I recently encountered an issue connecting to a remote server via SSH. I got the following error message: “kex_exchange_identification: connection closed by remote host.” After some research and troubleshooting, I … Read more
Have you ever experienced sluggish network performance, frequent disconnections, or downtime of your online services? If so, you may have been the victim of a DDoS attack. As a regular … Read more
When a DoS attack ack scan occurs, an attacker will send a large number of SYN packets to a victim’s machine. The victim’s machine will then respond with an SYN-ACK … Read more
In today’s world, countless cyber-attacks can occur against individuals, businesses, and organizations. Two of the most common are DoS and DDoS attacks. As an online user, it’s important to understand … Read more
Have you ever encountered an error message saying “sign_and_send_pubkey: no mutual signature supported” when establishing an SSH (Secure Shell) connection? SSH is a crucial tool for securely accessing remote systems … Read more
SSH and SSHD are two important tools that I use regularly. As someone who relies on both tools to perform various tasks, I figured it was time to learn more … Read more
An SSL/TLS protocol mismatch causes the error “ERR_SSL_VERSION_OR_CIPHER_MISMATCH” in your computer. This can happen when the server you’re trying to connect to doesn’t support the SSL/TLS protocol version that your … Read more
Have you ever heard the terms hotfix, patch, and service pack and wondered what they mean? As a software user, it’s important to know these terms and why they matter. … Read more
You’ve come to the right place if you’re curious about cryptographic algorithms and their crucial role in securing data. In this article, we’ll explore the differences between popular cryptographic algorithms: … Read more
Are you experiencing trouble connecting to an SSH server and seeing an error message that says “no matching host key type found. their offer: ssh-rsa”? As someone who has encountered … Read more
When it comes to downloading files, there are many different options available. Two of the most popular methods are Usenet and Torrent. As someone who’s been using the internet for … Read more
In today’s world, where cyber threats are constantly evolving, ensuring our data is secure is essential. And that’s where encryption tools like OpenSSL and GPG come in. If you’re new … Read more
If you’re reading this article, you probably encounter the frustrating error message “error: gpg failed to sign the data.” As someone who works with GPG regularly, I know how frustrating … Read more
If you’re reading this article, chances are you’re interested in encrypted communication and have come across the terms “GPG” and “PGP.” At first glance, they might seem interchangeable, but in … Read more
If you use GPG for encryption, you may already be aware of the importance of these keys in keeping your messages secure. But have you considered setting an expiration date … Read more