ProxyChains ver 4.3 README
==========================
ProxyChains is a UNIX program, that hooks network-related libc functions
in dynamically linked programs via a preloaded DLL and redirects the
connections through SOCKS4a/5 or HTTP proxies.
*********** ATTENTION ***********
this program works only on dynamically linked programs.
also both proxychains and the program to call must use
the same dynamic linker (i.e. same libc).
why ? because in order to hook to libc functions like
connect(), dynamic loader facilities are used, namely
dl_sym() and LD_PRELOAD.
*********************************
*** Installation ***
# needs a working C compiler, preferably gcc
./configure
make
[optional] sudo make install
if you dont install, you can use proxychains from the build directory
like this: ./proxychains4 -f src/proxychains.conf telnet google.com 80
Changelog:
----------
Version 4.3:
- fixes programs that do dns-lookups in child processes (fork()ed),
like irssi. to achieve this, support for compilation without pthreads
was sacrified.
- fixes thread safety for gethostent() calls.
- improved DNS handling speed, since hostent db is cached.
Version 4.2:
- fixes compilation issues with ubuntu 12.04 toolchain
- fixes segfault in rare codepath
Version 4.1
- support for mac os x (all archs)
- all internal functions are threadsafe when compiled with -DTHREAD_SAFE
(default).
Version 4.0
- replaced dnsresolver script (which required a dynamically linked "dig"
binary to be present) with remote DNS lookup.
this speeds up any operation involving DNS, as the old script had to use TCP.
additionally it allows to use .onion urls when used with TOR.
- removed broken autoconf build system with a simple Makefile.
there's a ./configure script though for convenience.
it also adds support for a config file passed via command line switches/
environment variables.
Version 3.0
- support for DNS resolving through proxy
supports SOCKS4, SOCKS5 and HTTP CONNECT proxy servers.
Auth-types: socks - "user/pass" , http - "basic".
When to use it ?
1) When the only way to get "outside" from your LAN is through proxy server.
2) To get out from behind restrictive firewall which filters outgoing ports.
3) To use two (or more) proxies in chain:
like: your_host <--> proxy1 <--> proxy2 <--> target_host
4) To "proxify" some program with no proxy support built-in (like telnet)
5) Access intranet from outside via proxy.
6) To use DNS behind proxy.
7) To access hidden tor onion services.
Some cool features:
* This program can mix different proxy types in the same chain
like: your_host <-->socks5 <--> http <--> socks4 <--> target_host
* Different chaining options supported
random order from the list ( user defined length of chain ).
exact order (as they appear in the list )
dynamic order (smart exclude dead proxies from chain)
* You can use it with any TCP client application, even network scanners
yes, yes - you can make portscan via proxy (or chained proxies)
for example with Nmap scanner by fyodor (www.insecire.org/nmap).
proxychains nmap -sT -PO -p 80 -iR (find some webservers through proxy)
* You can use it with servers, like squid, sendmail, or whatever.
* DNS resolving through proxy.
Configuration:
--------------
proxychains looks for config file in following order:
1) file listed in environment variable ${PROXYCHAINS_CONF_FILE} or
provided as a -f argument to proxychains script or binary.
2) ./proxychains.conf
3) $(HOME)/.proxychains/proxychains.conf
4) /etc/proxychains.conf **
**see more in /etc/proxychains.conf
Usage Example:
$ proxychains telnet targethost.com
in this example it will run telnet through proxy(or chained proxies)
specified by proxychains.conf
Usage Example:
$ proxychains -f /etc/proxychains-other.conf targethost2.com
in this example it will use different configuration file then proxychains.conf
to connect to targethost2.com host.
Usage Example:
$ proxyresolv targethost.com
in this example it will resolve targethost.com through proxy(or chained proxies)
specified by proxychains.conf
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