Haproxy ssl handshake failure. 0001) S>C TCP FIN So to me it looks … Haproxy 3.

Haproxy ssl handshake failure 2 disabled TLSv1. log # log 127. 203. Any thoughts are much appreciated. 11 ( Kubernetes Ingress 1. ddavis29860 September 18, 2024, 2:03am HAProxy backend/server to specific destination using SSL and SNI returns "OpenSSL error[0x14094410] ssl3_read_bytes: sslv3 alert handshake failure" 0 Serving LDAPS lookups over HAProxy, unable to bind in testing I have set up a HAProxy-instance that should: offload SSL on the frontend onload SSL on the backend use SNI for the connections and the healthchecks towards the upstreams For this demonstration I Server api_statusio/test2 is DOWN, reason: Socket error, info: "SSL handshake failure", check duration: 111ms. Behind HA proxy there’s 6 web servers. 30. acme client says everything is ok and renewing certs was also successful. I assume there entire heartbeat detection is broken after all the changes since 2014, and this is now a false positive. Well, since yesterday afternoon (Tuesday the 2nd), HAProxy can also offload the client certificate management from the server with some check port 80 check-ssl - reason: Layer6 invalid response, info: “SSL handshake failure” Just like in a Browser, when you connect HTTPS to port 80, the handshake will fail, because Google and everybody else is not terminating SSL on port 80. 8) Help! 3: 1676: November 13, 2019 Tons of "ssl_termination/1: SSL handshake failure" Help! 6: 1375: September 20, 2019 Trying to install SSL Cert for use with HAPROXY. Help! 6: 6706: June 7, 2022 TCP - Check ssl question. Help! 8: 4057: December 2, 2021 Haproxy 3. 312] HTTP/3: SSL handshake failure Lines such as these are created around thirty times per second. HAProxy backend server returns "SSL handshake error" 0. This “client hello” message lists cryptographic information, including the SSL version to use to communicate with each other. The only information related to haproxy and openssl that I When starting HAProxy the backend will report all servers as down: Server web_remote/apache_rem_1 is DOWN, reason: Layer6 invalid response, info: "SSL handshake failure", check duration: 41ms. _version=2187 Dataplaneapi managed File changing file directly can cause a conflict if Haproxy w/ssl 'SSL handshake failure' Help! 3: 6663: February 10, 2023 SSL termination does not work correctly (v2. nginx seems to be ignoring ssl_ciphers setting. 0. I am running HAP 2. You switched accounts on another tab or window. 8 SSL handshake failure. ssl_sni -i www. com bind :1234 ssl crt /etc/ssl/pem/mycert. 1% of traffic to the new haproxy machine, however there are no SSL handshake failures on the old haproxy version. foo. curl: (60) SSL certificate : unable to get local issuer certificate - ubuntu. It had to do with TLS Extended Master Secret and the BIG-IP was failing to decrypt the handshake. When it comes to that limit, I see rate of new requests lowers down to 2-5 Haproxy log become mostly filled with tls/1: SSL handshake failure errors. 7. The configuration for the backend is as follows: HAProxy `SSL handshake failure` when proxing request from another server. Help! 2: 2842: May 3, 2023 Trying to install SSL Cert for use with HAPROXY. I want to accept connections on port 8443, using SSL with a self signed cert, and forward to a backend on port 8000. One backend is used for connecting an external rest api over SSL(https). com use And I configured HAProxy to perform SSL/TLS bridging/re-encryption. The exact steps in an SSL handshake vary depending on the version of SSL the client and server decide to use, but the general process is outlined below. Help! 10: 10632: January 7, 2019 Using reverse proxy with secured web sockets (WSS) Help! 3: 16197: April 17, 2023 Home ; Categories ; Guidelines Hello all. However, as global log 127. I would like to make a re-encryption on the backend side, but the ssl/tls check gives me the famous ‘Layer6 invalid response: SSL handshake failure’, in tcpdump ‘Unknown CA (48)’. 168. Help! 6: 1848: September 22, 2023 Getting pfsense/HAproxy to work behind SSL alert number 40 really just means handshake failure, which is not very informative. 8 as HTTPS termination proxy in a VPN. pid maxconn 4000 user haproxy group haproxy stats socket /var/lib/haproxy/stats #----- # common defaults that all the 'listen' and 'backend' sections will # use if not designated in their block #----- defaults mode tcp log global option tcplog option Having rare ERR_SSL_PROTOCOL_ERROR error in browser while using own proxy with haproxy routing all on the server in one port. There are many reason for an SSL handshake failure to occur in HAProxy: Invalid SSL certificate: The SSL handshake will fail if the SSL certificate supplied by the backend server is invalid, expired, or not issued by a trustworthy Certificate Authority (CA). Haproxy logs on 1. I’m using HA-Proxy version 1. Requests are working as expected. pem crt /etc/ssl/certsforhaproxy/test2. el7 plus openssl 1. xx. The certificate I am using was issued by let's encrypt. y. Disabling CCS on the same site binding and selecting the same certificate manually all works fine. com:8081" as navigation proxy | (https) | V HaProxy : Frontend is configured to receive https request on port 8081 Backend configured forward to I’m getting a number of these per day, one burst every 5-10 minutes. It’s possible I’m not understanding the difficulties with what I’m trying to do. How to make HAProxy's SSL redirect and path rewrite (with reqrep) work at the same time? 1. But Socket is not connecting from client. SSL/TLS. Help! 2: 2817: May 3, 2023 Haproxy w/ssl 'SSL handshake failure' Help! 3: 7761: February 10, 2023 Trying to install SSL Cert for use with HAPROXY. 133:443 ssl strict-sni crt /etc/haproxy/ssl/ mode http (set/modify some headers in request and response) use_backend app1 if { hdr_end(host) -i app1. Help! 1: 501: November 7, 2023 CRITICAL - HAProxy SSL Handshake failure issue. ### Expected Behavior Return SNI value. Hi, if you want the association between handshake failure and ip source, you must check the log. Encrypt traffic using SSL/TLS. The certificate files are concatenated and each file is just contains one certificate. I ha When I try to use the PROXY protocol and add the send-proxy and expect-proxy, I get SSL Handshake failures. Our test server forces TLSv1. If I Detailed description of the problem I use log 127. Scenario: I have an old hp dl360 g7 with iLO 3. Possibly, it is not a problem, because conditions are very specific and the same shows also qdisc-method. Question: I would like to know if there's something wrong with my configuration, or 1% failure rate is Removed h2 alpn in haproxy. Help! 10: 10612: January 7, 2019 Route TCP according to payload. nginx). SSL handshake failure. 3 in docker (default image) on both servers. After upgrading from 1. Help! 10 SSL_connect:before/connect initialization SSL_connect:SSLv2/v3 write client hello A SSL_connect:SSLv3 read server hello A SSL_connect:SSLv3 read server certificate A SSL_connect:SSLv3 read server certificate request A SSL_connect:SSLv3 read server done A SSL_connect:SSLv3 write client certificate A SSL_connect:SSLv3 write client key exchange A Hi I’m trying to do a very simple HTTP to HTTPS redirect. Hi there I have a big issue regarding connection Haproxy to mysql throught ssl with mysql self signed cert. I am terminating SSL at the load balancer (HAProxy 1. Secure Sockets Layer TLSv1. 120; set_real_ip_from 10. Dark. Do you have any additional logs from your backend server? Could it be that it just needs SNI or perhaps there is a ciphers mismatch? frontend http_in bind *:80 bind *:443 ssl crt /etc/ssl/certsforhaproxy/test1. Why the CA file and SSL verify doesn't work?. Help! 3: 1799: June 22, 2017 SSL handshake failure hangs HAProxy. Secure Sockets Layer (SSL) and Transport Layer Security (TLS) are protocols used to authenticate data transfers between servers and external systems such as browsers. You signed in with another tab or window. 2k, and some clients are getting random SSL handshake errors. 960] https-in/1: SSL handshake failure For others that stumble upon this, I can add that I had luck using tshark to monitor the traffic on the interface when I had TLS errors that were not really clear in the haproxy logs. 0 HA Proxy - Failure to make ssl_fc_sni apply to SSL connections. I’ve been reluctant to change the SSL settings from standard to not risk angering the SSLLabs and other security metrics. SSL handshake failure error:0A000416. Simply reloading the page often fixes the problem, but sometimes multiple reloads are needed before the correct certificate is sent. pem ca-file /etc/ssl/certsforhaproxy/ca. 2 Haproxy ssl redirect handshake failure. trigger a SSL handshake failure (for example with mismatching SSL haproxy[12734]: Server https_backend/s1 is DOWN, reason: Layer6 invalid response, info: "SSL handshake failure (Connection reset by peer)", check duration: 1ms. Help! 0: 2051: July 18, 2018 Haproxy w/ssl 'SSL handshake failure' Help! 3: 7852: February 10, 2023 How to silent 'SSL handshake failure' logs. HAproxy SSL handshake failure. 8 version CRITICAL - HAProxy SSL Handshake failure issue. 225. haproxy[12734]: Server https_backend/s1 is DOWN, reason: Layer6 invalid response, info: "SSL handshake My haproxy frontend config looks like this: frontend testthing. w:47996 [12/Ju How to overcome and correct the SSL handshake failure with the above configuration; I found in Internet that SSL handshake may happen due to the below scenarios. CRITICAL - HAProxy SSL Handshake Somehow all the other posts don’t specifically solve my issue so Hi all, I have two backend servers that are running on Port 443 SSL via IIS using the CCS (Centralized Certification Server) module. but it looks like there is a problem on the HAproxy side. Help! 5: 9781: July 12, 2017 This configuration is wrong for multiple reasons, SSL specific settings like ciphers or TLS versions are not your problem. 2 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company #----- # Global settings #----- global log 127. 294] www-https/1: SSL handshake failure Means we fixed the issue. As far http1. The fix was adding the following lines to A user asks for help with troubleshooting SSL Handshake Failure on backend servers when using a PEM file for SSL verification. Upon further investigation >90% of the IPs are Apple Hello I have a setup with HAProxy Client side certificate verification required. Log is full of: https/0. 2. From time to time we get the following messages in HAProxy log (source IP is hidden): Jul 12 15:43:36 hap-01 haproxy[26141]: x. Is it possible in HAproxy to connect an internal RDP server through an HTTPS connection? Related Haproxy health check on https backend strange results. 241. 2 HAProxy backend/server to specific destination using SSL and SNI returns "OpenSSL error[0x14094410] ssl3_read_bytes: sslv3 alert handshake failure" 1 TLS handshake fails intermittently when using HAProxy Ingress Controller. From investigating 1 affected IP my findings were: The log message “Connection closed during SSL handshake” occurs when there is no Haproxy 1. , nginx in front of haproxy. ssl_sni len 100 Note tcp-request content capture req. So accept-proxy belongs on a bind line that recieves traffic from another haproxy instance configured on the backend with send-proxy. Port 443 serves everything and port 80 redirects to 443. 5), the access. yy. Haproxy ssl redirect handshake failure. Both aplications run on the same machine and I have been able to make it work over http with the following config: global log 127. Additionally, check backend SSL certificates for validity. 2 haproxy ssl_fc_sni not matching correctly. ; Add another HAProxy logs just report a SSL handshake failure. I am using HAproxy to terminate TLS (and later also load balance) RabbitMQ (MQTT). 10. xyz:443 check Now I would like to use SNI to have option to route ssl The history of SSL in HAProxy is very short: around one month ago, we announced the ability for HAProxy to offload SSL from the servers. 2 HAProxy backend/server to specific destination using SSL and SNI returns "OpenSSL error[0x14094410] ssl3_read_bytes: sslv3 alert handshake failure" 0 HAProxy Backend Layer7 Invalid Response Stack Exchange Network. 0. I am passing ssl traffic from the NLB to HAProxy and then SSL offloading is taking place on HAProxy. Another user suggests checking the SSL is complicated, full haproxy config, output of haproxy -vv as well as the full openssl command line are required at the very least to give a proper answer, but a tcpdump of Resolve HAProxy backend SSL handshake failures with our troubleshooting guide. WARNING: None of the ciphers specified are supported by the SSL engine. demo. However the log files are getting flooded with the following messages. Help! 9: 7142: May 23, 2018 Haproxy 1. It is impossible to replace any part of the TLS handshake, including SNI. c:177: no peer certificate available No client certificate CA names sent The Pre-defined ACL HTTP is defined as req. Help! 0: 2028: July 18, 2018 SSL handshake failure. There are probably thirty or forty IP addresses (mostly IPv6 addresses) trying and failing endlessly. com How can I get haproxy to completely ignore SSL handshake errors? Detailed Description of the Problem I am not 100% whether this is due to misconfiguration or if I hit a bug here. HAProxy SSL stack comes with some advanced features like TLS extension SNI. Haproxy w/ssl 'SSL handshake failure' Help! 3: 7946: February 10, 2023 Http backend checks failing with http/400; but curl to same url gives http/200 as expected. com maps, adding the API key to all passing requests. I am really bad with this kind of proxy especially because it is on opensense. domain. z. Protocol Mismatch -Tested all the TLS version(TLS 1. – Filipe Giusti. Help! Nrogerdlm January 13, 2023, 2:36pm 1. Expected Behavior current client will get curl: (52) Empty reply from server and haproxy server log https/v4: SSL handshake failure my haproxy version: 2. You signed out in another tab or window. com } backend Apache benchmark shows a lot of SSL failures during reloads. Just recently I was tasked to have haproxy listen for https connections specifically. 1 local2 chroot /var/lib/haproxy pidfile /var/run/haproxy. 429] https_frontend_test/1: SSL handshake failure Jan 4 14:33:41 haproxy[60533]: *IP*:61443 [04/Jan/2024:14:33:41. If it doesn’t, it will not work. (0) Jan 11 16:34:30 srv-ubuntux64 haproxy[57679]: [NOTICE] (57679) : New worker #1 (57681) forked Jan 11 16:34:32 srv-ubuntux64 haproxy[57681]: Server Other_Server/srv-1 is DOWN, reason: Layer6 invalid response, info: "SSL handshake failure", check duration: 7ms. Help! 0: 2020: July 18, 2018 SSL handshake failure. 5 SSL \ TLS to work with iOS 9 ATS. xx:55815 [09/Sep/2016:09:39:17. Help! 1: 194: July 6, 2024 It's a logical mapping internal to the haproxy process. HAProxy config tutorials HAProxy config tutorials. 5 SSL and many website. HAproxy: Redirect to https in backend. HAProxy 1. I have my HAProxy setup with let’s Encrypt and everything is working well. 7 LTS We are seeing a large amount of “Connection closed during SSL handshake” messages logged - 25% of messages logged. Once traffic is decrypted it can be inspected and modified by HAProxy, such as to alter HTTP headers, route based on Hi, I trying to setup a HTTPS frontend with ACL to HTTPS backends for Ubuntu and RHEL private repositories at our company. When I do HTTP frontend and ACL to HTTPS Hello community, I’m trying to setup a reverse HAProxy to connect to a forward, LDAP auth based Squid. There's three types of errors repeating: Connection closed during SSL handshake Timeout during SSL handshake SSL handshake failure (this one happens rarely) To re-iterate, serv1 on its own or together with serv2 works fine. So openssl and the cert are not generally broken. I came a bit further by adding the following to the above config, but this produces “load-balancer/2: SSL handshake failure” in the HAProxy logs. SSL/TLS Handshake Failure. pem mode tcp log-format "%ci:%cp [%t] %ft %b/%s %Tw/%Tc/%Tt Can anybody confirm whether stick-tables are run before or after the SSL handshake is checked? We are getting attacks by bots intentionally not using the correct client certificate that we set, and we want to make sure the stick table rules are applied even if the client fails SSL handshaking. 11) HAProxy community In https port redirect http to https. The two lines that you have addded ensure that HAProxy has enough time to read the SNI header before chooisng a backend, and also checking it is actually SSL traffic (else rejecting it). peer closed connection in SSL handshake while SSL handshaking to upstream. 468] http-in/2: SSL handshake failure (error:0A0000EA:SSL routines::callback failed) Nov 18 12:47:14 mail haproxy[126258]: Proxy http-in stopped (cumulated conns: FE: 866, BE: 0). Since switching, I keep getting some SSL connection errors in the HAProxy log (5-10% of the total number of requests). com tcp-request content capture req. It seems to work correctly, as the landing page displays correctly. The result is TLSv1. 5dev19). I’m trying to setup something like this: Client : Uses "https://proxy. I’m troubled with the error I cannot reach my services (nextcloud + homeassistant) and shows that the cert is expired. xxx. Can get error on randome websites 1 Hi everybody, I’m using Haproxy to offload SSL so that I can connect using HTTPS to a service (running in my backend) which is HTTP only. 40. 734] authentication_service/1: SSL handshake failure. So I’ve “dumped” the SSL communication and it has only this: 1 0. Client-side encryption; OCSP stapling; Server-side encryption; Client-side encryption. When doing so I get TLS errors on the browsers (NET::ERR_CERT_INVALID) and when doing apt update I get : gnutls_handshake() failed: The TLS connection was non-properly terminated. 4 haproxy Server XXXXX is DOWN, reason: Layer4 timeout. 503 Service Unavailable No server is available to handle this request. The HAProxy log for the failure is: Jan 3 14:21:08 serv-2 haproxy[9075]: [client ip address]:xyz [03/Jan/2015:14:21:08. 3 enabled TLS Fallback SCSV: Server supports TLS Fallback SCSV TLS renegotiation: Session renegotiation not supported TLS Compression: OpenSSL version does not support compression Rebuild with zlib1g-dev package for zlib support Hi @lukastribus,. 0 sessions active, 0 requeued, 0 remaining in Sorry to bump this thread, just wanted to share the resolution / fix that needs to be applied on nginx to get it to work with HAProxy: set_real_ip_from 10. pid maxconn 4000 user haproxy group haproxy daemon tune. 6 - Backend ssl handshake failure. Route the requests based on SNI header as answered in How haproxy uses sni to spread traffic, my preferred solution. I tested the same over http it is In my logs, I have tens of thousands of lines such as this one: Nov 8 23:33:00 server-1 haproxy[30937]: 96. Modern browsers can't access it because it uses ancient ciphers. How to configure IIS 7. 2 (0x0303) Length: 77 Handshake Protocol: Certificate Handshake Type: Certificate (11) Length: 3 Certificates Length: 0 Handshake Protocol: Client Key Exchange Handshake Type: Client Key Exchange (16) SSL/TLS Protocols: SSLv2 disabled SSLv3 disabled TLSv1. 6 and trying to setup some sites with SSL on the IIS web-server behind the HAProxy. No luck. I can't find it in the docs, but by experimenting i found it's the number of port in frontend, to which connection was attempted and SSL handshake failed. I’ve concatenated Private key + FullChain key into a file for those which I’ve create with Cloudflare bot, and I’ve concatenated Private key + Public key + CA root key for those which I’ve created on the Cloudflare origin certificate page. Hello, I have two servers with HAProxy, let’s call them “Passthrough” and “App”. However when doing a request the response is a 502 Bad Gateway and in in the debug logs of the destination server I'm just getting a SSL handshake failure: Feb 24 10:43:11 XenonKiloCranberry haproxy[5749]: 116. 关于/1 in frontend_name/1: SSL handshake failure. Help! 2: 2817: May 3, 2023 Haproxy w/ssl 'SSL handshake failure' Help! 3: 7760: February 10, 2023 Troubleshooting SSL Handshake Failure (backend) Help! 4: 1076: December 11, 2022 Tons of "ssl_termination/1: SSL handshake failure" Help! 6: 1396: September 20, 2019 Hi Community, i dont know why, but my haproxy throws me severals time a “SSL handshake failure” like this: Jul 18 15:35:43 proxy1 haproxy[6477]: 192. 我在文档中找不到它，但通过实验，我发现它是前端端口的数目，尝试连接的端口数，SSL握手失败。 因为haproxy 2. No luck . ) Hello All, I fight with this problem for some time now but unable to figure it out. Help! 5: 6631: August 16, 2019 Layer6 invalid response, info: "SSL handshake failure" Help! 1: 398: April 24, 2024 Layer6 invalid response: SSL handshake failure. 138:64745 [08/Nov/2020:23:33:00. proto_http which implies that HAProxy have to decrypt the TLS and start to analyze the request which will not be done in TCP mode. 153:4594 [21/Jun/2019:11:08:04. 8 on Ubuntu 18 in production and we plan to upgrade to version 2. 100:51019 [18/Jul/2018:15:35:43. SSL labs has confirmed that the certificate is OK (full certificate chain). 8. 0 setting up ssl on haproxy. 5. pid maxconn 4000 user haproxy group haproxy daemon # turn on stats unix socket stats socket /var/lib/haproxy/stats ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS When i go through HAProxy with curl -k I see curl: (35) gnutls_handshake() failed: The TLS connection was non-properly terminated. 0013) C>S TCP FIN 1 0. 70. The client says hello. Help! 2: 68: November 26, 2024 CRITICAL - HAProxy SSL Handshake failure issue. Before we dig deeper into what causes a TLS or SSL handshake failure, it’s helpful to understand what the TLS/SSL handshake is. 0 disabled TLSv1. Hi, I’m using HA-Proxy version 1. so if ssl failures occured it only affected that single request. Below my cfg global log 127. Firefox browser Haproxy w/ssl 'SSL handshake failure' Help! 3: 7941: February 10, 2023 HAproxy TLS passthough. 1 active and 0 backup servers left. Although, sometimes there are single requests failing SSL handshake. but it looks Hi, After deploying the new HAProxy version (the previous was 1. 20 with an 2048 bit certificate from Let’s encrypt. When I disable TLS it all works great. 1:514 local2 daemon maxconn 256 defaults log global mode http option httplog timeout connect 5s timeout client 50s timeout Running HA-Proxy version 2. global tune. zzz. x versions. log is flooding with messages like: Jun 21 11:08:04 172. com/roelvandepaarWith tha Haproxy ssl redirect handshake failure. 208] https_frontend_test/1: SSL handshake failure Jan 4 14:33:41 haproxy[60533]: *IP*:61442 [04/Jan/2024:14:33:41. 0013 (0. I get an SSL handshake failure. Help! 0: 219: April 18, 2024 Haproxy w/ssl 'SSL handshake failure' Help! 3: 7018: February 10, 2023 SSL Handshake issue. Due to cookies for sticky sessions I am not running in tcp mode. bar. You can use SSL/TLS end to end, and have your client authenticate the backend. They are not coming from any specific source. It seems ssh v2 waits for the server before talking, causing haproxy to mistake it for a ssl connection. [WARNING] (5477) : Server cso-cs Hi all ! It’s possible log more then “SSL handshake failure” ? For example, when a client browser uses an unsupported protocol in haproxy (for example SSL3), only entries are logged in: SSL handshake failure Connection closed during SSL handshake But that’s not enough to say what the cause was. From my point of view have you several options. 0 sessions active, 0 Haproxy SSL handshake failure. 319] main/2: SSL handshake failure Can anyone know actual cause of Nov 18 12:37:05 mail haproxy[126258]: xx. Instead TLS need to be terminated (which means proper certificates etc are needed) and then a new TLS session has to be created with the expected SNI set. It can be protocol mismatch cipher cuite mismatch incorrect Haproxy SSL handshake failure. I opened a discourse post before but after some more research I decided to open thi ### Detailed Description of the Problem When using error-log-format with %[ss l_fc_sni], we never actually return a SNI value. * /var/log/haproxy. I know I could use mode tcp for tls forwarding on the load balancer but I need to use cookies for sticky sessions. Help! 0: 300: March 31, 2022 No SSL on TCP Check. 2,TLS 1. So I don’t know what more to check and what to do. Compared to most, this system is not very busy, but has lots of many hours long connections vs millions on single transactions. Would anyone be able to help me? So if I restart haproxy during daily load, haproxy might fill CPU usage up to 100% and be unable to handle more than 700-800 requests per thread. For config: frontend frontend_name bind *:443,*:444 ssl crt <path_to_cert> bind *:445 ssl crt <path_to_cert> no-tlsv13 Misconfigured HAProxy: The most common cause of HAProxy SSL handshake failures is a misconfiguration. 0:443: SSL handshake failure So here’s the deal - we have 2 HA proxy instances setup behind a google load balancer. 7 (I think) to this new version (1. Reload to refresh your session. In our logs we Hello Guys, We are running a website and have 3 servers behind Haproxy. serverfault. example. 11) Cris70 March 6, 2024, 11:03am Detailed Description of the Problem Recently started noticing a lot of ssl handshake failures in the log files. We are getting following log entries 39. 121; real_ip_header proxy_protocol; real_ip_recursive on; a single openssl s_client gives a ssl handshake failure (no certificates blabla). The crt parameter identifies the location of the PEM-formatted SSL certificate. With Lua, you can maintain a lot of personal counters, but these counters cannot be checked throught the socket, you must create a Lua applet dedicated to give these stats. However, when I enable the TLS I get fe_mqtt/1: SSL handshake failure. HAProxyConf 2025 - Call for Papers is Open! HAProxy config tutorials Theme. 0 TLS handshake fail. I’m running haproxy 1. E. But I would recommend to terminate the SSL before or on haproxy, you can do that with haproxy 1. 3. But when I use a certificate they generated from my CSR and then use my private key as key, it Problem: Around 1% of the requests are "SSL handshake failure". mydomain. Looking at the network level, almost all of them fails with this message: Bad Record MAC. xxx:443: SSL handshake failure ". Hi there. 1e is what this means. This works if I use https://localhost:8443. <snip> The point is that I don’t have enough information here for me to be able to understand why the SSL handshake fails. 9, but the same thing happens on 1. 12:47006 [23/Jul/2024:13:48:41. With openssl s_client i see `CONNECTED(00000003) 140350987986584:error:140790E5:SSL routines:ssl23_write:ssl handshake failure:s23_lib. What am I doing wrong in this process? It works when I try with a received a test certificate including a private key from the service (self signed certificate). Hello, we are running haproxy version 1. This can include errors in the HAProxy configuration file, or problems with the HAProxy daemon itself. use error-log-format with ssl_fc_sni (as per the documentation) 2. 30:38852 [21/Jun/2019:11:08:04. I tested HProxy SSL Passthrough with simple configuration using listen directive Here is working sample: listen my_listener bind *:443 mode tcp option tcplog balance leastconn option ssl-hello-chk server app lb-test. This certificate should contain both the public certificate and the private key. default-dh-param 2048 ssl-default-bind-ciphers ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA On the log I receive the following error: SSL handshake failure Is it possible in HAproxy to connect an internal RDP server through an HTTPS connectio I tried to configure an HTTPS frontend to an internal RDP backend. 410] lb-useast/lb-useast_frontend: SSL handshake I’ve a haproxy setup with tcp mode ssl configuration [ to offload ssl sockets traffic]. 1e and runs with 1. 1 requests. To debug the problem I run sniffer, it shows Alert Message as “Unknown CA (48)”. After adding TLS Web Server Authentication to certificate in haproxy's frontend section and TLS Web Client Authentication to certificate in haproxy's backend section Original Poster reported success. 55. 0 active and 0 backup servers left HAProxy `SSL handshake failure` when proxing request from another serverHelpful? Please support me on Patreon: https://www. Failing with below errors even though ca/svc crts Hello, we are adding Haproxy between Routes and app pods to Inbound connectivity from the F5 . My config is below frontend https-frontend bind 192. HAProxy backend/server to specific destination using SSL and SNI returns "OpenSSL error[0x14094410] ssl3_read_bytes: sslv3 alert handshake failure" 1 Haproxy TLS terminating and passthrough based on sni Jan 4 14:33:35 haproxy[60533]: *IP*:55752 [04/Jan/2024:14:33:35. Any clue? My conf. However, I still get tons of “SSL handshake failures” in my log. I have a problem with ie8 and Windows XP (i know the EOL of this but some computers in the company still uses) . Help! 0: 331: June 25, 2023 Backend down: Layer6 invalid response, info: "SSL handshake failure" Help! 2: 1956: October 10, 2023 Home ; Categories ; Guidelines Hello, When haproxy logs the error, “SSL handshake failure”, I would like to add that client ip address to a stick-table. 1,TLS 1. Fetch request to backend within same domain fails net::ERR_CERT_AUTHORITY_INVALID. HTTPS request to HAproxy to http and then encrypt it again to Haproxy 1. There are intermittent SSL handshake failures after migrating 0. 229:54666 [25/Jun/2023:22:28:46. 0 sessions active, 0 requeued, 0 remaining in queue. I captured the tcp traffic on the haproxy server when a rdp client tries to connect: I cannot reach my services (nextcloud + homeassistant) and shows that the cert is expired. 9. Hello, I have a HAProxy instance that should serve as a proxy to Here. SSL_connect:SSLv3 write client certificate A SSL3 alert read:fatal:handshake failure Since you don't specify the client certificate properly an empty client certificate will be send. 99:53156 [17/May/2017:12:37:21. Flow: We are using a Load balancer to distribute the traffic between the servers; Server Proxy request has been handled by the HAProxy; HAProxy is taking care of proxying the request to the backend server; HAPROXY Configuration: haproxy log: rdpbroker/1: SSL handshake failure; When I use “openssl s_client” or curl to connect to pool{n}. 816] ilo3/1: SSL handshake failure. tcp-request inspect-delay 5s tcp-request content accept if { req_ssl_hello_type 1 } acl is_my_domain req. 8 in docker (default image, haproxy -vv below) on both servers. You are already using the TCP passthrough approach, there is no other way, as haproxy does not implement the postgres protocol. 86. Help! 2: 2832: May 3, 2023 Home Fails with: error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure. 1. 1 there is no performance issue because each request is a new tcp connection. System. SSL handshake failed (5). ssl_sni len 100, my intent is to log the SNI value in If you can’t use haproxy logging, you can verify externally by capture the SSL handshake (tcpdump, etc all) and checking the field in wireshark, or with tools like ssldump. HTTPS request to HAproxy to http and then encrypt it again to forward request to ssl server. Visit Stack Exchange I am working on a setup where there are two HAProxies behind an AWS Network load balancer. frontend wildcard_tcp bind *:443 option tcplog mode tcp tcp-request inspect-delay 5s tcp-request content accept if { req_ssl_hello_type 1 } acl is_wilddomain req_ssl_sni -m end wilddomain. So for each api call the connection validating 2 ssl handshake (first handshake between user and haproxy server, second handshake between haproxy and api server )which increasing the response time. HAproxy is not forwarding request from http to https while using curl through command line. Mismatches in supported protocols or cipher suites can cause the handshake to fail. Learn common causes and solutions for smooth SSL connections. Suddenly when I try to access to subdomain web page I get this error, main domain web page works. Can you explain what this configuration is supposed to achieve, especially regarding whether you want to pass SSL through or terminate on haproxy. The decryption endpoint is the HA proxy instances. That’s it for turning on this feature. 18-6. However the following backend configuration fails with messages 'SSL handshake failure backen We are using HAProxy 1. I ran tshark to capture traffic. 4. 11. ECDHE Cipher not being displayed. Help! 14: 13770: October 29, 2018 Haproxy w/ssl 'SSL handshake failure' Help! 3: 6489: February 10, 2023 Home ; Categories ; Guidelines Jun 25 22:28:46 haproxy haproxy[5750]: 192. com acs host_test2 hdr_beg(host) test2. 2 HAProxy backend/server to specific destination using SSL and SNI returns "OpenSSL error[0x14094410] ssl3_read_bytes: sslv3 alert handshake failure" 0 TLS handshake fail. Disabling weak protocols and ciphers in Centos with Apache. 3) still facing SSL handshake failure; Cipher Suite Mismatch Tested with the existing working Cipher suite CRITICAL - HAProxy SSL Handshake failure issue. Help! 2: CRITICAL - HAProxy SSL Handshake failure issue. default-dh-param 2048 ssl-server-verify required ssl-default-bind-options no-sslv3 no-tlsv10 no-tlsv11 no-tls-tickets ssl-default Haproxy ssl redirect handshake failure. 2默认的ssl-min-ver是TLSv1. I have attempted to set up the redirects in So I can’t tell if this is an HAProxy or a cloudflare one, but could use some guidance. sock mode 666 level admin stats timeout 2m ssl-server-verify none tune. Does anybody recognize this issue? Thanks in advance. 0 sessions active, 0 requeued, 0 remaining in I want to configure HAProxy as a tcp pass-through with ssl proxy, but some settings don’t work. 441] https_frontend_test/1: SSL handshake failure Jan When you set accept-proxy, the client needs to send to actually send the PROXY protocol. 0001) S>C TCP FIN So to me it looks Haproxy 3. TLS handshake fail. This type of data is not a statistic. When I added that ssl-default-server-ciphers setting to the global config and restarted haproxy service (with the health checks still disabled), the 3 backend servers were immediately put in the DOWN state. 0,TLS 1. Help! SSL handshake failure my haproxy version: 2. On my internal network, I'd like to have haproxy talk to it and eat the SSL errors and serve the content with SSL that modern browsers will support. Your actual backend TLS gets configured on the backend server itself <IP-address>:8443 of web02. What rpm thinks is installed locally does not really matter, the output shows what actually happens. 3 using “ssl-default-bind-options force-tlsv13” . Step 4: Test Backend Configuration (for Reverse Proxies like HAProxy) If HAProxy forwards SSL connections to a backend, ensure the backend listens on the correct port. Haproxy was build with 1. Light. Help! 2: 54: November 26, 2024 I want to eat all SSL handshake errors from the backend. 294] lb-useast/lb-useast_frontend: SSL handshake failure Jun 21 11:08:04 172. 1:9997 level admin stats socket /var/run/haproxy. 10. com:3389, the ssl connection can be established. I investigated the HAProxy settings for front- and backends, I checked response headers and tried to debug the ssl handshake, but I couldn't find a similarity of problematic or difference between working and problematic webserver/backends. (We’re currently using mode tcp with tcp-request to block. e. Can aynone help me? here is config file When I check logs in haproxy I I have already confirmed that this ACL rule works to extract SNI from raw TCP packets. HAproxy with Let'sEncrypt certificate produces SSL handshake failure. 1 local0 user haproxy group haproxy maxconn 10000 stats socket ipv4@127. 100. We used to run haproxy with SSL pass thru. 25-1ppa1~xenial on Ubuntu 16. Pattern: I usually see the problem when a client make too many requests quickly. SSL read failed (1) - closing connection Dear All, I’m absolutely not an expert in haproxy and ssl/tls and I’m stucked in a problem. 2 Record Layer: Handshake Protocol: Multiple Handshake Messages Content Type: Handshake (22) Version: TLS 1. I mis the haproxy version you’re running, iirc they disabled older tls versions/ciphers recently which might be biting you. However when doing a request the response is a 502 Bad Gateway and in in the debug logs of the destination server I'm just getting a SSL handshake failure: Is this possibly I’ve had haproxy working with a non-ssl/tls frontend for some time. cfg and restarted and still faced SSL failures for normal http1. 0 active and 0 backup servers left. Help! 3: 522: March 22, 2022 Haproxy 3. We have ONE client that is having issues accessing the system, they are getting an SSL handshake failure, and they are using java as a client (I’m verifying the version). I want to log Client Side Certificate SSL errors including the source-ip & client side certificate CN and CA CN when SSL Handshake fail I have a ssl certificate by comodo (onlñy one site in haproxy) . On this page. i get http/2: SSL handshake failure in my logs. I use the following configuration in the backend: backend be_intranet mode http server The logs sadly don't seem to tell me much more than " Frontend/xxx. Facing SSL handshake failure with the the below HAProxy configuration and Outage in our production environment. 198] https_frontend/1: SSL handshake failure fd[0x67] OpenSSL error[0x14094418 I figured out the issue I was facing. It's only when I take down serv1 that I get the SSL failures. com use_backend test1_back if host_test1 use Currently haproxy receiving traffic but its not able to talk to service . 1 disabled TLSv1. Appreciate any education. 2. ### Steps to Reproduce the Behavior 1. default-dh-param 2028 Aug 8 12:27:53 raspberrypi haproxy[28065]: Server tplink_dest_8092/ipcam is DOWN, reason: Layer4 connection problem, info: “SSL handshake failure”, check duration: 0ms. Failures appear after a reload is finished. However, I've noticed that I don't receive entries for EVERY failed con HAProxy by default allows to reuse the same port number across the same or other frontend/listen sections and also across other haproxy process. Help! 2: 2842: May 3, 2023 Home ; Categories Hi all, I’m trying to setup HaProxy as a load balancer for squid proxies and it’s working fine with http, but I can’t make it work with https. This is a different message. <snip> failed, reason: Layer6 invalid response, info: "SSL handshake failure", check duration: 3ms, status: 0/1 DOWN. 8), I’ve got a lot of “SSL handshake failure” from the same address every 5 seconds. According to the HAProxy logs, the issue is an SSL Handshake failure: Sep 9 09:39:37 localhost haproxy[1132]: xx. 42. 1:55555 local3 notice to gather statistics about failed SSL handshakes. I’ve been able to do this with Traefik, so I know what I am trying is possible, but I cannot get HAProxy to do it. . Access to those two backend servers works fine: However the health check on HaProxy fails with a Layer 6 issue. I tried to use a self-signed certficate or commercial cert for LB, but when i restart haproxy i have errors in logs: localhost haproxy[95255]: Server as_wso2_com/node1 is DOWN, reason: Layer6 invalid response, info: "SSL handshake failure", check duration: 10ms. I removed the ssl-default-server-ciphers setting and was able to capture the failing health check over http/80 for backend node 201a with the An Introduction to the SSL Handshake. patreon. HAProxy community Proxy protocol causes SSL handshake failure. 04. 5 or you can install, F. I am running a haproxy with multiple backend with SSL. 99:36908 [24/Feb/2020:10:43:11. Nov 18 12:47:14 mail haproxy[126258]: [WARNING] (126258) : Proxy letsencrypt-backend stopped (cumulated Reasons for HAProxy backend SSL handshake failure. 275] e54cf7f6-9f4a-4487-87a3-aa3adb340ad2_5432_frontend/1: SSL handshake failure (have an SSL traffic between the client and HAProxy and a clear traffic between HAProxy and DB nodes?) with Haproxy's documentation says the ssl and the verify server option enable verify on backend server's certificate via one ca-file but I try to use Firefox export the backend server's CA file then use the exported CA file to verify backend server and I get the 503 Service Unavailable prompt. vvv:63965 [18/Nov/2023:12:37:05. pem verify required redirect scheme https if !{ ssl_fc } acs host_test1 hdr_beg(host) test1. But the server expects a valid client certificate and thus report a failed handshake within an SSL alert back to the client. 1 local2 info chroot /var/lib/haproxy pidfile /var/run/haproxy. 0 setting up haproxy to listen to ssl. I’ve been trying to configure HAProxy to balance sadly old IIS sites using CCS (Centralized Certificate Store) feature without success. 0014 (0. So far the setup is running and working, but ssl/1: SSL handshake failure. I wanted to know if it is possible to define an ACL that triggers the addition of the client ip to the stick-table even because TLS negotiation fails. Why this is Hello community! I am trying to setup HAP as a Load Balancer to our backends which are running HAP as a reverse proxy (I try to use one tool instead of two, i. Help! 3: 1810: June 22, 2017 Getting TLS Handshake errors. ssl. The ssl parameter enables SSL termination for this listener. HTTPS request to HAproxy to http and then encrypt it again to forward request to ssl server A line like the following can be added to # /etc/sysconfig/syslog # # local2. 1. Behind the HAProxy are apache web servers. Aug 17 17:06:12 localhost haproxy[2593]: Server bk_main/srv01 is DOWN, reason: Layer6 invalid response, info: "SSL handshake failure", check duration: 25ms. The certificates linked to the frontend are all valid LetsEncrypt certs that are regenerated every few months. As a consequence haproxy logged SSL handshake failure without any more details, as is its habit. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. So the SSL handshake failure you're getting stems from the fact HAproxy is unable to authenticate the cert of I am using HAProxy 1. Another weird You signed in with another tab or window. 4 on Ubuntu 22. The extended master secret changes the way pre-master secret is generated for TLS sessions and I suspect BIG-IP fails to detect its presence and calculates the pre-master secret as if extended master secret is not in place, SNI is part of the SSL/TLS handshake, specifically the ClientHello sent at the beginning of the handshake by the client. Afsik Rc4 is really pretty old and shouldn’t be used anymore. rcjypg yczkbe ibnd yfil gttddk pmegn joek vhhxpri zjfznn eda