Web Servers

Basically, as much as you want to spend on it. Almost any PC made in the last, oh, 15 years is almost certainly perfectly capable of serving as a small household web server or DNS host. If you want to run, say, Google, then you need not one web server but many of them, and they need to be fairly capable (and accordingly priced) machines to boot.

They work by running specialized programs that provide these services. Many popular versions can be obtained in source code form free of charge. One very common web server program is called Apache; DNS programs are usually called something with the letters DNS in it, like "dnsd". Windows Server versions have DNS capabilities and a web server program called IIS (Internet Information Service) built in.

Since I originally wrote this answer, routers have gotten more capable, to the extent that your typical $30-or-less router is perfectly adequate to handle DNS duties for a small home network. If you're trying to provide DNS for a hundred or more computers, though, you'll probably still need a bit more ... though it's nothing the PC you bought around the turn of the century can't handle given the proper software.

two types of exchange server:-

exchange server standerd

exchange server enterprise

They use client information to send information back to the client after they request something, but they only keep the information if they are configured to keep it. Many of the servers for large sites track the clients that connect to them.

What is the Apache Axis2 and what does it do? The Apache Axis2 is a re-designed core engine that replaced the Apache Axis Soap. The updated version can help you design a web server.

The protocol for guaranteeing delivery is TCP. For breaking data into packets is IP. For decrypting and decompressing data is HTTP

Because you havn't got permission to access it.

Web sites are (up) loaded to the server using an FTP program designed for that purpose. Many FTP programs, such as Core FTP, also offer editing and file transfer tools to use on the server too.

Yes save enternt

Server hosting is an infrastructure delivery model that provides IT, users, with remote access to server resources (CPU, Memory, Disk, etc.) in order to power applications and store data without the hassle of buying, configuring, and maintaining the server hardware themselves.

ping stands for packet internet groper. it is use for echo request and reply message to check the physical and logical connectivity of a machine on an internetwork

It means that some information, organized according to specific criteria, is shown on the screen, or printed.

An external server is a computer, or series of computers, that link other computers or electronic devices together. They often provide essential services across a network, either to private users inside a large organization or to public users via the internet. For example, when you enter a query in a search engine, the query is sent from your computer over the internet to the servers that store all the relevant web pages. The results are sent back by the server to your computer.

Clearing the cache is important to ensure that you do not access a locally stored representation of the web site, which may be down when you first access it and may be currently active, however it displays the cached version of the connection.

Yes; anytime a system is requesting information it is acting as a client, and when it offers resources to others it is operating as a server. The difference between client software and server software is the ability to offer more services and service requesters with server software.

go to Google and right the name of the server u want and put in front L2

Yes - this is frequently the case with web servers, which service requests on port 80 from multiple locations simultaneously.

Tcp/ip

it is a set of communication protocol, used for the internet and other similar networks

it is named from two of the most imp protocol transmission control protocol &internet protocol

transmission control protocol is responsible for providing connection oriented communicationand ensuring delivery of data

itmakes sure that the data reaches its destination by retranssmitting any data that is lost or corrupt

internet protocol

it provides delivery for protocol higher in the model its connection less delivery system tat makes best efforts attempt to deliver the packets to the coeerct destination

user data gram protocol (udgp)

it offers a connection less data gram service that is an unreliable best effort delivery

udp does not guarantee the arrival of data gram nor does it promise that the deliverd packet are in the correct squence

application does not require an acknowledgement of data reciept use ud

icmp(internet control message protocol)ping and tracert are two programs that use icmp message

http(port80) hyper text transfer protocol

it is used in internet to allow clients to request webpages from web severs and allow for client interaction with those web server

this system doesnot allow for good interaction with web server

smtp (port 25) simple mail transfer protocol

pop3 (port110)receive email

ftp file transfer protocol

port numbers for common protocol

21 - ftp

25- smtp

443 - https

53 - domain name system

The protocol for guaranteeing delivery is TCP.

TCP: is responsible for gauranteed delivery,

workstation is controlled by man but server is controlled by networrk of different computers

Anyone can own a webserver. A webserver is simply a computer with software installed capable of serving a website etc (like IIS or Apache)

SSL, commonly recognized by using https in stead of http

The Public-RootServers are strategically deployed around the globe. You can see a map of their locations at http://public-root.com/root-server-locations.htm

There are a number of potential advantages to a company having managed web servers. Some of these advantages are having more predictable and manageable costs, increased reliability, better security and reduced staffing requirements.

DNS