If you're truly experiencing a DNS issue, your system will not be able to resolve host names (Google.com) into IP addresses (74.125.225.78) which is what your computer really uses to communicate.
A simple test to verify that this is the case is to go to your terminal and ping a host name and then try to ping an ip address (on the internet). If you're able to ping the IP address and not the FQDN then you've got yourself a DNS issue because your DNS provider is not translating that name to an IP.
I suggest using either Google DNS or OpenDNS, both of which are offered free of charge.
Here's the original answer by Ashlee:
go into your operating system command prompt and attempt to do a
nslookup for a domain such as Google it should return a ip address
if it does not it is most likely a dns issue
to check for network issues use the ping command to ping a website and trace route command to trace the route to the ip address
DNS poisoning involves corrupting the DNS cache with false information, redirecting users to malicious websites. DNS hijacking involves redirecting DNS queries to a different server, allowing attackers to control traffic. Both can compromise network security by leading users to fake websites or intercepting sensitive data.
subnet mask
Hosts
A dnsmaq is a lightweight and easy to configure the DNS forwarder and also the DHCP server. It is aimed to design and provide a DNS and also a DHCP to a small network.
In Microsoft Windows Server 2003, you run the ipconfig /displaydns command to display the content of the DNS resolver cache. However, the results are incomplete. When this problem occurs, you do not receive a message.This problem occurs if there are too many entries in the DNS resolver cache. Typically, this problem occurs when there are too many custom entries in the Hosts file.This problem occurs when an allocated buffer is not large enough to contain all the contents of the DNS resolver cache. When the Ipconfig.exe tool allocates memory, it does not consider the DNS entries in the Hosts file.LINK Below
Check your network connections. That is usually a main problem of not communicating with either DNS or DHCP on a LAN.
A forwarder is a Domain Name System (DNS) server on a network used to forward DNS queries for external DNS names to DNS servers outside of that network. You can also forward queries according to specific domain names using conditional forwarders.A DNS server on a network is designated as a forwarder by having the other DNS servers in the network forward the queries they cannot resolve locally to that DNS server. By using a forwarder, you can manage name resolution for names outside of your network, such as names on the Internet, and improve the efficiency of name resolution for the computers in your network. For more information about forwarders and conditional forwarders
DNS servers
DNS Servers
No
They are network services that are always on listening on the network for requests. Example: DNS, DHCP ..... DNS resolves Domain Names to IP addresses. DHCP assigns dynamic IP addresses.
client/server network
A DNS address is the address to a server that converts a URL to an IP address. Most DNS address' are provided by your ISP, although there are many free DNS servers available.
Go to your network connection and select your local network - properties, Internet Protocol (TCP/IP) - prperties. Select "Use the following DNS server addresses" and enter the desired DNS server.
Nslookup.exe - The Windows 7 command-line utility that enables you to generate DNS request messages and then transmit them to specific DNS servers on the network is called __________.
DNS errors when trying to access a Wikipedia site can be caused by various factors. These errors typically occur when the Domain Name System (DNS) server is unable to translate the domain name (e.g., wikipedia.org) into an IP address. This can happen due to issues with the DNS server settings, network connectivity problems, or misconfigured DNS records. Troubleshooting steps may involve checking the DNS server settings, ensuring proper network connectivity, and verifying the DNS records for the Wikipedia site.
DNS poisoning involves corrupting the DNS cache with false information, redirecting users to malicious websites. DNS hijacking involves redirecting DNS queries to a different server, allowing attackers to control traffic. Both can compromise network security by leading users to fake websites or intercepting sensitive data.