I think,that its OpenVPN Community Edition.
I tried to make this command (I installed openvpn from debian repository):
root@prd-ovpn-02:/etc/openvpn# openvpn --version
OpenVPN 2.4.7 i686-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Feb 20 2019
library versions: OpenSSL 1.1.1d 10 Sep 2019, LZO 2.10
Originally developed by James Yonan
Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
Compile time defines: enable_async_push=no enable_comp_stub=no enable_crypto=yes enable_crypto_ofb_cfb=yes enable_debug=yes enable_def_auth=yes enable_dependency_tracking=no enable_dlopen=unknown enable_dlopen_self=unknown enable_dlopen_self_static=unknown enable_fast_install=needless enable_fragment=yes enable_iproute2=yes enable_libtool_lock=yes enable_lz4=yes enable_lzo=yes enable_maintainer_mode=no enable_management=yes enable_multihome=yes enable_pam_dlopen=no enable_pedantic=no enable_pf=yes enable_pkcs11=yes enable_plugin_auth_pam=yes enable_plugin_down_root=yes enable_plugins=yes enable_port_share=yes enable_selinux=no enable_server=yes enable_shared=yes enable_shared_with_static_runtimes=no enable_silent_rules=no enable_small=no enable_static=yes enable_strict=no enable_strict_options=no enable_systemd=yes enable_werror=no enable_win32_dll=yes enable_x509_alt_username=yes with_aix_soname=aix with_crypto_library=openssl with_gnu_ld=yes with_mem_check=no with_sysroot=no
Config of my server:
port 443
proto udp
dev tun
ca certs/ca.crt
cert certs/prd-ovpn-02.crt
key keys/prd-ovpn-02.key # This file should be kept secret
crl-verify certs/crl.pem
dh keys/dh.pem
topology subnet
mode server
tls-server
server <server_ip_address> 255.255.255.0
ifconfig-pool-persist /var/log/openvpn/ipp.txt
push "route <my_network_address> <my_network_mask>"
client-config-dir ccd
push "dhcp-option DNS <my_dns_server1>"
push "dhcp-option DNS <my_dns_server2>"
push "dhcp-option DOMAIN <my_search_domain>"
client-to-client
keepalive 10 120
tls-auth keys/ta.key 0 # This file is secret
cipher AES-256-CBC
auth SHA256
user openvpn
group openvpn
persist-key
persist-tun
status /var/log/openvpn/openvpn-status.log
log-append /var/log/openvpn/openvpn.log
verb 3
explicit-exit-notify 1
example config for clients:
client
remote vpn.myvpnserveraddress.su 443
cipher aes-256-cbc
auth sha256
dev tun
proto udp
tls-client
key-direction 1
pull
<tls-auth>
-----BEGIN OpenVPN Static key V1-----
--- skipped ---
-----END OpenVPN Static key V1-----
</tls-auth>
<ca>
-----BEGIN CERTIFICATE-----
--- skipped ---
-----END CERTIFICATE-----
</ca>
<cert>
-----BEGIN CERTIFICATE-----
--- skipped ---
-----END CERTIFICATE-----
</cert>
<key>
-----BEGIN PRIVATE KEY-----
--- skipped ---
-----END PRIVATE KEY-----
</key>
What other information needed?
