Which is better private or public IP address?

I am a newbie to network stuff, so it may seem a basic question, but I would be very grateful for some insight. Currently I have bought the server's IP address through a provider and I am using it in the same room as my PC (also bought through them). I've managed to connect my PC to the server's internet connection (my Internet connection is not in the same room, but if this was the case, I would set up my PC as a gateway server and route the network connection through my PC). Since now both are in the same room, how do I make sure that I don't overload the server's connection or cause any connection problems by routing everything through my PC? This is what the provider recommends for doing a server like mine.

If you bought the service over the internet the public IP you are given (it will have the ip address 192.168.0.1 to begin with) is the address that should be used on the internet. It can be reached from anywhere. If there is not internet available in your environment you could use the public IP as proxy. You need the service that gives you the public IP first.

What you should NOT do is using the internal IP you get as your server's local address. They are unique and if you want to talk outside your LAN it is needed. Because the provider also needs to use this IP they often give you a subrange and when one IP is used on your server the subrange is automatically reserved.

Since you run a server with public IP you may forward requests from an already active website. There are different software packages that can be configured for such cases and depending on the software you want to forward requests either to a different URL (for example: subdomain.foo.bar.com instead of www.com). To achieve this, you can simply point to a DNS zone with 2 entries:
"www.com" and "subdomain. That way even a browser that does not support subdomain hosting will find it.

What's my private IP address?

This is not the right place to ask this question. Try ##networking on irc.freenode.net, or #Network-Administration (the freenode channel). This is the correct forum for questions regarding the configuration of your computer's network interface. Please do not ask questions about using the DHCP server here.

The private IP address (address, netmask, and gateway) of a computer on a local network (typically LAN, but could also be WAN) is used for internetwork communication. By default, DHCP will assign the local IP address to the first NIC to request an IP address, and then will assign to it a netmask and gateway.

There are only a limited number of private IP addresses which can be assigned per subnet. This number is commonly set at 4, meaning that there are 16 billion total addresses (2 to the 16th power). This means that in theory, no one could own all of the IP addresses if every person owned a computer with a single NIC. However, in practice, IP addresses are allocated to many computers on a small subnet, so there are still fewer public IP addresses available.

This number may seem daunting, but in fact, this limit applies to any subnet (any network of computers which share the same block of IP addresses, such as all computers on a local area network, or all computers on a particular department or division within an enterprise). There is nothing special about a home IP address.

To check your local IP addresses, run the command ipconfig /all on Windows (ipconfig /all on Linux and OS X), or ifconfig -a on Linux or OS X. This will give you information about both the public and the private IP addresses on your computer.

If you want more information about IP addresses, you might find it helpful to view the following web page: your network uses IPv6). Can I have multiple IP addresses? Yes. It is possible to have more than one IP address on your computer, provided you're connected to two or more network interfaces.

Some operating systems have a network interface named eth0, eth1, etc, and by default this network interface uses one of the available IP addresses. This method is common on Linux and OS X systems.

What are the 3 private IP address ranges?

I don't know much about networking and I have read that the private IP address ranges are: 192.168.0/16, 172.0/12 and 10.0/8.

What exactly is the range that's used for each of these and what do they represent? The 192.0/16 range is one of many class C subnetworks. This means it is a private address space that has to be connected to the public Internet via a gateway.

The other two are class B subnets, which do not have this restriction. Both of these will provide a connection between your LAN and the outside world.

The range you list is the IP address space available on the network layer. The first one in your list is for the local host on your LAN, the second is for the local host on your WAN, and the third is for subnets in the NAT range.

You need to distinguish between IP addresses, networks and subnets. IP addresses are a way of referring to the computer's IP address on the network. They can be either private or public. This distinction is important because it is how the computer is identified.

A private IP address is an IP address that can be assigned to a specific computer (that is it is internal to the network). A public IP address is an IP address that can be assigned to any computer, ie it is external to the network.

A private network is a group of computers that can communicate with each other over an IP network. In order to communicate with another computer you need to have the correct IP address (a private IP address), however computers cannot communicate with computers they don't know about. If a computer wants to send a message to another computer on its private network then it needs to know the IP address of that computer (otherwise it has no way of knowing where to send the message).

A public network is a group of computers that can communicate with each other over a IP network. In order to communicate with another computer you need to have the correct IP address (a public IP address) however computers can communicate with computers they don't know about.

A subnet is a subset of computers within a network.

Is 12.0 0.1 a private IP address?

I can't seem to set the gateway IP address on the VM. Even though it uses the public IP, I can't ping anything on the outside and can't reach the host from the server.

A private IP address is not a public IP address. They are different. IP addresses do not have anything to do with network connectivity in any way. Your public IP will be used to transmit your data packets to other computers (this is how every computer or router in the world knows about your computer and what it has). If you want to access your computer through another server than what is assigned to the guest OS you should change the network settings. Network devices that do not know about a public IP address (ie routers and all kinds of switches) don't care about the public IP address that is assigned to a computer/host.

Is 172 a private IP?

How to find out if a private IP address is assigned to a specific device? Assume that I have an IP address of 192.168.254 and I want to know what IP is assigned to the computer with this IP address.

On Unix-like systems, you can use the netstat -rn command. To get information on the IP address of the machine using IP address 192.0 192.1 0.0 UG 0 0 eth0
0 255.0 U 0 0 eth0 From this output, you can see that the machine has an IP address of 192. On Windows, you can use the ipconfig /all command. An IP address is considered private when it is not publicly routable. Private IP addresses are often associated with a particular organization or user. Internet Protocol version 4 defines a range of private IP addresses from 10.0 through 10.255, while the more recent Internet Protocol version 6 uses a range from 172.0 through 172.31.

The Wikipedia article has more information.

What are public and private IP addresses used for?

What are the two types of IP addresses used for? What are private and public IP addresses used for? I want to get away from one-to-one or private IP (which is also called a Network Address, or Hostname, and will be used in a follow-up question) addressing. So, what are my options, now? I've always used public addresses. Which makes no sense, as they are public in nature; but for some strange reason, and I can't remember why, I did it. It was something with port assignment.

A public address is assigned directly to an interface. For example, eth0 has a public IP address in my lab. It's used internally by hosts on this segment to make routing lookups.

Is this correct? Or are there different uses of these addresses? I never would have guessed it, but, maybe its possible that we've created private networks and given them some public address to use to route traffic. To be clear: What I'm asking is simply what is the difference between public and private addresses? I know they're assigned differently and do different things (publics are used internally; publics are meant to be exposed). What are the other differences? My current view is publics are more versatile, but they aren't a good idea since you don't have any control over them.

The first thing to understand about IPv4 and IPv6 is that both protocols include the ability for hosts to create private address blocks. The difference between how the protocols define "private" and "public" is different in each case: In IPv4, private addresses are reserved for special use within a given organization. By default, a host on any network is given a Class A address unless that host has configured itself to use Class B or Class C addresses.

Class In this type of address, the first 4 bits determine the subnet. There are 1024 possible subnets per Class A address. So 4 bits = 20 values x 8 bits = 128 values (there are 254 values in all so the last two bits of the address are never used.) In practice, only 10 classes of IP addresses are ever used in any meaningful numbers, which happens to be 10, 18, 20, 28, 29, 30, 31, 48, 49, and 130.

Is 192.168 private or public?

I am planning to use a private IP address (192.168) for a server and a public IP address (say x.x) for the rest of my network.

The problem is that I can't find any "official" source to verify that the IP addresses are private or public. There is a list of private IP addresses here but it does not specify if they are private or public.

There is also a list of public IP addresses here but it only says that some IP addresses are reserved by IANA and has no info about whether they are private or public. Am I missing something? Can someone shed some light on this? IP addresses are public if they have an "A" or "AAAA" address, and they are private if they have an "F" or "FFFF" address. The term "private" and "public" in the context of IP addressing doesn't mean anything in particular. It's just a convenient way to refer to some kind of property of an IP address, usually used to group them into some kind of class.

IP addresses are always public, because every IP address can be reached using another IP address. This is true for both IPv4 and IPv6 addresses.

The distinction between "private" and "public" is between your own network and networks that are not part of your own. Your own network may have a set of private IP addresses that you own, and external networks may have a set of public IP addresses that are owned by organizations.