Web Hosting

What Is Hosting? Hosting (Also Known as Web Hosting / rental hosting) is the rental place to accommodate the data required by a website and so cans accessed via the Internet. The data here May be a file, images, emails, applications The / programs / scripts and databases. Understanding Hosting Can be described as the Following example: a website likened equal to stall / space at the Mall. Mall Management Renting space, infrastructure, electricity, telephone and other facilities so people cans open a business. Each kiosk manager May differ, the decor is Different and Each operates in its own way. In this case the rented kiosks or certainly have limited space (eg: 10m x 7m) and the maximum is the size of the Mall building. Hosting Company provides hardware, network (infrastructure), email (telephone), and so That you Can open / create a website. Server (buildings Mall) is inhabited by many of our customers, Each customer has its limits the use of diskspace (space limitations) and of course, Each customer operates their own website.

understanding dns Server

DNS (Domain Name System) is a system that changes the host name (such as linux.or.id) into IP addresses (such as 64.29.24.175) on all computers connected directly to the Internet. DNS also can change the IP address into hostname.

DNS works in a hierarchical and shaped like a tree (tree). The upper part is a Top Level Domain (TLD) such as COM, ORG, EDU, MIL, etc.. Like the tree control have sought branches from the base to the tip. At the time we find an example linux.or.id first asked the TLD DNS server on the DNS server serving the domain. Id like answered ns1.id, after which he asked the ns1.id about the DNS server responsible for. Or . id like ns.or.id then he asked and answered ns.or.id about linux.or.id 64.29.24.175

Meanwhile, to change the IP hostname domain involves in-addr.arpa. Like other domains in-addr.arpa domain name any branching. The important thing is to remember its IP address written in reverse order under the in-addr.arpa. For example for the IP address 64.29.24.275 linux.or.id process as an example: find the server for ARPA, looking for the in-addr.arpa servers, search for 64.in-addr.arpa servers, search servers 29.64.in-addr.arpa , locate the server for 24.29.64.in-addr.arpa. And search for information 275.24.29.64.in-addr.arpa. Inverting the sequence of numbers can indeed be confusing.

DNS Server in Linux

DNS Server in Linux are usually run by a program called named. This program is part of the bind package coordinated by Paul Vixie of the Internet Software Consortium. Normally this program is located in / usr / sbin / named and run at boot time from / etc / rc.d / init.d / named start. To be named is run on every boot insert named to the list of servers that must distart using ntsysv.

Configuration Files
The configuration file for named is / etc / named.conf which as usual is a text file. This file format such as C or Pascal program format ie each command ends with ';' and block commands in parenthesis with '{' and '}'. There are some blocks that are often used, namely:

options
to set the global server configuration and determine the default
zone
to set the DNS zone configuration

Caching Only DNS Server

Caching Only DNS Server will find the answer to control and remember the answers when you ask again. This will shorten the waiting time in the next control question, especially if you are using slow connections such as modems.

Configuration
Caching-only DNS configuration file has been provided by Red Hat caching-nameserver package you just install the package and edit the file / etc / named.conf and add the following line in the block options:

    forward a first;
   forwarders (
     202.158.3.6;
      202.158.3.7;
   );

Internet

Internet or an Abbreviation of the interconnected network is a global communications system links computers and computer That networks around the world, Which includes a variety of resources from the beginning of static information into dynamic and interactive. History of the Emergence and development of the Internet beginning with: Year 1962 Department of Defense, U.S. Defense Advanced Research Projects Agency (DARPA) decided to do research on how to connect a computer to form an organic network. This research program Known as the ARPANET, Which no other in order to avoid the centralization of information at one point Considered to be prone to be destroyed in the event of war. This method is Expected if one section of the network is lost, the path through the network Can be automatically transferred to other channels. It has been more than 10 computers connected to successfully Which one another so they want That Can Communicate with Each other and form a network.

In 1972
Roy Tomlinson managed to complete the e-mail program he created a year ago for the ARPANET. E-mail this program so easy That Became popular IMMEDIATELY. In the Same year, @ icon is Also introduced as an Important Symbol That indicates "on" or "ins". ARPANET computer network is developed outside the United States. Computer University College in London was the first computers Which is outside the United States Who Are members of the ARPAnet network. In the Same year, two computer experts to WHO Vinton Cerf and Bob Kahn Presented a Bigger ideas, Which Became the Forerunner to the Internet thinking. This idea was Presented for the first time at the University of Sussex.

In 1976,
exactly on the date of March 26, 1976, is a historic day, Pls help the Queen of England managed to send an e-mail from the Royal Signals and Radar Establishment at Malvern. A year later, already more than 100 computers on ARPANET Merged to form a network or networks. In 1979 Tom Truscott, Jim Ellis, and Steve Bellovin, creating the first-named USENET newsgroups. In 1981 France Telecom created a buzz by launching the first TV phone, call Each Nowhere Can other people while dealing with a video link. Year 1982 For That form the network computers Becomes more and more, We need a formal protocol That is recognized by all networks. At this year established TCP or Transmission Control Protocol and Internet Protocol or IP As We Know it all. Meanwhile in Europe appears a computer network Known as the counter Eunet, Which provides computer network services in countries of Dutch, British, Danish and Swedish. Eunet network provides e-mail and newsgroups USENET.Tahun 1984 For uniform address on existing computer networks, this system was introduced in the domain name, now We Are familiar with DNS or Domain Name System. Computers connected to the existing network has more than 1000 computers. In 1987 the number of computers connected to the network has soared 10-fold more Manjadi 10 000. Oikarinen of Finland in 1988 and simultaneously Introduce Jarko find an IRC or Internet Relay Chat. A year later, the number of interconnected computers soared 10-fold return in a year. No fewer than 100 000 computers are now forming a network. Year 1990 is the year's most historic, Pls Tim Berners Lee to find the program editor and browser Can you surf from one computer to another, Which form a network. This is a program Called www, or the worl Wide Web. Year 1992 Computer That is connected together to forms a network already exceeds a million computers, and appeared in the Same year the term surfing the Internet. Year 1994 Internet site has grown into a page address 3000, and for the first time virtual-shopping or e-retail Appear on the Internet. The world is changing. In the Same year Yahoo! Established, Who is Also after the birth of Netscape Navigator 1.0. While the history of the Internet Itself in Indonesia began in the early 1990s, Pls the network is the Internet in Indonesia is better Known as community networks, the spirit of Cooperation Nowhere, fraternity and mutual assistance is very warm and Felt Among the perpetrators. Internet Is Somewhat Different with Indonesia in the atmosphere That feels more commercial development and the individual in the trade activities involving Those most ESPECIALLY the Internet. Cans and enjoy the new commercial Internet services in the years around 1994.

In 1979 Tom Truscott, Jim Ellis, and Steve Bellovin, creating the first-named USENET newsgroups. In 1981 France Telecom created a buzz by launching the first TV phone, call Each Nowhere Can other people while dealing with a video link.

Year 1982 For That form the network computers Becomes more and more, We need a formal protocol That is recognized by all networks. At this year established TCP or Transmission Control Protocol and Internet Protocol or IP As We Know it all. Meanwhile in Europe appears a computer network Known as the counter Eunet, Which provides computer network services in countries of Dutch, British, Danish and Swedish. Eunet network provides e-mail and newsgroups USENET.Tahun 1984 For uniform address on existing computer networks, this system was introduced in the domain name, now We Are familiar with DNS or Domain Name System. Computers connected to the existing network has more than 1000 computers.

In 1987
the number of computers connected to the network has soared 10-fold more Manjadi 10 000. Oikarinen of Finland in 1988 and simultaneously Introduce Jarko find an IRC or Internet Relay Chat. A year later, the number of the interconnected computers soared 10-fold return in a year. No fewer Than 100 000 acres now computers forming a network. Year 1990 is the year's most historic, Pls Tim Berners Lee to find the program editor and browser Can you surf from one computer to another, Which form a network. This is a program Called www, or the worl Wide Web. Year 1992 Computer That is connected together to form a network already exceeds a million computers, and appeared in the Same year the term surfing the Internet.

Year 1994
Internet site has grown into a page address 3000, and for the first time virtual-shopping or e-retail Appear on the Internet. The world is changing. In the Same year Yahoo! Established, Who is Also after the birth of Netscape Navigator 1.0. While the history of the Internet Itself in Indonesia began in the early 1990s, Pls the network is the Internet in Indonesia is better Known as community networks, Nowhere the spirit of Cooperation, fraternity and mutual assistance is very warm and Felt Among the perpetrators. Internet Is Somewhat Different with Indonesia in the atmosphere That feels more commercial development and the individual in the trade activities involving Those most ESPECIALLY the Internet. Cans and enjoy the new commercial Internet services in the years around 1994.