Category: ping

Categories
DNS lookup Linux ping traceroute

Web-based ping, traceroute and DNS lookup

Today I ran across three useful online tools to do a quick test from multiple locations worldwide of ping, traceroute and DNS lookup.

  • just-ping.com – Online web-based ping: remote ping a server or web site using our network with 40 checkpoints worldwide.
  • just-traceroute.com – Online traceroute from 4 locations worldwide.
  • just-dnslookup.com – Remote DNS lookup (nslookup/dig) from 30+ locations worldwide.
Categories
Command Line Linux ping RDNS Reverse DNS Windows

How to: Reverse DNS from Windows Command Line using Ping

Here’s a quick and easy way to do a Reverse DNS (RDNS) lookup using ping.exe from a Windows command prompt using the -a switch.

ping -a <IP Address>

Example

ping -a 76.96.54.12

This example will resolve the address as follows:

Pinging www4.comcast.net [76.96.54.12] with 32 bytes of data:

Reply from 76.96.54.12: bytes=32 time=66ms TTL=51
Reply from 76.96.54.12: bytes=32 time=7ms TTL=51
Reply from 76.96.54.12: bytes=32 time=7ms TTL=51
Reply from 76.96.54.12: bytes=32 time=7ms TTL=51

Ping statistics for 76.96.54.12:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 7ms, Maximum = 66ms, Average = 21ms