Nginx does not send SERVER CERTIFICATE after SERVER HELLO Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) Come Celebrate our 10 Year Anniversary!tcpdump Server Hello Certificate FilterNginx doesn't send certificate chainHow to configure IIS 7.5 SSL TLS to work with iOS 9 ATSDrupal 7 login does not work on NGINX after enabling SSL with LetsencryptHow to build Apache httpd 2.4.20 on CentOS 7 with http2 support?What's different between 'Using-Default-VirtualHost' and 'Using-Correctly-Named-VirtualHost'?Check if Windows Server 2008R2 can use TLS 1.2Troubleshooting Cipher handshake issueNeed help to establish secure ftp connection from linux to z/OS FTPS serverlftp 4.8.4 refuses to talk TLS1.2 with z/OS ftps host

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Nginx does not send SERVER CERTIFICATE after SERVER HELLO



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
Come Celebrate our 10 Year Anniversary!tcpdump Server Hello Certificate FilterNginx doesn't send certificate chainHow to configure IIS 7.5 SSL TLS to work with iOS 9 ATSDrupal 7 login does not work on NGINX after enabling SSL with LetsencryptHow to build Apache httpd 2.4.20 on CentOS 7 with http2 support?What's different between 'Using-Default-VirtualHost' and 'Using-Correctly-Named-VirtualHost'?Check if Windows Server 2008R2 can use TLS 1.2Troubleshooting Cipher handshake issueNeed help to establish secure ftp connection from linux to z/OS FTPS serverlftp 4.8.4 refuses to talk TLS1.2 with z/OS ftps host



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1















I have an NGINX site that randomly produces connection failures during the TLS handshake. I investigated the issue using curl --trace and found that every other request times out because the server does not continue with the server certificate after server hello of the SSL handshake protocol. Here's the curl trace log:



== Info: Trying 123.11.22.109...
== Info: TCP_NODELAY set
== Info: Connected to registry.my-server.com (123.11.22.109) port 443 (#0)
== Info: ALPN, offering h2
== Info: ALPN, offering http/1.1
== Info: successfully set certificate verify locations:
== Info: CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
=> Send SSL data, 5 bytes (0x5)
0000: 16 03 01 00 de .....
== Info: TLSv1.2 (OUT), TLS handshake, Client hello (1):
=> Send SSL data, 222 bytes (0xde)
0000: 01 00 00 da 03 03 fa b3 b2 20 05 26 50 37 c2 4c ......... .&P7.L
0010: 7f e7 8d 3e 87 25 95 43 7f c2 bd 73 b2 1a ea c3 ..>.%.C..s....
(rest omitted...)
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 00 6c ....l
== Info: TLSv1.2 (IN), TLS handshake, Server hello (2):
<= Recv SSL data, 108 bytes (0x6c)
0000: 02 00 00 68 03 03 ab 7f 0e 88 9a b0 00 22 87 a4 ...h........"..
0010: cb f5 c7 64 46 62 e2 6e bc a7 52 2a 4b 26 a2 0f ...dFb.n..R*K&..
0020: d3 f9 e3 7e c5 c0 20 49 e9 89 dd 4b 73 92 21 28 ...~.. I...Ks.!(
0030: 82 24 df e8 dc ac 20 98 fe d0 36 6d 9f 49 7f 36 .$.... ...6m.I6
0040: 8a 8b 2b 54 f8 63 4c c0 30 00 00 20 00 00 00 00 ..+T.cL.0.. ....
0050: ff 01 00 01 00 00 0b 00 04 03 00 01 02 00 10 00 ................
0060: 0b 00 09 08 68 74 74 70 2f 31 2e 31 ....http/1.1
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 15 30 ....0
== Info: Operation timed out after 300869 milliseconds with 0 out of 0 bytes received


This does not occur with every connection, only maybe every 8th connection. I couldn't make out a pattern yet. The issue started occurring suddenly, the configuration ran without any problems for months before.



Any clues?










share|improve this question







New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • I cannot reproduce the issue anymore, it went over night.

    – Efrain
    Apr 11 at 11:55











  • Even in that case you can post your own answer and accept it.

    – Lex Li
    Apr 11 at 16:03

















1















I have an NGINX site that randomly produces connection failures during the TLS handshake. I investigated the issue using curl --trace and found that every other request times out because the server does not continue with the server certificate after server hello of the SSL handshake protocol. Here's the curl trace log:



== Info: Trying 123.11.22.109...
== Info: TCP_NODELAY set
== Info: Connected to registry.my-server.com (123.11.22.109) port 443 (#0)
== Info: ALPN, offering h2
== Info: ALPN, offering http/1.1
== Info: successfully set certificate verify locations:
== Info: CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
=> Send SSL data, 5 bytes (0x5)
0000: 16 03 01 00 de .....
== Info: TLSv1.2 (OUT), TLS handshake, Client hello (1):
=> Send SSL data, 222 bytes (0xde)
0000: 01 00 00 da 03 03 fa b3 b2 20 05 26 50 37 c2 4c ......... .&P7.L
0010: 7f e7 8d 3e 87 25 95 43 7f c2 bd 73 b2 1a ea c3 ..>.%.C..s....
(rest omitted...)
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 00 6c ....l
== Info: TLSv1.2 (IN), TLS handshake, Server hello (2):
<= Recv SSL data, 108 bytes (0x6c)
0000: 02 00 00 68 03 03 ab 7f 0e 88 9a b0 00 22 87 a4 ...h........"..
0010: cb f5 c7 64 46 62 e2 6e bc a7 52 2a 4b 26 a2 0f ...dFb.n..R*K&..
0020: d3 f9 e3 7e c5 c0 20 49 e9 89 dd 4b 73 92 21 28 ...~.. I...Ks.!(
0030: 82 24 df e8 dc ac 20 98 fe d0 36 6d 9f 49 7f 36 .$.... ...6m.I6
0040: 8a 8b 2b 54 f8 63 4c c0 30 00 00 20 00 00 00 00 ..+T.cL.0.. ....
0050: ff 01 00 01 00 00 0b 00 04 03 00 01 02 00 10 00 ................
0060: 0b 00 09 08 68 74 74 70 2f 31 2e 31 ....http/1.1
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 15 30 ....0
== Info: Operation timed out after 300869 milliseconds with 0 out of 0 bytes received


This does not occur with every connection, only maybe every 8th connection. I couldn't make out a pattern yet. The issue started occurring suddenly, the configuration ran without any problems for months before.



Any clues?










share|improve this question







New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • I cannot reproduce the issue anymore, it went over night.

    – Efrain
    Apr 11 at 11:55











  • Even in that case you can post your own answer and accept it.

    – Lex Li
    Apr 11 at 16:03













1












1








1








I have an NGINX site that randomly produces connection failures during the TLS handshake. I investigated the issue using curl --trace and found that every other request times out because the server does not continue with the server certificate after server hello of the SSL handshake protocol. Here's the curl trace log:



== Info: Trying 123.11.22.109...
== Info: TCP_NODELAY set
== Info: Connected to registry.my-server.com (123.11.22.109) port 443 (#0)
== Info: ALPN, offering h2
== Info: ALPN, offering http/1.1
== Info: successfully set certificate verify locations:
== Info: CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
=> Send SSL data, 5 bytes (0x5)
0000: 16 03 01 00 de .....
== Info: TLSv1.2 (OUT), TLS handshake, Client hello (1):
=> Send SSL data, 222 bytes (0xde)
0000: 01 00 00 da 03 03 fa b3 b2 20 05 26 50 37 c2 4c ......... .&P7.L
0010: 7f e7 8d 3e 87 25 95 43 7f c2 bd 73 b2 1a ea c3 ..>.%.C..s....
(rest omitted...)
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 00 6c ....l
== Info: TLSv1.2 (IN), TLS handshake, Server hello (2):
<= Recv SSL data, 108 bytes (0x6c)
0000: 02 00 00 68 03 03 ab 7f 0e 88 9a b0 00 22 87 a4 ...h........"..
0010: cb f5 c7 64 46 62 e2 6e bc a7 52 2a 4b 26 a2 0f ...dFb.n..R*K&..
0020: d3 f9 e3 7e c5 c0 20 49 e9 89 dd 4b 73 92 21 28 ...~.. I...Ks.!(
0030: 82 24 df e8 dc ac 20 98 fe d0 36 6d 9f 49 7f 36 .$.... ...6m.I6
0040: 8a 8b 2b 54 f8 63 4c c0 30 00 00 20 00 00 00 00 ..+T.cL.0.. ....
0050: ff 01 00 01 00 00 0b 00 04 03 00 01 02 00 10 00 ................
0060: 0b 00 09 08 68 74 74 70 2f 31 2e 31 ....http/1.1
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 15 30 ....0
== Info: Operation timed out after 300869 milliseconds with 0 out of 0 bytes received


This does not occur with every connection, only maybe every 8th connection. I couldn't make out a pattern yet. The issue started occurring suddenly, the configuration ran without any problems for months before.



Any clues?










share|improve this question







New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I have an NGINX site that randomly produces connection failures during the TLS handshake. I investigated the issue using curl --trace and found that every other request times out because the server does not continue with the server certificate after server hello of the SSL handshake protocol. Here's the curl trace log:



== Info: Trying 123.11.22.109...
== Info: TCP_NODELAY set
== Info: Connected to registry.my-server.com (123.11.22.109) port 443 (#0)
== Info: ALPN, offering h2
== Info: ALPN, offering http/1.1
== Info: successfully set certificate verify locations:
== Info: CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
=> Send SSL data, 5 bytes (0x5)
0000: 16 03 01 00 de .....
== Info: TLSv1.2 (OUT), TLS handshake, Client hello (1):
=> Send SSL data, 222 bytes (0xde)
0000: 01 00 00 da 03 03 fa b3 b2 20 05 26 50 37 c2 4c ......... .&P7.L
0010: 7f e7 8d 3e 87 25 95 43 7f c2 bd 73 b2 1a ea c3 ..>.%.C..s....
(rest omitted...)
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 00 6c ....l
== Info: TLSv1.2 (IN), TLS handshake, Server hello (2):
<= Recv SSL data, 108 bytes (0x6c)
0000: 02 00 00 68 03 03 ab 7f 0e 88 9a b0 00 22 87 a4 ...h........"..
0010: cb f5 c7 64 46 62 e2 6e bc a7 52 2a 4b 26 a2 0f ...dFb.n..R*K&..
0020: d3 f9 e3 7e c5 c0 20 49 e9 89 dd 4b 73 92 21 28 ...~.. I...Ks.!(
0030: 82 24 df e8 dc ac 20 98 fe d0 36 6d 9f 49 7f 36 .$.... ...6m.I6
0040: 8a 8b 2b 54 f8 63 4c c0 30 00 00 20 00 00 00 00 ..+T.cL.0.. ....
0050: ff 01 00 01 00 00 0b 00 04 03 00 01 02 00 10 00 ................
0060: 0b 00 09 08 68 74 74 70 2f 31 2e 31 ....http/1.1
<= Recv SSL data, 5 bytes (0x5)
0000: 16 03 03 15 30 ....0
== Info: Operation timed out after 300869 milliseconds with 0 out of 0 bytes received


This does not occur with every connection, only maybe every 8th connection. I couldn't make out a pattern yet. The issue started occurring suddenly, the configuration ran without any problems for months before.



Any clues?







nginx ssl https






share|improve this question







New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked Apr 10 at 14:18









EfrainEfrain

1061




1061




New contributor




Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Efrain is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • I cannot reproduce the issue anymore, it went over night.

    – Efrain
    Apr 11 at 11:55











  • Even in that case you can post your own answer and accept it.

    – Lex Li
    Apr 11 at 16:03

















  • I cannot reproduce the issue anymore, it went over night.

    – Efrain
    Apr 11 at 11:55











  • Even in that case you can post your own answer and accept it.

    – Lex Li
    Apr 11 at 16:03
















I cannot reproduce the issue anymore, it went over night.

– Efrain
Apr 11 at 11:55





I cannot reproduce the issue anymore, it went over night.

– Efrain
Apr 11 at 11:55













Even in that case you can post your own answer and accept it.

– Lex Li
Apr 11 at 16:03





Even in that case you can post your own answer and accept it.

– Lex Li
Apr 11 at 16:03










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