When I try to go to the main page I get an infinite redirect. Until my browser gives up and gives me an "error: redirect error".
I guess I might have a thinking error somewhere or a bug in traefik, I'm not a traefik expert ^^
Because of my little experience with traefik, I had rather used an extra subdomain and not the path "/admin". I think it is actually nicer to reach the admin interface at vpn.example.com/admin.
curl https://vpnadmin.example.com -v -L -u "username:123456"
* Trying 1.2.3.4:443...
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* CAfile: /etc/ssl/certs/ca-certificates.crt
* CApath: /etc/ssl/certs
* TLSv1.0 (OUT), TLS header, Certificate Status (22):
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS header, Certificate Status (22):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS header, Finished (20):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.2 (OUT), TLS header, Finished (20):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / TLS_CHACHA20_POLY1305_SHA256
* ALPN, server accepted to use h2
* Server certificate:
* subject: CN=vpnadmin.example.com
* start date: Mar 28 22:22:23 2023 GMT
* expire date: Jun 26 22:22:22 2023 GMT
* subjectAltName: host "vpnadmin.example.com" matched cert's "vpnadmin.example.com"
* issuer: C=US; O=Let's Encrypt; CN=R3
* SSL certificate verify ok.
* Using HTTP2, server supports multiplexing
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* Server auth using Basic with user 'alex'
* Using Stream ID: 1 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Connection state changed (MAX_CONCURRENT_STREAMS == 250)!
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 3 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 5 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 7 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 9 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: b (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: d (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: f (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 11 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 13 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 15 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:16 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
............ <truncated> ....................
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Issue another request to this URL: 'https://vpnadmin.example.com/'
* Found bundle for host vpnadmin.example.com: 0x562671e1dff0 [can multiplex]
* Re-using existing connection! (#0) with host vpnadmin.example.com
* Connected to vpnadmin.example.com (1.2.3.4) port 443 (#0)
* Server auth using Basic with user 'alex'
* Using Stream ID: 65 (easy handle 0x562671e24e90)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET / HTTP/2
> Host: vpnadmin.example.com
> authorization: Basic <censored>
> user-agent: curl/7.81.0
> accept: */*
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 308
< content-type: text/html; charset=utf-8
< date: Wed, 29 Mar 2023 07:57:17 GMT
< location: https://vpnadmin.example.com/
< server: gunicorn
< content-length: 239
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* Ignoring the response-body
* Connection #0 to host vpnadmin.example.com left intact
* Maximum (50) redirects followed
curl: (47) Maximum (50) redirects followed
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