What does D.N.S. mean? Like DNS settings for your PC?
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DNS means domain name server. Normally it is ur ISP.
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On Windows Server Systems, the domain controller (DC) is the server that responds to security authentication requests (logging in, checking permissions, etc.) within the Windows Server domain.\n\nIn Windows NT, the central domain controller was known as the Primary Domain Controller (PDC), of which there could only be one with this role; all other domain controllers were identified as Backup Domain Controllers (BDC). In Windows 2000 and later, all domain controllers are theoretically equal, and therefore identified simply as Domain Controllers (DC). In practice however, this may not always be the case. In NT, a BDC can authenticate the users in a Domain.
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You could do a reverse-DNS lookup.  I don't know how helpful the information would be from a security standpoint.  Also you would tax your web server's processor.
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In Windows NT and Windows 2000 networking, the domain controller (DC) is the server that responds to security authentication requests (logging in, checking permissions, etc.) within the Windows Server domain. It is the server that essentially makes networking (at least in a secure function) possible.
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The domain name system (DNS) is the way that Internet domain names are located and translated into IP (Internet Protocol) addresses. A domain name is a meaningful and easy-to-remember "handle" for an Internet address. Because maintaining a central list of domain name/IP address correspondences would be impractical, the lists of domain names and IP addresses are distributed throughout the Internet in a hierarchy of authority.\n\nDNS Server should installed on your server for configuration. There are many books available in the market to learn how to configure and work with DNS.
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Use your hosts file.\n\nLocate the file as:\nWindows XP = C:&#92; WINDOWS&#92; SYSTEM32&#92; DRIVERS&#92; ETC\nWindows 2K = C:&#92; WINNT&#92; SYSTEM32&#92; DRIVERS&#92; ETC\n\nOpen it with note pad (it doesnt have a default program to open with so select it from the list)\n\nAdd the domain name that keeps opening then put some spaces and then put 127.0.0.1 so they are both on the same line.\nYou have to have <space>'s between, NOT tabs.\n\nwww.blurb.com    127.0.0.1\nblurb.com        127.0.0.1\n\nSave the file and whenever that site is requested in future it will fail to load as it will be using the address from your hosts file and not the DNS servers on the net.
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It means there is no reverse address record (PTR) record in the DNS system for that address. \n\nThe reverse record should point to the name of the site that uses the address. This happens often on sites that virtualize many websites onto one ip address-- tho is should resolve to the isp host.
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As soon as you give your computer a name it will show up in network neigborhood. Most likely you have done this while setup the OS.\nRight click on My computer / Tab Network Identification / Properties
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DHCP: Dynamic Host Configuration Protocol. Suppose a computer belonging to a network and without a fixed IP address. When it is turned on, it requests network configurations (this request is sent as a broadcast request - everyone in the network can listen, but only a DHCP server will answer). The DHCP server answers this request with informations as IP address, netmask, gateway IP, DNS server, and so on. This IP address can be valid by a period of time (depends on the DHCP server configuration), and, when this period is over, another network configuration request is sent to the DHCP server.\n\n\nDNS: Domain name system. It is used to translate IP address in  readable (or sometimes not ;-) ) names. For example: when you type www.yahoo.com in address field of your browser, a request is sent to your DNS server (that can be fixed or got by DHCP request) and the server answer with the IP address of that name. With this address you can do all the communication needed. The inverse also can be done: you request the name of a host and the DNS answer the name of that host. Below is a link for BIND site, which is a very used DNS server. And a HOWTO too ;-)
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Assuming you are talking about naming a windows machine for the local network- you cant.  The problem is that "/" is used to denote where on the network a resource is, for instance &#92;&#92;myComputer is a computer and &#92;&#92;myComputer&#92;musicFolder is only ever interpreted as my musicFolder on myComputer.\n\nSpace is also not allowed, but you can use '_' as a quasi-space character.  when you try and name your computer, it will give you the complete list of disallowed characters, but it should suffice to say that what you want is impossible- so work around the problem, not through it.
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DHCP\n(Dynamic Host Configuration Protocol) Software that automatically assigns temporary IP addresses to client stations logging onto an IP network. It eliminates having to manually assign permanent "static" IP addresses. DHCP software runs in servers and routers. See IP address, DDNS, APIPA, link-local address, DNS and WINS.
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Domain Name System\n\nIt converts a domain name, such as answers.yahoo.com into an IP address such as 9.44.120.7 which is used by the network to locate computers
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Maybe the DHCP provided (if you get your DNS from DHCP) DNS Servers are not responding in time. I had my ISP change the primary and secondary DNS servers and my connection when to crap.  Through the VPN, you're probably using your company's DSN servers.\n\nCheck to make sure your primary and secondary DSN server respond.\n\nIn windows, open a command shell. Type "nslookup yahoo.com" and see if you get a response.
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You need to refer DNS servers
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If you're asking what is the URL to your computer, there's none. Your personal computer is adressed via an ip adress, that is your URL in fact but as your ip adress is dynamic it's not easy to give to someone.\n\nWhat you can do is use dynamic aliases, that is you instal a software that will tell a server you current ip adress and that server will make the link between your ip adress and that name.\n\nThere are some free dynamic DNS servers that are easy to configure.\nOf course your computer's firewall must let people access at least to your web server (that you installed and that waits connection in general on port 80), in windows XP you can do this by going to start>configuration panel>firewall and create an exception...\nGood luck !!!
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it means that the network address that your computer picked up is the same as another on the network.  you probably have it so your computer has locked in a network address, and you want the computer to find the best address for you...this can be changed in your network preferences....let me know if you need steps through this.
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I got same message on one machine.\nThat computer had virus, DSL internet connection and browser settings were also messed up.\nIf you are using internet explorer, you can restore the default settings, specially under tool, internet options,connections,LAN settings toggle with automatically detect settings.