You can find all IP address using hostname command with -I option. Mind you, if you use NSLOOKUP instead of PING, and the host has more than one IP address, then your variable will have a comma at the end, since each address will be separated by a comma. If that is your goal, you'll need to use NSLOOKUP with some extra code. In the following methods, I am going to discuss five different ways to get the IP address of a device. Note also that this technique cannot get more than one IP address. There are multiple commands available in the Unix operating system that can extract the IP address. They are not directly accessible from the internet unless a mechanism like Network Address Translation (NAT) is used to translate between private and public IP addresses. The most easy one was a site that only returned the IP address in plain text and nothing else. It gets that by either using wget -q0 URL or lynx -dump URL. Private IP addresses are defined by private IP address ranges reserved for local network use, as specified by the Internet Engineering Task Force (IETF) in RFC 1918. I do have a script that logs the IP address currently in use for the interwebs. It uniquely identifies devices within a private network and allows internal communication between devices. They are visible to the public internet and can be used to access devices or services from anywhere on the internet.Ī private IP address is used within a local network (e.g., home network, office network) and is not directly reachable from the internet. Public IP addresses are obtained from Internet Service Providers (ISPs) and are registered with regional internet registries. It allows communication between devices on the internet and is routable across the public internet. Here’s a short overview.Ī public IP address is globally unique and assigned to a device directly connected to the internet. bashrc to display the IP address of the host in the greeting message. Public and private IP addresses are two distinct types of addresses used in computer networks. Is there an easy way to programmatically extract IP address, without tedious parsing of ifconfigI would not mind simple command output processing using sed to do it but not processing multiline files from /etc some place. For example, an IPv4 address might look like 192.168.0.1. Both public and private IP addresses can exist within the space of IPv4 or IPv6. There are mainly two types of IP addresses. IP address is a unique address for every device connected to the internet or in a local network. Download the Practice Files What is IP Address?
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |