I'm getting this error when i try to connect to a SSL (protocol v3) LDAP server in Apache Directory Studio.
I'm connecting to a LDAP server on port 636 (ldaps) with SSL encryption.
ERR_04120_TLS_HANDSHAKE_ERROR The TLS handshake failed, reason: Unspecified: The server selected protocol version TLS10 is not accepted by client preferences [TLS12]
I'm using Apache Directory Studio Version: 2.0.0.v20210213-M16 on MacOS 11.2.3 (20D91)
java.version=16
java.vendor=Azul Systems, Inc.
It seems that "some" update maybe disabled TLS1.0 on my mac???
Any clues how to fix this?
So this may be a little late, but you need to follow the instructions here.
An update to the JDK has disabled TLS1 and TLS1.1 support by default. You can change the defaults so they are no longer disabled.
Basically you need to find the jdk.tls.disabledAlgorithms property in ${JAVA_HOME}/conf/security/java.security file and remove the offending algorithm from the list (TLS1).
Once you do this, you should be good to go.
Related
I'm running Red Hat Linux Enterprise Linux 7.9 which hosts a tentacle application.
After a vulnerability scanner on this server, it shows a TLS vulnerability over the port 10993, which is the port used for octopus tentacle and the vulnerability rapport shows that the server is successfully connected over TLSv1.1
I had verified on the server into /etc/octopus/Tentacle/ tentacle-Tentacle.config file but nowhere its mentioned the SSL/TLS settings on the Linux machine. I need someone to help where exactly it’s pointing this TLS1.0, TLS1.1 and where the TLS config file is located to disable the use of the weak version.
Thank you,
I have new server windows 2019 standard Edition, with IIS 10 installed on it I exported my wildcard SSL from my old server to the new server my website can work successfully on http only while on https it gives an error can't open and gives this error
https://www.screencast.com/t/zgpV7hnUw
I tried to create a new request and get a new certificate also get the same error, also I enabled SSL 3.0 in the registry but also no result.
also, strange behavior when I tried to test the SSL with ssllabs website I found the response successful with grade A
Any advice
Thanks in advance
To resolve the issue you could try below things:
1)Open iis manager.
2)select your site-> bindings.
3)add binding with the below values:
type: https
IP: all assigned
port: 443
keep hostname blank
in certificate select IIS Development Certificate and click ok.
restart iis and site.
clear browser history and try to browse the site.
Thanks for you all the problem is when I applied the registry that applies to enable ciphers and Tls 1.3 and Tls1.2 and disable Tls1.0 and Tls 1.1 on windows 2019. windows 2019 don't need to add any ciphers or Tls1.3 and tls1.2 protocols
I am working on WebSphere clustering. Everything was working fine. But for SSL, I accidentally change protocol from SSL_TLS to TLSV1.2.
I have changed it here
Security - - SSL certificate and key management - - SSL configuration - - CellDefultsetting - QOP - protocol
And now my administrator console is not opening.
Error in logs :
CWPKI0028E: SSL handshake protocol "SSLv2" is not valid. This protocol is specified in the SSL configuration alias "CellDefaultSSLSettings" loaded from SSL configuration file "security.xml".
The extended error message is: "no such algorithm: SSLv2 for provider IBMJSSE2".
I checked security.xml in cell, but the value f SSL protocol is still SSL_TLS.
Where do I need to revert the changes done in console? Console is no more opening.
First make sure that your browser supports TLSv1.2 and is enabled. If not, try to open admin console from a different browser which supports TLSv1.2.
If you really need to disable admin security so that you can change back the SSL settings, here is a document:
http://www-01.ibm.com/support/docview.wss?uid=swg21405302
I switched with my Domain to Cloudflare and now I'm trying to use CloudFlare's SSL Feature.
I already own a SSL cert from StartSSL so I would be possible to set the settings to 'Full (Strict)' but I don't want to so I turned it to 'Full'.
Now I'm getting 525 Errors, after a 'Retry for a live Version' everything is okay.
But I'm getting this Error everytime.
Has anyone an idea ?
Thank you
Picture of my Error
Change Cloudflare SSL/TLS encryption mode in to Flexible. it worked for me.
A 525 error indicates that CloudFlare was unable to contact your origin server and create a SSL connection with it.
This can be due to:
Your servers not having matching or compatible SSL Ciphers
Your website may not have a certificate installed properly
Your website may not have a dedicated IP OR is not configured to use SNI
Attempt to contact your hosting provider for assistance to ensure that your SSL certificate is setup correctly. If you are using a control panel, a quick google search can help you find a install guide for that said control panel.
Visit SSL/TLS tab in Cloudflare. Then:
Switch Your SSL/TLS encryption mode to Flexible.
Make sure to switch On "Always Use HTTPS" under "Edge Certificate" tab.
This will transfer all your request from Http to Https automatically. And if you'll implement custom SSL certificate on your hosting server then this 525 error will automatically disappear without changing anything on Cloudflare.
Got the same problem a few days ago.
Our DevOps contacted support and found out that Cloudflare changed certificate type or smth in that way. Asked to return everything back.
That helped.
I went through the same problem today and found that (at least in my case) it was the lack of TLS v1.3
I had just made a server using nginx + php-fpm and a self signed ssl to use below CloudFlare proxy.
When I switched from the production server to this new one, it gave error 525.
I gave the command: curl -I https://your_server_public_ip/ and it returned the error:
error: 1408F10B: SSL routines: ssl3_get_record: wrong version number
This error is described in the CloudFlare community at:
https://community.cloudflare.com/t/community-tip-fixing-error-525-ssl-handshake-failed/44256
There they advise turning off TLS v1.3 on the CloudFlare panel, but I decided to try installing it.
Using nginx is so easy that I don’t know why to have it shut down.
Only add TLSv1.3 like this-> ssl_protocols TLSv1.2 TLSv1.3; in your nginx/snippets/ssl-params.conf file (default Ubuntu 20 and 18) that will work and you still use the latest and most secure protocols.
I am having issue connecting to a qmgr. the host rejected connection due to cipherspec error for ssl channel on port 1414. The keystore checked out ok. I was able to use openssh to connect to the host and retrieve its keys.
I have tried to enable and disable sslv3. I provided keystore password with and without "" (double quotes). These are connection properties
qcf=wmq://aftbusu105.it.companyx.com:1414/?qmgr=MQPLTC010,channel=FUSION.SSL,sslCipherSuite=SSL_RSA_WITH_NULL_MD5,transportType=1
reqQ=queue:///FUSIONQL.app.queuename.1_0.Q.PS.REQ
rspQ=queue:///FUSIONQL.app.queuename.1_0.Q.PS.REQ
mep=oneway
connCnt=1
sessCnt=1
numMsgs=1
connInterval=10
msgInterval=10
deliveryMode=1
priority=1
expiration=1
keystore=/path/keystore/m36797q.jks
password=a$tilBe2Flower
alias=m36797q
Do you know what the issue could be?
Can you confirm if you have FIPs enabled on either the server or the client? It's possible you are getting error because the ciphersuite
SSL_RSA_WITH_NULL_MD5 is not supported in FIPS mode. Are you seeing any AMQ errors in your QMGR error logs?
Also, let us know the MQ version you are using.