what is the important  of  dns server in the network?
552824
DNS is like the 411 of the internet. You give it a name (www.website.com) and it will give you the telephone number (IP address). Without 41 (DNS) it would be like calling every telephone number (IP address) in the system.\nMost ISPs run their own DNS and it will be updated on a regular basis, depending on the need of the server. You can even run your own DNS server if you wished. It is not very practical for the the average user. It would be a great way to learn about servers and DNS.
383609
The Internet ("inter-" + "network") is a large computer network made up of several nodes of smaller networks. Ultimately, the Internet is just a system for billions of computers to be able to send data to eachother at any given moment.\n\nThe Internet relies on the Internet Protocol (IP), layer 3 of the OSI model. IP provides a way to specify where you want to send data ("IP addresses"), but not much that plays a very obvious role on the Internet...\n\n...And what exactly is a protocol?\nA protocol is just a way of doing things. It can be very detailed and strict or very lenient. For example, the way you get dressed in the morning could be called a protocol. At the same time, the way to file your taxes is a protocol.\n\nProtocols provide guidelines that should be followed for 'optimal' performance - if you send you taxes to the wrong address, you'll have an angry government. If these are not strictly adhered to, something might horribly break. But when talking about computers and "networking", a protocol is usually a "communications" mechanism that helps computers talk to - and understand - eachother.\n\nThe same people who created the Internet Protocol also created higher level protocols (protocols that directly rely on IP). A couple of these protocols are the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). Again, these protocols don't explain what the most obvious parts of the Internet are - like WWW and FTP - but they provide some insight into the multi-layered complexity of it all.\n\nTCP and UDP are the two more popular Internet protocols. There are higher level protocols that rely on these, and inevitably even higher level protocols than those. But TCP and UDP (with IP) provide the basic underlying functionality of the Internet and define an important concept: the client-server networking paradigm.\n\nThis paradigm has two parties to every discussion, a server and a client. A server, so named because it "serves" clients, listens to certain types of network traffic and when it "hears" its name being called, it answers. A client is the one doing the calling.\n\nA server, also known as a service or daemon, is really just a program running on somebody's computer. It is designed to provide some functionality for requesting parties (clients). Likewise, a client is a computer program designed to talk to a server. Many such clients make these "discussions" transparent to a user (and many don't require any user interaction at all).\n\nServers rely on protocols in a way to understand their clients and vice versa. If you were to talk to someone who only spoke a language you didn't understand, you couldn't derive anything useful from your attempt at conversing. This is the case with servers as well. The protocols define languages the clients and servers can use to better understand eachother.\n\nAn example of such a protocol is the Hypertext Transfer Protocol (HTTP). HTTP provides a way for servers to serve documents (computer files) to requesting clients. Namely, a "web browser" (a client) connects to a "web server" (a server) and asks for a "web page" (a computer file). The server responds by telling the client something in language it understands - it says "here is the document you wanted", "I couldn't find that", or "there was a problem".\n\nSince you are writing PHP code, you probably understand that HTTP has some more options than just those, and what HTML is. With that information, you have a pretty good idea of what the World Wide Web is. WWW does not make up the Internet, but many such things - FTP, gopher, NNTP, POP, IMAP, SMTP, etc., etc., etc. - together make up the Internet.\nWith all of these, the programs that support them, and the people that require them, the Internet works. Really, how the Internet works is that millions
637167
Unless you have a dedicated server that handles its own name service it won't be your hosting account that has your DNS records.  The site where you registered your domain name will almost certainly have a control panel where you can modify the DNS for your domain.\n\nOnce you've managed to log in you'll see a number of records for your domain and you're right it is the MX records you're interested in.  There will probably be two records there already and you need to add a third record. The third record should contain the name of your other hosting account's mail server and it should have a priority number *higher* than either of the two records that are there.\n\nYou also need to make sure that your other hosting account will accept mail for your domain.\n\nThis type of redirection is tricky and quite easy to get wrong.  My recommendation is that rather than trying all of this to get your mail working, switch to another hosting service (there are lots of them out there) where your site stays up.  You might experience a day of downtime as it switches over, but at least you get to dictate when that happens to cause you the minimum of inconvenience - rather than have a site that randomly switches off on you.
719925
DNS and DHCP are two different services and run independantly. If you remove DNS you can only access sites that you know the IP address to. If your DHCP is not assigning out IP addresses then it is your DHCP service that is missconfigured. You need to start by trouble shooting that, start with your connections, make sure on your router, switch, or hub (which ever you are using to make multiple connections) is indicating connection with a green light, second check each workstation is set to obtain automatically, third, if you are using any kind of firewalls ensure that you are not blocking the UDP packets DHCP requires access to setup the clients. Thirdly, check the configuration of your DHCP server, make sure you have given it an IP Pool to pull from, ensure if you are using multiple NIC cards in your DHCP server that its service is bound to the appropriate NIC., Finally, try uninstalling the DHCP Server and reinstall.
640176
plain and simply put, a server is the computer which directs network traffic (ie. permits or denies), it provides services to clients (ie. print, DHCP, DNS, File Sharing, Storage, and many more). A client is ANY machine that utilizes said services from a Server, being this is true, at times if a server is using services from another server, then the one server is in effect a client.
409739
well, the main function of the DNS server is to convert domain names (www.example.com) to an ip adress, which can be queried directly; also can do reverse lookups. all DNSs should work, because if one doesn't have an record, it will query another DNS server based on the hierarchy for that specific record, and then it will go down the chain back to you; it's a somewhat complex mechanism and involves zone transfers,etc. investigate to see if it's an adress resolving problem or something else. interchanging dns servers sounds stupid, as far as i know; tell them to explain you what they think is wrong, maybe that should yield more details. it seems to me that the DNSs are not properly configured.
175050
DNS\nNetBIOS Name Service\nWINS\nC: &#92; WINDOWS &#92; System32 &#92; Drivers &#92; etc &#92; hosts
307619
You need to refer DNS servers
825722
Use the java.net.InetAddress class or one of its two subclasses.\n\nNote:  the string name for the computer will be as it is mapped in the DNS, which may be slightly different than what you see "locally".
480263
Domain name is not a Universal resourse locator.  NOr is it the name of a website.  It is a name that you own.  Usually something that you can group your resources under.  Several DNS records are available.\n\n\n\nA records provide a pointer to a resource.  Usually to a website\n\nMX records are mail records pointing to a email server.\n\nany ways a domain is like having an address to which all of your family can be found.  Rent one for about 9 bucks a year if you want to provide your own email server and web server\n\nRent one for about 9 to 15 a month and some one will include them for you.\n\nDo your buisness right and find some one who knows what they are doing to create your web site....  its worth the money.
597225
DNS server have nothing to do with mails .. to send mail u have to know the ip of the person u send to him and this ip is converted in this days to the email address
1157568
Hi..\nI just gone through your setup...\nWell i would like to recommend few changes, if you dont mind!\nShift to a powerful free server as Abyss Webserver: http://www.aprelium.com/\n\nAnd for the Dynamic DNS option, i would recommend, using DynDNS Software...its more sophisticated & powerful mapping your dynamic IP changes to your local server!\nCheck: http://www.dyndns.com/services/dns/dyndns/\n\nRegarding your HTTP request not served.. i would recommend you to run your server other than port 80..the common HTTP serving port!\nThis happens because many ISP's block these port from serving the content..\nSo run your server on any other arbitary port number like 5581\nWhile, in the dynamic server mapping...give same port number!\nSo, you can access your site locally as: http://localhost:5581\n\nTry it.. i am sure you can get it working around!\nBest of Luck..
551784
A file server is really only necessary for the second thing you mentioned, which is storing files centrally. Everything else can be accomplished with a wireless router.\n\nThe real advantage to having a server setup, beside central file location, is central user management. In other words, you can set up user privileges, access, data locations, etc. from a central place. When they login anywhere, the settings will apply automatically.
263898
Basically you have DNS and/or WINS.  Both need to be specified either statically in the TCP/IP settings or assigned to you dynamically by the DHCP server.\n\nBasically, DNS is used to resolve the fully qualified domain names such as mypc.myflorida.com=192.168.1.10\n\nWINS is used with NETBIOS to resolve the short names like just mypc=192.168.1.10
233834
You're not really asking the right question - but I understand what you're looking for. You don't want to run your own DNS server. You want a service to host dynamic DNS for your home IP, thus assigning it a permanent name. \n\nYes, there are such services - check out www.dyndns.com. You can create a free account and download a piece of software for your computer. By running that software, you're advertising your current IP address to dyndns.com. They are then taking that information and publishing a DNS entry associating it with a host name of your choosing.\n\nThis is great for a small scale website that you share with your friends. However, if you want something larger that gets a lot of traffic, it is best to put it on a server at your ISP or a web hosting company. Most home Internet connections have a lot of bandwidth for downloading but very little for uploading.
1094664
Actually DB server hostname/DSN has been provided by you web hosting company this details you can get from there.\nYour Database Name: in that server hosting tem has alcotated some db to you website\nDatabase Username/ Password: to authaticate you\nprefix for table in database for more information go to Source
1156408
In a corporate network, you want a Static IP for any servers or any computers hosting resources or providing any kind of service (web servers, printers, routers, file servers, etc). That's because a Dynamic IP does not guarantee a machine will keep the same IP all the time, and if a server/service provider changes IP, the clients may not be able to find it.  \n\nIt's the same for the Internet--- if people/web clients/whatever external computer will be coming to your computer to retrieve information or services, it has to be able to find the resource.  \n\nThis is usually facilitated by DNS which keeps track of server/service names and their corresponding IP's; DNS updates to client machines is sometimes slow, so the clients may go looking in the old location (old IP) if the server changes IP, and the DNS updates themselves may be done manually so the DNS server may not even be aware that your server has changed IP.