What Does Certificate Chain of Trust Mean? A certificate chain of trust (also known as a certification path) is a sequence of digital certificates needed to validate a certificate issued to an entity by a certificate authority (CA). It allows relying parties to verify...
What is the 401 HTTP Status Code? The 401 Unauthorized is an HTTP status code that indicates the request to the web server requires user authentication. The full name is "401 Unauthorized" or "HTTP 401," as defined in the HTTP specification RFC 7235. The 401 code is...
A Basic Overview of RSA Key RSA (named after its co-creators - Ron Rivest, Adi Shamir, and Leonard Adleman) is one of the first public-key cryptosystems and is widely used for secure data transmission. It allows two parties - a sender and receiver to communicate...
What Can You Do If Your SSL Expires Having an SSL certificate is crucial for any website that handles sensitive user data like logins or transactions. But what happens if your SSL certificate expires? If you let that certificate expire, it can have serious...
Beginner's Guide to Setup an SSL Certificate in Python Python is a popular programming language used for a wide variety of applications, including web development. There are a few simple steps that need to be followed to install an SSL Certificate in Python. SSL...
What is the ERR_CONNECTION_REFUSED Error? The ERR_CONNECTION_REFUSED error occurs when a web browser cannot establish a connection with a website's server. This error appears when the server rejects the connection request or is unavailable. Common causes include...
What is HTTP Public Key Pinning (HPKP)? HTTP Public Key Pinning (HPKP) is a security feature that allows HTTPS websites to resist impersonation by attackers using mis-issued or fraudulent certificates. It allows sites to specify ("pin") which certificate authorities...
Quick Introduction About SSH (Secure Shell) SSH (Secure Shell) is a network protocol that creates encrypted connections between computers. It replaces insecure protocols like Telnet and FTP, which transmit data, including passwords, in plain text. The encryption used...
What Does Time Stamping Mean? Time stamping is the process of recording the date and time that a document, file, or data is created, modified, accessed, received, or sent. It provides a chronological reference point that establishes when information existed at a...
Know the Difference Between Datacenter Proxy and Residential Proxy Proxies are an essential tool for many online activities. They provide anonymity and bypass access restrictions. The two main types of proxies are data center proxies and residential proxies, which...
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