Error when fetching data thru Link server

When i am trying to fetch data from linked server i am getting two types of error messages:

Error 1:
Msg 18452, Level 14, State 1, Line 0
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
Msg 10054, Level 16, State 1, Line 0
TCP Provider: An existing connection was forcibly closed by the remote host.

Error 2:
OLE DB provider "SQLNCLI" for linked server "premierprw" returned message "The transaction manager has disabled its support for remote/network transactions.".
Msg 7391, Level 16, State 2, Line 1
The operation could not be performed because OLE DB provider "SQLNCLI" for linked server "premierprw" was unable to begin a distributed transaction.

Regarding Error2: how can i execute distributed transation in my server.

Thanks in Advance