技术解析
用 Raspberry Pi 搭 ocserv
config:
server-cert = /etc/ocserv/fullchain.pem
server-key = /etc/ocserv/privkey.pem
ca-cert = /etc/ocserv/cert.pem
然后签发 user 证书
certtool --generate-certificate --load-privkey user-key.pem --load-ca-certificate cert.pem --load-ca-privkey privkey.pem --template user.tmpl --outfile user-cert.pem