Free socks5 software for linux

usocksd project is a user-mode SOCKS5 daemon.

While the usual "socksd" runs as a system service, perhaps on a firewall machine with no users, this one is intended to be run by users themselves.

There are two situations where this is useful:

1. User has access to a machine with less restricted connectivity than the machine he works on.

2. User is on an insecure network and wants all network traffic to be enrypted using "ssh", and has access to a machine running "sshd" on a more secure network. "usocksd" contains special provisions for this situation.

More information on how to run "usocksd" is in the man page.

Installation: sh ./configure; make; make install.
configure takes additional arguments --enable-debug, --enable-norelax and --with-socks5. configure --help for more info.

This program can itself use SOCKS, although I havent tested that option.

Developed on Linux 2.0, tested also on HPUX 10, AIX 4.1, Solaris 2.6.

JSch is a pure Java implementation of SSH2.
JSch project allows the user to connect to an sshd server and use port forwarding, X11 forwarding, file transfer, etc., and you can integrate its functionality into your own Java programs. JSch is licensed under BSD style license.
Our intension in developing this stuff is to enable users of our pure java X servers, WiredX and WeirdX, to enjoy secure X sessions. Our efforts have mostly targeted the SSH2 protocol in relation to X window system and X11 forwarding. Of course, we are also interested in adding other functionality - port forward, file transfer, terminal emulation, etc.
Needless to say, SSH provides support for secure remote login, secure file transfer, and secure TCP/IP and X11 forwarding. It can automatically encrypt, authenticate, and compress transmitted data.
The SSH protocol is available in two incompatible varieties: SSH1 and SSH2. SSH2 was invented to avoid the patent issues regarding RSA (RSA patent has expired), and to fix some data integrity problem that SSH1 has, and for a number of other technical reasons.
SSH2 protocol has been standardized on IETF Secure Shell working group and drafts related to SSH2 protocol are available on the web. In developing JSch, we are now referring to following documents:
SSH Protocol Architecture
SSH Transport Layer Protocol
Diffie-Hellman Group Exchange for the SSH Transport Layer Protocol
SSH Connection Protocol
SSH Authentication Protocol
Main features:
- JSch is in pure Java, but it depends on JavaTM Cryptography Extension (JCE). JSch is know to work with:
- J2SE 1.4.0 or later (no additional libraries required).
- J2SE 1.3 and Suns JCE reference implementation that can be obtained at http://java.sun.com/products/jce/.
- J2SE 1.2.2 and later and Bouncycastles JCE implementation that can be obtained at http://www.bouncycastle.org/.
- SSH2 protocol support.
- Key exchange: diffie-hellman-group-exchange-sha1, diffie-hellman-group1-sha1
- Cipher: blowfish-cbc, 3des-cbc, aes128-cbc,aes192-cbc,aes256-cbcnew!
- MAC: hmac-md5, hmac-sha1, hmac-md5-96, hmac-sha1-96
- Host key type: ssh-dss,ssh-rsa
- Userauth: password
- Userauth: publickey(DSA,RSA)
- Userauth: keyboard-interactive
- X11 forwarding
- xauth spoofing
- connection through HTTP proxy.
- connection through SOCKS5 proxy.
- port forwarding.
- stream forwarding.
- signal sending. The unofficial patch for sshd of openssh will be found in this thread.
- remote exec.
- generating DSA and RSA key pairs.
- changing the passphrase for a private key.
- partial authentication
- SSH File Transfer Protocol(version 0, 1, 2, 3)
- packet compression. JZlib has been used.
- JSch is licensed under BSD style license.
Enhancements:
- bugfix: freeze in diffie-hellman-group-exchange-sha1. FIXED. By the default, diffie-hellman-group1-sha1 will be used and if you have not chosen diffie-hellman-group-exchange-sha1 explicitly, you dont have to worry about it.
- bugfix: there should be timeout mechanism in opening a socket for remote port forwarding. FIXED. At the failure or timeout, SSH_MSG_CHANNEL_OPEN_FAILURE will be sent to sshd.
- bugfix: there should be timeout mechanism in opening a socket for X11 forwarding. FIXED. At the failure or timeout, SSH_MSG_CHANNEL_OPEN_FAILURE will be sent to sshd.

Gnapster is a powerful client to the napster online MP3 community written for GTK/GNOME.
Installation (standard GNU autoconf installation):
./configure [ --disable-gnome ]
make
and as root:
make install
Napster itself has kind of a hacky way to get around firewalls, by setting your port to 0 and connecting outgoing instead of incoming in order for you to upload. This still means that you cannot download from other firewalled users with the same setup, severely limiting the functionality of Napster. Gnapster currently supports this option from 1.3.7 version.
The real problem is that a lot of users on Napster are behind a firewall as well. Thus, your computer and the one you are trying to download from cannot accept connections in. This creates problems. The only way around this is for one of you to be able to accept. This is left up to you.
The best way to completely resolve this problem if you have access to the gateway machine is to setup port redirection. Redirect port 6699 on the gateway machine to your IP in the LAN (port 6699). Then connect to Napster normally and everything should work fine. I used a program called redir to do this on my home LAN.
IMPORTANT! If you do not have admin access on the gateway machine you cannot do this! I suggest opening the properties and checking the firewall option. This will cause the server to limit your search results to only computers you can download from.
Enhancements:
- Multiple server/account management
- Search history
- Bandwidth limiting
- Ability to specify multiple share directories
- Many internal improvements
- Vorbis file sharing support
- MPEG/AVI file sharing support
- Added file type to search criteria
- Updated Browse OpenNAP dialog
- Fixed Safe Exit option
- Added an option to execute a program after a successful download
- Fixed a potentially exploitable remote segmentation fault concerning uploads
- SOCKS5 support should (hopefully) be fixed now
- Timestamped events
- Lots more changes I cant remember
- As usual, many bug fixes

Alexs Firewall ByPasser is another TCP tunnel for HTTP proxies.
Main features:
multi-thread design:
- It can handle a huge number of simultaneous connections without problems.
multiple proxies:
- It use a list of available proxies to make connections. So every connection can be done over a different proxy.
ability to check proxies list:
- It is able to check the proxies before real use. This feature can be used to clean and optimize the proxies list.
curses interface:
- It have a nice top like curses interface.
daemon mode:
- It is able to run in background & quiet mode.
Socks4 and Socks5 protocol support:
- Partial support for Socks4 and Socks5. Only CONNECT method (Socks4 & Socks5) and NO AUTHENTICATION (Socks5) is implemented at this time, but in most of the cases it is enough (future versions will implement complete support of both protocols).
Version restrictions:
Alexs Firewall ByPasser should work with every HTTP proxy, with the following exceptions:
- MS Proxies with NTLM authentication. NTLM is a proprietary authentication method from Microsoft, not a standard authentication method.
- HTTP/1.0 and HTTP/1.1 Proxies without the CONNECT method.

Downloader for X is a tool for downloading files from the Internet via both HTTP and FTP with a powerful but userfriendly interface.
Downloader for X supports reconnecting and resuming on connection timeouts, has a download queue for multiple files, support for simultaneous downloads, and many other features for powerful downloading.
Main features:
- Supporting both FTP and HTTP protocols as well as HTTP and FTP proxy servers. SOCKS5 support is also included! Authentication on the proxy servers is supported too.
- The Program keep the logs of all download sessions that allows advanced user to monitor problems manualy according information from these logs.
- It allows users to manage their downloads in real time. User can pause, continue, move in queue, add new downloads and remove downloads manualy. User also can allow to remove completed or failed downloads automatically by the program.
- Recursive downloading via FTP as well as via HTTP is supported. Powerful Filters-manager allow advanced user to specify files which must to be downloaded and files which must to be skipped. Wildcards are supported for FTP downloads too.
- Ability to download in more than one connection per time. Usualy downloading using number of connections increases speed of downloading up to 300% and even more!
- Supporting of so called `Persistent connections increases speed of downloading due much less amount of `standing connection stages. With this feature D4X uses connections to the servers many times. Persistent connections over HTTP are supported automaticaly but persistent connections over FTP can be turned on by user (Do not send QUIT command option of FTP settings).
- Ability to limit download speed of separate file as well as for the whole program allows modem user browse through the Web and download files at the same time.
- Built-in Scheduller, URL-manager and Automatically adding allow advaced user to simplify managing downloads by various criterias.
- Multiqueued design, ability to run without X interface, ability to manage D4X via command line and many other features will satisfy anybody who find a time to learn this program.
Enhancements:
- bug fixes

Libsdf library is a shared library which, when preloaded, will intercept calls to a GNU libc functions open() and open64(), and if the first argoment of these functions is a remote file (http:// or ftp://), it will copy this file in a local path (< user >/.sdf) and it will runs the functions top of it.

With the /.sdfrc file, you can use the libsdf with a proxy.

The syntax for .sdfrc file, is:

---/home/bakunin/.sdfrc ---

# Important: proxy string MUST is PROTOCOL://...
proxy = "http://localhost"

# Port is optional. Default = 8080.
port = 8080

# Socks5 is optional. Default is false (http proxy).
socks5 = false

JCTerm is an SSH2 terminal emulator written in pure Java. The project supports port forwarding, X11 forwarding, etc.
Enhancements:
- JCTerm requires jsch(http://www.jcraft.com/jsch/) 0.1.0 or later.
- JCTerm requires J2SE 1.4.
- JCTermMIDP runs on J2ME/CLDC/MIDP2.0
- JCTermJ2MECDC runs on J2ME/CDC/PP 1.0
- VT100 emulation
- SSH2 protocol support.
- X11 forwarding.
- connection through HTTP proxy.
- connection through SOCKS5 proxy.
- local/remote port forwarding.
- anti-aliasing text.
- sftp support.
- packet compression support
- JCTerm is licensed under GNU LGPL.

icqlib is the most feature complete, open source, library implementation of Mirabilis ICQ protocol available on the Internet. icqlib currently is supporting approximately 90% of the ICQ UDP v5 protocol and 80% of the ICQ TCP v2 protocol, including new UIN registration, chat, and file transfer.
Main features:
- written in C for portability - compiles on most Unices
- supports multiple simultaneous connections to ICQ servers - more than one UIN can log in and receive events
- SOCKS5 firewall support for both UDP and TCP protocols
- event driven, non-blocking interface
- supports Russian language - automatically performs conversion from Windows 1251 encoding to unix koi8 encoding
Enhancements:
- ChangeLog, icqlib-0.2.0.lsm, icqlib-1.0.0.lsm, README, TODO,
- VERSION, Win32.zip:
- Updated version for 1.0.0 release.