Top "Ip" questions

This tag is for questions related to the Internet Protocol.

get region/city from ip

how can I retrieve the region and the city from an ip? I have found this service: http://api.hostip.…

php ip ip-geolocation
Best node.js module for finding location?

I had found couple of node.js modules for finding the information about client location and network using ip address. …

node.js geolocation ip node-modules maxmind
What information can I get from an IP address?

If you have IP addresses of a set of computers (in a LAN), what other information can be deduced from …

operating-system ip ip-address lan
How do I get the external IP of my server using PHP?

I often hear people say to use "$_SERVER['SERVER_ADDR']", but that returns the LAN IP of my server (e.…

php ip
Changing IP address via command line on Windows XP

I'm trying to change a machine IP address via cmd.exe with this code: netsh int ip set address name="…

command-line windows-xp ip netsh
How can I determine network and broadcast address from the IP address and subnet mask?

For example: IP Address: 130.45.34.36 Mask: 255.255.240.0 What would be Net ID/Subnet Address, and Broadcast Address?

networking network-programming ip broadcast subnet
How to ping MAC address in Linux

I want to ping a known MAC address, I tried to use nmap: sudo nmap -sP 192.168.15.1/24 | grep 20:64:32:3F:B1:A9 …

ip ping mac-address arp
Get IP address with URL string? (Java)

In my program a user enters a url string, say http://www.engineering.uiowa.edu/~hawkeng//fall01/graphics/potato.gif …

java ip ip-address inetaddress
list all computers on a network with cmd or C#

I need to get a list of all the computers on the network The network is split into two local …

c# networking ip psexec subnet
Fastest way to scan ports with Java

I made a very simple port scanner, but it runs too slow, so I'm looking for a way to make …

java sockets ip port-scanning