hostname and ip - demystified :)

Never involved in hardcore network programming after my academics., but recently found this tweak really handy sometimes., its trivial once u realize what it is :)

Majority of corporates have M$ Windows domain running and at least, i sometimes wanted to know either windows machine's host-name or  ip-address, given the other one. so.,

• IPAddress to HostName
  just try trace route command
  >tracert 169.24.137.123 
  Tracing route to  labpc004148.apr.dhcp.ht.com [169.24.137.123] 
  over a maximum of 30 hops:
  1  <1 ms    <1 ms    <1 ms  [169.24.182.1]
  2  <1 ms    <1 ms    <1 ms  jsr21-vlan299.itg.ti.com [169.24.253.34] 
  3  <1 ms    <1 ms    <1 ms  labpc004148.apr.dhcp.dt.com [169.24.137.123]
  
  
• HostName to IPAddressjust ping the hostname, :) it will resolve into ip-address
  
  
  >ping labpc004148
  Pinging labpc004148 [169.24.137.123] with 32 bytes of data:
  
  Reply from 169.24.137.123: bytes=32 time<1ms TTL=126
  Reply from 169.24.137.123: bytes=32 time<1ms TTL=126
  Reply from 169.24.137.123: bytes=32 time<1ms TTL=126
  Reply from 169.24.137.123: bytes=32 time<1ms TTL=126
  
  Ping statistics for 169.24.137.123:
      Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
  Approximate round trip times in milli-seconds:
      Minimum = 0ms, Maximum = 0ms, Average = 0ms