我发现了一个类似的线程，但它仍然无法解决我的问题。（OpenVPN Source vars not working on debian）
我根据https://help.ubuntu.com/14.04/serverguide/openvpn.html建立了OpenVPN
根据以下指南尝试创建证书时出现问题：
cd /etc/openvpn/easy-rsa/ ## move to the easy-rsa directory
sudo chown -R root:admin . ## make this directory writable by the system administrators
source ./vars ## execute your new vars file
./clean-all ## Setup the easy-rsa directory (Deletes all keys)
./build-dh ## takes a while consider backgrounding
./pkitool --initca ## creates ca cert and key
./pkitool --server server ## creates a server cert and key
cd keys
openvpn --genkey --secret ta.key ## Build a TLS key
cp server.crt server.key ca.crt dh1024.pem ta.key ../../
当我尝试：
source ./vars
shell给了我回复：
NOTE: If you run ./clean-all, I will be doing a rm -r on /etc/openvpv/easy-rsa/keys
我忽略了它并尝试了下一行：
sudo ./clean-all
然后说：
Please source the vars script first (i.e. "source ./vars")
Make sure you have edited it to reflect your configuration
我在google和stackoverflow中搜索，无法解决问题。
谢谢你的帮助
谁能帮助我？