Freerk <
[email protected]> (write
in English, German or Spanish),
last
updated 2003-12-12
A tutorial on how to bypass Internet Censorship using Proxies, Shells, JAP e.t.c.
Different ways to beat the filtering in schools, countries or companies (blocked
ports e.t.c).
This is the original and so newer than the translations because
I'm still working on it.
In the last 10 years the Internet grew very, very fast. It is a bunch of thousands
of little networks put together. Billion computers are connected and it is
basically
not controlled or even owned by a government or company. There are no laws,
everybody can put his webpages online which can be accessed by everybody on
the world who is sitting in front of a computer with Internet access. I believe
that this can and will change the world as we know it today.
But there are several governments who think that this unlimited access to information
is dangerous for their citizens. These are for example China, Saudi Arabia,
Bahrain, Cuba, Jordan, Tunisia, Burma, Singapore, Uzbekistan,
Yemen, Kuwait, Vietnam, Syria, Iran, United Arab Emirates and parts of Africa.
and even in countries like Australia, Switzerland and in some parts of Germany
they censor websites. This ranks from a very easy to circumvent DNS blocking
of only 2 Nazi sites in parts
of
Germany
to
a government
office
with
30.000
employees
only
working
in blocking thousands of websites, services and ports in China.
Though the blocking methods are different there are also different ways to bypass
them. I will try to show you how to access the website of Amnesty International,
BBC, Google and other blocked sites in your country. I made this website in
very basic HTML, so that you can even view it with a very old computer. Please
share this information, link the site, copy it, mirror it, print it (I didn't
"hide" any links, so that no link is lost when you print it) and teach
your friends and relatives!
More info: http://www.wikipedia.org/wiki/Censorship_in_cyberspace
Well, I'm living in Germany, which is not very famous for it's censoring.
But the local government from one of the 16 German states (NRW) tries to introduce
censorship by blocking 2 US Nazi sites. Sure, I really don't like those guys
but in my opinion no government or even a system administrator got the right
to choose which information a individual have access to. What websites are
next? Who chooses which websites will be blocked? Additionally, my school
blocks some
websites and so I became interesting in this topic.
As you are reading this you actually found this file somewhere.
The most updated version you can get here:
European mirror: http://www.zensur.freerk.com/
-
(Lambdanet - Erfurt, Germany)
American mirror: http://nocensor.citizenlab.org/
- (University of Toronto - Toronto, Canada)
Asian/Pacific mirror: http://blocks.orcon.net.nz/ -
(Orcon ISP - Auckland, New Zealand)
SSL mirror: https://secure.sslpowered.com/bpass/
(Netfirms, Toronto, Canada) and https://ssl-account.com/zensur.freerk.com/
Dynamic IP mirror: http://maybe-yours.dyndns.org/ (please email
me!)
eMail autoresponder: [email protected]
(just send an empty email, you will instantly get this text as plain HTML
in return)
Google Cache: http://www.google.com/search?q=cache:zensur.freerk.com/
- (maybe some days old)
Yahoo Cache: http://216.109.117.135/search/cache?url=blocks.orcon.net.nz/ -
(powered by Google)
Permission is hereby granted, free of charge, to any person obtaining
a copy of this document,
to deal with this document without restriction, including without limitation
the rights to use, copy, modify, translate, merge, publish, distribute,
and/or sell copies of the document, and to permit persons to whom the document
is furnished
to do so, provided that the author (Freerk Ohling) and at least two mirror
server of the original text (see: 1.3 How to get this file) appear in all
copies
of the document.
Basicaly this means that you can do anything with this text as long as you
mention my name and a way to obtain this original file. First I wanted to
publish this paper under the GNU Free Documentation License (http://www.gnu.org/licenses/fdl.html)
but I think the licence is to restrictive and complicated (see also: Why
You Shouldn't Use the GNU FDL - http://home.twcny.rr.com/nerode/neroden/fdl.html).
So I made up my own one based on the X11 licence (http://www.x.org/Downloads_terms.html).
You have to choose to bypass the Internet censorship
or not. I only show you how to do it, I can't take any responsibility. In several
censor countries you will go to jail if they catch you, in a lot of companies
you will get fired and some schools will ban you.
Of course the censors not only block Internet traffic, they are also looking
at it (in countries/companies with a little Internet population) and try to
find out who is bypassing their firewall how. An easy way to
find out who (and how) is bypassing the firewall is by just looking for some
identicators
in the logfiles:
- Right after the Internet connection is established the user
is connecting to only one server and remains connected to it all the time
he's online.
- What a user do right after he gets an "access denied"
message from his censor. (open a special website, go to a chatroom, connect
to a special server...)
Try to avoid getting caught this way!
More infos: http://www.peacefire.org/circumventor/list-of-possible-weaknesses.html
http://peek-a-booty.org/pbhtml/downloads/ResponseToLopwistcic.htm
There are many different solutions to censor Internet traffic.
Sometimes there are 2 or more combined. Please write me to [email protected]
which blocking methods are used in your country, which ISP are you using and
the ways that work for you to bypass it, it would be very useful for other
users!
More info: http://www.wikipedia.org/wiki/Censorship_in_cyberspace
This is used for example from some German providers. It is a very cheap and
easy censoring method and the same is true for bypassing it. First, I will
explain
what the Domain Name System is: Every computer on the
Internet has an unique address, a little bit like a telephone number. These
are 4 numbers
from 0 to 255 separated with a dot. For example: 62.141.48.209 is the IP address
for www.freerk.com. Because of remembering such a number is very difficult,
the DNS was invented. This service maps an URL to it's IP address. If you type
www.freerk.com into your browser, the request is send to the DNS-server that
was automatically given to you by your ISP on dialing into the Internet. A
lot of addresses are already cached, so the DNS-server sends the IP address
for the
URL back to you. If the DNS-server has no cached information on the site requested
by you, he asks on of the 13 root servers, which know all addresses. If the
DNS-server from your provider is censoring, he just refuse to send you the
real IP-address. He sends you nothing or an IP from a "sorry" website.
More info: http://www.wikipedia.org/wiki/DNS
You have to specify a proxy server in your 'Internet Explorer' settings in
order to get a connection to the Internet. Sometimes, the ISP is using a transparent
proxy. With these you can't see easily if there is a proxy or not. Every request
you send to or receive from the Internet is checked at this server and redirected
to you (well, or not...).
This means that all Internet traffic goes through the servers of the censor,
who is scanning the content for 'bad words'. This dynamic filtering is true
for most filters in schools, libraries and companies. If the site contains
bad words it is blocked. The person who is offering the blocked information
could
prevent the censoring by "hide" the content inside of images. For
the user there is almost no difference, but it is difficult for a computer
program
to "read" the text inside an image. Also SSL encrypted traffic (a
URL starting with https://...) can't be scanned easily. You can test which
keywords
are blocked on your connection on http://www.zensur.freerk.com/kword/
there you can enter the keyword(s) you want to test an click on "send"
when you get the message "You entered [your word here]" in return
everything is fine, but if you get an error message you know which words are
blocked.
Ports are like doors for a special service to a server or PC. They rank
from 0 to 65535. The standard ports are from 0 to 1024, these are the well
known
ports. The official list you can get under http://www.iana.org/assignments/port-numbers and a description on http://www.wikipedia.org/wiki/Port_(computing).
If a censor blocks a port, every traffic on this port is dropped, so its
useless
for you. Most censors blocks the ports 80, 1080, 3128 and 8080, because these
are the common proxy ports. Because all of the proxies on common ports are
useless for you, you have to find proxies that are listening on an uncommon
port. These are very difficult to find.
You can easily test which ports are blocked on your connection. Just open
the DOS-prompt, type telnet login.icq.com 80 and hit enter. The number
is the port you want to test. If you get some wired symbols in return everything
is ok, if it says "timeout" or something similar, that port is blocked
by your ISP. Here are the most important ports for us:
20+21 - FTP (file transfer)
22 - SSH (secure remote access)
23 - telnet (remote access) and also Wingates (special kind of proxies)
25 - SMTP (send email)
53 - DNS (resolves an URL to an IP)
80 - HTTP (normal web browsing) and also a proxy
110 - POP3 (receive email)
443 - SSL (secure HTTPS connections)
1080 - Socks proxy
3128 - Squid proxy
8000 - Junkbuster proxy
8080 - a proxy
Normally the censorship is implemented on servers from the ISP or government,
but in some schools, private homes and some companies the blocking software
is installed on every PC.
More info: http://www.peacefire.org/
http://www.wikipedia.org/wiki/Censorware
http://www.cexx.org/censware.htm
http://www.epinions.com/cmsw-Kids-Topics-2
http://www.securiteam.com/securityreviews...assed.html
More info: http://www.netnanny.com/index.html
http://peacefire.org/censorware/Net_Nanny/
More info: http://www.cybersitter.com/
http://www.spectacle.org/alert/peace.html
http://www.peacefire.org/censorware/CYBERsitter/
More info: http://www.aol.com/info/parentcontrol.html
More info: http://www.cyberpatrol.com/
http://www.peacefire.org/censorware/Cyber_Patrol/
More info: http://www.surfcontrol.com/
http://peacefire.org/censorware/SurfWatch/
This are programs that are mostly installed on servers in schools, libraries,
companies or countries with a little Internet population.
Bess is a proxy filter that is often used in schools/universities and companies.
It can easily bypassed with Webproxies.
More info: http://www.n2h2.com/products/bess_home.php
http://www.peacefire.org/censorware/BESS/
It's a Open Source Webfilter. Free for non-commercial use and thus it is
widely spread in universities, schools and libraries. It works as a Proxy
with URL and keyword filtering (and also with the PICS-Standard). It's often
used on a IPCop machine, however, the author from DansGuardian doesn't like
it.
More Info: http://dansguardian.org/
More Info: http://www.websense.com/
http://www.peacefire.org/censorware/WebSENSE/
More Info: http://www.webwasher.com/
More Info: http://www.securecomputing.com/index.cfm?skey=85
http://www.peacefire.org/censorware/SmartFilter/
More Info: http://www.squidguard.org/
Most Internet filters works with a blacklist, which means that access to all
sites is allowed, except some special sites (well, sometimes there are
a lot exceptions...). A whitelist works the other way around: Access to all
sites is blocked, except some special ones. For a normal ISP it is almost
impossible to offer, because the Internet is nearly worthless. The whitelist
scheme is used by free Internet terminals that are sponsored by a company which
allows users the free access to their e-commerce site. This filter scheme is
the most difficult to circumvent.
Some time ago, there was a German ISP who had a completely free 0800-dial in
number. Once you dialed in, you only could surf to amazon.de and about 10 more
e-commerce sites. But you could also connect to the other customers of the ISP.
So somebody with a flatrate connected to both his normal ISP and the 0800-free
ISP and set up a proxy. So all the users of the free ISP could use that proxy
to connect to other sites.
More info: http://www.wikipedia.org/wiki/White_list
Since you can't directly access a server that is blocked you have to send the
request to a non blocked server which redirects the traffic to the real site
you want to visit. There are different types of these "gatekeepers".
Well, it's as easy as it sounds: Just change your Internet Service
Provider! For example only in 'Nordrhein-Westfalen' (a state of Germany)
there is a censoring firewall, you can just subscribe to an ISP outside that
state. But normally the censorship counts for all the country. One possibility
is to try out an ISP outside the country. That costs a lot, but that way you
do have a normal Internet access and don't have to worry about getting around
filters. This could be a normal dialup provider in an neighbor country or
better
a 2-way Internet access via satellite like http://www.europeonline.com/
http://registrierung.tiscali.de/produkte/1400_satellit.php,
http://www.gilat.de/, http://www.hns.com/,
http://www.vsatnet.com/, http://www.starband.com/,
http://www.wildblue.com/, http://www.skycasters.com/,
http://www.directduo.com/, http://www.orbitsat.com/,
http://www.ottawaonline.com/ and
so on, just search with a search engine for '2-way Internet via satellite
[your
country or neighbor country]' or something like that.
Normally, you automatically would use the DNS-server of your ISP to resolve
domain names like www.freerk.com to 62.141.48.209. Internally, only these
IP-addresses are used to send/receive data in the Internet. If your DNS-server
is censoring, you simply can use another DNS-server. Under Windows, just right-click
in your system panel on the 'network' icon and select properties of the TCP/IP-protocol.
In Linux you have to edit the '/etc/resolv.conf' file. Use the server that
is (virtual) your nearest. If you want to setup your own DNS-server use Bind
(http://www.isc.org/products/BIND/).
The list of the 13 official root servers is located here: ftp://ftp.rs.internic.net/domain/named.root
for redundancy it would be good to ad the alternative root servers located
in Europe from ORSN: ftp://ftp.orsn.org/orsn/orsn.hint.
Non censoring DNS-Servers:
dns2.de.net - 194.246.96.49 (Frankfurt, Germany)
ns1.de.eu.orsn.net - 217.146.139.5 (Hildesheim, Germany)
resolver.netteam.de - 193.155.207.61 (Alfter-Impekoven, Germany)
sunic.sunet.se - 192.36.125.2 (Stockholm, Sweden)
master.ns.dns.be - 193.109.126.140 (Leuven, Belgium)
ns1.lu.eu.orsn.net - 195.206.104.98 (Belvaux, Luxembourg)
merapi.switch.ch - 130.59.211.10 (Zurich, Switzerland)
prades.cesca.es - 192.94.163.152 (Barcelona, Spain)
michael.vatican.va - 212.77.0.2 (Vatican City, Italy)
dns.inria.fr - 193.51.208.13 (Nice, France)
ns0.ja.net - 128.86.1.20 (London, UK)
nic.aix.gr - 195.130.89.210 (Athens, Greece)
ns.ati.tn - 193.95.66.10 (Tunis, Tunisia)
ns1.relcom.ru - 193.125.152.3 (Moscow, Russia)
trantor.umd.edu - 128.8.10.14 (College Park, MD, USA)
ns1.berkeley.edu - 128.32.136.9 (Berkeley, CA, USA)
merle.cira.ca - 64.26.149.98 (Ottawa, Canada)
ns2.dns.br - 200.19.119.99 (Sao Paulo, Brasil)
ns2.gisc.cl - 200.10.237.14 (Santiago, Chile)
ns.uvg.edu.gt - 168.234.68.2 (Guatemala, Guatemala)
ns1.retina.ar - 200.10.202.3 (Buenos Aires, Argentina)
ns.unam.mx - 132.248.253.1 (Mexico City, Mexico)
ns.wide.ad.jp - 203.178.136.63 (Osaka, Japan)
ns.twnic.net - 192.83.166.11 (Taipei, Taiwan)
ns3.dns.net.nz - 203.97.8.250 (Wellington, New Zealand)
box2.aunic.net - 203.202.150.20 (Melbourne, Australia)
It's also possible to act as a manual DNS server by yourself. Just use the
ping or traceroute service on a non censoring machine to get the IP of your
desired server. Then use the IP instead of the URL in your browser. You will
always get an IP, but it won't work every time to access the website via the
IP, because a lot of webhosters host up to 500 or more websites on one server
with one IP. But it will work fine with bigger websites.
http://195.193.168.164/ - Rotterdam,
Netherlands (JAVA VISUALROUTE)
https://www.velia.net/tools/traceroute.php
- Hanau, Germany (HTTPS encrypted)
http://www.traceroute.org/ - About
1000 public ping/traceroute gateways sorted by country
More info: http://www.wikipedia.org/wiki/DNS
http://www.wikipedia.org/wiki/Root_nameserver
You can put a proxy server between your Internet connection and the site you
want to visit. You send your request for a special website to that proxy server,
which request the page from the Internet and deliver it to you. Normally, those
servers cache the requested pages, so that on the next request he can deliver
the page directly from the cache. That would be faster and cheaper. We use those
servers to bypass censorship. For the eyes/computers of our ISP/Government we
are only connecting to the proxy, they can't easily see, that we are connecting
to a "bad site". But sometimes the standard proxy ports (80, 1080,
3128 and 8080) are blocked. In that case you have to use the proxies that are
listening on an uncommon port.
More info: http://www.wikipedia.org/wiki/Proxy_server
Standard Proxies you can find everywhere on the net. Almost every provider
offer a proxy for their customers. Here are a few, its in the widely spread "hostname:port"
format. These proxies are mostly not anonymous!
pdns.nd-shokusan.co.jp:80
proxy.ia2.marketscore.com:80
proxy.or3.marketscore.com:80
ce420f8a.gw209.dsl.airmail.net:80
www-proxy.HB1.srv.t-online.de:80
gas90.gas.cz:3128
kupl1.ittc.ku.edu:3128
mail.jobclub-ps.de:3128
mail.libreriaregional.com:3128
mail.pegasus-sewing.com.hk:3128
pl1.cs.utk.edu:3128
proxy.telcel.net.ve:3128
vn1.cse.wustl.edu:3128
Planetlab CoDeeN Project (http://codeen.cs.princeton.edu/ -
Very fast, you can also use them on port 3127. No POST allowed, so you only
can
view/download webpages and use simple forms that
use the GET
method
(like search engines) but you can not use bigger forms that use POST (like
buy stuff at Amazon)).
planlab1.cs.caltech.edu:3128
planetlab2.cse.msu.edu:3128
planetlab2.cs.purdue.edu:3128
planetlab2.cs.nwu.edu:3128
planetlab1.ucsd.edu:3128
planetlab-1.Stanford.EDU:3128
planetlab1.lcs.mit.edu:3128
planetlab1.eecs.umich.edu:3128
planetlab1.csres.utexas.edu:3128
planetlab1.cs.wayne.edu:3128
planetlab1.cs.Virginia.EDU:3128
planetlab1.cs.umass.edu:3128
planetlab1.cs.uiuc.edu:3128
Planetlab1.CS.UCLA.EDU:3128
planetlab1.cs.ubc.ca:3128
planetlab-1.CS.Princeton.EDU:3128
planetlab1.cs.duke.edu:3128
planetlab1.cs.cornell.edu:3128
planetlab1.cs.arizona.edu:3128
planetlab1.comet.columbia.edu:3128
PLANETLAB-1.CMCL.CS.CMU.EDU:3128
planetlab1.cis.upenn.edu:3128
planetlab-02.bu.edu:3128
planetlab01.cs.washington.edu:3128
planet2.cs.rochester.edu:3128
planet1.scs.cs.nyu.edu:3128
planet1.cs.ucsb.edu:3128
planet1.cc.gt.atl.ga.us:3128
lefthand.eecs.harvard.edu:3128
Due to the fact that several censors block the common proxy ports (80, 1080,
3128 and 8080) to prevent circumvention you have to use proxies that are listening
on a uncommon port. For example 8000 for the Junkbuster proxy or 6588 for the
AnalogX proxy. You get a weekly updated list of Proxies that are listening
on
a non standard port here: http://www.web.freerk.com/proxylist.htm
or via eMail autoresponder at [email protected].
More info: http://www.ufasoft.com/socks/
http://proxylabs.netwu.com/
More info: http://www.gcd.org/sengoku/stone/
http://www.junkbusters.com/ijb.html
http://www.boutell.com/rinetd/
JAP is an free and open source anonymity tool invented by a German university.
It sends your traffic encrypted through different mixes, so that absolutely
nobody, not even the owner of on of the mixes know who is accessing which
site. This is also on of the best tools to circumvent censorship. Just follow
the installation instructions on http://anon.inf.tu-dresden.de/index_en.html
or http://www.anon-online.org/index_en.html on installing the Java client
(available for Windows, Unix, Linux, OS/2, Macintosh and others). Here is
a list of the included servers and on which
port they are connecting to:
The InfoService - infoservice.inf.tu-dresden.de:6543
Dresden-Dresden - mix.inf.tu-dresden.de:6544
Dresden-ULD -
mix.inf.tu-dresden.de:26544
New
York-Berlin-Dresden - class25.scs.cs.nyu.edu:6544
Regensburg-HU/IWI - 132.199.134.2:3000
Not working at the moment:
Luebeck-Berlin-Dresden -
fddi-passat.mesh.de:6544
Dresden-Luebeck - xx:9544
http://www.htthost.com/
http://proxytools.sourceforge.net/
http://www.http-tunnel.com/
http://www.nocrew.org/software/httptunnel.html
http://www.infoanarchy.org/wiki/wiki.pl?Httptunnel
Hopster is a commercial tool to circumvent firewalls in schools, companies
e.t.c. The free version is only limited to a 4kb/s transfer rate (speed of
a 56k modem). Just download the <1 MB Setup file and install it. It will
test your connection/firewall and than configure everything automatically.
Unlimited version costs 2 or 5 dollar a month.
More info: http://www.hopster.com/
More info: http://www.deerfield.com/products/wingate/
http://www.wikipedia.org/wiki/Wingate
More info: http://www.wikipedia.org/wiki/Unix_shell
http://www.chiark.greenend.org.uk/~sgtatham/putty/
http://directory.google.com/Top/Compute...rs/Unix_Shell_Providers/
http://www.panix.com/shell.html
http://www.shellux.net/
This are services which you dial with a normal telephone. Then you saw the
website you want to visit and the operator/computer voice is reading the
content to you.
More info: http://w2p.odem.org/ (a german
Satire project. It is not working!)
http://www.internetspeech.com/
http://www.ecommercetimes.com/perl/story/3380.html
Webproxies are CGI-scripts that you call with your browser and open a different
URL (Internetaddress) with. So your firewall thinks you are only connecting
to
the server with the CGI-script. The addresses under 4.5.4
are not really meant as proxies. They act as translators, html-checkers or
as a web archive. You can use them as a kind of proxy anyway. These webproxies
are
a good thing for "quick 'n dirty" bypassing. You don't have to configure
your browser or something, but it's kind of slow and won't work with all webpages.
Only the proxies that are going over a secure connection can be used for phrase
filtering, but the others a perfect for URL/IP filtering. Use them in your
school,
company or library when you have no privileges to install/change something
on the machine. These links points to google.de because the site is very small,
useful, always on and does not contain the ".com" extension of DOS-Files
that are filtered by some proxies. If you do have webspace with cgi ability
you can download the CGIProxy from James Marshall and install it on that webspace
(there is a easy installer which does everything for you: http://install.xav.com/).
Or you can install it on your PC at home and access it at work. How to do
so you can read here: http://www.peacefire.org/circumventor/simple-circumventor-instructions.html.
To find new working proxies search for "nph-proxy.cgi", "nph-proxy.pl",
"Start Using CGIProxy", "Start browsing through this CGI-based
proxy", "WARNING: Entering non-anonymous area" or something
like that with Google, Alltheweb, Wisenut or another search engine.
http://207.44.184.234/cgi-bin/cgiproxy/nph-proxy.pl/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://209.123.49.227/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://anon.free.anonymizer.com/http://www.web.freerk.com/c/ (Restricted
access, proxy version unknown)
http://www.free2.surffreedom.com/nph-free.cgi/000000A/http/www.web.freerk.com/c/ (Without
form, CGIProxy version unknown)
http://glass.ipe.tsukuba.ac.jp/~s011304/cgi/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0)
http://home.iitk.ac.in/student/mgoel/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
http://invis.free.anonymizer.com/http://www.web.freerk.com/c/ (Restricted
access, without form, proxy version unknown)
http://pasty.hypermart.net/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (without
images, CGIProxy 2.0.1)
http://proxy.drkangel.com/nph-index.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://student.mmu.edu.my/~v0111837/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (Without
form, CGIProxy 1.3.1)
http://www.a2zcomms.com/cgi-bin/proxy/nph-ghost.cgi/000000A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://www.a2zcomms.com/cgi-bin/proxy/nph-whipt.cgi/000000A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://www.anonsurf.de/cgi-bin/nph-asurf.cgi/000000A/http/www.web.freerk.com/c/ (Ads,
without images, proxy version unknown)
http://www.anonymization.net/1/1/A/http://www.web.freerk.com/c/ (Without
images, proxy version unknown)
http://www.anonymouse.ws/cgi-bin/anon-www_de.cgi/http://www.web.freerk.com/c/ (Ads,
without form, proxy version unknown)
http://www.bigate.com:8080/cgi-bin/bigate/b/k/k/[email protected]/c/ (Without
form, proxy version unknown)
http://www.delorie.com/web/purify.cgi?purity=html40l&url=http%3A%2F%2Fwww.web.freerk.com/c/ (Ads,
proxy version unknown)
http://www.drk7.jp/cgi-bin/proxy/nph-proxy.cgi/0000010A/http/www.web.freerk.com/c/ (Without
form, CGIProxy 2.0.1)
http://www.hound.de/cgi-bin/nph-hax0r.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
http://www.inchiki.net/cgi-bin/nph-multi.cgi/000010/http/www.web.freerk.com/c/ (Without
form, CGIProxy 1.3)
http://www.kniff.de/cgi-bin/cgiproxy/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (little
Ads, CGIProxy 2.0.1)
http://www.kosokoso.net/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://www.lib.drake.edu/cgi-bin/nph-proxy.cgi/000000A/3f942909http/www.web.freerk.com/c/
http://www.marzie.com/webtools/proxybuster/browse.asp?url=http://www.web.freerk.com/c/ (Without
images, without form, proxy version unknown)
http://www.mdsme.de/cgi-bin/nph-spinnerproxy.cgi/000010A/http/www.web.freerk.com/c/ (Ads,
CGIProxy version unknown)
http://www.poppe.us/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
http://www.ptzhack.net/cgi-bin/nph-browser.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
http://www.slysurf.com/cgiproxy/nph-proxy.pl/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
http://www.stud.tu-ilmenau.de/~kloth/cgi-bin/nph-proxy.cgi/000/http/www.web.freerk.com/c/ (Without
form, CGIProxy 1.3.1)
http://www.suckow-klan.de/cgi-bin/cgiproxy/nph-proxy.pl/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
http://www.thewatkinsonfamily.co.uk/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (Big
text, CGIProxy 1.5.1)
http://www.triumphpc.com/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (little
ads, CGIProxy 2.0.1)
http://www.valkaryn.net/browser/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (Ads,
without images, CGIProxy version unknown)
http://www.valkaryn.net/proxy/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (Ads,
without images, CGIProxy version unknown)
http://www.wgbh.org:81/cgi-bin/nph-algs.cgi/011111A/http/www.web.freerk.com/c/ (Without
images, CGIProxy version unknown)
http://www.zonet.gr.jp/~zo/cgi-bin/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/
(CGIProxy 2.0.1)
http://proxify.com/nph-proxy.cgi/000010A/687474702f7777772e676f6f676c652e64652f (Ads,
CGIProxy version unknown)
http://proxy.guardster.com/cgi-bin/nph-proxy.cgi/111101A/687474702f7777772e676f6f676c652e64652f (Ads,
CGIProxy version unknown)
http://www.proxyone.com/cgi-bin/nph-prxone.cgi/000000A/687474702f7777772e676f6f676c652e64652f (Ads,
without images, CGIProxy version unknown)
http://www.songtoday.com/cgi-bin/nph-proxy.cgi/000010A/687474702s7777772r676s6s676p652r64652s (Without
form, CGIProxy version unknown)
http://www.testplatz.de/a-proxy.cgi/000010A/687474703a2f2f7777772e676f6f676c652e64652f (Without
form, CGIProxy version unknown)
https://66.216.96.84/cgi-bin/nph-proxy.cgi/000010A/687474703a2f2f7777772e676f6f676c652e64652f (CGIProxy
2.0.1)
https://home.iitk.ac.in/student/mgoel/nph-proxy.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
https://nadaily.com/cgi-bin/nph-proxyb.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
https://nav.ebutechnologies.com/securing/free-anon.cgi/512/http://www.web.freerk.com/c/ (special
form, CGIProxy version unknown)
https://nhuanet.com/cgi-bin/nph-proxyb.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
https://proxify.com/nph-proxy.cgi/000010A/687474702f7777772e676f6f676c652e64652f (Ads,
CGIProxy version unknown)
https://vip.megaproxy.com/go/_mp_framed?http://www.web.freerk.com/c/ (Ads,
special form, CGIProxy version unknown)
https://www.citizenlab.org/cgi-bin/nph-groups.cgi/000010A/http/groups.yahoo.com/ (only
for yahoo.com, CGIProxy 2.0.1)
https://www.eopledaily.com/cgi-bin/nph-proxyb.cgi/000010A/http/www.web.freerk.com/c/ (CGIProxy
2.0.1)
https://www.eopledaily.com/dmirror/http/www.web.freerk.com/c/ (Without
form, version unknown)
https://www.perseus.tufts.edu/cgi-bin/nph-filter/000010AA/http/www.web.freerk.com/c/ (Without
images, without form, CGIProxy 1.5.1)
https://www.slysurf.com/cgiproxy/nph-proxy.pl/000010A/http/www.web.freerk.com/c/ (CGIProxy
version unknown)
http://213.96.53.150/cecid/cecid.php (Without
images, v0.71b)
http://arkadiy.myip.org/cecid/cecid.php (v0.7b)
http://ime.dinserver.nu/C/index.php (v0.7b)
http://online.nsrg-security.com/cecid/cecid.php (v0.7b)
http://www.balou.itarium.ch/pox/cecid.php (v0.7b)
http://www.blogs4god.com/cecid/index.php (v0.7b)
http://www.evilcanadian.com/get/cecid.php (v0.7b)
http://www.sn-serv.ath.cx/cecid07b/cecid.php (v0.7b)
http://www.xgraphs.com/php-bin/cecid.php (v0.7b)
http://www.zensur.freerk.com/nada/index.php (Without
images, v0.71b)
https://arkadiy.myip.org/cecid/cecid.php
(v0.7b)
https://ime.dinserver.nu/C/index.php (v0.7b)
https://ssl-account.com/zensur.freerk.com/nada/index.php (Without
images, v0.71b)
http://www.dejavu.org/ (Browser Emulator)
http://paranormal.about.com/gi/dynamic/offsite.htm?site=http%3A%2F%2Fwww.web.freerk.com/c/
http://bobby.cast.org/bobby/bobbyServlet?URL=http://www.web.freerk.com/c/
(Websitechecker)
http://www.vischeck.com/vischeck/vischeckURL.php
(Websitechecker)
http://spireproject.com/cgi-bin/footnote.pl?form=2&page=http://www.web.freerk.com/c/
(Footnote?)
http://cyber.law.harvard.edu/cite/annotate.cgi?view=http://www.web.freerk.com/c/
(kind of a footnote)
http://webwarper.net/ww/~GZ/www.web.freerk.com/c/?*
(Warper)
http://babelfish.altavista.com/
(Translator)
http://www.freetranslation.com/web.htm
(Translator)
http://translation.langenberg.com/
(Translator)
http://www.systransoft.com/ (Translator)
http://www.translate.ru/srvurl.asp?lang=de
(Translator)
http://translator.abacho.de/ (Translator)
http://www.t-mail.com/cgi-bin/tsail
(Translator)
http://www.google.com/language_tools?hl=de
(Translator)
http://tarjim.ajeeb.com/ajeeb/default.asp?lang=1
(Translator)
http://www.sdlintl.com/enterprise-systems/enterprise-translation-server/ets-demo/ets-demo-web-translator.htm
(Translator)
http://rinkworks.com/dialect/ (Fun-Translator)
http://www.brunching.com/drugslanger.html
(Fun-Translator)
http://www.pornolize.com/cgi-bin/pornolize2/pornolize2.cgi?lang=en&url=http%3A%2F%2Fwww.web.freerk.com/c/&submit=submit
(Fun-Translator)
http://unimut.fsk.uni-heidelberg.de/schwob.html
(Fun-Translator
http://www.google.com/ .de/
.fr/ (the Google Cache)
http://web.archive.org/web/*/http://www.web.freerk.com/c/
(Archive of the Internet since 1996)
http://archive.bibalex.org/web/*/http://www.web.freerk.com/c/ (a
mirror of archive.org)
http://www.marzie.com/webtools/proxybuster/ (get
files)
http://alltooflat.com/geeky/elgoog/ (a
Google fun mirror mirror)
http://www.guhgel.de/ (another Google
fun mirror)
http://www.assoziations-blaster.de/www.web.freerk.com/c/
http://mirror.sytes.org/ (a fun
mirror mirror *gg*)
http://hispeed.rogers.com/search/google.jsp (a
Google mirror)
http://www.gogole.com/ (a Google mirror)
http://google.icq.com/search/ (a
Google mirror)
http://www.googlesyndication.com/ (a official Googe "mirror")
http://www.zensur.freerk.com/google/ (a
mirror for the Google mirror...)
http://google.ainex.net/ (another
mirror for the Google mirror)
http://www.google-watch.org/cgi-bin/proxy.htm (another
Google and Alltheweb mirror)
http://gritechnologies.com/tools/diagnostic.go?www.web.freerk.com/c/ (see
as a search engine)
http://www.accu.org/cgi-bin/accu/access/access?Au=http%3A%2F%2Fwww.web.freerk.com/c/ (a
gateway/browser emulator)
Several years ago when the Internet connections where slow and the "www"
just invented, many people just got a to email restricted access to the Internet.
That's the origin of the "Agora" and "www4email" software.
Some of these email robots are still available and we can use them to bypass
Internet censorship. The best thing would be to subscribe to a free email provider
which allows SSL-connections (like https://www.fastmail.fm/,
https://www.ziplip.com/, https://www.hushmail.com/,
https://www.safe-mail.net/, https://www.mail2world.com/,
https://www.webmails.com/
e.t.c) and use that account with the email addresses below. I put the field
where you have to input the URL in brackets. It still works great for text.
But sure there are big problems with images or even DHTML, JavaScript, Java,
Flash e.t.c. Also other services besides www are possible, for a very good
tutorial
on this see ftp://rtfm.mit.edu/pub/usenet/news.answers/internet-services/access-via-email.
There is also a web based service under http://www.web2mail.com/.
I again used www.web.freerk.com/c/ as an example because the URL is all time accessible
and the '.com' in the original Google address is often considered as a .com
DOS-file by some computers and censorship systems. The www4mail software
(http://www.www4mail.org/)
is newer than the Agora software.
A eMail with just "help" in the subject line will get you a
tutorial on howto use the service properly.
[email protected]
[BODY] send http://www.web.freerk.com/c/
[email protected]
[BODY] send http://www.web.freerk.com/c/
[email protected]
[SUBJECT] url: http://www.web.freerk.com/c/
info: http://www.grabpage.org/
[email protected]
[BODY] http://www.web.freerk.com/c/
info: http://www.pagegetter.com/
[email protected]
[BODY] http://www.web.freerk.com/c/
info: http://www.pagegetter.com/
[email protected]
[BODY] get http://www.web.freerk.com/c/
info: http://vancouver-webpages.com/webgate/
[email protected]
[BODY] mail http://www.web.freerk.com/c/
info: http://vancouver-webpages.com/webgate/
[email protected]
[BODY] http://www.web.freerk.com/c/
info: http://www.ictp.trieste.it/~www4mail/
[email protected]
[BODY] http://www.web.freerk.com/c/
info: http://www.bellanet.org/email.html
[email protected]
[BODY] http://www.web.freerk.com/c/
info: http://www.kabissa.org/members/www4mail/
[email protected]
[BODY] http://www.web.freerk.com/c/
[email protected]
[BODY] http://www.web.freerk.com/c/
info: http://www.collaborium.org/~www4mail/
[email protected]
[BODY] url http://www.web.freerk.com/c/
info: http://boas.anthro.mnsu.edu/
[email protected]
[SUBJECT] GET URL
[BODY] url:http://www.web.freerk.com/c/
info: http://prime.jsc.nasa.gov/iliad/
Google Search via eMail:
[email protected]
[Subject] search keywords
info: http://www.capeclear.com/google/
More info: http://www.cix.co.uk/~net-services/mrcool/
ftp://rtfm.mit.edu/pub/usenet/news.answers/internet-services/access-via-email
Hide content inside of images.
More Info: http://www.wikipedia.org/wiki/Steganography
Camera/Shy is the only steganographic tool that automatically scans for and
delivers decrypted content straight from the Web. It is a stand-alone, Internet
Explorer-based browser that leaves no trace on the user's system and has enhanced
security.
Camera/Shy is an application that enables stealth communications, such software
can be useful in countries where Email communications are regularly monitored
and censored, such as happens in China.
More info: http://hacktivismo.com/news/modules.php?name=Content&pa=showpage&pid=12/
http://sourceforge.net/projects/camerashy/
There are different projects of peer-2-peer programs to bypass censorship.
They work like Napster, Kazaa and eDonkey, which means that you have to download
a little tool that contains a server and a client part.
The goal of the Peekabooty Project is to create a product that can bypass
the nationwide censorship of the World Wide Web practiced by many countries.
Peekabooty uses a complicated communications system to allow users to share
information while revealing little about their identity. When a node receives
a request for a web page it randomly decides whether to pass this on or access
the page itself. It also only knows the address of its nearest partner. This
makes it difficult to determine who requested what information and is designed
to protect users from anyone trying to infiltrate the system from inside.
More info: http://www.peek-a-booty.org/
Freenet is the oldest and most widely spread P2P-program to beat censorship,
so a lot of people use it and its actually working since several years quite
well. There is no access to the Internet possible through the Freenet client.
You can only view/download stuff from the 'free net'. You install the client
as a local proxy which is listening on port 8888 and can access links like
'http://localhost:8888/[email protected]/sites/fwhh/index.html'
It looks like a kind of normal URL. The 'localhost:8888' addresses the
proxy
server on port 8888 that is running on your local machine the rest is something
like an encrypted file name. It is not possible to determine who put some
information
into the network or who is downloading it.
More info: http://freenetproject.org/
http://www.freenet-china.org/
http://www.wikipedia.org/wiki/Freenet
More info: http://www.mojonation.net/
Safeweb, a company that received funding from In-Q-Tel, the CIS's centure
fund, released software called "Triangle Boy". The software is a peer-to-peer
application that volunteers download onto their PC's. A User that has been
denied access to any website by a censor can use the Triangle Boy software
to circumvent the censorship. Currently the Triangle Boy software only provides
access to the Voice of America, because this service is blocked by the Chinese
government.
More info: http://www.safeweb.com/tboy_service.html
More info: http://www.hacktivismo.com/
More info: http://entropy.stop1984.com/
Other services than the www.
The normal port for newsservers 119 is usually blocked, so you have to access
the Usenet via a different port. If you only sometimes want to read some very
common newsgroups you can easily visit them via free web-based newsservers
like
http://groups.google.com/, http://news.spaceports.com/,
http://wnews.easyusenet.com/wnews-free.cgi and http://www.news2web.com/.
A lot of newsserver companies offer their services on a non standard port.
Just
ask them before signup. If you need access to a newsserver with your newsclient
you have to subscribe to one of these newsserver-companies which allow access
to their newsservers on an uncommon port:
http://www.giganews.com/ - (news.giganews.com
on ports 23 and 80)
http://www.teranews.com/ - (news.teranews.com on ports 23, 25 and 7501)
http://www.easynews.com/ - (proxy.news.easynews.com
on 21, 22, 23, 25, 53, 80, 110, 443 and 8080, or try their web-based service)
http://www.newscene.com/ - (proxy.newscene.com
on ports 20, 21, 22, 23, 25, 53, 80, 81, 110, 443 and 8080)
http://www.supernews.com/ - (news.supernews.com
on any port
you like)
Note: all traffic is unencrypted, so you can access these
newsservers, but the censors can easily monitor all your traffic! It would
be more secure to use a SSH port forwarding.
thanks to 'sshproxy' from the nocensorship mailinglist
More info: http://www.wikipedia.org/wiki/Usenet
More info: http://www.wikipedia.org/wiki/FTP
http://inebria.com/phpftp/
http://www.angehrn.com/index.php?cat=28
http://www2ftp.de/
http://webftp.host.sk/
Instant Messenger are very popular. You have to register your nickname at
one of the companies and download their software. Then when you are in the
Internet you can start the software and log onto their servers. Since then
you are marked as "online" and all your friends who know your
nickname and get the same Instant Messenger can see that you are online
and easily
chat with you. Every of the 4 big players has its own software client which
contain advertisement, spyware and is not compatible with other IM protocols.
I recommend you to download Miranda, which is a open source Instant Messenger
which is very small, without ads or spyware and working without installation.
It works great with every IM protocol, even at the same time. http://miranda-im.org/
More info: http://www.wikipedia.org/wiki/Instant_messenger
http://www.infoanarchy.org/wiki/wiki.pl?Instant_Messenger
http://nscsysop.hypermart.net/no_chat.html
Users: 7 million
Login server: login.icq.com or login.oscar.aol.com
Used ports: tcp at any port you choose in the settings (default is 5190)
Used protocol: Oscar
Supports proxy: http, https, socks 4 and socks 5
Online version: http://go.icq.com/ (connects
to iht-d01.icq.com at any port you choose, default is 80) or http://www.odigo.org/features/express.html (The
Odigo client online, supports all 4 services)
More info: http://www.wikipedia.org/wiki/ICQ
http://www.rejetto.com/icq/
Users: 23 million
Login server:
messenger.hotmail.com
Used ports: tcp at 1863 which you can not change, but if connection failes, MSN
tries
port 80. (voice/video/webcam is tcp 13324 and 13325, application sharing/whiteboard
is
tcp
1503
and file transfer tcp 6891)
Used protocol:
Supports proxy:
http, socks 4 and socks 5
Online version: none official, but several inofficial. Be careful to give them
your password! http://www.odigo.org/features/express.html (The
Odigo client online, supports all 4 services), http://messenger.lycos.co.uk/messenger/ (Lycos
Messenger, works also with Yahoo) and maybe you can try http://www.mister-i.com/i-mode/messenger.jsp (i-mode,
after 3 days it costs $) or http://kickme.to/msnmessenger2go (he's
still working on it).
More info: http://www.wikipedia.org/wiki/.NET_Messenger_Service
Users: 60 million
Login server: login.oscar.aol.com, toc.oscar.aol.com and login.icq.com
Used ports: tcp at any port you choose in the settings (default is 5190), for
the IM images the software uses port 4443 (?)
Used protocol: Oscar
Supports proxy: http, https, socks 4 and socks 5
Online Version: http://toc.oscar.aol.com/ (The
old QuickBuddy, port 80) and http://toc.oscar.aol.com/aimexpress/index.html (the
newer AIM Express, port 80) or http://www.odigo.org/features/express.html (The
Odigo client online, supports all 4 services)
More info: http://www.wikipedia.org/wiki/AOL_Instant_Messenger
Users: 20 million
Login server: cs.yahoo.com or cs.yahoo.co.jp (maybe different)
Used ports: tcp 5050 and 80 for file transfer, which can be changed in the
settings
Used protocol:
Supports proxy: http, socks 4 and socks 5
Online Version: http://messenger.yahoo.com/ (The
official Web Messenger) or http://messenger.lycos.co.uk/messenger/ (Lycos
Messenger, which also supports MSN) or http://www.odigo.org/features/express.html (The
Odigo client online, supports all 4 services)
More info: http://www.wikipedia.org/wiki/Yahoo!_Messenger
Gnutella (decentralized) - BearShare, Gnucleus, LimeWire, new Morpheus,
Shareaza - More info: http://www.wikipedia.org/wiki/Gnutella
FastTrack (commercial, with Server) - KaZaA, KaZaA Lite, Grokster, old Morpheus,
iMesh - More info: http://www.wikipedia.org/wiki/FastTrack
eDonkey (lots of servers, uses mainly port 4662) - eDonkey2000,
Overnet, eMule, mlDonkey - More info: http://www.wikipedia.org/wiki/EDonkey
Napster (lots of servers) - OpenNap, Napigator, FileNavigatior, WinMX -
More info: http://www.wikipedia.org/wiki/Napster
Other networks - Audiogalaxy, BitTorrent, Hotwire, Direct
Connect, Evernet, SoulSeek
More info: http://www.wikipedia.org/wiki/Peer-to-peer
The one think is to access information that is already censored, but the other
challenge is to publish own information that can't easily be censored. Here
you can see my ideas on how to avoid censorship:
- Publish with a lot of mirrors. Especially dynamic IP's with a dyndns.org
redirector are useful. Put your pages on so much different servers that the
censors can't get along with blocking al the servers.
- Fax Polling. You can either use a service in the Internet or provide that
service on your own computer with a fax modem.
- Use one-time-addresses. These are links/URL's that are only valid
for 1 visit or 1 hour, they are often used for payed downloads.
- Hide the 'dangerous' content. For example save text as images. The
users won't notice it, but its difficult for the censor-spiders to 'read'
the content.
- Host on a secure server in another country. For example with http://www.havenco.com/
which is located at Sealand, an independent country on a little island in
the north sea near England.
- Encrypt the content. Use .htaccess and/or SSL for your website and
AES, Twofish or Rijndael for files.
- Offer your data in P2P-Programs. Filesharing programs like Kazaa
or eDonkey are very difficult to censor (see the problems of the music companies...)
- Send content via eMail. Create a autoresponder from which everybody
with a hotmail account can receive your content from.
- Martus. It's a encrypted bulletin service to post and view
informations. See: http://www.martus.org/
More info: http://www.wired.com/news/technology/0,1282,5778,00.html
http://galileo.spaceports.com/~simeon/censorship-evasion.html
http://www.angelfire.com/my/6waynes/
http://www.ijs.co.nz/proxies.htm
http://sethf.com/anticensorware/
http://www.flurnet.org/archive/papers/ProxyBypass.pdf
http://neworder.box.sk/newsread.php?newsid=8650
http://cyber.law.harvard.edu/filtering/
http://www.opennetinitiative.net/oni/ice/
http://peacefire.org/circumventor/
http://www.free-market.net/directorybytopic/censorship/
http://www.stop1984.info/
http://www.wikipedia.org/wiki/Internet_censorship_in_China
http://www.cmis.csiro.au/projects+sectors/blocking.pdf
http://www.topology.org/net/censor.html
Mailinglist: http://lists.efa.org.au/mailman/listinfo/stop-censorship
- (Discussions about censorship in Australia, English)
Mailinglist: http://www.freelists.org/webpage/nocensorship
- (How to beat censorship and proxies. Very good!)
http://www.vicnet.net.au/community/issues/censorship/
http://ch.dmoz.org/.../The_Censorship_Debate/Internet_Censorship/
http://ch.dmoz.org/Computers/.../Filtering/Getting_Around_Filters/
http://ch.dmoz.org/Computers/Software/.../Proxy/Filtering/Censorware/
http://ch.dmoz.org/Computers/Software/Internet/Clients/Filtering/
http://ch.dmoz.org/Reference/.../Filtering_Software/
6.1.3 Where to get proxies
http://tools.rosinstrument.com/proxy/
http://www.samair.ru/proxy/
http://www.atomintersoft.com/products/alive-proxy/proxy-list/
http://www.steganos.com/software/anonproxylist.sia
http://www.web.freerk.com/proxylist.htm (updated
weekly, uncommon port proxies)
Via autoresponder from [email protected]
http://www.proxyblind.org/phpBB2/
(Very good!)
http://www.samair.ru/f/ (Very good!)
http://www.freeproxy.ru/download/lists/goodproxy.txt
TO-DO-LIST:
Voice-over-IP
Bildung von Untergrund-(Inter)Netzen in Deutschland (GAMEnet etc.) http://www.personaltelco.net/ WLAN
dIRC (ChaosComputerCongress 1997) und Abwandlungen
http://www.guardianet.net/
http://www.w3.org/PICS/
http://www.peacefire.org/bypass/Proxy/akamai.html
ssh as a redirection server
rinetd as a redirection server
junkbuster
http-gw
VPNs
stone as both a redirector and a proxy
running a Perl proxy
often used non standard ports: 20, 21, 22, 23, 24, 25, 81, 82, 83, 84, 443,
1128, 2000, 5000, 6000,
6588, 7070, 8000, 8001, 8002, 8003, 8040, 8081, 8082, 8084, 8090, 8888, 8965,
9080, 9081, 10080, 22788
web.de answering machine ++49-(0)1212-552489659
softhome.net: free email with smtp server mail.softhome.net:2500 and mail.softhome.net:25000
http://www.stunnel.org/ -
http://www.infoanarchy.org/wiki/wiki.pl?Stunnel
url hiding with ascii, hex, oktal e.t.c codes.
http://www.lexikon-online.info/q/Internetzensur
MSN - messenger.hotmail.com:1863 afterwards port 80 (gateway.messenger.hotmail.com,
login.gateway.hotmail.com, msgr.hotmail.com?)
Yahoo! - cs.yahoo.com:505 or cs.yahoo.com:5050 (msg.edit.yahoo.com, http.pager.yahoo.com,
messenger.yahoo.com, scs.yahoo.com?)
port 80
ftp server that show the user IP in the welcome message (test for anonymity): ftp.rz.uni-wuerzburg.de, ftp.gui.uva.es,
sunsite.tus.ac.jp, ftp.matrix.com.br, ftp.cis.ohio-state.edu, ftp.gnupilgrims.org
servers that listen on any port (test it with telnet server.com PORT ): login.icq.com,
news.supernews.com, login.oscar.aol.com
final dot after domains like described in: http://www.wikipedia.org/wiki/Root_nameserver
http://www.gray-world.net/
Other mirror server maintained by me: http://tokyo.cool.ne.jp/cship/ (Infoseek
- Tokyo, Japan)
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