Install Oracle's openconnect VPN on Ubuntu 16.04LTS

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It worked on the first try on my machine.

We remove unusable packages:

sudo apt-get purge network-manager-openconnect network-manager-openconnect-gnome

We compile the dependencies:

sudo apt-get build-dep network-manager-openconnect

The sources in apt must be active:

sudo sed -i s/#deb-src/deb-src/g /etc/apt/sources.list

We install the new dependencies:

sudo apt-get install libnm-dev

We retrieve the source code:


We go to the directory:

cd NetworkManager-openconnect-1.1.93

We launch the configure:

./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --libexecdir=/usr/lib/NetworkManager/ --enable-more-warnings=yes --disable-static

We compile:


We install:

sudo make install

We install openconnect:

sudo apt-get install openconnect

We compile the package with checkinstall:

sudo checkinstall

We add a system user:

sudo adduser --system --quiet --home /var/lib/NetworkManager --no-create-home --gecos "NetworkManager OpenConnect plugin" --group nm-openconnect}

And we restart.