I have a Ubuntu Server 16.04 VM in VirtualBox, downloaded and installed strongSwan on it using commands below:
sudo apt-get install gcc make libgmp3-dev build-essential
wget http://download.strongswan.org/strongswan-5.6.0.tar.bz2
tar xjvf strongswan-5.6.0.tar.bz2
cd strongswan-5.6.0
./configure --prefix=/usr --sysconfdir=/etc
sudo make
sudo make install
After sudo make it states that vici plugin will be installed:
strongSwan will be built with the following plugins
-----------------------------------------------------
libstrongswan: aes des rc2 sha2 sha1 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8 pkcs12 pgp dnskey sshkey pem fips-prf gmp curve25519 xcbc cmac hmac
libcharon: attr kernel-netlink resolve socket-default stroke vici updown xauth-generic
libtnccs:
libtpmtss:
But after building and installing swanctl --stats outputs:
connecting to 'unix:///var/run/charon.vici' failed: No such file or directory
Error: connecting to 'default' URI failed: No such file or directory
strongSwan 5.6.0 swanctl
Everything is done step-by-step as on strongSwan Installation Documentation. What is the possible reason it is not working?
The solution to problem is starting charon daemon and enabling strongswan service (so after reboot it will start automatically). For my installation I need to use these commands:
sudo /usr/libexec/ipsec/charon &
sudo systemctl enable strongswan.service
Also, I added this option to configuration, since I use Ubuntu Server 16.04 with systemd:
sudo ./configure --prefix=/usr --sysconfdir=/etc --with-systemdsystemunitdir=/lib/systemd/system