Haproxy ssl handshake failure Disabling weak protocols and ciphers in Centos with Apache. 0013 (0. ssl_sni len 100 Note tcp-request content capture req. You are already using the TCP passthrough approach, there is no other way, as haproxy does not implement the postgres protocol. I’ve been trying to configure HAProxy to balance sadly old IIS sites using CCS (Centralized Certificate Store) feature without success. 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. 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. Before we dig deeper into what causes a TLS or SSL handshake failure, it’s helpful to understand what the TLS/SSL handshake is. No luck. Help! 2: CRITICAL - HAProxy SSL Handshake failure issue. 9, but the same thing happens on 1. 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. 9. 503 Service Unavailable No server is available to handle this request. xxx:443: SSL handshake failure ". I have my HAProxy setup with let’s Encrypt and everything is working well. Additionally, check backend SSL certificates for validity. 关于/1 in frontend_name/1: SSL handshake failure. 312] HTTP/3: SSL handshake failure Lines such as these are created around thirty times per second. 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. Learn common causes and solutions for smooth SSL connections. so if ssl failures occured it only affected that single request. 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". 1 requests. 0 TLS handshake fail. 8 version CRITICAL - HAProxy SSL Handshake failure issue. 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,. They are not coming from any specific source. 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. 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. Hi there I have a big issue regarding connection Haproxy to mysql throught ssl with mysql self signed cert. Help! 0: 2020: July 18, 2018 SSL handshake failure. bar. That’s it for turning on this feature. Log is full of: https/0. 3 using “ssl-default-bind-options force-tlsv13” . Failures appear after a reload is finished. Question: I would like to know if there's something wrong with my configuration, or 1% failure rate is Removed h2 alpn in haproxy. acme client says everything is ok and renewing certs was also successful. Reload to refresh your session. System. ### Steps to Reproduce the Behavior 1. It is impossible to replace any part of the TLS handshake, including SNI. 70. 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}. Route the requests based on SNI header as answered in How haproxy uses sni to spread traffic, my preferred solution. 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. 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. 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. Since switching, I keep getting some SSL connection errors in the HAProxy log (5-10% of the total number of requests). 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. cfg and restarted and still faced SSL failures for normal http1. 55. 10. 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. It seems ssh v2 waits for the server before talking, causing haproxy to mistake it for a ssl connection. log is flooding with messages like: Jun 21 11:08:04 172. I’ve been reluctant to change the SSL settings from standard to not risk angering the SSLLabs and other security metrics. 2,TLS 1. ssl. Behind HA proxy there’s 6 web servers. 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. Firefox browser Haproxy w/ssl 'SSL handshake failure' Help! 3: 7941: February 10, 2023 HAproxy TLS passthough. 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. 25-1ppa1~xenial on Ubuntu 16. Hi there. 429] https_frontend_test/1: SSL handshake failure Jan 4 14:33:41 haproxy[60533]: *IP*:61443 [04/Jan/2024:14:33:41. 294] lb-useast/lb-useast_frontend: SSL handshake failure Jun 21 11:08:04 172. 5. HAproxy SSL handshake failure. Haproxy was build with 1. 168. but it looks Hi, After deploying the new HAProxy version (the previous was 1. So far the setup is running and working, but ssl/1: SSL handshake failure. ECDHE Cipher not being displayed. 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. 99:53156 [17/May/2017:12:37:21. _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. 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). com:3389, the ssl connection can be established. 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. 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. Visit Stack Exchange I am working on a setup where there are two HAProxies behind an AWS Network load balancer. 0,TLS 1. 2 disabled TLSv1. Just recently I was tasked to have haproxy listen for https connections specifically. ) Hello All, I fight with this problem for some time now but unable to figure it out. 0 sessions active, 0 requeued, 0 remaining in queue. 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. Your actual backend TLS gets configured on the backend server itself <IP-address>:8443 of web02. HAproxy with Let'sEncrypt certificate produces SSL handshake failure. 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. It's only when I take down serv1 that I get the SSL failures. This “client hello” message lists cryptographic information, including the SSL version to use to communicate with each other. 1 local2 chroot /var/lib/haproxy pidfile /var/run/haproxy. 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. You switched accounts on another tab or window. 8 on Ubuntu 18 in production and we plan to upgrade to version 2. 2 haproxy ssl_fc_sni not matching correctly. 11 ( Kubernetes Ingress 1. 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. Although, sometimes there are single requests failing SSL handshake. Pattern: I usually see the problem when a client make too many requests quickly. 3 in docker (default image) on both servers. 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. Upon further investigation >90% of the IPs are Apple Hello I have a setup with HAProxy Client side certificate verification required. 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. 0001) S>C TCP FIN So to me it looks Haproxy 3. (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. 0. <snip> failed, reason: Layer6 invalid response, info: "SSL handshake failure", check duration: 3ms, status: 0/1 DOWN. 4 haproxy Server XXXXX is DOWN, reason: Layer4 timeout. 294] www-https/1: SSL handshake failure Means we fixed the issue. 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. How to configure IIS 7. 12:47006 [23/Jul/2024:13:48:41. e. 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. 319] main/2: SSL handshake failure Can anyone know actual cause of Nov 18 12:37:05 mail haproxy[126258]: xx. I am running HAP 2. 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. However, as global log 127. 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. Appreciate any education. 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. Light. 11. but it looks like there is a problem on the HAproxy side. 100. 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. 1 there is no performance issue because each request is a new tcp connection. 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. 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. 1:9997 level admin stats socket /var/run/haproxy. 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. 225. From my point of view have you several options. 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. I am terminating SSL at the load balancer (HAProxy 1. tcp-request inspect-delay 5s tcp-request content accept if { req_ssl_hello_type 1 } acl is_my_domain req. 153:4594 [21/Jun/2019:11:08:04. curl: (60) SSL certificate : unable to get local issuer certificate - ubuntu. HAProxyConf 2025 - Call for Papers is Open! HAProxy config tutorials Theme. Why the CA file and SSL verify doesn't work?. 121; real_ip_header proxy_protocol; real_ip_recursive on; a single openssl s_client gives a ssl handshake failure (no certificates blabla). 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. Simply reloading the page often fixes the problem, but sometimes multiple reloads are needed before the correct certificate is sent. 30. Suddenly when I try to access to subdomain web page I get this error, main domain web page works. use error-log-format with ssl_fc_sni (as per the documentation) 2. SSL handshake failure error:0A000416. After upgrading from 1. It had to do with TLS Extended Master Secret and the BIG-IP was failing to decrypt the handshake. 1. 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 . Help! 0: 2028: July 18, 2018 SSL handshake failure. Secure Sockets Layer (SSL) and Transport Layer Security (TLS) are protocols used to authenticate data transfers between servers and external systems such as browsers. 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! 0: 2051: July 18, 2018 Haproxy w/ssl 'SSL handshake failure' Help! 3: 7852: February 10, 2023 How to silent 'SSL handshake failure' logs. 1 active and 0 backup servers left. It seems to work correctly, as the landing page displays correctly. y. According to the HAProxy logs, the issue is an SSL Handshake failure: Sep 9 09:39:37 localhost haproxy[1132]: xx. 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. Modern browsers can't access it because it uses ancient ciphers. sock mode 666 level admin stats timeout 2m ssl-server-verify none tune. c:177: no peer certificate available No client certificate CA names sent The Pre-defined ACL HTTP is defined as req. Help! 2: 2842: May 3, 2023 Trying to install SSL Cert for use with HAPROXY. 2k, and some clients are getting random SSL handshake errors. 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. 0. 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. Port 443 serves everything and port 80 redirects to 443. 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. 3. 7 LTS We are seeing a large amount of “Connection closed during SSL handshake” messages logged - 25% of messages logged. The result is TLSv1. com use_backend test1_back if host_test1 use Currently haproxy receiving traffic but its not able to talk to service . However the log files are getting flooded with the following messages. 18-6. 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. HAProxy 1. 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. log # log 127. Help! 9: 7142: May 23, 2018 Haproxy 1. 5 SSL \ TLS to work with iOS 9 ATS. 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. 40. You signed in with another tab or window. x versions. Client-side encryption; OCSP stapling; Server-side encryption; Client-side encryption. The ssl parameter enables SSL termination for this listener. Below my cfg global log 127. When I disable TLS it all works great. My config is below frontend https-frontend bind 192. 0 active and 0 backup servers left. I’m using HA-Proxy version 1. 6 and trying to setup some sites with SSL on the IIS web-server behind the HAProxy. 8 SSL handshake failure. 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. 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). z. 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 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. 10. 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. Disabling CCS on the same site binding and selecting the same certificate manually all works fine. 2. I am passing ssl traffic from the NLB to HAProxy and then SSL offloading is taking place on HAProxy. 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. I assume there entire heartbeat detection is broken after all the changes since 2014, and this is now a false positive. 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. Help! 0: 219: April 18, 2024 Haproxy w/ssl 'SSL handshake failure' Help! 3: 7018: February 10, 2023 SSL Handshake issue. I’m troubled with the error I cannot reach my services (nextcloud + homeassistant) and shows that the cert is expired. Possibly, it is not a problem, because conditions are very specific and the same shows also qdisc-method. 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. 1 local2 info chroot /var/lib/haproxy pidfile /var/run/haproxy. 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. nginx). 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 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. It can be protocol mismatch cipher cuite mismatch incorrect Haproxy SSL handshake failure. 0 setting up ssl on haproxy. 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. 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. yy. The certificate I am using was issued by let's encrypt. 5dev19). 734] authentication_service/1: SSL handshake failure. 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. foo. TLS handshake fail. <snip> The point is that I don’t have enough information here for me to be able to understand why the SSL handshake fails. I am using HAproxy to terminate TLS (and later also load balance) RabbitMQ (MQTT). pid maxconn 4000 user haproxy group haproxy daemon tune. demo. 8 as HTTPS termination proxy in a VPN. Another weird You signed in with another tab or window. 11) HAProxy community In https port redirect http to https. 1e and runs with 1. 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. From investigating 1 affected IP my findings were: The log message “Connection closed during SSL handshake” occurs when there is no Haproxy 1. Help! 1: 501: November 7, 2023 CRITICAL - HAProxy SSL Handshake failure issue. The certificate files are concatenated and each file is just contains one certificate. Behind the HAProxy are apache web servers. Our test server forces TLSv1. 86. 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. Help! 6: 6706: June 7, 2022 TCP - Check ssl question. [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. 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. xx. peer closed connection in SSL handshake while SSL handshaking to upstream. ssl_sni -i www. com acs host_test2 hdr_beg(host) test2. 410] lb-useast/lb-useast_frontend: SSL handshake I’ve a haproxy setup with tcp mode ssl configuration [ to offload ssl sockets traffic]. Haproxy ssl redirect handshake failure. HAProxy community Proxy protocol causes SSL handshake failure. Does anybody recognize this issue? Thanks in advance. com/roelvandepaarWith tha Haproxy ssl redirect handshake failure. 1e is what this means. 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. On this page. 04. Help! 3: 1810: June 22, 2017 Getting TLS Handshake errors. 816] ilo3/1: SSL handshake failure. 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). 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. Haproxy logs on 1. 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. , nginx in front of haproxy. If I Detailed description of the problem I use log 127. The configuration for the backend is as follows: HAProxy `SSL handshake failure` when proxing request from another server. HAProxy backend server returns "SSL handshake error" 0. 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). E. Encrypt traffic using SSL/TLS. 203. 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. 208] https_frontend_test/1: SSL handshake failure Jan 4 14:33:41 haproxy[60533]: *IP*:61442 [04/Jan/2024:14:33:41. 138:64745 [08/Nov/2020:23:33:00. As far http1. 6 - Backend ssl handshake failure. Afsik Rc4 is really pretty old and shouldn’t be used anymore. 0 active and 0 backup servers left HAProxy `SSL handshake failure` when proxing request from another serverHelpful? Please support me on Patreon: https://www. mydomain. com bind :1234 ssl crt /etc/ssl/pem/mycert. This is a different message. 120; set_real_ip_from 10. Dark. 0 setting up haproxy to listen to ssl. pem verify required redirect scheme https if !{ ssl_fc } acs host_test1 hdr_beg(host) test1. 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. As a consequence haproxy logged SSL handshake failure without any more details, as is its habit. No luck . The decryption endpoint is the HA proxy instances. pem ca-file /etc/ssl/certsforhaproxy/ca. Help! SSL handshake failure my haproxy version: 2. 229:54666 [25/Jun/2023:22:28:46. 3) still facing SSL handshake failure; Cipher Suite Mismatch Tested with the existing working Cipher suite CRITICAL - HAProxy SSL Handshake failure issue. There are intermittent SSL handshake failures after migrating 0. 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. 5 or you can install, F. 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). There are probably thirty or forty IP addresses (mostly IPv6 addresses) trying and failing endlessly. Fetch request to backend within same domain fails net::ERR_CERT_AUTHORITY_INVALID. With openssl s_client i see `CONNECTED(00000003) 140350987986584:error:140790E5:SSL routines:ssl23_write:ssl handshake failure:s23_lib. 8), I’ve got a lot of “SSL handshake failure” from the same address every 5 seconds. 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. Help! Nrogerdlm January 13, 2023, 2:36pm 1. 0 sessions active, 0 Haproxy SSL handshake failure. ### Expected Behavior Return SNI value. Can you explain what this configuration is supposed to achieve, especially regarding whether you want to pass SSL through or terminate on haproxy. Requests are working as expected. 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. xx:55815 [09/Sep/2016:09:39:17. Help! 2: 2832: May 3, 2023 Home Fails with: error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure. Looking at the network level, almost all of them fails with this message: Bad Record MAC. Help! 2: 68: November 26, 2024 CRITICAL - HAProxy SSL Handshake failure issue. nginx seems to be ignoring ssl_ciphers setting. But Socket is not connecting from client. (We’re currently using mode tcp with tcp-request to block. In our logs we Hello Guys, We are running a website and have 3 servers behind 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. If it doesn’t, it will not work. Hello, I have two servers with HAProxy, let’s call them “Passthrough” and “App”. 30:38852 [21/Jun/2019:11:08:04. 1. The client says hello. I know I could use mode tcp for tls forwarding on the load balancer but I need to use cookies for sticky sessions. I have a problem with ie8 and Windows XP (i know the EOL of this but some computers in the company still uses) . So accept-proxy belongs on a bind line that recieves traffic from another haproxy instance configured on the backend with send-proxy. 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. Compared to most, this system is not very busy, but has lots of many hours long connections vs millions on single transactions. Help! 3: 1799: June 22, 2017 SSL handshake failure hangs HAProxy. 100:51019 [18/Jul/2018:15:35:43. 5 SSL and many website. Hi, I’m using HA-Proxy version 1. 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. 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. com use And I configured HAProxy to perform SSL/TLS bridging/re-encryption. example. 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. 1 disabled TLSv1. 4 on Ubuntu 22. 1:55555 local3 notice to gather statistics about failed SSL handshakes. Help! 3: 522: March 22, 2022 Haproxy 3. One backend is used for connecting an external rest api over SSL(https). But I would recommend to terminate the SSL before or on haproxy, you can do that with haproxy 1. patreon. This certificate should contain both the public certificate and the private key. I get an SSL handshake failure. . HTTPS request to HAproxy to http and then encrypt it again to forward request to ssl server. So I’ve “dumped” the SSL communication and it has only this: 1 0. What rpm thinks is installed locally does not really matter, the output shows what actually happens. SSL labs has confirmed that the certificate is OK (full certificate chain). Help! 10: 10612: January 7, 2019 Route TCP according to payload. WARNING: None of the ciphers specified are supported by the SSL engine. We are getting following log entries 39. – Filipe Giusti. 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. HAProxy config tutorials HAProxy config tutorials. 0013) C>S TCP FIN 1 0. 1,TLS 1. This type of data is not a statistic. 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. 7 (I think) to this new version (1. 4. 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. 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. I’m trying to setup something like this: Client : Uses "https://proxy. 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. * /var/log/haproxy. 20 with an 2048 bit certificate from Let’s encrypt. HAproxy: Redirect to https in backend. com } backend Apache benchmark shows a lot of SSL failures during reloads. Scenario: I have an old hp dl360 g7 with iLO 3. 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. 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. So I don’t know what more to check and what to do. global tune. This can include errors in the HAProxy configuration file, or problems with the HAProxy daemon itself. 241. HAproxy is not forwarding request from http to https while using curl through command line. I want to accept connections on port 8443, using SSL with a self signed cert, and forward to a backend on port 8000. 99:36908 [24/Feb/2020:10:43:11. 2 Record Layer: Handshake Protocol: Multiple Handshake Messages Content Type: Handshake (22) Version: TLS 1. You can use SSL/TLS end to end, and have your client authenticate the backend. 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. I mis the haproxy version you’re running, iirc they disabled older tls versions/ciphers recently which might be biting you. i get http/2: SSL handshake failure in my logs. 42. SSL/TLS Handshake Failure. 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. pem crt /etc/ssl/certsforhaproxy/test2. SSL/TLS. Mismatches in supported protocols or cipher suites can cause the handshake to fail. To debug the problem I run sniffer, it shows Alert Message as “Unknown CA (48)”. 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. 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)’. 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. Help! 8: 4057: December 2, 2021 Haproxy 3. I am running a haproxy with multiple backend with SSL. 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. It’s possible I’m not understanding the difficulties with what I’m trying to do. But the server expects a valid client certificate and thus report a failed handshake within an SSL alert back to the client. 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. vvv:63965 [18/Nov/2023:12:37:05. zzz. Help! 1: 194: July 6, 2024 It's a logical mapping internal to the haproxy process. You signed out in another tab or window. 198] https_frontend/1: SSL handshake failure fd[0x67] OpenSSL error[0x14094418 I figured out the issue I was facing. 2. Any clue? My conf. 1% of traffic to the new haproxy machine, however there are no SSL handshake failures on the old haproxy version. Any thoughts are much appreciated. 0014 (0. 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. However the following backend configuration fails with messages 'SSL handshake failure backen We are using HAProxy 1. serverfault. 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. 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. 2 Haproxy ssl redirect handshake failure. The certificates linked to the frontend are all valid LetsEncrypt certs that are regenerated every few months. I’m running haproxy 1. ; Add another HAProxy logs just report a SSL handshake failure. 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. HTTPS request to HAproxy to http and then encrypt it again to Haproxy 1. However, when I enable the TLS I get fe_mqtt/1: SSL handshake failure. 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. This works if I use https://localhost:8443. Hi, if you want the association between handshake failure and ip source, you must check the log. 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. Is it possible in HAproxy to connect an internal RDP server through an HTTPS connection? Related Haproxy health check on https backend strange results. We used to run haproxy with SSL pass thru. 8 in docker (default image, haproxy -vv below) on both servers. 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. I ha When I try to use the PROXY protocol and add the send-proxy and expect-proxy, I get SSL Handshake failures. 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. com tcp-request content capture req. Access to those two backend servers works fine: However the health check on HaProxy fails with a Layer 6 issue. So openssl and the cert are not generally broken. Hello, we are running haproxy version 1. 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. Secure Sockets Layer TLSv1. com maps, adding the API key to all passing requests. How to make HAProxy's SSL redirect and path rewrite (with reqrep) work at the same time? 1. xxx. Facing SSL handshake failure with the the below HAProxy configuration and Outage in our production environment. Nov 18 12:47:14 mail haproxy[126258]: [WARNING] (126258) : Proxy letsencrypt-backend stopped (cumulated Reasons for HAProxy backend SSL handshake failure. I ran tshark to capture traffic. The crt parameter identifies the location of the PEM-formatted SSL certificate. 8. 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. However, I still get tons of “SSL handshake failures” in my log. domain. SSL handshake failed (5). 0 disabled TLSv1. 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. 5), the access. 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. Hello, I have a HAProxy instance that should serve as a proxy to Here. 2默认的ssl-min-ver是TLSv1. Due to cookies for sticky sessions I am not running in tcp mode. 7. el7 plus openssl 1. 0 HA Proxy - Failure to make ssl_fc_sni apply to SSL connections. I am really bad with this kind of proxy especially because it is on opensense. Help! 2: 54: November 26, 2024 I want to eat all SSL handshake errors from the backend. 0:443: SSL handshake failure So here’s the deal - we have 2 HA proxy instances setup behind a google load balancer. 1 local0 user haproxy group haproxy maxconn 10000 stats socket ipv4@127. Help! 0: 300: March 31, 2022 No SSL on TCP Check. HAProxy SSL stack comes with some advanced features like TLS extension SNI. haproxy[12734]: Server https_backend/s1 is DOWN, reason: Layer6 invalid response, info: "SSL handshake My haproxy frontend config looks like this: frontend testthing. Protocol Mismatch -Tested all the TLS version(TLS 1. sklijfgv kazvc jrkuh mtmhqlq fmslt vpj aljdj fzptiw jwkrmks dazhca