https://github.com/vi/tcpsocks

Redirect traffic to SOCKS5 server with iptables, epoll based, single threaded.
https://github.com/vi/tcpsocks

epoll iptables redirect socks socks5

Last synced: 19 days ago
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Redirect traffic to SOCKS5 server with iptables, epoll based, single threaded.

• Host: GitHub
• URL: https://github.com/vi/tcpsocks
• Owner: vi
• License: lgpl-2.1
• Created: 2010-11-01T18:26:35.000Z (about 14 years ago)
• Default Branch: master
• Last Pushed: 2021-09-14T17:36:38.000Z (about 3 years ago)
• Last Synced: 2024-10-17T15:35:11.670Z (about 1 month ago)
• Topics: epoll, iptables, redirect, socks, socks5
• Language: C
• Homepage:
• Size: 52.7 KB
• Stars: 119
• Watchers: 11
• Forks: 35
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: COPYING

Awesome Lists containing this project

README

        
Simple Linux epoll-based single thread SOCKS5 client.

Supports getting destination address with SO_ORIGINAL_DST (for use with `-j REDIRECT` iptables target) and telling that address to SOCKS server.

Alternative, more complete libevent-based implementation: [redsocks](https://github.com/darkk/redsocks)

Example setup:

    # # Prepare iptables:

    # iptables -t nat -N QQQ

    # iptables -t nat -A QQQ -d 127.0.0.0/8 -j RETURN

    # iptables -t nat -A QQQ -d 80.83.124.150 -p tcp --dport 22 -j RETURN

    # iptables -t nat -A QQQ -p tcp -j REDIRECT --to-ports 1234

    # iptables -t nat -I OUTPUT 1 -j QQQ

    # iptables -t nat -I PREROUTING 1 -j QQQ

    

    $ # connect to SSH:

    $ ssh -D 127.0.0.1:1080 [email protected]

    

    $ # start tcpsocks:

    $ tcpsocks 0.0.0.0 1234 REDIRECT REDIRECT 127.0.0.1 1080

    192.168.99.2:54761 -> 66.102.13.103:80 [5->6]

        192.168.99.2:54761 -> 66.102.13.103:80 [5->6] Started 

        192.168.99.2:54761 -> 66.102.13.103:80 [5->6] Finished

    192.168.99.2:56097 -> 79.105.152.94:24692 [5->6]

        192.168.99.2:56097 -> 79.105.152.94:24692 [5->6] Started

    192.168.99.2:45627 -> 79.97.43.185:59283 [17->18]

        192.168.99.2:45620 -> 79.97.43.185:59283 [13->14] tcpsocks: End of file from SOCKS5 server [phase 3]

        192.168.99.2:45620 -> 79.97.43.185:59283 [13->14] Finished

    ?

    Commands: quit list kill Debug

    l

        192.168.99.2:56097 -> 79.105.152.94:24692 [5->6] 2317:425

    k 5

        192.168.99.2:56097 -> 79.105.152.94:24692 [5->6] Finished

    l

tcpsocks allow interactive control of connections: you can list then and kill (by specifying fd). When listing, it prints uploaded/downloaded bytes for each connection.

tcpsocks does not require configuration expect of command line parameters.

You can't limit connection speed, use [tcplim](https://github.com/vi/tcplim) for this.