from socket import *        # get socket constructor and constants
myHost = ''                 # server machine, '' means local host
myPort = 8888               # listen on a non-reserved port number

if len(myHost) > 0:
    print "Server gestartet auf ", myHost,', Port: ',str(myPort)
else: #
    print "Server gestartet auf localhost, Port: ",str(myPort)

sock = socket(AF_INET, SOCK_STREAM)  # make a TCP socket object
sock.bind((myHost, myPort))          # bind it to server port number
sock.listen(5)                       # allow upto 5 pending connects

try:
    while 1:
        connection, address = sock.accept()
        print 'Server verbunden mit', address,
        ip_nr = address[0]  # Client-IP
        data = connection.recv(1024)
        if data:  ##
            print str(data), 'from', address
            connection.sendall('Password: ')
            data = connection.recv(1024)
            if data:  ##
                pd = str(data)
                if pd == "tunix":
                    print "Hallo, " +  str(ip_nr) 
                    connection.sendall('Hallo, ' + str(ip_nr) )
                    while 1:
                        data = connection.recv(1024)
                        if data:  ##
                            print '<' + str(data) + '> from', address
                            connection.sendall('Echo <' + str(data) + '> von ' + str(ip_nr) )
                            # connection.sendall(data)
                        else:
                            print "Verbindung beendet!"
                            break                    
                else:
                    connection.sendall('Sorry, wrong place, wrong time, . . .' )
                    print "Verbindung beendet!"
finally:
    sock.close()