What is the difference between DNS A record and SRV?

In IPv4, a DNS record specifies what IP address(es) to forward queries for a domain to. There are three types of records: A, CNAME, and SRV.

The SRV record gives a priority (0-65535) and weight (0-65535) to the service (port) specified in the record. The weight is a relative priority to the other services on the same port. The weight is normally used to load-balance a server farm. It's also used in conjunction with a DNS cache for high-availability.

The A record specifies a hostname that the request should be sent to.

What is an example of a SRV record?

In the last couple of weeks, I have been working on my network. I currently have a working Active Directory and Domain controller and DNS. I am still in the testing phase and I want to be sure that all my DNS records are working. I have been using this guide as my reference and I have noticed that I have an SRV record for my DNS server, but I have no idea what an SRV record is and I would like to understand how it works. Any help is greatly appreciated.

The way I understand it, the SRV record is a record that points to a DNS service. So, I believe that the SRV record should be for example.com and it should point to my dns server. Is that correct? What should the SRV record look like?

I do not understand how the SRV record is a record that points to a DNS service. I do not see how the SRV record points to the DNS service. I do not see how the SRV record is a record that points to a DNS service.

SRV records are authoritative records that identify the location of the service. They are used in locating the server.

The SRV record contains a type (in this case, A), a target name (in this case, http.tcp), and a port number (in this case, 80). The SRV record specifies that the DNS server is located at the IP address of the target name and the port number is the name of the TCP connection to the service.

The SRV record is used in locating the service. If the DNS server knows the IP address of the target name, it can tell you where the server is located and direct you to the correct TCP connection to the server.

So, I guess my question is what is an example of an SRV record?

What is the 123 Reg SRV record?

The SRV record is one of the core records in the TCP/IP protocol.

Its job is to provide a means for computers on the internet to discover each other. In the TCP/IP communication protocol used for the internet, the IP address of a computer is only a rough indication of its actual location. Instead of the IP address, the TCP/IP records a hostname and an SRV record to indicate the location of the server for that domain.

In a company intranet that does not have many servers and just one router/firewall, this is not an issue. However, the situation changes in networks where server computers are located at varying distances from one another. They do not have static IP addresses.

One example scenario might be you want to log on a website that is hosted on an ISP service. In that case, you may receive the following message: You did not provide an appropriate SRV record. This is often because you have a local DNS server. Or possibly your ISPs router has DNS functionality and its configured incorrectly.

To check if this is the problem, first type the following command in the linux terminal: netstat -rn 0.1 If there are a lot of responses, the most likely culprit is that your DNS server (most likely one in your local machine) is returning a wildcard match. Let us examine the above example to understand how the server looks for an address. The line we are interested in looks like this: Here are some examples of what you can do if your problem persists: In most cases, the root cause of the problem is a name server with no proper configuration. In some cases, a firewall also blocks access to port 53. Usually, DNS is configured correctly and the root cause of the problem is a name server in your local area network with no proper configuration. Sometimes, it can be caused by a DNS caching server in your local area network. However, you should be able to verify all of these details for yourself by checking what netstat returns as described above.

The important part to notice in the output of the above command is the second field where the value is "IN-ADDR".

How to format an SRV record?

The SRV record format is defined in the Internet RFC 2136. The SRV record type is defined in the RFC 1035. When an SRV record is sent, a special DNS name is added at the end of the name: http.tcp.example.com.

What's the difference between SRV record and A record? It's obvious that when an SRV record is created, the name of the domain is set with a pointer: http. The same name can be defined as an A record. How to create an SRV record? In the Host field of the SRV record, enter the FQDN (Full Qualified Domain Name) of the domain to which the record belongs: In the Target field, enter the IP address of the server where the service is running: http.com In the Priority field, enter a value from 1 to 65535: 10

In the Weight field, enter a value from 1 to 65535: 20

In the Port field, enter a value from 1 to 65535: 80

In the Server field, enter a value from 1 to 65535: 80

In the TTL field, enter a value from 0 to 65535: 1

Save the changes to the SRV record. The SRV record is stored in the dns-sdb database and is sent to the DNS resolver when the DNS resolver needs to find the location of the server where the specified service is running. How to verify an SRV record? Open the command line and type: host example.com has address 209.16.100

The SRV record is successful. How to verify an SRV record with nslookup? You can check the SRV record with the nslookup command, using the -n flag.com Server: dns1.com Address: 192.168.