Do this in a shell:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | sudo su - #Make sure you have what it takes to compile it. apt-get install dpkg-dev #Here are the libraries that are missing # that we need for the cisco concentrator apt-get install libgcrypt11-dev apt-get install libssl-dev # So we have to get the source and compile it ourselves apt-get source vpnc cd vpnc-0.5.3 # and remove the comment so it will actually *USE* # the libraries we added sed -i 's/^#OPENSSL/OPENSSL/' Makefile # Prepare the dependencies for compiling apt-get build-dep vpnc # Compile and make an installable package dpkg-buildpackage cd .. # Install the package dpkg -i vpnc_0.5.3-1_i386.deb |
Then, create a file with your personal vpn settings. Here is mine as an example. Put this file in /etc/vpnc/yourfile.conf. It must be in this folder, and the name must end in .conf.
1 2 3 4 5 | IPSec gateway vpn.yourdomain.com IPSec ID thenameofyourgroup IPSec secret passwordyeradmingaveyou Xauth username yername Xauth password yersupersecretpassword |
If you are using an RSA SecureID, you should leave off the Xauth password line in the configuration. You will be prompted for the password later, and it will not echo anything to the console.
After that, create a startup/shutdown script This one is like an init.d script, but we will have to run it interactively. This script will be in the root home directory:
/root/mytunnel
Remember to change line 4 to the name of the configuration file you created earlier.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | #!/bin/bash vpnc=/usr/local/sbin/vpnc conf=/etc/vpnc/yourfile.conf pid=/var/run/vpnc/pid function start () { echo "Enter VPN password:" $vpnc $conf > /dev/null } function stop () { [[ ! -f $pid ]] && exit vpid=$(cat $pid) kill $vpid } function status () { [[ ! -f $pid ]] && { echo "$0 is not running" exit } vpid=$(cat $pid) instance=$(ps aux | grep $vpid | sed "/grep $vpid/d") [[ ! -z "$instance" ]] && echo "$0 is running" || echo "$0 is not running" } function reload () { echo "Reload is not supported for cisco vpn" } function restart () { stop start } VERSION=0.1 case "$1" in start) start $VERSION ;; stop) stop "$VERSION" ;; restart) restart "$VERSION" ;; reload) reload $VERSION ;; status) status $VERSION ;; *) echo "Usage: $0 {start|stop|restart|reload|status}" exit 1 ;; esac exit 0 |
Make it executable:
chmod +x mytunnel |
You are now ready to start vpnc!
./mytunnel start
Enter VPN password: |
There will be no response. That is a good thing, because the vpn is now running in the background. Test this with:
./mytunnel status ./mytunnel is running |
Have fun mucking around in somebody else’s network!
When you’re done with your evil intentions:
./mytunnel stop |
You’re now done with the thing you had to do, to get to the thing you had to do, so you could do some work.
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