What is Authoritative and Non-authoritative DNS Server? Understand the difference between Authoritative and Non-answer for DNS query in simple words. What is Non-Authoritative DNS Server? Non-authoritative name servers do not contain original source files of domain’s zone. They have a cache file for the domains that is constructed from all the DNS lookups done...
You can have great software on your computer, and you can be very careful about the sites you visit on the Internet, but still, it is inevitable that you will eventually face some problems with your software and/or hardware. When that happens, you can have a professional track down the source of the problem...
Nslookup stands for “name server lookup” is a useful command for getting information from DNS server. It also very useful for troubleshooting DNS related issues. It queries to DNS (Domain Name Server) and get the dns records for any domain for ip address. In this tutorial you will get some useful examples for nslookup...
Htop is an interactive process viewer, a system-monitoring tool for Linux/Unix system. It is an optimized version of Linux top command. Using Htop you can find better results. Htop also supports mouse events to select any process with the mouse. Htop provides a more user-friendly and readable view of CPU, Memory, Load uses on...
Glances is a cross-platform system monitoring tool written in Python. This is a better alternative to the top and htop monitoring tools. This tool provides most of the information on the single screen. And the best thing is, it’s accessible over the browser. Also, it can be used as client-server architecture where we can...
Web development industry is one sector that has thrived over the years owing to the advancement in the technology. The growing trend in technology has prepared the stage for businesses that are flourishing at a rapid pace and are aiming to be more successful than brick and mortar stores. So, if you are one...
Digital agencies are a common business nowadays, but it takes real quality of work to stand out. With such a stiff competition, only those who offer extra value to their clients will find extraordinary success. Here are some of the principles to follow if you want to attract and keep your clients. Be Analytical...
If you are running a successful business, that means that you have managed to overcome most of the obstacles set before you. However, that does not mean that you have time for a breather because unless you pay attention to the security strategies implemented, your data may be at risk. Even more so, it...
Set Access-Control-Allow-Origin (CORS) authorization to the header in Apache web server. Add the following line inside either the <Directory>, <Location>, <Files> sections under <VirtualHost> in Apache configuration files. You can also place this inside the .htaccess file. Header set Access-Control-Allow-Origin "*" Example: To allow Access-Control-Allow-Origin (CORS) authorization for all origin domains for all files...
For us modern people, the internet is the air we breathe. It is hard to imagine a day without this omnipresence, as it serves as a source of entertainment, information, and profit. And the only thing that is worse than no internet is a slow internet connection. In the wake of such a predicament,...
