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How to tell if you have a Private IP Address or a Public IP Address


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23 replies to this topic

#16 evazejip

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Posted 12 August 2014 - 09:26 AM

Fantastic post. This has helped me a lot - I got a question on my VCE test saying:

 

Which of the following is a public IP address?

A: 10.4.160.1

B: 55.5.254.1

C: 172.17.45.12

D: 192.168.100.100

 

Well the correct answer is B - This post helped me understand why, and how to tell what kind of IP address is what.



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#17 quietman7

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Posted 12 August 2014 - 05:42 PM

Glad to hear one of our forum topics was helpful to you.

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#18 Tunedport64

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Posted 11 January 2018 - 09:45 AM

would I be presumptuous in asking that when you build a web site and are ready to go online with it using FTP...that having a private IP would be safer?



#19 Didier Stevens

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Posted 12 January 2018 - 12:55 PM

A private IP address for your web server, your ftp server or your ftp client?


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#20 Tunedport64

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Posted 12 January 2018 - 02:19 PM

This is a great post..thank you in advance for what i have learned so far. I am referring to a private IP address for the web server...

 

that being said..just a thought and question about IP addresses and the possibility of catching the flu..if you will...

 

Would it be possible to have an alternating IP address so as to not allow malware and all the nasties?

 

Jerry



#21 Didier Stevens

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Posted 12 January 2018 - 04:34 PM

Private IP addresses are not accessible from the Internet. If you give a private IP address to your web server, it will not be accessible from the Internet.


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#22 sukritim90

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Posted 24 January 2022 - 07:34 AM

To check whether an IP address is private or public you can analyze and compare its range. Typically a private IP address starts with 192, 172, or 10 where as Public IP address can also start with 172 or 192. 



#23 Shplad

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Posted 19 May 2024 - 02:15 PM

To check whether an IP address is private or public you can analyze and compare its range. Typically a private IP address starts with 192, 172, or 10 where as Public IP address can also start with 172 or 192. 

 

Huh?

 

In English, "whereas" usually denotes contrast. But you've shown examples that are similar.

 

And what did you mean by "range"?


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#24 cryptodan

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Posted 19 May 2024 - 02:27 PM

Topic necromancy

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