What Is a C-Class IP?

Chris Worner

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#1
Can you explain me what is a C-Class IP? It would be great if you can show me some example how does a C-Class IP work? many thanks!
 

hostens

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#2
C-Class IP address means that it belongs to a range that starts at 192.0.0.1 and ends at 223.255.255.255. The class of IP address describes in what range the first block of the IP address will be from. A block has IP ranges that first block starts from 0. to 127., B from 128. to 191., C from 192. to 223, D from 224. to 239. and E from 240 to 255.

So for example, these random IPs, would belong to such categories:
A- 8.180.XX.164
B - 194.XXX.222.12
A - 91.24.x.44
C - 222.111.x.33
D - 225.225.225.0
E - 255.255.255.0
 

Chris Worner

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#3
Chris Worner
Thanks for sharing me this great info!

Where can I find C-Class IP on my server? and when do I need to use it?
 

hostens

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#4
hostens
It is not like your server has an IP address for each of the classes. Your service provider will probably assign you single IPv4 address that will be of A, B or C classes. In general, when using the IP address it is no difference between these classes.
 

morganwill

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Hello,

Can I provide 2 different A records for my website, if one A record goes down it will still work with another A record like a backup


Morgan
HOSTASP & INDIAACCESS
 

hostens

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#6
You can definately have 2 IP addresses assigned for your website. The visitors then would have 50/50 chance of visiting through one or another IP address, so if visitor would fail through one of the IP addresses, by refreshing the address there would be a change that the connection would be done through another IP address. But if you wish to have as a backup option that is active only when main IP is inactive it is not possible as I know, since A records does not have an option that would allow to set a priority on the records.

If you will choose to set your domain with 2 IP addresses, make sure you check with your website programmers, since you might need of linking the websites/databases if the IP addresses will be of 2 separate servers.
 

morganwill

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Hello,

So Technically its not a good option to add 2 A Records.


Morgan
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hostens

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#8
hostens
Well, you can use 2 A records for the same part of the domain, it would balance the load between the two used servers. However if you would try to choose this as a solution to possible inaccessibility of the website, my recommendation would be to try checking for some other, more reliable options.
 
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