Is it possible to back up a remote bd sql server via C #?

Thanks to @HStackOverflow and @ Marciano.Andrade for the workarounds, however I was able to resolve with the code I had posted.

The only part that I changed was in the Server instance having added a connection. Here's how it went.

String connectionString = "Data Source=127.0.0.0;Initial Catalog=minhaBase;User Id=sa;Password=12344567;";
SqlConnection sqlConnection = new SqlConnection(connectionString);
ServerConnection conn = new ServerConnection(sqlConnection);
// Connect to the local, default instance of SQL Server. 
Server srv = new Server(conn);

If you want to back up a database on MS-Sql Server remotely so that backup files are created on your computer, I'm sorry to inform you that this is not possible. You can perform a remote backup by script but the files will be created only locally (in the database location, that is, on the server).

There are other ways to do this by creating scripts that reflect the database you are trying to back up, follow the SOEn link on the same issue: How can I backup a remote SQL Server database to a local drive? / p>

@Edit: To back up a SQL database remotely via C # you can connect to the base and run a script containing the backup routine you need. One way to generate this script is to do the backup manually, but before clicking OK on the backup screen, click the "Script" button in the top bar of the backup window. This will open a script with all the syntax needed to perform the backup as you want. To illustrate, here's an example I use:

C #:

public static void FazerBackup(string dataBase, string diretorio, string nomeAquivo)
{
    string connectionString = WebConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
    using (SqlConnection conexao = new SqlConnection(connectionString))
    using (SqlCommand comando = new SqlCommand("RealizaBackup", conexao))
    {
        comando.Parameters.AddWithValue("@DATABASE", dataBase);
        comando.Parameters.AddWithValue("@DIRETORIO", diretorio);
        comando.Parameters.AddWithValue("@NOMEARQUIVO", nomeAquivo);
        if (conexao.State != ConnectionState.Open)
            conexao.Open();
        comando.ExecuteNonQuery();
    }
}

Procedure "RealizesBackup":

CREATE PROCEDURE [dbo].[RealizaBackup]
    @database           VARCHAR(MAX) = NULL,
    @diretorio          VARCHAR(MAX) = NULL,
    @nomeArquivo        VARCHAR(MAX) = NULL
AS
BEGIN
    DECLARE  @sqlCommand NVARCHAR(MAX)
    IF RIGHT(@diretorio,1) != '\'
      SET @diretorio = @diretorio + '\'
    SELECT @sqlCommand = 'BACKUP DATABASE ' + @database + ' TO DISK = ' +
        CHAR(39) + @diretorio + @nomeArquivo + CHAR(39) + 'WITH NOFORMAT, NOINIT, NAME = N' + 
        CHAR(39) + @database + '-FULL DATABASE BACKUP' + CHAR(39) + ', SKIP, NOREWIND, NOUNLOAD, STATS = 10'
    PRINT @SQLCOMMAND
    EXEC SP_EXECUTESQL @sqlCommand 
END

using System;
using System.Data.SqlClient;

namespace teste
{
    class Program
    {
        private const string Sqlconnection = @"Server=192.168.0.1;DataBase=master;user id=sa;password=xxx;Connection Timeout=0";

        static void Main(string[] args)
        {
            BackupFullDIff();
        }

        public static void BackupFullDIff()
        {
            var localPastaCopia = @"c:\copia";
            var sqlConn = new SqlConnection(Sqlconnection);
            sqlConn.Open();

            //BACKUP FULL
            var comandoSql =
                string.Format("BACKUP DATABASE NOMEBD TO DISK='{0}' WITH  INIT ,  " +
                              "NOUNLOAD ,  NAME = N'NOMEBD backup',  " +
                              "NOSKIP ,  STATS = 10,  NOFORMAT ", localPastaCopia + @"\minhaCopiaFull.BAK");
            var sqlComm = new SqlCommand { Connection = sqlConn, CommandText = comandoSql, CommandTimeout = 0 };
            sqlComm.ExecuteNonQuery();

            //BAKUP DIFERENCIAL
            comandoSql =
            string.Format("BACKUP DATABASE NOMEBD TO DISK='{0}' WITH  INIT ,  " +
                      "NOUNLOAD ,  DIFFERENTIAL ,  NAME = N'NOMEBD backup',  " +
                      "NOSKIP ,  STATS = 10,  NOFORMAT ", localPastaCopia + @"\minhaCopiaDIFF.BAK");
            sqlComm = new SqlCommand { Connection = sqlConn, CommandText = comandoSql, CommandTimeout = 0 };
            sqlComm.ExecuteNonQuery();

            var localPastaRestauraBd = @"c:\dados_restaura";
            //RESTORE FULL
            comandoSql =
                String.Format("RESTORE DATABASE {0} " +
                "FROM DISK='{1}' " +
                "WITH RECOVERY, " +
                "MOVE 'NOMEBD_data' TO '{2}\NOMEBD_Data.MDF', " +
                "MOVE 'NOMEBD_log'  TO '{2}\NOMEBD_Log.LDF'", "NOMEBD", localPastaCopia + @"\minhaCopiaFull.BAK", localPastaRestauraBd);
            sqlComm = new SqlCommand { Connection = sqlConn, CommandText = comandoSql, CommandTimeout = 0 };
            sqlComm.ExecuteNonQuery();

            //RESTORE FULL e DIFF
            /*
            comandoSql =
                String.Format("RESTORE DATABASE {0} " +
                "FROM DISK='{1}' " +
                "WITH NORECOVERY, " +
                "MOVE 'NOMEBD_data' TO '{2}\NOMEBD_Data.MDF', " +
                "MOVE 'NOMEBD_log'  TO '{2}\NOMEBD_Log.LDF'", "NOMEBD", localPastaCopia + @"\minhaCopiaFull.BAK", localPastaRestauraBd);
            sqlComm = new SqlCommand { Connection = sqlConn, CommandText = comandoSql, CommandTimeout = 0 };
            sqlComm.ExecuteNonQuery();

            comandoSql =
            String.Format("RESTORE DATABASE {0} " +
            "FROM DISK='{1}' " +
            "WITH RECOVERY, " +
            "MOVE 'NOMEBD_data' TO '{2}\NOMEBD_Data.MDF', " +
            "MOVE 'NOMEBD_log'  TO '{2}\NOMEBD_Log.LDF'", "NOMEBD", localPastaCopia + @"\minhaCopiaDiff.BAK", localPastaRestauraBd);
            sqlComm = new SqlCommand { Connection = sqlConn, CommandText = comandoSql, CommandTimeout = 0 };
            sqlComm.ExecuteNonQuery();
            */

        }
    }
}