Can two computers have the same hostname?

Question 1: Yes it is possible for multiple devices to have the same hostname on a network, you can simply change the name of any two computers on a network and they will share the same hostname.

What happens when two computers have the same name?

No, computer names must be unique. When you added the second computer with the same name, windows changed the sid in the AD database that goes with that name making the first machine not able to talk to the domain.

How do I find the hostname of another computer?

Querying DNS

1. Click the Windows Start button, then “All Programs” and “Accessories.” Right-click on “Command Prompt” and choose “Run as Administrator.”
2. Type “nslookup %ipaddress%” in the black box that appears on the screen, substituting %ipaddress% with the IP address for which you want to find the hostname.

Can a host have multiple hostnames?

For more info see Linux namespaces. So, it is absolutely possible to have multiple hostnames and domain names for the same system. E.g., docker container inside the same host has different hostname than host system.

Can a hostname have multiple IP addresses?

Hosts that have more than one network interface usually have one Internet address for each interface. Such hosts are called multi-homed hosts. For example, dual-stack hosts are multi-homed because they have both an IPv4 and an IPv6 network address.

Can 2 servers have same DNS?

Yes, its perfectly normal and an often used scenario. Just configure your, for example, Apache server with the same virtual host(s) on both webservers. Remember that hostname/domain is a separate thing from IP address, so server A will have one IP, server B will have another.

How do you fix a duplicate name exists on the network?

You can rename a computer by right-clicking on the My Computer icon on the desktop, choosing Properties and then clicking on Computer Name tab. Click the Change button and type in a new name for the computer. Restart your computer and the problem should be gone.

How do I rejoin a domain with the same computer name?

1 Answer

1. You need to reset the account of the computer object in Active Directory before joining this new PC to domain. Then you can join this new PC to domain retaining the old system’s name.
2. Dis-join the old PC from domain, change the hostname (to be on a safer side).

Can multiple hostname correspond to a single IP address?

Explanation: It need not be that a single hostname will correspond to a ip address. For example facebook.com and fb.com both correspond to same ip address. So there can be multiple hostnames for a single ip address.

Can a host have more than one interface?

A host has multiple network interfaces that connect to physically connected networks, but for routing or performance reasons, you might want to assign network interface preferences to different activities.

Can single DNS name have multiple addresses?

Can a machine with a single DNS name have multiple IP addresses? How could this occur? ANS: Yes. Remember that an IP address consist of a network number and a host number.

Can I have 2 A records with the same IP address?

Answers. From DNS point of view, there is nothing wrong with having multiple A records pointing to the same IP. This is often done to “hide” the actual server name, so that application can be moved to a different machine/instance without clients noticing the move. Reverse dns is another thing.

How many nameservers can you have?

At a minimum, you’ll need two DNS servers for each Internet domain you have. You can have more than two for a domain but usually three is tops unless you have multiple server farms where you would want to distribute the DNS lookup load. It’s a good idea to have at least one of your DNS servers at a separate location.

How do I know if my DNS is primary or secondary?

Open your Command Prompt from the Start menu (or type “Cmd” into the search in your Windows task bar). Next, type ipconfig/all into your command prompt and press Enter. Look for the field labeled “DNS Servers.” The first address is the primary DNS server, and the next address is the secondary DNS server.

How do I find duplicate network names?

Use nbtstat -n in a command window to see which name is in the Conflict state. (eventvwr: Another machine has sent a name release message to this machine probably because a duplicate name has been detected on the TCP network. The IP address of the node that sent the message is in the data.

What is duplicate name?

Duplicate means to copy. So if you duplicate a name, you copy it.

How do you rejoin a computer without losing it’s Sid?

There are a couple of ways do this: In AD right click the computer and select Reset Account. Then re-join without un-joining the computer to the domain. Reboot required.

How do I Unjoin a domain?

How to: How to Unjoin a Computer from a Domain

1. Step 1: Click start.
2. Step 2: Click System Properties.
3. Step 3: For windows 10 Click system info after the system properties opens.
4. Step 4: Click Change.
5. Step 5: Select the Workgroup radio button.
6. Step 6: Enter a workgroup name.
7. Step 7: Click OK.
8. Step 8: Restart.

Can I have two servers with the same hostname?

According to best practices you should always assign different names if only possible. Yes, you can have the same hostname for the two server. They will have different FQDN so both of them can be resolved. However, this may lead to problems since the default NetBIOS name of a host is the same as its hostname.

Can two computers have the same computer name?

However, the new desktop’s computer name is exactly the same as another computer. Both computers have the same name, are on the same subnet, and are on the same domain.

Can two devices have the same hostname but different MAC addresses?

2.Both have different but similar MAC addresses. (first three octets are same). Show activity on this post. Question 1: Yes it is possible for multiple devices to have the same hostname on a network, you can simply change the name of any two computers on a network and they will share the same hostname.

Do computers on the same subnet have the same name?

Recently had headquarters send me a new desktop, replacing an old one. However, the new desktop’s computer name is exactly the same as another computer. Both computers have the same name, are on the same subnet, and are on the same domain. Each computer has a unique IP address.