When a browser cannot verify a site’s SSL certificate, an error message with the string NET::ERR CERT AUTHORITY INVALID appears. This incorrect code may be cause by a variety of SSL-related issues, including: Untrustworthy certificate authority. The browser will examine the SSL certificate’s history while accessing websites. If the certificate authority is suspicious, the browser …
Being mindful of both the information you share and the people you interact with on social media is a healthy habit. It might be challenging for you to manage or delete information you post online. This is especially true once it has been shared by another user. Oversharing information is arguably the biggest risk of …
Laptops are popular. They’re lightweight, powerful, and efficient. However, some of us cannot afford to upgrade our laptops every year. Some of us (the majority of us) cling to our computers till their last run. Even then, we strive to squeeze one last ounce of utility out of them. How can you make your old …
The sudo command allows normal users to gain administrator rights that are normally only available to the root user. This post will show you how to create a new user with sudo access on Ubuntu without having to change the sudoers file on your system. Create new Sudo users To add a new user to …
STEP 1. Write a message in a .txt file and save it. Place it in the same folder where the image is located. STEP 2. Open command prompt and set the directory to the folder where you put your text file and image. STEP 4. Type this command. pic.jpg = name of the image where …
Cybercrimes are becoming more frequent, and unsuspecting users are more vulnerable than ever before. When one click can cost thousands, and even millions, users need actionable to-do’s that can help them stay alert and safe online. Here are the few simple tips to make you more secure online: Use two-factor authenticator Two-factor authentication can waste …
A firewall is a type of security systems that can be either hardware or software. This can helps secure your network by acting as a gateway between your internal network and external traffic. A firewall works as a gatekeeper or barrier between your computer and another network, such as the internet. It acts as a …