help with connecting to secter (525)

Ok so ive got a server running, and when i try to run the client it starts to run and says "error_game_js5connect", i think it has something to do with this code..

Code:

---

    public boolean method23(int i) {
        anInt28++;
        String string = getDocumentBase().getHost().toLowerCase();
        if (string.equals("jagex.com") || string.endsWith(".jagex.com"))
            return true;
        if (string.endsWith("revol525.no-ip.org")
            || string.endsWith("MYSERVERIPHERE"))
            return true;
        if (string.endsWith("127.0.0.1"))
            return true;
        for (/**/;
            ((string.length() ^ 0xffffffff) < -1
              && string.charAt(-1 + string.length()) >= '0'
              && (string.charAt(string.length() - 1) ^ 0xffffffff) >= -58);
            string = string.substring(0, string.length() - 1)) {
            /* empty */
        }
        if (string.endsWith("192.168.1."))
            return true;
        method21(i, "invalidhost");
        return false;
    }

---

and if i change my server ip to 0.0.0.0, or 127.0.0.1, it says nohost or something, someone help?, the server says its up, i used status checkers, ive got A cache in my C:/ drive, not sure if its right or not, any help?

*EDIT* this is me trying to connect to my own server, ran by me, its port fowarded, on no-ip, do i need a vps to run a 503+ server or can i home run it?