Cannot establish a connection using StrongSwan: "no config named"

Question

I am trying to set up a VPN connection on an Ubuntu server using StrongSwan. I have followed several guides, but when I attempt to establish the connection, I receive the error "no config named 'cockvpn'". I have tried multiple solutions, but none have worked so far. I am looking for help in resolving this issue.

Here's what I have done so far:

Installed StrongSwan and required plugins:

sudo apt-get update
sudo apt-get install strongswan strongswan-plugin-eap-mschapv2

Created the /etc/ipsec.conf file with the following content:

config setup
    charondebug="ike 1, knl 1, cfg 0"
    uniqueids=no

conn cockvpn
    keyexchange=ikev2
    ike=aes256-sha256-modp2048!
    esp=aes256-sha256128!
    dpdaction=clear
    dpddelay=300s
    rekey=no
    left=%any
    leftsubnet=0.0.0.0/0
    leftfirewall=yes
    right=cockvpn.org
    rightsubnet=0.0.0.0/0
    rightid=%any
    auto=add

Imported the provided CA certificate into /etc/ipsec.d/cacerts/.

Checked the syntax of the ipsec.conf file using sudo ipsec checkconf, and no errors were reported.

Made sure the StrongSwan service is using the correct configuration file by checking the service configuration and modifying it if necessary.

Restarted the StrongSwan service and attempted to establish a connection using sudo ipsec up cockvpn. I also trying restart charon.

Despite these steps, I still receive the "no config named 'cockvpn'" error. I have also checked the file permissions and file paths, but everything seems to be correct.

Has anyone encountered a similar issue or can provide guidance on how to resolve this problem? Any help would be greatly appreciated.

ubuntu 22.04 Linux strongSwan U5.6.2/K4.15.0-210-generic

Cannot establish a connection using StrongSwan: "no config named"

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