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Questions tagged [ssl-handshake]

22 questions
2
votes
2 answers

How to avoid SSL Handshake using OkHttp Android

Overview I am using the below version of Okhttp com.squareup.okhttp3:okhttp:4.9.3 I need to execute multiple HttpRequests at one go when a transaction happens. I have taken Singleton OkHttpClient to avoid creation of new client every time so I am…
KK_07k11A0585
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is the server hello message on the TLS handshacke protocol encrypted?

when reading about the TLS handshake protocol, I understood that the first response message from the server to the client is the server hello, which includes the session ID, and the latter will serve to identify the user for the next connections. I…
Marouen Badrani
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SSL handshake failed in cosmosdb mongo api with python

I am trying to connect a database in azure cosmos that uses the Mongo DB API in Python. When I create the client, I get the SSL handshake failed error and I don't know how to solve it. I am aware that there is some thread that talks about this…
yeray
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How to do tls/ssl handshake with NWConnection in macOS app

I am developing a macOS App with Swift. Currently, the app can connect successfully to a server in local network with host and port only "XXX.XXX.XXX.XXX:YYYY" without any prefix of the host (eg: "http or https", "ws or wss"). let nwConnection =…
Luu Minh
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Kubernetes: curl works on physical node but NOT in pod

I installed kubernetes (1 controller node and 4 worker nodes). O.S. Ubuntu 22.04.1 kubernetes v1.26.1 Calico v3.25.0 From a POD I need to get authenticate to an external server. The request works perfectly when running on the node itself (NOT inside…
Pentolone
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1 answer

Getting fatal: engine already closed. Rethrowing javax.net.ssl.SSLHandshakeException: no cipher suites in common on spring boot embedded jetty server

I have spring boot appilcation containing rest APIs running on embedded jetty. I am trying to hit it by another java application which runs on TLSv1 but is getting below error: fatal: engine already closed. Rethrowing…
Sahil
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Error "ERR_SSL_VERSION_OR_CIPHER_MISMATCH" with ApiGateway Custom Domain

I am configuring a Custom Domain for ApiGateway. I created two subdomains, one for the Application Load Balancer and one for the ApiGateway. I imported a wildcard certificate on ACM for the two subdomains. When I create a Custom Domain on ApiGateway…
Diego Brignoli
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Below tls handshake, What is the problem?

An app.zeplin.io:443 connection error is occurring in the vpn environment. In the same vpn environment, access to github.com:443 or stackoverflow.com:443 is normal. I'm a little lacking in background knowledge about tls handshake, so I'm asking like…
jihoon yoo
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TLS Handshake errors in Iran

I live in Iran, which is a dictatorship with a lot of internet censorship. My problem is TLS Handshake error that occurs with certain internet operators (Like MTN Irancell). In certain GNU/Linux distributions, such as Debian and Arch Linux, I…
Behzad
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How to enable SSL Handshake Debug logs in Red Hat OpenShift application

I need some help to enable SSL Handshake debug logs in Openshift. I have an application running in Openshift container and created POD for that application. I'm not able to enable SSL Handshake debug logs and able to see only the application logs in…
subbu kandula
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C++ Windows Winsock SChannel - AcquireCredentialsHandleW failing - due to UNISP_NAME or SChannel?

I'm trying to implement an SSL handshake in C++ x64 unicode in Windows using winsock, schannel, security etc. Example host is google.com. I created a SOCKET and could connect via WSAConnectByNameW. I'm setting my SCHANNEL parameters as…
0x38
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Why can't Java 11 connect to web site that browsers can?

I'm trying to connect connect to a website that recently changed their TLS configuration. It no longer works from Java 11 (nor 17). It fails at the handshake but the error message doesn't say exactly what went wrong. The site works in browsers so…
Jeff C Johnson
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After upgrading Java 8.252 to 8.352 I get SSL exception for REST API call

I have a REST call for GCP for fetching the regions. After upgrade of Java version from 8.252 to 8.352, the API is started failing with exception. org.springframework.web.client.ResourceAccessException: I/O error on GET request for…
Sanvar Inamdar
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ClientHello Retransmitted many times followed by TCP DUP ACK during SSL handshake

we have one client and server our application running as bridge between client and server. our module responsible for forwarding the traffic between client and server. During SSL handshake i am trying to interrupt the client hello and respond to the…
user1897937
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How to get the list of cipher suits offered by my client?

I am trying to get the list of Cipher Suits offered by my clients when visiting my PHP web page. I tried checking $_SERVER['SSL_CLIENT_CERT'] or $_SERVER['SSL_CLIENT_CERT_CHAIN_0'], but I am getting the following error Warning: Undefined array key…
MKSOI
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