File Transfer Protocol) may both be used for file transfers, but they are fundamentally different protocols in their design, security mechanisms, and underlying technologies. 1. SFTP (Secure File Transfer Protocol): Not an Extension of FTP: SFTP is not related to FTP. It’s a completely different protocol […]
Question: I have a vendor that wants me to send text files to their SFTP server. They want me to use SFTP to send the files. I have other vendors to which I use SFTP to send files but they use a password for authentication. I use Chilkat libraries to do the SFTP to those vendors. This vendor has supplied […]
Chilkat’s SSH class provides the ability to start a shell session by calling SendReqShell, or by calling QuickShell. You can alternatively run a single remote command by calling SendReqExec. SendReqExec does the “exec” command, whereas SendReqShell (or QuickShell) starts an interactive shell session where bytes sent to the SSH server via methods such as ChannelSendString are the equivalent of keystrokes […]
In Classic ASP, if you want to run the same code at the start of each web page, the best approach is to create an include file containing the code and then include that file at the beginning of each page. This way, you can centralize the code and ensure it runs on every page. Steps: Create an Include File […]
In AWS S3 (Simple Storage Service), the concept of folders does not exist in the traditional sense as it does in a typical file system. Instead, S3 is a flat storage system where all objects (files) are stored in a single, global namespace. However, AWS S3 simulates a folder-like structure through the use of object key naming conventions. Key Concepts: […]