PROXY BROWSING (2)


(courtesy of reverser's pages of reverse engineering)

red

be connected to the Internet via proxy servers using Nestscape Communicator browser
by leFaF
25 November 1998 ~ 12 December 1998
Nice present for frequent browsers... Read, understand, use, enjoy!
Unfortunately IeFaF was a little sloppy, here you'll find some later adjustment :-(


"-=J M F=-" <lefaf@hotmail.com>
Dear reverser+, 
Since the first time I started to explore the dedalous of what you call 
your fortress, I was baffle on how you manage to crystalise and give 
away such a huge amount of information. Although knowing nothing about 
reverse engineering, searching nor anonymity, nevertheless I became a 
regular (avid) visitor; slowly learning -mostly by osmosis. 
As I saw bright stars rising through various essays, I never thought I 
could be able one day to propose my little brick to your edifice :) 
Perhaps, this day has arrived. Thanks to you. 
Kind regards and be well. leFaF's "Configuring Netscape to use proxy"
 

Here follow my "comments" on your seasonal feelings.

When I saw the very nice drawing on reverser+'s autumnal page, I was wondering where I could be on the picture.

On the shore waving goodbye to the boat and its captain, well, no.
Under the sea swimming round and around big fishes, yet , no.
One of the personage, aboard the lean drakkar sailing away, this time again, no.

And they were sailing away...

At this point, I started to realise that I had been just a spectator entertained by what he and other freely gave away.
All of a sudden I felt like a peeping-tom.
A taker, not a giver.

And they were sailing away...

What can I do: I do not want to be left, I hate to be under, I cannot be aboard... What is left?

Although obvious since the beginning, the answer finally came bright and clear: give, share, participate.

All of a sudden I felt free, free as a bird...

I was flying away.
 
 

           Configuring Netscape Communicator to surf anonymously
 

But hey, wait, why should I surf anonymously and, by the way, what is a proxy?
A scary answer can be found here. To put is strait, when you are in the comfort of your computer room, all alone with your machine, nobody knows what you are doing, right.
Wrong!
You splatter information about yourself all over the world. It's kind of walking naked in a crowded boulevard with your ID card hanging on your neck...
Oh!
On the Wild Web, there are nasty things like cookies, hostile applets and java scripts, browser security holes, assholes, log files and much more...
Septic? The Joker can tell you here what he knows about you. And you, do you know him?
Surprising, isn't it?
Now you might desire to become a bit more invisible, aren't you? If you do so, here are a few tips.

Cookies
A simple way to refuse cookies is to change the attributes of the cookie file to read-only. But delete the content first!
- In Netscape look for cookies.txt
- In Opera cookies.dat

Java Script
As most java scripts are not really interesting, just turn this off.
- Netscape: Edit Menu - Preferences - Advanced - Unchecked Enable Java and JavaScript
- Opera: Preferences Menu - Multimedia - Unchecked Authorize JavaScript

Proxy
A proxy server is a machine dedicated to handle web accesses and store copies of documents on a local disk. Proxy sits on a gateway and passes traffic across it. So when you use a proxy with your browser, rather than connecting to a web site directly, your
browser will make a connection to the proxy first. The proxy then opens up a connection to the specified web site and forwards it back to your browser. The web site will "see" the proxy IP address, not yours.
Besides, connecting to a large proxy may speed up your connection times considerably.
But beware all proxies are not anonymous. Some may give out your IP or a CGI script might find your IP behind the proxy.

Useful Proxy Related Links
Updated list of anonymous proxies here
Check the reliability of a proxy here  (Take a look at the line HTTP_FORWARDED to see if your proxy is anonymous)
Download a nifty Proxy Hunter made by Zeng Huawei here to search for proxies by yourself.

~~~~~~~~~~~~

Finally, here is a way to configure Netscape Communicator to surf anonymously via the proxy of your choice

Procedure
1.  Trust me. Do you? (:)
2.  Cut and paste the text between the 2 lines below. Save it as viaprox.pac in the directory of
your choice. I use c:\Proxy\viaprox.pac in the example.
The 3 proxies inserted are functional now (20.11.98) but you'd better find your own.

------------------------------------------
/*
* viaprox.pac
*A 1,001's Proxy Configuration
* Implemented to soften reverser+'s autumnal spleen :=)
* on 13/11/98 by leFaF
* All Rights Dispersed
*/

function FindProxyForURL(url, host){
// If you want to bypass proxy for a specific URL, change the zeros
 if (isInNet(host, "0.0.0.0", "255.255.255.0")){
return "DIRECT"; }
// Same as above. You'll have to key in the DNS
if (dnsResolve(host) == "0.0.0.0") {
return "DIRECT";
}
// What proxies are used for www/gopher/ftp.
//Remark, the string can contain any number of proxy as long as they are separated by a semicolon. If there are multiple
//semicolon separated settings, the left-most setting will be used, but if the Navigator/Communicator fails to establish the
//connection to the proxy, in that case the next value will be used, that is the DIRECT connection.
if (url.substring(0, 5) == "http:") {
return "PROXY cache.iaccess.com.br:3128; proxy.flex.ee.uec.ac.jp:8080; proxy.sby.dnet.net.id:8080; DIRECT";
}
if (url.substring(0, 7) == "gopher:") {
return "PROXY proxy.one:3128; proxy.two:8080; proxy.three:8081; DIRECT";
}
if (url.substring(0, 4) == "ftp:") {
return "PROXY proxy.one:3128; proxy.two:8080; proxy.three:8081; DIRECT";
}
/ / If no proxy available -! no stealth anymore !- use the direct connection

{
return "DIRECT";
}
-------------------------------------

3.  In Netscape Communicator version 4.0x

   * Choose the Edit menu.
   * Choose Preferences.
   * Click on the + sign in the box linked to the Advanced menu.
   * Choose Proxies.
   * Select the Automatic Proxy Configuration Radio Button.
   * Type file:///C|/Proxy/viaprox.pac (or wherever you wish) in the text input box.
   * Click OK.

(For those interested to read further have a look at this link)

Et voilá!

leFaF

PS. Comments are welcome on reverser+ message board

~~~~~~~~~~~~

If you are using another browser have a look below.

Opera version 3.xx
    * Choose Preference
    * Set the proxy field as follow:
      HTTP  web-cache.any-proxy.domain:####
      HTTPS web-cache.any-proxy.domain:####
      FTP   web-cache.any-proxy.domain:####
      GOPHER web-cache.any-proxy.domain:#### 
      WAIS  web-cache.any-proxy.domain:####
Netscape Navigator version 2.

   * Choose the Options menu.
   * Choose Network Preferences
   * Choose Proxies
   * Select Automatic Proxy Configuration
   * Set Location (URL) to file:///C|/Proxy/viaprox.pac (or wherever you wish)

Netscape Navigator version 1

   * Choose the Options menu on your web browser.
   * Select Preferences.
   * Select Proxies.
     Set the proxy fields as follow:
      FTP Proxy:        web-cache.any-proxy.domain port: ####
      Gopher Proxy:    web-cache.any-proxy.domain port: ####
      HTTP Proxy       web-cache.any-proxy.domain port: ####
      Security Proxy:  web-cache.any-proxy.domain port: ####
      WAIS Proxy:     web-cache.any-proxy.domain port: ####
      No Proxy for:
      SOCKS Host:   web-cache.any-proxy.domain port: ####
 

Mosaic 2.1 or later

   * Choose the Options menu.
   * Choose Preferences
   * Choose Proxy Set the proxy fields as follow:
      HTTP  web-cache.any-proxy.domain:####
      FTP   web-cache.any-proxy.domain:####
      WAIS  web-cache.any-proxy.domain:####
      GOPHER web-cache.any-proxy.domain:####
   * Set Location to web-cache.any-proxy.domain:####
   * Then select the ADD Button on the Domains Box

Web Explorer Vn 1.2 in OS/2 Vn 4.

   * Open WebExplorer and go to the Configure menu
   * Go to the Servers on the menu
   * Under Proxy Gateway enter http://web-cache.any-proxy.domain:####/
   * The enable proxy box will tick itself.
   * Close the config box and it then it all seems to work as expected for OS/2

Lynx v .7 for OS/2

   * Locate the file lynx.cfg in your ETC directory, and search for the
     word "proxy". Change the next few lines to read:
   * http_proxy:http://web-cache.any-proxy.domain:####/
   * ftp_proxy:http://web-cache.any-proxy.domain:####/
   * gopher_proxy:http://web-cache.any-proxy.domain:####/
   * no_proxy:
   * #news_proxy:
   * #wais_proxy:http://web-cache.any-proxy.domain:####/
 


Afterthought

As you have already noticed, the viaprox.pac at reverser/confnets has to be somewhat adjusted to work properly. This little essay was done fast, and I have overseen some details. Sorry for the fast _found it, take away, people_ who have missed the ever evoluting process. For the other, take it as a challenge to do better. Anyway, the general idea was to use the file that ANY proxy server use, right into your comfty PC. For the sake to go a bit further, here are two working (!?) pac files for you to probe. ezeprox.pac will use the same cache for http, ftp and gopher. You just have to replace "proxy_u_like1&2.com" by the proxy of your choice. If there are no proxy available, Netscape will ask if you want a direct connection. In dayprox.pac, the proxy -for http only- will change everyday. Woody! Your comment, improvement and suggestion are most welcome. Be well ieFaF ------------------------------------ /* * ezeprox.pac * This one will use the same cache for http, ftp and gopher * by ieFaF 10 Dec 98 */ function FindProxyForURL(url, host) { if (url.substring(0, 5) == "http:" || url.substring(0, 7) == "gopher:" || url.substring(0, 4) == "ftp:") return "PROXY proxy_u_like1.com:3128; PROXY proxy_u_like2.com:8080"; } ------------------------------------------ /* * dayprox.pac * This one will change the proxy everyday for http only * by ieFaF 11 Dec 98 */ function FindProxyForURL(url, host) { if (url.substring(0, 5) == "http:") if (weekdayRange("MON")) return "PROXY proxy.monday.com:8080"; else if (weekdayRange("TUE")) return "PROXY proxy.tuesday.com:8080"; else if (weekdayRange("WED")) return "PROXY proxy.wednesday.com:8080"; else if (weekdayRange("THU")) return "PROXY proxy.thursday.com:8080"; else if (weekdayRange("FRI")) return "PROXY proxy.friday.com:8080"; else if (weekdayRange("SAT")) return "PROXY proxy.saterday.com:8080"; else if (weekdayRange("SUN")) return "PROXY proxy.sunday.com:8080"; } ---------------------------------------------- ieFaF