rsa-aes | RSA and AES algorithm realize c # version | Encryption library

Please, be aware that the cipher suites described in your debug output doesn't show the cipher suite that was actually used by openssl, ECDHE-RSA-AES256-GCM-SHA384. In fact, they don't include any cipher suite that requires AES 256. It may not be of relevance, but it may be a symptom of any misconfiguration, and can explain why the handshake is failing. As indicated in the Oracle documentation when describing Java 8 supported cipher suites:

Cipher suites that use AES_256 require installation of the JCE Unlimited Strength Jurisdiction Policy Files.

As a consequence, please, be sure you installed and properly configured the JCE Unlimited Strength Jurisdiction Policy Files.

As indicated by @dave_thompson_085 in his excellent comment, only Oracle Java 8 below 8u161 requires adding the unlimited policy, as stated in Appendix C of the aforementioned Oracle documentation.

The JCE Unlimited Strength Jurisdiction Policy Files are bundled into the JDK since JDK 8u151, but the unlimited policy was not defined as the default one since JDK 8u161.

In JDK 8u151 or 8u152, as stated in one of the previous cited links, and explained as well by @dave_thompson_085 - thank you very much again, in order to make the unlimited version of the JCE the one that should be used, you need to define the system property crypto.policy. From the docs:

This release introduces a new feature whereby the JCE jurisdiction policy files used by the JDK can be controlled via a new Security property. In older releases, JCE jurisdiction files had to be downloaded and installed separately to allow unlimited cryptography to be used by the JDK. The download and install steps are no longer necessary. To enable unlimited cryptography, one can use the new crypto.policy Security property. If the new Security property (crypto.policy) is set in the java.security file, or has been set dynamically by using the Security.setProperty() call before the JCE framework has been initialized, that setting will be honored. By default, the property will be undefined. If the property is undefined and the legacy JCE jurisdiction files don't exist in the legacy lib/security directory, then the default cryptographic level will remain at 'limited'. To configure the JDK to use unlimited cryptography, set the crypto.policy to a value of 'unlimited'. See the notes in the java.security file shipping with this release for more information.

The issue is not present in OpenJDK.

As an alternative solution, as suggested in this related SO question, probably using an alternate provider like BouncyCastle could be of help as well.

I do not know your network/proxy setup, so I cannot really explain the behaviour of FTPClient. Your server seems to return IP address of the proxy in the PASV response. The default NAT resolver of FTPClient decides that the address is wrong (is it a local network host address?) and choses to use original FTP server's address instead.

While WinSCP does not do that and connects to the IP that the server returned.

To avoid the NAT resolver from messing with the address, use FTPClient.setPassiveNatWorkaround (though that's deprecated):

1: you're ignoring the error log, every time you run

I completely recreated your configuration for minikube on Linux. Your Kubernetes configuration is fine. And I got the same response - 301 Moved Permanently.

After that, I changed these lines in the default.conf file:

From the comments, we ultimately determined that the pip downloads were being blocked by company policy.

Troubleshooting steps that helped us arrive at the right solution:

• A ping files.pythonhosted.org was successful, so we next tried ...

• A manual download of the URI reported by the pip error from the original/updated question:

OK, that seems it's impossible to do that with connecting string. You must use a pgpass.conf file and do a file.bat like :

You have to change protocol version in line: 'ssl.PROTOCOL_TLSv1_2' To another such as : ssl.PROTOCOL_SSLV3 I am not sure for grammar. Search it in documents. This: PROTOCOL_SSLv23

This is a stab in the dark, as I don't understand that openssl output much, but judging by the timing and the keywords 'openssl' and 'Lets Encrypt' this has a reasonably high chance of success.

On September 30, 2021 Let's Encrypt's old Root Certificate has expired. This had a major implication that now they have started to use their own root cert which should be trusted by most devices. 'Most' part was troublesome as there are some devices alive which did not receive updates in years. So the people at Let's Encrypt found a way to still remain supported/trusted on those devices, just under one condition - its openssl version must be 1.1.0+ (which is already 4+ years old). Another important detail is that this openssl version requirement also applies to systems that would have otherwise trusted LE's new cert.

So I've seen numerous people over October scrambling to get LE issued certificates to be trusted again by their systems and the answer was always as simple as: Get your openssl / libopenssl updated to v1.1.0+

I was facing a similar issue with DevOps build agents. But I can access the DevOps server web interface without any issue.

To solve this,

• I updated my Let's Encrypt client (I'm using Certify The Web)
• I have renewed my certificate

After that, the DevOps agent is able to do a Git pull.