C# server in window and C client in linux

my client program is

#define SERVERPORT 1234        

int main ( )                      
{
        int sockfd, n;
        struct sockaddr_in serv_addr;
        struct hostent *serverINFO;
        
        char buffer[256];
        char hostname[1024];
        //struct hostent* h;
        gethostname(hostname, sizeof(hostname));
        serverINFO = gethostbyname(hostname);
        
        if(serverINFO == NULL)
        {
                printf("Problem interpreting host\n");
                return 1;  
        }
        sockfd = socket(AF_INET, SOCK_STREAM, 0);
        
        if (sockfd < 0)
                {
                        printf("Cannot create socket\n");
                        return 1;
                }
        inet_pton(AF_INET, "192.168.0.1",&(serv_addr.sin_addr));
          serv_addr.sin_port = htons (SERVERPORT);
        
        if(connect(sockfd, (struct sockaddr *)&serv_addr, sizeof (serv_addr)) < 0) 
                {
                        printf("Cannot connect\n");
                        return 1;
                }
        else
                printf("Connected\n");
         }

my server program is

namespace server_window
{
    public partial class Form1 : Form
    {
         static TcpListener tcpListener = new TcpListener(IPAddress.Parse("192.168.0.2"), 1234);
        TcpClient socketForClient;
       EndPoint ep;
       public Form1()
        {
            InitializeComponent();
            BW_Connection.RunWorkerAsync();
        }
      
        private void BW_Connection_DoWork(object sender, DoWorkEventArgs e)
        {
            tcpListener.Start();
            socketForClient = tcpListener.AcceptTcpClient();
            ep = socketForClient.Client.RemoteEndPoint;
              this.Invoke(new MethodInvoker(delegate { TB_text.Text = "Client connected..."; }));
        }
         private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            socketForClient.Close();
            
        }

    }
}