Vpnc w/ Hybrid on Ubuntu Karmic Koala
A while ago, I gave up on Cisco’s VPN for linux. Well, it appears my company did anyway. Nothing was ever available to work on a current kernel, and finding patches is hard. Especially with my system not being 64-bit capable.
Then I had someone tell me that they got it to work with the NetworkManager Applet. I installed all the packages that they gave me, but it did not work. With the packages installed already, I looked at my default.conf and entered what was needed.
IPSec ID xxxxxxxx
IPSec gateway xxxxxxxx
IPSec secret xxxxxxxx
IKE Authmode hybrid
Application version Cisco Systems VPN Client 4.8.00 (0490) Linux
CA-File /etc/vpnc/xxxxxxxx
Script /etc/vpnc/vpnc-script
Xauth username xxxxxxxx
After setting up the configuration files, I noticed I would get this error:
vpnc was built without openssl: Can’t do hybrid or cert mode.
So I had to compile it with openssl myself.
sudo apt-get build-dep vpnc
sudo apt-get install libssl-dev
mkdir ~/src/vpnc -p
cd ~/src/vpnc
apt-get source vpnc
cd vpnc-*
sudo gedit Makefile
These two lines need to be uncommented in the makefile
OPENSSL_GPL_VIOLATION = DOPENSSL_GPL_VIOLATION
OPENSSLLIBS = -lcrypto
sudo dpkg -i ../vpnc*.deb
Now I was getting somewhere, sort of. Any attempt to connect would yield this while telling me that I was connected:
resolvconf: Error: /etc/resolv.conf must be a symlink
I found a lot of faulty info on how to fix this. If I created my own symlink it would get overwritten. Here is how I have resolved it.
sudo aptitude remove resolvconf
sudo aptitude purge resolvconf
sudo aptitude install resolvconf
sudo NetworkManager start
I was able to connect without any errors.
Eric B is a young, underpaid, mild mannered corporate whore. For more, see the About Page.
