| 1 | This directory contains: |
| 2 | |
| 3 | * userv ipif |
| 4 | |
| 5 | A userv service for allowing users to create network interfaces and |
| 6 | handle the traffic for them. |
| 7 | |
| 8 | * udptunnel |
| 9 | |
| 10 | A VPN tunnelling system based on userv ipif, which does encryption |
| 11 | and can be used to join two hosts or whole networks. It uses its |
| 12 | own nonstandard protocols, not IPSEC. Key setup is done via an ssh |
| 13 | connection, and actual data packets are sent (encrypted) using UDP. |
| 14 | With the appropriate configuration in userv ipif, users can be |
| 15 | allowed to create VPN connections without needing root privilege. |
| 16 | |
| 17 | These tools have only been tested on GNU/Linux, and userv ipif in |
| 18 | particular uses the Linux-specific `slattach' utility. |
| 19 | |
| 20 | |
| 21 | The documentation available is: |
| 22 | |
| 23 | INSTALL |
| 24 | |
| 25 | Build and install instructions for both ipif and udptunnel, and |
| 26 | tutorial on setting up userv ipif and udptunnel in the usual way. |
| 27 | |
| 28 | udptunnel (head comment) |
| 29 | |
| 30 | Configuration and invocation reference information for the udptunnel |
| 31 | VPN facility. |
| 32 | |
| 33 | service.c (head comment) |
| 34 | |
| 35 | Reference information for userv ipif service, including syntax of |
| 36 | /etc/userv/ipif-networks, and command line arguments to userv ipif. |
| 37 | |
| 38 | mech-*.c (head comments) |
| 39 | |
| 40 | Detailed specifications of encryption, padding, |
| 41 | etc. transformations. For use by cryptographers only; otherwise, |
| 42 | follow the advice elsewhere about what transformations to use. |
| 43 | |
| 44 | forwarder.c (head comment) |
| 45 | |
| 46 | Underlying UDP forwarding program invocation details. This program |
| 47 | is normally invoked correctly by `udptunnel'. You should not need |
| 48 | to read these details unless you are debugging or modifying udptunnel. |
| 49 | |
| 50 | |
| 51 | Copyright (C) 1999-2000,2003 Ian Jackson |
| 52 | This file is part of ipif, part of userv-utils |
| 53 | |
| 54 | This is free software; you can redistribute it and/or modify it |
| 55 | under the terms of the GNU General Public License as published by |
| 56 | the Free Software Foundation; either version 2 of the License, or |
| 57 | (at your option) any later version. |
| 58 | |
| 59 | This program is distributed in the hope that it will be useful, but |
| 60 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 61 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 62 | General Public License for more details. |
| 63 | |
| 64 | You should have received a copy of the GNU General Public License |
| 65 | along with userv-utils; if not, write to the Free Software |
| 66 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 67 | |
| 68 | |
| 69 | $Id$ |