ProxyChains ver 4.4 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 can be used to circumvent censorship. doing so can be VERY DANGEROUS in certain countries. ALWAYS MAKE SURE THAT PROXYCHAINS WORKS AS EXPECTED BEFORE USING IT FOR ANYTHING SERIOUS. this involves both the program and the proxy that you're going to use. for example, you can connect to some "what is my ip" service like ifconfig.me to make sure that it's not using your real ip. ONLY USE PROXYCHAINS IF YOU KNOW WHAT YOU'RE DOING. *********** 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 --prefix=/usr --sysconfdir=/etc make [optional] sudo make install [optional] sudo make install-config (installs proxychains.conf) 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 4.4: - FreeBSD port - fixes some installation issues on Debian and Mac. 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