# 3APA3A 3proxy tiny proxy server(c) 2002-2025 by Vladimir '3APA3A' Dubrovin <3proxy@3proxy.org>Branches:Master (stable) branch - 3proxy 0.9 Devel branch - 3proxy 10 (don't use it)* DownloadBinaries and sources for released (master) versions (Windows, Linux):https://github.com/z3APA3A/3proxy/releasesDocker images:https://hub.docker.com/repository/docker/3proxy/3proxyArchive of old versions:https://github.com/z3APA3A/3proxy-archive* DocumentationDocumentation (man pages and HTML) available with download, onhttps://3proxy.org/and in github wikihttps://github.com/3proxy/3proxy/wiki* Windows installation3proxy --install installs and starts proxy as Windows service(config file should be located in the same directory)3proxy --remove removes the service (should be stopped before via'net stop 3proxy').* To build in Linuxinstall git and build-essential packages, usegit clonehttps://github.com/z3apa3a/3proxycd 3proxyln -s Makefile.Linux Makefilemakesudo make installDefault configuration (for Linux/Unix):3proxy uses 2 configuration files:/etc/3proxy/3proxy.cfg (before-chroot). This configuration file is executed before chroot and should not be modified./usr/local/3proxy/conf/3proxy.cfg symlinked from /etc/3proxy/conf/3proxy.cfg (after-chroot) is a main configuration file. Modify this file, if required.All paths in /usr/local/3proxy/conf/3proxy.cfg are relative to chroot directory (/usr/local/3proxy). For future versions it's planned to move3proxy chroot direcory to /var.Log files are created in /usr/local/3proxy/logs symlinked from /var/log/3proxy.By default, socks is started on 0.0.0.0:1080 and proxy on 0.0.0.0:3128 with basic auth, no users are added by default.use /etc/3proxy/conf/add3proxyuser.sh script to add users.usage: /etc/3proxy/conf/add3proxyuser.sh username password [day_limit] [bandwidth]        day_limit - traffic limit in MB per day        bandwidth - bandwith in bits per second 1048576 = 1Mbpsor modify /etc/3proxy/conf/ files directly.* For MacOS X / FreeBSD / *BSDgit clonehttps://github.com/z3apa3a/3proxycd 3proxyln -s Makefile.FreeBSD Makefilemake(binaries are in bin/ directory) Features:  1. General+ IPv6 support for incoming and outgoing connection,  can be used as a proxy between IPv4 and IPv6 networks  in either direction.+ HTTP/1.1 Proxy with keep-alive client and server support,          transparent proxy support.+ HTTPS (CONNECT) proxy (compatible with HTTP/2 / SPDY)+ Anonymous and random client IP emulation for HTTP proxy mode+ FTP over HTTP support.+ DNS caching with built-in resolver+ DNS proxy+ DNS over TCP support, redirecting DNS traffic via parent  proxy+ SOCKSv4/4.5 Proxy+ SOCKSv5 Proxy+ SOCKSv5 UDP and BIND support (fully compatible with  SocksCAP/FreeCAP for UDP)+ Transparent SOCKS redirection for HTTP, POP3, FTP, SMTP+ SNI proxy (based on TLS hostname)+ TLS (SSL) server - may be used as https:// type proxy+ POP3 Proxy+ FTP proxy+ TCP port mapper (port forwarding)+ UDP port mapper (port forwarding)+ SMTP proxy+ Threaded application (no child process).+ Web administration and statistics+ Plugins for functionality extension+ Native 32/64 bit application  2. Proxy chaining and network connections+ Can be used as a bridge between client and different proxy type  (e.g. convert incoming HTTP proxy request from client to SOCKSv5  request to parent server).+ Connect back proxy support to bypass firewalls+ Parent proxy support for any type of incoming connection+ Username/password authentication for parent proxy(s).+ HTTPS/SOCKS4/SOCKS5 and ip/port redirection parent support+ Random parent selection+ Chain building (multihop proxing)+ Load balancing between few network connections by choosing network  interface  3. Logging+ tuneable log format compatible with any log parser+ stdout logging+ file logging+ syslog logging (Unix)+ ODBC logging+ RADIUS accounting+ log file rotation+ automatic log file processing with external archiver (for files)+ Character filtering for log files+ different log files for different servces are supported  4. Access control+ ACL-driven Access control by username, source IP,destination IP/hostname, destination port and destination action(POST, PUT, GET, etc), weekday and daytime.+ ACL-driven (user/source/destination/protocol/weekday/daytime orcombined) bandwith limitation for incoming and (!)outgoing trafic.+ ACL-driven traffic limitation per day, week or month for incoming andoutgoing traffic+ Connection limitation and ratelimting+ User authentication by username / password+ RADIUS Authentication and Authorization+ User authentication by DNS hostname+ Authentication cache with possibility to limit user to single IP address+ Access control by username/password for SOCKSv5 and HTTP/HTTPS/FTP+ Cleartext or encrypted (crypt/MD5 or NT) passwords.+ Connection redirection+ Access control by requested action (CONNECT/BIND,   HTTP GET/POST/PUT/HEAD/OTHER).+ All access control entries now support weekday and time limitations+ Hostnames and * templates are supported instead of IP address  5. Extensions+ Regular expression filtering (with PCRE) via PCREPlugin+ Authentication with Windows username/password (cleartext only)+ SSL/TLS decryptions with certificate spoofing+ Transparent redirection support for Linux and *BSD  6. Configuration+ support for configuration files+ support for includes in configuration files+ interface binding+ socket options+ running as daemon process+ utility for automated networks list building+ configuration reload on any file change     Unix+ support for chroot+ support for setgid+ support for setuid+ support for signals (SIGUSR1 to reload configuration)     Windows+ support --install as service+ support --remove as service+ support for service START, STOP, PAUSE and CONTINUE commands (onPAUSE no new connection accepted, but active connections still inprogress, on CONTINUE configuration is reloaded)     Windows 95/98/ME+ support --install as service+ support --remove as service  6. Compilation+ MSVC (static)+ OpenWatcom (static)+ Intel Windows Compiler (msvcrt.dll)+ Windows/gcc (msvcrt.dll)+ Cygwin/gcc (cygwin.dll)+ Unix/gcc+ Unix/ccc+ Solaris+ Mac OS X, iPhone OS+ Linux and derivered systems+ Lite version for Windows 95/98/NT/2000/XP/2003+ 32 bit and 64 bit versions for Windows Vista and above, Windows 2008 server and above 3proxy    Combined proxy server may be used asexecutable or service (supports installation and removal).It uses config file to read it's configuration (see3proxy.cfg.sample for details).3proxy.exe is all-in-one, it doesn't require all others .exeto work.See 3proxy.cfg.sample for examples, see man 3proxy.cfgproxy    HTTP proxy server, binds to port 3128ftppr    FTP proxy server, binds to port 21socks    SOCKS 4/5 proxy server, binds to port 1080ftpprFTP proxy server, please do not mess it with FTP over HTTPproxy used in browserspop3p    POP3 proxy server, binds to port 110. You must specifyPOP3 username as username@target.host.ip[:port]port is 110 by default.Exmple: in Username configuration for you e-mail readerset someuser@pop.example.org, to obtains mail for someuserfrom pop.somehost.ru via proxy.smtpp    SMTP proxy server, binds to port 25. You must specifySMTP username as username@target.host.ip[:port]port is 25 by default.Exmple: in Username configuration for you e-mail readerset someuser@mail.example.org, to send mail as someuservia mail.somehost.ru via proxy.tcppm    TCP port mapping. Maps some TCP port on local machine toTCP port on remote host.tlspr    TLS proxy (SNI proxy) - sniffs hostname from TLS handshakeudppm    UDP port mapping. Maps some UDP port on local machine toUDP port on remote machine. Only one user simulationeouslycan use UDP mapping, so it cann't be used for public servicein large networks. It's OK to use it to map to DNS serverin small network or to map Counter-Strike server for singleclient (you can use few mappings on different ports fordifferent clients in last case).mycrypt    Program to obtain crypted password fro cleartext. Supportsboth MD5/crypt and NT password.mycrypt passwordproduces NT passwordmycrypt salt passwordproduces MD5/crypt password with salt "salt".Run utility with --help option for command line reference.Latest version is available fromhttps://3proxy.org/Want to donate the project?https://3proxy.org/donations/