Compile vpnc with openssl in Ubuntu

1. Compile vpnc with openssl and build package

• Download vpnc source

sudo apt-get source vpnc

• Uncomment some lines from Makefile. One of these two set of lines would be present in Makefile uncomment whichever is present.

OPENSSL_GPL_VIOLATION = -DOPENSSL_GPL_VIOLATION
OPENSSLLIBS = -lcrypto
or
OPENSSL_GPL_VIOLATION=yes

• Build vpnc dependencies

sudo apt-get build-dep vpnc

• Install openssl

sudo apt-get install openssl

• Install libssl dev packages

sudo apt-get install libssl-dev

• Build vpnc package

sudo dpkg-buildpackage

2. Create a vpnc conf file

#Generated by pcf2vpnc
IPSec ID GeneralHybrid
IPSec gateway <server>
IPSec secret <sercret>
Xauth username <username>
IKE Authmode hybrid
CA-File <path_to_certificate_file>.pem

#Xauth password 123456
#IKE DH Group dh2
#To add your username and password, use the following lines:
#Xauth password <your password>

3. Install network manager vpnc with openssl support

TBD