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unable to make it work for google oauth #95

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vadirajks opened this issue Dec 23, 2023 · 16 comments · Fixed by #179
Closed

unable to make it work for google oauth #95

vadirajks opened this issue Dec 23, 2023 · 16 comments · Fixed by #179
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🐞 bug Something isn't working

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@vadirajks
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vadirajks commented Dec 23, 2023 •
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Current Behavior

getting below error:

Dec 23 14:02:16 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Service RestartSec=5s expired, scheduling restart.
Dec 23 14:02:16 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Scheduled restart job, restart counter is at 321.
Dec 23 14:02:16 vaditest-openvpn-google systemd[1]: Stopped OpenVPN authenticator.
Dec 23 14:02:16 vaditest-openvpn-google systemd[1]: Started OpenVPN authenticator.
Dec 23 14:02:16 vaditest-openvpn-google openvpn-auth-oauth2[324571]: time=2023-12-23T14:02:16.037Z level=INFO msg="discover oidc auto configuration with provider generic for issuer https://accounts.google.com/.well-known/openid-configuration"
Dec 23 14:02:16 vaditest-openvpn-google openvpn-auth-oauth2[324571]: time=2023-12-23T14:02:16.171Z level=ERROR msg="newProviderWithDiscovery: http status not ok: 404 Not Found <html lang=en><meta charset=utf-8><meta name=viewport content=\"initial-scale=1, minimum-scale=1, width=device-width\"><title>Error 404 (Not Found)!!1</title><style nonce=\"c7w3kzaxeA31SLc-q1Va-w\">*{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{color:#222;text-align:unset;margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px;}* > body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}pre{white-space:pre-wrap;}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/branding/googlelogo/1x/googlelogo_color_150x54dp.png) no-repeat;margin-left:-5px}@media only screen and (min-resolution:192dpi){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat 0% 0%/100% 100%;-moz-border-image:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) 0}}@media only screen and (-webkit-min-device-pixel-ratio:2){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat;-webkit-background-size:100% 100%}}#logo{display:inline-block;height:54px;width:150px}</style><main id=\"af-error-container\" role=\"main\"><a href=//www.google.com><span id=logo aria-label=Google role=img></span></a><p><b>404.</b> <ins>That’s an error.</ins><p>The requested URL was not found on this server. <ins>That’s all we know.</ins></main>"
Dec 23 14:02:16 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Main process exited, code=exited, status=1/FAILURE
Dec 23 14:02:16 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Failed with result 'exit-code'.

Expected Behavior

No response

Steps To Reproduce

below configuration is from : /etc/sysconfig/openvpn-auth-oauth2
CONFIG_OPENVPN_ADDR=unix:///run/openvpn/server.sock
CONFIG_OPENVPN_PASSWORD=XXXXXX
CONFIG_OAUTH2_ISSUER=https://accounts.google.com/.well-known/openid-configuration
CONFIG_OAUTH2_CLIENT_ID=162738495-xxxxx.apps.googleusercontent.com (it is not correct-ID)
CONFIG_OAUTH2_CLIENT_SECRET=GOCSPX-xxxxxxxx (it is not correct-SECRET)
# Define a random value with 16 or 24 characters
CONFIG_HTTP_SECRET=cFL3QzfPJUqdsdsdsds
# Define the public http endpoint here.
CONFIG_HTTP_LISTEN=:9000
CONFIG_HTTP_BASE_URL=https://login.example.com (it is not correct-domain name)

1> referring to document, it has mentioned either of this 2 in different place:
CONFIG_HTTP_BASEURL
CONFIG_HTTP_BASE_URL 
not sure which one is correct.
2>i have setup reverse proxy to make use tls for 9000 PORT and i am not sure what PORT i need to use in CONFIG_HTTP_LISTEN

upstream app {
    server 127.0.0.1:9000;
}

server {
    if ($host = login.example.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot
    listen 80 default_server;
    server_name login.example.com;
    return 404; # managed by Certbot

}

server {
    listen 443 ssl; # managed by Certbot
    server_name login.example.com;
    ssl_certificate /etc/letsencrypt/live/login.example.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/login.example.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
    location / {
      proxy_pass http://app;
      proxy_set_header X-Real-IP  $remote_addr;
      proxy_set_header X-Forwarded-For $remote_addr;
      proxy_set_header Host $host;
      proxy_set_header X-Real-Port $server_port;
      proxy_set_header X-Real-Scheme $scheme;
    }
}


### Environment

- openvpn-auth-oauth2 Version:openvpn-auth-oauth2-1.12.2-1.x86_64
- OpenVPN Server Version:openvpn-2.6.8-1.el8.x86_64
- Server OS:Rocky Linux release 8.9 (Green Obsidian)
- OpenVPN Client (flavor, OS):  openvpn3       21-1+jammy   amd64        OpenVPN 3 Linux client


### Anything else?

please help me to fix this. Thanks
@vadirajks vadirajks added the 🐞 bug Something isn't working label Dec 23, 2023
@jkroepke
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jkroepke commented Dec 23, 2023 •
edited
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Hi,

CONFIG_HTTP_BASEURL is correct.

CONFIG_OAUTH2_ISSUER=https://accounts.google.com/.well-known/openid-configuration

I guess there is an issue in the documentation. Sorry for this. Could you pls try to use this?

CONFIG_OAUTH2_ISSUER=https://accounts.google.com

@vadirajks
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vadirajks commented Dec 23, 2023 •
edited
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That's great!!. Thank you very much for pretty fast response and helping us :).
It's fixed and now i have different errors:

Dec 23 18:16:10 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Service RestartSec=5s expired, scheduling restart.
Dec 23 18:16:10 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Scheduled restart job, restart counter is at 33.
Dec 23 18:16:10 vaditest-openvpn-google systemd[1]: Stopped OpenVPN authenticator.
Dec 23 18:16:10 vaditest-openvpn-google systemd[1]: Started OpenVPN authenticator.
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.787Z level=INFO msg="discover oidc auto configuration with provider generic for issuer https://accounts.google.com"
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.812Z level=INFO msg="start HTTP server listener on 9000 with base url https://openvpnvadi.atomex.net"
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.812Z level=ERROR msg="error http listener: ListenAndServeTLS: listen tcp: address 9000: missing port in address"
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.812Z level=INFO msg="connect to openvpn management interface unix:///run/openvpn/server.sock"
Dec 23 18:16:10 vaditest-openvpn-google openvpn[322404]: MANAGEMENT: Client connected from /run/openvpn/server.sock
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.813Z level=INFO msg="shutdown OpenVPN management connection"
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.813Z level=INFO msg="start graceful shutdown of http listener"
Dec 23 18:16:10 vaditest-openvpn-google openvpn-auth-oauth2[343955]: time=2023-12-23T18:16:10.813Z level=INFO msg="http listener successfully terminated"
Dec 23 18:16:10 vaditest-openvpn-google openvpn[322404]: MANAGEMENT: TCP recv error: Connection reset by peer
Dec 23 18:16:10 vaditest-openvpn-google openvpn[322404]: MANAGEMENT: Client disconnected
Dec 23 18:16:10 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Main process exited, code=exited, status=1/FAILURE
Dec 23 18:16:10 vaditest-openvpn-google systemd[1]: openvpn-auth-oauth2.service: Failed with result 'exit-code'.

/etc/openvpn/server/server.conf:

management /run/openvpn/server.sock unix /etc/openvpn/password.txt
#management /run/openvpn/server.sock unix
#management 127.0.0.1 8081 /etc/openvpn/password.txt
#management-hold
management-client-auth

If i enable management-hold, systemctl restart openvpn-server@server is not coming out.
Thanks,

@jkroepke
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Could you please double check, if you set CONFIG_HTTP_LISTEN=:9000 and not CONFIG_HTTP_LISTEN=9000? You can also try CONFIG_HTTP_LISTEN=127.0.0.1:9000 to keep the listener local

@vadirajks
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vadirajks commented Dec 24, 2023 •
edited
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Thanks, it worked.
what suppose to be my client configuration *.ovpn suppose to be[where it needs to be pointing]. Can you please provide me sample configuration file for both openvpn server /etc/openvpn/server/server.conf and there corresponding client configuration if you don't mind.
I am bit confused with what to do next.
here is my server configuration for testing:

[root@vaditest-openvpn-google ~]# cat  /etc/openvpn/server/server.conf 
#local openvpnvadi.atomex.net
local x.x.x.x
port 1194
proto udp
dev tun
ca ca.crt
cert server.crt
key server.key
dh dh.pem
auth SHA256
tls-crypt tc.key
topology subnet
server x.x.x.x x.x.x.x
push "block-ipv6"
#push "ifconfig-ipv6 fddd:1194:1194:1194::2/64 fddd:1194:1194:1194::1"
#push "redirect-gateway def1 ipv6 bypass-dhcp"
push "route x.x.x.x x.x.x.x"
pull-filter ignore "route-ipv6"
pull-filter ignore "ifconfig-ipv6"
ifconfig-pool-persist ipp.txt
push "dhcp-option DNS 1.1.1.1"
push "dhcp-option DNS 1.0.0.1"
push "block-outside-dns"
keepalive 10 120
cipher AES-128-GCM
tun-mtu 1200
#mssfix 1200
user nobody
group nobody
persist-key
persist-tun
verb 3
crl-verify crl.pem
explicit-exit-notify
status /var/log/openvpn-status.log
management /run/openvpn/server.sock unix /etc/openvpn/password.txt
#management /run/openvpn/server.sock unix
#management 127.0.0.1 8081 /etc/openvpn/password.txt
#management-hold
management-client-auth
[root@vaditest-openvpn-google ~]#

my client configuration :

> cat  vadi1.ovpn
client
dev tun
proto udp
remote openvpnvadi.example.com 1194
resolv-retry infinite
nobind
persist-key
persist-tun
remote-cert-tls server
auth SHA256
cipher AES-128-GCM
ignore-unknown-option block-outside-dns block-ipv6
verb 3
<ca>
-----BEGIN CERTIFICATE-----
MIIDSzCCAjOgAwIBAgIUGIvP2R0f1Pwy059WbLdDz5veKEIwDQYJKoZIhvcNAQEL
ruUw3K0IebXB7eZFRIKbX9p1z8xODqViEWHlwvxjSw==
-----END CERTIFICATE-----
</ca>
<cert>
-----BEGIN CERTIFICATE-----
MIIDUjCCAjqgAwIBAgIQBqCtBsuloFqeuPiZGLdwbTANBgkqhkiG9w0BAQsFADAW
+IdcFU5IHMKgpUFmmLgu1R9WBowgEKp4kSSuPTLYJkbj+h+KymU=
-----END CERTIFICATE-----
</cert>
<key>
-----BEGIN PRIVATE KEY-----
MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKYwggSiAgEAAoIBAQDGy0dxoOwIZaBl
9FEEvbMtbN/xEQI5Mr1SZA==
-----END PRIVATE KEY-----
</key>
<tls-crypt>
-----BEGIN OpenVPN Static key V1-----
bbbbe6d946248e629837b2c5f5cefb32
1d42ddd4ce88a11722a7eec378f4a83e
-----END OpenVPN Static key V1-----
</tls-crypt>

unable to connect and google oauth flow is not happening :

> openvpn3 session-start --config /custom-scripts/vpn_test/vadi.ovpn

Using configuration profile from file: /custom-scripts/vpn_test/vadi.ovpn
Session path: /net/openvpn/v3/sessions/bf968ed2s4c22s4a52s99dfsff5eed05b64e
^C!!

session-start: ** ERROR ** Session stopped

@vadirajks
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even from widows client i am not able to connect:
browser error:

https://openvpnvadi.example.com/oauth2/start?state=muz66ZCeYrzHSKz8-H-nWyxAcHWsmhHS-aDsUs5IKWrZJhIMVquLHKmlPOkijAcwsENgsUcY
502 Bad Gateway
nginx/1.14.1

logs :

2023/12/25 10:46:03 [crit] 427176#0: *18 connect() to 127.0.0.1:9000 failed (13: Permission denied) while connecting to upstream, client: 18.234.55.242, server: openvpnvadi.example.com, request: "GET /oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B HTTP/1.1", upstream: "http://127.0.0.1:9000/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B", host: "openvpnvadi.example.com"

==> /var/log/nginx/access.log <==
18.234.55.242 - - [25/Dec/2023:10:46:03 +0000] "GET /oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B HTTP/1.1" 502 575 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36" "-"

==> /var/log/messages <==
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 VERIFY OK: depth=1, CN=Easy-RSA CA
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 VERIFY OK: depth=0, CN=vadi
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_VER=3.8.2connect3
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_PLAT=win
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_NCP=2
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_TCPNL=1
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_PROTO=990
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_MTU=1600
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_CIPHERS=AES-128-CBC:AES-192-CBC:AES-256-CBC:AES-128-GCM:AES-192-GCM:AES-256-GCM:CHACHA20-POLY1305
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_AUTO_SESS=1
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_GUI_VER=OCWindows_3.4.3-3337
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 peer info: IV_SSO=webauth,crtext
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 TLS: Username/Password authentication deferred for username ''
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 TLS: move_session: dest=TM_ACTIVE src=TM_INITIAL reinit_src=1
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 TLS: tls_multi_process: initial untrusted session promoted to semi-trusted
Dec 25 10:46:03 vaditest-openvpn-google openvpn-auth-oauth2[427100]: {"time":"2023-12-25T10:46:03.242234774Z","level":"DEBUG","msg":">CLIENT:CONNECT,7,1\n>CLIENT:ENV,n_clients=0\n>CLIENT:ENV,password=\n>CLIENT:ENV,untrusted_port=52590\n>CLIENT:ENV,untrusted_ip=18.234.55.242\n>CLIENT:ENV,common_name=vadi\n>CLIENT:ENV,username=\n>CLIENT:ENV,IV_SSO=webauth,crtext\n>CLIENT:ENV,IV_GUI_VER=OCWindows_3.4.3-3337\n>CLIENT:ENV,IV_AUTO_SESS=1\n>CLIENT:ENV,IV_CIPHERS=AES-128-CBC:AES-192-CBC:AES-256-CBC:AES-128-GCM:AES-192-GCM:AES-256-GCM:CHACHA20-POLY1305\n>CLIENT:ENV,IV_MTU=1600\n>CLIENT:ENV,IV_PROTO=990\n>CLIENT:ENV,IV_TCPNL=1\n>CLIENT:ENV,IV_NCP=2\n>CLIENT:ENV,IV_PLAT=win\n>CLIENT:ENV,IV_VER=3.8.2connect3\n>CLIENT:ENV,tls_serial_hex_0=06:a0:ad:06:cb:a5:a0:5a:9e:b8:f8:99:18:b7:70:6d\n>CLIENT:ENV,tls_serial_0=8809644867331161486807943342280110189\n>CLIENT:ENV,tls_digest_sha256_0=47:37:b3:f3:bd:45:db:7b:62:87:10:c2:79:5a:9c:d3:c8:b0:6f:b5:d9:af:20:a0:82:02:0b:09:90:a3:91:0d\n>CLIENT:ENV,tls_digest_0=d2:93:86:6f:f4:90:63:f8:00:f2:39:fd:44:1b:59:12:92:7c:79:3e\n>CLIENT:ENV,tls_id_0=CN=vadi\n>CLIENT:ENV,X509_0_CN=vadi\n>CLIENT:ENV,tls_serial_hex_1=18:8b:cf:d9:1d:1f:d4:fc:32:d3:9f:56:6c:b7:43:cf:9b:de:28:42\n>CLIENT:ENV,tls_serial_1=140133688205542294345411494615504804262021310530\n>CLIENT:ENV,tls_digest_sha256_1=43:73:6a:98:ec:da:68:34:61:27:0a:6b:74:6a:44:31:d6:f8:7a:a5:dd:dc:78:61:c7:fc:b5:7b:15:a7:87:24\n>CLIENT:ENV,tls_digest_1=48:2e:06:aa:24:72:63:04:dd:0d:a9:75:f0:4d:da:96:70:62:65:b2\n>CLIENT:ENV,tls_id_1=CN=Easy-RSA CA\n>CLIENT:ENV,X509_1_CN=Easy-RSA CA\n>CLIENT:ENV,remote_port_1=1194\n>CLIENT:ENV,local_port_1=1194\n>CLIENT:ENV,local_1=10.125.71.228\n>CLIENT:ENV,proto_1=udp\n>CLIENT:ENV,daemon_pid=426812\n>CLIENT:ENV,daemon_start_time=1703497744\n>CLIENT:ENV,daemon_log_redirect=0\n>CLIENT:ENV,daemon=0\n>CLIENT:ENV,verb=3\n>CLIENT:ENV,config=server.conf\n>CLIENT:ENV,ifconfig_local=10.8.0.1\n>CLIENT:ENV,ifconfig_netmask=255.255.255.0\n>CLIENT:ENV,script_context=init\n>CLIENT:ENV,tun_mtu=1200\n>CLIENT:ENV,dev=tun0\n>CLIENT:ENV,dev_type=tun\n>CLIENT:ENV,redirect_gateway=0\n>CLIENT:ENV,END\n"}
Dec 25 10:46:03 vaditest-openvpn-google openvpn-auth-oauth2[427100]: {"time":"2023-12-25T10:46:03.242297754Z","level":"INFO","msg":"new client connection","cid":7,"kid":1,"reason":"CONNECT","common_name":"vadi","username":""}
Dec 25 10:46:03 vaditest-openvpn-google openvpn-auth-oauth2[427100]: {"time":"2023-12-25T10:46:03.24232653Z","level":"INFO","msg":"start pending auth","cid":7,"kid":1,"reason":"CONNECT","common_name":"vadi","username":""}
Dec 25 10:46:03 vaditest-openvpn-google openvpn-auth-oauth2[427100]: {"time":"2023-12-25T10:46:03.242343136Z","level":"DEBUG","msg":"client-pending-auth 7 1 \"WEB_AUTH::https://openvpnvadi.example.com/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B\" 180\n"}
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: MANAGEMENT: CMD 'client-pending-auth 7 1 "WEB_AUTH::https://openvpnvadi.example.com/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B" 180'
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: SENT CONTROL [vadi]: 'AUTH_PENDING,timeout 180' (status=1)
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: SENT CONTROL [vadi]: 'INFO_PRE,WEB_AUTH::https://openvpnvadi.example.com/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B' (status=1)
Dec 25 10:46:03 vaditest-openvpn-google openvpn-auth-oauth2[427100]: {"time":"2023-12-25T10:46:03.242898636Z","level":"DEBUG","msg":"SUCCESS: client-pending-auth command succeeded\n"}
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 Control Channel: TLSv1.3, cipher TLSv1.3 TLS_AES_256_GCM_SHA384, peer certificate: 2048 bits RSA, signature: RSA-SHA256, peer temporary key: 253 bits X25519
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 [vadi] Peer Connection Initiated with [AF_INET]18.234.55.242:52590
Dec 25 10:46:03 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 PUSH: Received control message: 'PUSH_REQUEST'

==> /var/log/nginx/error.log <==
2023/12/25 10:46:04 [crit] 427176#0: *18 connect() to 127.0.0.1:9000 failed (13: Permission denied) while connecting to upstream, client: 18.234.55.242, server: openvpnvadi.example.com, request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:9000/favicon.ico", host: "openvpnvadi.example.com", referrer: "https://openvpnvadi.example.com/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B"

==> /var/log/nginx/access.log <==
18.234.55.242 - - [25/Dec/2023:10:46:04 +0000] "GET /favicon.ico HTTP/1.1" 502 575 "https://openvpnvadi.example.com/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36" "-"

==> /var/log/messages <==
Dec 25 10:46:04 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 PUSH: Received control message: 'PUSH_REQUEST'
Dec 25 10:46:12 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 PUSH: Received control message: 'PUSH_REQUEST'
Dec 25 10:46:20 vaditest-openvpn-google openvpn[426812]: 18.234.55.242:52590 PUSH: Received control message: 'PUSH_REQUEST'

please let me know you need any details from me and thanks for taking your time helping for me :)

@jkroepke
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jkroepke commented Dec 25, 2023 •
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Hi,

sorry, but the error seems to be inside nginx

2023/12/25 10:46:04 [crit] 427176#0: *18 connect() to 127.0.0.1:9000 failed (13: Permission denied) while connecting to upstream, client: 18.234.55.242, server: openvpnvadi.example.com, request: "GET /favicon.ico HTTP/1.1", upstream: "http://127.0.0.1:9000/favicon.ico", host: "openvpnvadi.example.com", referrer: "https://openvpnvadi.example.com/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B"

Means that your nginx instance is not allow to connect to 127.0.0.1:9000 this is something outside of the control of openvpn-auth-oauth2

@vadirajks
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hey, thanks . i guess you are referring to " /favicon.ico" file and that should be okay.

@jkroepke
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2023/12/25 10:46:03 [crit] 427176#0: *18 connect() to 127.0.0.1:9000 failed (13: Permission denied) while connecting to upstream, client: 18.234.55.242, server: openvpnvadi.example.com, request: "GET /oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B HTTP/1.1", upstream: "http://127.0.0.1:9000/oauth2/start?state=mE-2pvEUHSrl9-9OwMxcwKBEGfgc02tuX4B7nZ2dieSgxlVa7wj-9lFFUbHBAhm0-AbQxB4B", host: "openvpnvadi.example.com"

here is the same error for /oauth2/start

@vadirajks
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sorry, it has blocked due to selinux.
first round I was able to connect and it worked. Later on i am not able to connect.
server log:

Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 VERIFY OK: depth=1, CN=Easy-RSA CA
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 VERIFY OK: depth=0, CN=vadi
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_VER=3.8.2connect3
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_PLAT=win
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_NCP=2
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_TCPNL=1
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_PROTO=990
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_MTU=1600
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_CIPHERS=AES-128-CBC:AES-192-CBC:AES-256-CBC:AES-128-GCM:AES-192-GCM:AES-256-GCM:CHACHA20-POLY1305
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_AUTO_SESS=1
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_GUI_VER=OCWindows_3.4.3-3337
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 peer info: IV_SSO=webauth,crtext
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 TLS: Username/Password authentication deferred for username ''
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 TLS: move_session: dest=TM_ACTIVE src=TM_INITIAL reinit_src=1
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 TLS: tls_multi_process: initial untrusted session promoted to semi-trusted
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 Control Channel: TLSv1.3, cipher TLSv1.3 TLS_AES_256_GCM_SHA384, peer certificate: 2048 bits RSA, signature: RSA-SHA256, peer temporary key: 253 bits X25519
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 [vadi] Peer Connection Initiated with [AF_INET]54.164.78.183:53754
Dec 26 09:42:12 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:13 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:15 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:18 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:21 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:24 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:27 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:30 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:33 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:36 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:39 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:42 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:45 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:48 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:51 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:54 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:42:57 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:43:00 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:43:03 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:43:06 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'
Dec 26 09:43:09 vaditest-openvpn-google openvpn[2363]: 54.164.78.183:53754 PUSH: Received control message: 'PUSH_REQUEST'

windows vpn client log:

⏎[Dec 26, 2023, 09:42:12] EVENT: CONNECTING ⏎[Dec 26, 2023, 09:42:12] Tunnel Options:V4,dev-type tun,link-mtu 1521,tun-mtu 1500,proto UDPv4,cipher AES-128-GCM,auth [null-digest],keysize 128,key-method 2,tls-client
⏎[Dec 26, 2023, 09:42:12] Creds: UsernameEmpty/PasswordEmpty
⏎[Dec 26, 2023, 09:42:12] Sending Peer Info:
IV_VER=3.8.2connect3
IV_PLAT=win
IV_NCP=2
IV_TCPNL=1
IV_PROTO=990
IV_MTU=1600
IV_CIPHERS=AES-128-CBC:AES-192-CBC:AES-256-CBC:AES-128-GCM:AES-192-GCM:AES-256-GCM:CHACHA20-POLY1305
IV_AUTO_SESS=1
IV_GUI_VER=OCWindows_3.4.3-3337
IV_SSO=webauth,crtext

⏎[Dec 26, 2023, 09:42:12] SSL Handshake: peer certificate: CN=server, 2048 bit RSA, cipher: TLS_AES_256_GCM_SHA384         TLSv1.3 Kx=any      Au=any   Enc=AESGCM(256)            Mac=AEAD

⏎[Dec 26, 2023, 09:42:12] Session is ACTIVE
⏎[Dec 26, 2023, 09:42:12] EVENT: GET_CONFIG ⏎[Dec 26, 2023, 09:42:12] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:13] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:15] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:18] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:21] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:24] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:27] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:30] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:33] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:36] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:39] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:42] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:45] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:48] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:51] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:54] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:42:57] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:43:00] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:43:03] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:43:06] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:43:09] Sending PUSH_REQUEST to server...
⏎[Dec 26, 2023, 09:43:11] EVENT: CONNECTION_TIMEOUT  BYTES_IN : 5120
 BYTES_OUT : 5920
 PACKETS_IN : 28
 PACKETS_OUT : 30
 CONNECTION_TIMEOUT : 1
⏎[Dec 26, 2023, 09:43:11] EVENT: DISCONNECTED ⏎

restarting all didn't help.

@jkroepke
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jkroepke commented Dec 26, 2023 •
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first round I was able to connect and it worked. Later on i am not able to connect.

Thats an known bug in OpenVPN 3 Connect Software (ref: OpenVPN/openvpn3#282) - the next version will introduce a new parameter --oauth2.refresh.enabled=true to mitigate the issue.

@vadirajks
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great!!..thankyou
i have below options in the config:
CONFIG_OAUTH2_REFRESH_ENABLED=true
CONFIG_OAUTH2_REFRESH_EXPIRES=24h
with this it should work correct if we don't restart it.

@jkroepke
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with this it should work correct if we don't restart it.

Mention that this feature is not released yet. After next release, it should work.

@vadirajks
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vadirajks commented Dec 26, 2023 •
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sure, thanks.
one more help , can you please let me know why it was not able connect from cli/command in Ubuntu. Is there anything i need to rebuild the package with the newer version?.

@jkroepke
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Are you using OpenVPN 2 or OpenVPN 3 connect on Ubuntu?

Do you have any Desktop environment on Ubuntu or pure CLI?

@vadirajks
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i have all 3 in my desktop and either of this didn't work. Just wanted to test this too to make sure it works for future use.

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 23.10
Release: 23.10
Codename: mantic

@jkroepke
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jkroepke commented Dec 26, 2023 •
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You have to use OpenVPN 3 Connect for Linux, then it should work. Then builtin openvpn via apt install openvpn or the integrated OpenVPN inside Network Manager does not support modern auth.

@jkroepke jkroepke closed this as completed Jan 4, 2024
@Mhm0ud Mhm0ud mentioned this issue Feb 15, 2024
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Add more details docs to GCP Provider Mhm0ud/openvpn-auth-oauth2
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@jkroepke @vadirajks