More than one IP addresses?

Carlos · #1 (**permalink**) 02-19-10, 04:48

Is it possible to assign more than one IP addresses to a single account?

Ishaan · #2 (**permalink**) 02-20-10, 05:05

Do you mean to say that, is it possible to assigned more than one IP to a single website?
If so, then you are able to assign only one shared or a dedicated IP address to a single website.

Martin · #3 (**permalink**) 02-21-10, 02:35

If you mean to ask about assigning more than one Dedicated IP address to either your VPS or Dedicated Server then yes, it is possible. However, getting an extra IP is only possible, if you have proper justification explaining the use of it.

Caddie · #4 (**permalink**) 02-21-10, 10:32

Quote:

Originally Posted by Martin

If you mean to ask about assigning more than one Dedicated IP address to either your VPS or Dedicated Server then yes, it is possible. However, getting an extra IP is only possible, if you have proper justification explaining the use of it.

Martin, I've been meaning to ask you about that well one of you intelligent guys. I've been reading some hosting blogs and there are a few people talking about the extensive amount of IPs that they require for their eCommerce sites. Why would you need 5 or more for an eCommerce site?

DavidJ · #5 (**permalink**) 02-22-10, 14:19

What is the purpose of having multiple IP addresses for one website if it is possible to have to do this? How can it help in SEO?

I don't think this is even possible because a domain must have only one IP address. If you want multiple IP address then you must also have multiple domains. Is my understanding correct?

Caddie · #6 (**permalink**) 02-23-10, 22:01

Quote:

Originally Posted by DavidJ

What is the purpose of having multiple IP addresses for one website if it is possible to have to do this? How can it help in SEO?

I don't think this is even possible because a domain must have only one IP address. If you want multiple IP address then you must also have multiple domains. Is my understanding correct?

I was trying to find out the same and so far what I know is that there is a way (from what I am told) to assign IPs to subdomains or some other method that is allowing multiple IPs because other than SEO, I know of ecommerce sites that show to have more than one domain. I can't figure it out though.

Hammering

Mickey · #7 (**permalink**) 02-24-10, 10:17

Quote:

Originally Posted by DavidJ

What is the purpose of having multiple IP addresses for one website if it is possible to have to do this? How can it help in SEO?

I don't think this is even possible because a domain must have only one IP address. If you want multiple IP address then you must also have multiple domains. Is my understanding correct?

I think that is what I understand about multiple IP addresses. If you use a (dedicated) server to host multiple domains, you will need a unique IP address for each domain. It is done for SEO purposes.

JeremyWJ · #8 (**permalink**) 02-25-10, 16:01

Quote:

Originally Posted by DavidJ

What is the purpose of having multiple IP addresses for one website if it is possible to have to do this? How can it help in SEO?

I don't think this is even possible because a domain must have only one IP address. If you want multiple IP address then you must also have multiple domains. Is my understanding correct?

That is not true. A domain can have many IP addresses. Its called round-robin when you use it. For example look at this dig from google.com

[root@server1 ~]# dig google.com A

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> google.com A
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27748
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;google.com. IN A

;; ANSWER SECTION:
google.com. 191 IN A 209.85.225.147
google.com. 191 IN A 209.85.225.104
google.com. 191 IN A 209.85.225.99
google.com. 191 IN A 209.85.225.103
google.com. 191 IN A 209.85.225.106
google.com. 191 IN A 209.85.225.105

;; Query time: 1 msec
;; SERVER: 63.210.101.3#53(63.210.101.3)
;; WHEN: Thu Feb 25 16:59:49 2010
;; MSG SIZE rcvd: 124

[root@server1 ~]#

You will notice google.com is using 6 IP addresses.

DavidJ · #9 (**permalink**) 02-26-10, 00:41

Thanks for the enlightenment. But I have read in Wikipedia that the one you have made an example is just a subnetwork. This link would explain what is subnetting: Subnetwork - Wikipedia, the free encyclopedia

I might be wrong with my understanding with subnetwork so a very explanation about it would be very much appreciated.

JeremyWJ · #10 (**permalink**) 02-26-10, 01:44

Quote:

Originally Posted by DavidJ

Thanks for the enlightenment. But I have read in Wikipedia that the one you have made an example is just a subnetwork. This link would explain what is subnetting: Subnetwork - Wikipedia, the free encyclopedia

I might be wrong with my understanding with subnetwork so a very explanation about it would be very much appreciated.

You are wrong, or misinformed again. Although those addresses all might be part of a google subnet, its still not limited to a subnet.

please have a look here for more information on round-robin DNS (multiple A records per domain): Round robin DNS - Wikipedia, the free encyclopedia

Subnetting is just a way of dividing up a network.

Again like I said earlier, the act of having more than one A record per domain is called round-robin DNS. It is possible, the IPs don't have to be related in any way. For example I could have the IPs for domain.com point addresses in the United States, Mexico, Africa, and China all at the same time in completely different IP networks.

To help prove my point here is a dig of yahoo.com clealy showing multiple IP addresses NOT in the same network (subnet)

[root@server1 ~]# dig yahoo.com A

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> yahoo.com A
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 11856
;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;yahoo.com. IN A

;; ANSWER SECTION:
yahoo.com. 21291 IN A 72.30.2.43
yahoo.com. 21291 IN A 98.137.149.56
yahoo.com. 21291 IN A 209.131.36.159
yahoo.com. 21291 IN A 209.191.93.53
yahoo.com. 21291 IN A 209.191.122.70
yahoo.com. 21291 IN A 67.195.160.76
yahoo.com. 21291 IN A 69.147.114.224
yahoo.com. 21291 IN A 69.147.125.65

;; Query time: 2 msec
;; SERVER: 208.67.222.222#53(208.67.222.222)
;; WHEN: Fri Feb 26 02:47:37 2010
;; MSG SIZE rcvd: 155

[root@server1 ~]#

Caddie · #11 (**permalink**) 03-10-10, 22:21

See, I knew I had heard it being called something before but couldn't for the life of me remember what it was. Round-Robin, seems like a well fitting name to me.

Thanks for explaining!

NCHosting · #12 (**permalink**) 03-11-10, 06:40

Quote:

Originally Posted by Caddie

See, I knew I had heard it being called something before but couldn't for the life of me remember what it was. Round-Robin, seems like a well fitting name to me.

Thanks for explaining!

Its called Server Load Distribution.

I don't see the link to SEO as Google can detect RRDNS in it's Search Algorithm.

Frankie · #13 (**permalink**) 03-13-10, 06:30

I can see and understand some of the benefits of having multiple IPs for eCommerce purposes but I don't really understand the rest. I'm fairly geeky but that was greek to me.

Caddie · #14 (**permalink**) 03-16-10, 01:55

Quote:

Originally Posted by NCHosting

Its called Server Load Distribution.

I don't see the link to SEO as Google can detect RRDNS in it's Search Algorithm.

Thank you for providing the clarification on the name. When I Google that I am able to see all kinds of information on it all. I know basically nothing about the Search Algorithm to begin with but I'm going to learn it all eventually.