i want to protect my web server for secure control
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 170 }; // ip in lan (that's what you need to use in your browser. ("192.168.1.178")
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(80); //server port
String readString;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
pinMode(4, OUTPUT);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
// Create a client connection
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
Serial.println(readString); //print to serial monitor for debuging
client.println("HTTP/1.1 200 OK"); //send new page
client.println("Content-Type: text/html");
client.println();
client.println("");
client.println("");
client.println("");
client.println("");
client.println("USER NAME:
");
client.println("PASSWORD:
");
client.println("");
client.println("");
if (readString.indexOf("firstname") =='rahul')
if (readString.indexOf("pwd")=='rdr')
{
client.println("
second year project
");client.println("
survilance robo
");client.println("
");
client.println("
");
client.println("
Arduino with Ethernet Shield
");client.println("
");
client.println("<a href="/?button1on"">Turn On LED");
client.println("<a href="/?button1off"">Turn Off LED
");
client.println("
");
client.println("
");
client.println("
Created by Rahul . available at rdr.rahul7@gmail.com
");client.println("
");
}
client.println("");
client.println("");
delay(1);
//stopping client
client.stop();
//controls the Arduino if you press the buttons
if (readString.indexOf("?button1on") >0){
digitalWrite(4, HIGH);
}
if (readString.indexOf("?button1off") >0){
digitalWrite(4, LOW);
}
//clearing string for next read
readString="";
}
}
}
}
}
this is my code ,
help me with my look on it
and itz important that i am new to ethernet shield