DNS Errors May Cause Web Site Problems

The solutions for DNS Errors and Website Problems?

What is DNS?

DNS inner workings are complex. However, to the extent that the end user is concerned, it is actually quite simple.

DNS is like a phone book. When you type a URL (domain name) in the browser, or click on a link, the browser looks up the domain name of a table from a DNS server, which finds and gives your network "IP address" very similar to a phone number. An IP address looks like 111.22.333.44.

DNS server names and IP addresses must match the server and domain registration for optimal website performance.

Common DNS Issues

If you run a "DNS Report" (you can find a report of excellent online dnsstuff.com DNS) Most of the problems that can be found will not make your site is not really essential to keep in mind. is that the server records the names and IP addresses to register the corresponding domain name to the DNS zone on the server. This is usually not a problem for the new website of the brand, but if you move your site from one server to another can be a problem.

Name Servers parents glue, glue bad Mismatched

This means that recording was probably incorrectly nameservers. This is more likely to occur if you have custom name servers. Make sure the IP addresses in the domain corresponding to the IP address of the server log. If you have shared hosting and do not have access to the DNS server, consult your server administrator for the correct names. This can also happen if the TLD of your domain name ("com" or "net" or "org", for example) does not correspond to the TLD server names. This will not make your DNS fails. But it can cause a bit slow. Usually, it's nothing to worry about.

Missing (stealth) nameservers and stealth NS record leakage

Your site is very likely to run in this state, but can lead to strange results sometimes. This happens when no name servers in the DNS zone on the server, not on the field. This is more likely if the site was moved to another server. The solution is either:

If the servers are not required, eliminating additional nameservers DNS zone on the server.
If the name servers belong, must be added to your domain registration.
Servers or missing names Lame
This is essentially the opposite of the name servers missing (stealth) above.

You may have forgotten to add a name server to create / update your domain registration. Make sure you have all required servers correctly added to your domain registration.
Make sure the servers respond with authority on the server for your domain. If the name servers and IP addresses on the server of the game in the registry and they still have a problem, you may need to ask the server administrator for assistance.
"A" records missing
Make sure that each record "NS" on the server also has an "A" for registration. This is usually done at the server.

nameserver propagation

This is not a real error. It takes some time to change the name servers on record that has been observed by the DNS servers around the world. Propagation usually start in about 2 hours or less, and must be completed within 48 hours. If your site continues to behave erratically after 48 hours, you can run a DNS report.

other errors

Most other errors may be found not affect the functionality of your website. If you have any problems, you may need to do more research.

What Is DNS? - DNS Resolution and Caching

Here are the solutions for DNS Resolution and Caching?

DNS stands for Domain Name System and is the method by which the Internet works. dns It is a method of converting domain names (such as Google.com) to an IP address dns, then locate the Web server where the website is hosted and display the page of the person dns requesting the information. This is done through a series dns of messages transmitted between providers and services Internet name servers dns.

How does the DNS?

The whole system starts when a domain name is written dns in the taskbar (for this example we will use Google.com ). Once this is done your first computer dns checks its cache to see if they have a record of the IP address of this page and, for this example dns we will assume that you have never visited before Google.com.

If there is no record in the local cache of your computer dns will ask your ISP (Internet Service Provider), if you can find the IP address of the server containing Google.com. Your ISP then contact a "root" server (owned by the ICANN Board of the Internet) that will return an answer where to look for.com domain names. The root dns server is known as a recursive name server since the ISP account where to look next and does not offer a definitive dns answer.

Once the ISP know where dns to look for.com domain names will ask this name server to find information on "Google.com" (note that we are now searching the entire area, not just the extension). This dns recursive name server checks the records and say this is the IP address of the ISP for that domain dns running on a server called "authority" and give its location in the ISP.

The ISP then ask the server name "authority" for the IP address of Google.com (s authoritative, since it is the end of the line and has the dns answer we want). This IP address will be returned by the access provider equipment. Your computer will connect dns through your ISP's IP address directly to the maintenance of Google.com web server and display the page for you.

This whole process is called "DNS resolution" or a "DNS lookup" and is the key to the functioning of the modern Internet, and we can remember much better than the IP addresses of domain names. To accelerate this process every step of caches was dns established that allows the ISP to avoid having to go to each recursive name server. This is both a dns blessing and a curse, as it greatly accelerates the time to load pages, but it means that any changes to the web configuration and (as IP, which is a site) sites can take up to 48 hours to be seen by all as caches still point to the old location and load the old page!

I hope this has given you a little help in understanding what DNS and why dns sometimes the Internet is not as immediate as we would like it to be!