OpenVPN на CentOS не удается рукопожатие TLS

794
enrm

Я пытаюсь настроить OpenVPN на Centos, следуя руководству по DigitalOcean https://www.digitalocean.com/community/tutorials/how-to-setup-and-configure-an-openvpn-server-on-centos- 7

И я сделал все шаги, но когда я пытаюсь связаться с удаленным хостом через мой Windows OpenVPN Gui, который я запускаю как администратор, я получаю следующее:

Sat Apr 21 22:32:24 2018 TCP/UDP: Preserving recently used remote address: [AF_INET]<MyremoteIP>:1194 Sat Apr 21 22:32:24 2018 UDP link local (bound): [AF_INET][undef]:1194 Sat Apr 21 22:32:24 2018 UDP link remote: [AF_INET]<MyremoteIP> Sat Apr 21 22:32:24 2018 OpenSSL: error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed Sat Apr 21 22:32:24 2018 TLS_ERROR: BIO read tls_read_plaintext error Sat Apr 21 22:32:24 2018 TLS Error: TLS object -> incoming plaintext read error Sat Apr 21 22:32:24 2018 TLS Error: TLS handshake failed 

На стороне сервера:

sudo journalctl -xe Apr 21 22:32:24 vpn-smb openvpn[1061]: Sat Apr 21 22:32:24 2018   82.183.59.233:1194 TLS: Initial packet from [AF_INET]<my_host_ip>:1194, sid=f76ecc9a 7483d5de Apr 21 22:33:24 vpn-smb openvpn[1061]: Sat Apr 21 22:33:24 2018 <my_host_ip>:1194 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) Apr 21 22:33:24 vpn-smb openvpn[1061]: Sat Apr 21 22:33:24 2018 <my_host_ip>:1194 TLS Error: TLS handshake failed 

По крайней мере, они общаются, поэтому я предполагаю, что сетевая часть настроена правильно. Тем не менее, я просто использовал пакет easy-rsa, упомянутый в руководстве выше, который, как я предполагал, решит проблемы с сертификатами.

Я переделал набор сертификатов дважды, но безрезультатно. Возможно, я что-то упускаю из-за частей CN / name сервера / клиента, но я не уверен, что именно я мог бы изменить, чтобы это работало. Нет ли способа отладить, что именно не получается?

Мой OVPN на стороне клиента:

myVPN.ovpn  client tls-client ca ca.crt cert enrm.crt key enrm.key tls-crypt smb\\my.tlsauth remote-cert-eku "TLS Web Client Authentication" proto udp remote my_vpn_ip 1194 udp dev tun topology subnet pull user nobody group nobody 

Я в тупике ..

Вид связанных:

openvpn TLS ошибка квитирования в centos7

OpenVPN на ошибке рукопожатия TLS на Diskstation, самоподписанный сертификат, значения по умолчанию

РЕДАКТИРОВАТЬ: вот конф для сервера

################################################# # Sample OpenVPN 2.0 config file for # # multi-client server. # # # # This file is for the server side # # of a many-clients <-> one-server # # OpenVPN configuration. # # # # OpenVPN also supports # # single-machine <-> single-machine # # configurations (See the Examples page # # on the web site for more info). # # # # This config should work on Windows # # or Linux/BSD systems. Remember on # # Windows to quote pathnames and use # # double backslashes, e.g.: # # "C:\\Program Files\\OpenVPN\\config\\foo.key" # # # # Comments are preceded with '#' or ';' # #################################################  # Which local IP address should OpenVPN # listen on? (optional) ;local a.b.c.d  # Which TCP/UDP port should OpenVPN listen on? # If you want to run multiple OpenVPN instances # on the same machine, use a different port # number for each one. You will need to # open up this port on your firewall. port 1194  # TCP or UDP server? ;proto tcp proto udp  # "dev tun" will create a routed IP tunnel, # "dev tap" will create an ethernet tunnel. # Use "dev tap0" if you are ethernet bridging # and have precreated a tap0 virtual interface # and bridged it with your ethernet interface. # If you want to control access policies # over the VPN, you must create firewall # rules for the the TUN/TAP interface. # On non-Windows systems, you can give # an explicit unit number, such as tun0. # On Windows, use "dev-node" for this. # On most systems, the VPN will not function # unless you partially or fully disable # the firewall for the TUN/TAP interface. ;dev tap dev tun  # Windows needs the TAP-Win32 adapter name # from the Network Connections panel if you # have more than one. On XP SP2 or higher, # you may need to selectively disable the # Windows firewall for the TAP adapter. # Non-Windows systems usually don't need this. ;dev-node MyTap  # SSL/TLS root certificate (ca), certificate # (cert), and private key (key). Each client # and the server must have their own cert and # key file. The server and all clients will # use the same ca file. # # See the "easy-rsa" directory for a series # of scripts for generating RSA certificates # and private keys. Remember to use # a unique Common Name for the server # and each of the client certificates. # # Any X509 key management system can be used. # OpenVPN can also use a PKCS #12 formatted key file # (see "pkcs12" directive in man page). ca /etc/openvpn/ca.crt cert /etc/openvpn/server.crt key /etc/openvpn/server.key # This file should be kept secret  # Diffie hellman parameters. # Generate your own with: # openssl dhparam -out dh2048.pem 2048 dh /etc/openvpn/dh2048.pem  # Network topology # Should be subnet (addressing via IP) # unless Windows clients v2.0.9 and lower have to # be supported (then net30, i.e. a /30 per client) # Defaults to net30 (not recommended) topology subnet  remote-cert-eku "TLS Web Client Authentication"  # Configure server mode and supply a VPN subnet # for OpenVPN to draw client addresses from. # The server will take 10.8.0.1 for itself, # the rest will be made available to clients. # Each client will be able to reach the server # on 10.8.0.1. Comment this line out if you are # ethernet bridging. See the man page for more info. server 10.8.0.0 255.255.255.0  # Maintain a record of client <-> virtual IP address # associations in this file. If OpenVPN goes down or # is restarted, reconnecting clients can be assigned # the same virtual IP address from the pool that was # previously assigned. ifconfig-pool-persist ipp.txt  # Configure server mode for ethernet bridging. # You must first use your OS's bridging capability # to bridge the TAP interface with the ethernet # NIC interface. Then you must manually set the # IP/netmask on the bridge interface, here we # assume 10.8.0.4/255.255.255.0. Finally we # must set aside an IP range in this subnet # (start=10.8.0.50 end=10.8.0.100) to allocate # to connecting clients. Leave this line commented # out unless you are ethernet bridging. ;server-bridge 10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100  # Configure server mode for ethernet bridging # using a DHCP-proxy, where clients talk # to the OpenVPN server-side DHCP server # to receive their IP address allocation # and DNS server addresses. You must first use # your OS's bridging capability to bridge the TAP # interface with the ethernet NIC interface. # Note: this mode only works on clients (such as # Windows), where the client-side TAP adapter is # bound to a DHCP client. ;server-bridge  # Push routes to the client to allow it # to reach other private subnets behind # the server. Remember that these # private subnets will also need # to know to route the OpenVPN client # address pool (10.8.0.0/255.255.255.0) # back to the OpenVPN server. ;push "route 192.168.10.0 255.255.255.0" ;push "route 192.168.20.0 255.255.255.0"  # To assign specific IP addresses to specific # clients or if a connecting client has a private # subnet behind it that should also have VPN access, # use the subdirectory "ccd" for client-specific # configuration files (see man page for more info).  # EXAMPLE: Suppose the client # having the certificate common name "Thelonious" # also has a small subnet behind his connecting # machine, such as 192.168.40.128/255.255.255.248. # First, uncomment out these lines: ;client-config-dir ccd ;route 192.168.40.128 255.255.255.248 # Then create a file ccd/Thelonious with this line: # iroute 192.168.40.128 255.255.255.248 # This will allow Thelonious' private subnet to # access the VPN. This example will only work # if you are routing, not bridging, i.e. you are # using "dev tun" and "server" directives.  # EXAMPLE: Suppose you want to give # Thelonious a fixed VPN IP address of 10.9.0.1. # First uncomment out these lines: ;client-config-dir ccd ;route 10.9.0.0 255.255.255.252 # Then add this line to ccd/Thelonious: # ifconfig-push 10.9.0.1 10.9.0.2  # Suppose that you want to enable different # firewall access policies for different groups # of clients. There are two methods: # (1) Run multiple OpenVPN daemons, one for each # group, and firewall the TUN/TAP interface # for each group/daemon appropriately. # (2) (Advanced) Create a script to dynamically # modify the firewall in response to access # from different clients. See man # page for more info on learn-address script. ;learn-address ./script  # If enabled, this directive will configure # all clients to redirect their default # network gateway through the VPN, causing # all IP traffic such as web browsing and # and DNS lookups to go through the VPN # (The OpenVPN server machine may need to NAT # or bridge the TUN/TAP interface to the internet # in order for this to work properly). push "redirect-gateway def1 bypass-dhcp"  # Certain Windows-specific network settings # can be pushed to clients, such as DNS # or WINS server addresses. CAVEAT: # http://openvpn.net/faq.html#dhcpcaveats # The addresses below refer to the public # DNS servers provided by opendns.com. push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4"  # Uncomment this directive to allow different # clients to be able to "see" each other. # By default, clients will only see the server. # To force clients to only see the server, you # will also need to appropriately firewall the # server's TUN/TAP interface. ;client-to-client  # Uncomment this directive if multiple clients # might connect with the same certificate/key # files or common names. This is recommended # only for testing purposes. For production use, # each client should have its own certificate/key # pair. # # IF YOU HAVE NOT GENERATED INDIVIDUAL # CERTIFICATE/KEY PAIRS FOR EACH CLIENT, # EACH HAVING ITS OWN UNIQUE "COMMON NAME", # UNCOMMENT THIS LINE OUT. ;duplicate-cn  # The keepalive directive causes ping-like # messages to be sent back and forth over # the link so that each side knows when # the other side has gone down. # Ping every 10 seconds, assume that remote # peer is down if no ping received during # a 120 second time period. keepalive 10 120  # For extra security beyond that provided # by SSL/TLS, create an "HMAC firewall" # to help block DoS attacks and UDP port flooding. # # Generate with: # openvpn --genkey --secret ta.key # # The server and each client must have # a copy of this key. # The second parameter should be '0' # on the server and '1' on the clients. ;tls-auth ta.key 0 # This file is secret tls-crypt /etc/openvpn/saturnus.tlsauth  # Select a cryptographic cipher. # This config item must be copied to # the client config file as well. # Note that v2.4 client/server will automatically # negotiate AES-256-GCM in TLS mode. # See also the ncp-cipher option in the manpage cipher AES-256-CBC  # Enable compression on the VPN link and push the # option to the client (v2.4+ only, for earlier # versions see below) ;compress lz4-v2 ;push "compress lz4-v2"  # For compression compatible with older clients use comp-lzo # If you enable it here, you must also # enable it in the client config file. ;comp-lzo  # The maximum number of concurrently connected # clients we want to allow. ;max-clients 100  # It's a good idea to reduce the OpenVPN # daemon's privileges after initialization. # # You can uncomment this out on # non-Windows systems. user nobody group nobody  # The persist options will try to avoid # accessing certain resources on restart # that may no longer be accessible because # of the privilege downgrade. persist-key persist-tun  # Output a short status file showing # current connections, truncated # and rewritten every minute. status openvpn-status.log  # By default, log messages will go to the syslog (or # on Windows, if running as a service, they will go to # the "\Program Files\OpenVPN\log" directory). # Use log or log-append to override this default. # "log" will truncate the log file on OpenVPN startup, # while "log-append" will append to it. Use one # or the other (but not both). ;log openvpn.log ;log-append openvpn.log  # Set the appropriate level of log # file verbosity. # # 0 is silent, except for fatal errors # 4 is reasonable for general usage # 5 and 6 can help to debug connection problems # 9 is extremely verbose verb 3  # Silence repeating messages. At most 20 # sequential messages of the same message # category will be output to the log. ;mute 20  # Notify the client that when the server restarts so it # can automatically reconnect. explicit-exit-notify 1 
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Вы проверили дату как на клиенте, так и на сервере? Неправильные даты могут привести к сбою проверки SSL, если они находятся за пределами срока действия сертификата. davidgo 5 лет назад 1
@davidgo - Привет. Я использовал пакет easy_rsa из руководства для генерации сертификатов - я только указал количество дней, в течение которых они должны быть действительными, но я все равно собираюсь перепроверить - хорошая точка зрения. enrm 5 лет назад 0
сервер: `Срок действия не ранее: 21 апреля 22:28:49 2018 по Гринвичу не позднее: 18 апреля 22:28:49 2028 по Гринвичу` То же самое с клиентом .. enrm 5 лет назад 0
Да, но какова дата на клиенте? davidgo 5 лет назад 0
Также покажите конфиг серверной части! Вы используете "tls-crypt", и, возможно, это является частью проблемы. Ralf Hildebrandt 5 лет назад 0
@davidgo что ты имеешь в виду под датой на клиенте? Фактическая дата - 23 апреля, если вы это имеете в виду. Я не знаю, как проверить дату сертификата клиента enrm 5 лет назад 0
@RalfHildebrandt Я добавил conf к OP. Спасибо за ваш ответ enrm 5 лет назад 0

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