sSocks is a package which contains: a socks5 server implements RFC 1928 (SOCKS V5) and RFC 1929 (Authentication for SOCKS V5), a reverse socks server and client, a netcat like tool, which supports socks5 with authentication and a socks5 relay (run a server and send to a another socks5 server).

CI Builds:

Travis	AppVeyor	Win32 binaries
		check here

Features:

Configuration file
Authentication file
Generate a connection log file
Daemon mode
Server support bind mode
Socks4 support (if authentication is enable socks4 is disable)
Support choose of interface to bind

TODO:

IPV6 support
UDP support
Stock password with a hash ( md5 or sha256 )
GSSAPI auth support ( maybe )
Set number of client max ( actually 255 is in client.h MAXCLI var )
Add --pid-file option to server
ssocks bind localhost, not all
SSL implements out of RFC

Software:

nsocks is a netcat like through a socks5 (usefull to test socks server)
ssocksd is the socks5 server
ssocks is a socks5 relay, it run a socks server on your localhost interface, and relay all data to the server specified in parameter (works but under dev)
rssocks is a reverse socks5 server ( POC under dev )
rcsocks is a reverse socks5 client ( POC under dev )

File:

/etc/ssocksd.conf is server configuration file
/etc/ssocksd.auth is password file
/var/log/ssocksd.log is default log (specified in configuration file)
/var/run/ssocksd.pid is create in daemon mode and delete when it receive SIGTERM

How to use rssocks and rcsocks in pentest mode http://www.vimeo.com/22515255

More information see man page:

ssocksd (1), nsocks (1), ssocks (1), ssocksd.auth (5), ssocksd.conf (5) rssocks (1), rcsocks (1)

Ubuntu/debian install:

dpkg -i ssocks_0.0.-_i386.deb

Warning: This package install the server with init script and start it with no authentication in the config file, so everybody can connect on.

Gentoo install:

I've a ebuild with init script contact me if you want it

From source:

./configure && make

Warning: don't content init script

Warning, if you import from git, you need to do:

$ ./bootstrap.sh

PS for me: To avoid to wait when you debug the server and some socket don't close properly

echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle

To compile with dynamic lib

$ ./configure --disble-static

To enable SSL

$ ./configure with-ssl

Just for remember (this by default actually)

$ ./configure --enable-static --disable-shared

PS: for test and debug authentication

$ curl -U admin:abcde --socks5 127.0.0.1:1080 www.perdu.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

comealong/ssocks

echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle