java - MS Sql server Hostname connectivity issue -

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we facing connectivity issue mssql server using java application. hostname mssql server below 

 “chennai.sqlsrv.codings.group.vps.local\cpss3"

is there limitation host name character ?..or such below reasons

  1. string long ?
  2. string malformed (\cpss3) ?

in other words if open connection using sqlserver management studio , use same parameters we’re able see , browse db’s objects.

if use hostname "cpp123" java application works fine without connectivity issue.

any appreciated..


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