Question : Fix Computer with TWO HostNames

Below is three PING results on the local computer.
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C:\>ping -a 127.0.0.1 -n 1

  Pinging WORKOFFICE.domain.local [127.0.0.1] with 32 bytes of data:

  Reply from 127.0.0.1: bytes=32 time<10ms TTL=128

  Ping statistics for 127.0.0.1:
    Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
  Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum =  0ms, Average =  0ms

C:\>ping workoffice -n 1

  Pinging WORKOFFICE.domain.local [10.10.10.20] with 32 bytes of data:

  Reply from 10.10.10.20: bytes=32 time<10ms TTL=128

  Ping statistics for 10.10.10.20:
    Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
  Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum =  0ms, Average =  0ms

C:\>ping -a 10.10.10.20 -n 1

  Pinging minint-xepfjg [10.10.10.20] with 32 bytes of data:

  Reply from 10.10.10.20: bytes=32 time<10ms TTL=128

  Ping statistics for 10.10.10.20:
    Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
  Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum =  0ms, Average =  0ms
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It appears the computer has two names: WORKOFFICE and minint-xepfjg.
Is one a ComputerName on the Domain and the other Local?
How can this be?
How can I change/remove minint-xepfjg?

Answer : Fix Computer with TWO HostNames

it depends on the DNS server which is resovling the IP addreses for you. if you are the admin of the DNS server, you can do it by changing its records.