ecpvolht

Eon CheckPoint VPN on Linux How-To

extract pkcs12 package into CA cert, client cert and private key https://stackoverflow.com/a/9516936/2915423 (optionally drop private key passphrase)
install shrew vpn client (package called ike on Ubuntu/Debian, google the package name for your specific distro OR build from source)
configure as suggested on attached screenshots, OR import site config and replace cert files & private key @ Authentication:Credentials tab
run key service daemon (via provided ikedsvc init script or manually)
launch the GUI (qikea) and connect OR use the CLI variant ikec -r <sitename> -a where the sitename is a name of file located at ~/.iked/sites/
enjoy

In case CLI solution is preferred init service can be used. In order for it to work symlink shell scripts from within ./src as follows:

Then, both the key daemon and the connection client can be run via CLI like this:

sudo /etc/init.d/ike start && /etc/init.d/ikes start

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