hostmask in a sentence

1. In the ident are separated by an exclamation mark in the hostmask assigned to him or her by the server.
2. I was told that / who is the command to pull up the history of all usernames used on a hostmask.
3. An O-line may also be set so that only users of a certain hostmask or IP address can gain IRC operator status using that O-line.
4. I took note of the hostmask of the user in IRC who was requesting it, but did not want to put it in the edit summary as it contained a hexadecimal representation of Mark 14 : 59, 13 Apr 2005 ( UTC)
5. It's difficult to find hostmask in a sentence.