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Showing posts from July, 2017

Domain Name Server(DNS)

Domain Name Server(DNS) What is DNS? Domain Name Servers (DNS) are the Internet's equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses.  There are three different parts of a domain name that assign meaning to the domain. Domain name:  Bluehost is the domain name in bluehost.com. Top-level domain:  This is the suffix at the end of the URL. Examples include .com, .org, or .blog. Subdomain:  This is a prefix that further classifies a domain, such as subdomain.bluehost.com. How does Domain work? To start a website, you need a domain name, but don’t worry. It’s easy! Bluehost provides you with a free domain name when you purchase hosting. As soon as you select your hosting package, Bluehost will instruct you to choose your domain name. You can select your domain name and your  top-level domain . As long as each part of the domain name is unique, you can pick any domain name...

Firewall

Firewall What is Firewall? A firewall is a network security system, either hardware- or software-based, that uses rules to control incoming and outgoing network traffic. A firewall acts as a barrier between a trusted network and and an untrusted network. A firewall controls access to the resources of a network through a positive control model. This means that the only traffic allowed onto the network is defined in the firewall policy; all other traffic is denied. Types of Firewall: Software Firewall Hardware Firewall Software Firewall here are two main advantages that software firewalls have over hardware ones. The first is that software firewalls can monitor outgoing data traffic. Not only does this prevent a computer from becoming a bot or a zombie, but also it can prevent computers from broadcasting any other malware, such as worms or  computer viruses . The other advantage is that software firewalls are customizable. These programs can be adjus...

VIM

VIM Vim is an advanced text editor that seeks to provide the power of the de-facto Unix editor 'Vi', with a more complete feature set. It's useful whether you're  already using vi  or  using a different editor . Users of Vim 5 and 6 should consider upgrading to Vim 7. The main advantages of Vim 6 compared to Vim 5 can be found on  this page .      What Is Vim? Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems. Vim is often called a "programmer's editor," and so useful for programming that many consider it an entire  IDE . It's not just for programmers, though. Vim is perfect for all kinds of text editing, from composing email to editing configuration files. Despite what the above comic suggests, Vim can be configured to work in a very simple (Notepad-like) way, called evim or Easy Vim What Vim Is Not? Vim isn't an editor de...