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Failed to connect and initialize SSH connection: Algorithm negotiation fail #293

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jmorille opened this issue Feb 7, 2023 · 2 comments
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@jmorille
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jmorille commented Feb 7, 2023

Jenkins and plugins versions report

Environment
awt.toolkit	: sun.awt.X11.XToolkit
com.zaxxer.hikari.pool_number:1

executable-war: /usr/share/java/jenkins.war:
file.encoding	: UTF-8
file.separator	:  /
java.awt.graphicsenv: sun.awt.X11GraphicsEnvironment
java.awt.headless	: true
java.awt.printerjob	: sun.print.PSPrinterJob
java.class.path	: /usr/share/java/jenkins.war
java.class.version: 55.0
java.home	: /usr/lib/jvm/java-11-openjdk-11.0.13.0.8-4.el8_5.x86_64
java.io.tmpdir: /tmp
java.library.path : /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
java.runtime.name	: OpenJDK Runtime Environment
java.runtime.version: 11.0.13+8-LTS
java.specification.name : Java Platform API Specification
java.specification.vendor: Oracle Corporation
java.specification.version: 11
java.vendor: Red Hat, Inc.
java.vendor.url: https://www.redhat.com/
java.vendor.url.bug	: https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%208&component=java-11-openjdk
java.vendor.version	: 18.9
java.version	: 11.0.13
java.version.date: 2021-10-19
java.vm.compressedOopsMode	: Zero based
java.vm.info	: mixed mode, sharing
java.vm.name	: OpenJDK 64-Bit Server VM
java.vm.specification.name	: Java Virtual Machine Specification
java.vm.specification.vendor: Oracle Corporation
java.vm.specification.version: 11
java.vm.vendor	: Red Hat, Inc.
java.vm.version	: 11.0.13+8-LTS
jdk.debug	: release
jetty.git.hash: 1c2636ea05c0ca8de1ffd6ca7f3a98ac084c766d
jna.loaded	: true
jna.platform.library.path	: /usr/lib64:/lib64:/usr/lib:/lib:/usr/lib64//bind9-export
jnidispatch.path: /var/lib/jenkins/.cache/JNA/temp/jna15499895925652029809.tmp
line.separator	:
mail.smtp.sendpartia: true
mail.smtps.sendpartial: true
os.arch	: amd64
os.name	: Linux
os.version: 4.18.0-147.5.1.el8_1.x86_64
path.separator: :
sun.arch.data.model: 64
sun.boot.library.path: /usr/lib/jvm/java-11-openjdk-11.0.13.0.8-4.el8_5.x86_64/lib
sun.cpu.endian	: little
sun.cpu.isalist	:
sun.font.fontmanager	: sun.awt.X11FontManager
sun.io.unicode.encoding	: UnicodeLittle
sun.java.command	: /usr/share/java/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080
sun.java.launcher	: SUN_STANDARD
sun.jnu.encoding	: UTF-8
sun.management.compiler	: HotSpot 64-Bit Tiered Compilers
sun.os.patch.level	: unknown
user.country	: US
user.dir	: /DATA/jenkins-home
user.home	: /var/lib/jenkins
user.language: en
user.name	: jenkins
user.timezone: Europe/Paris

```[tasklist]
### Tasks
- [ ] Add a draft title or issue reference here

</details>


### What Operating System are you using (both controller, and any agents involved in the problem)?

Jenkins 2.389 on a OS RHEL 8 try to connect a RHEL 9 via publish-over-ssh-plugin (1.24)


### Reproduction steps

1. Install a Jenkins in an RHEL 8
2. Configure an Serveur to target an RHEL 9
3. Click "Test Configuration"

### Expected Results

Success

### Actual Results

Failed to connect or change directory

jenkins.plugins.publish_over.BapPublisherException: Failed to connect and initialize SSH connection. Message: [Failed to connect session for config [backstore-integ]. Message [**Algorithm negotiation fail**]]

### Anything else?

Previous similary bug was resolveld by bumped lib in version 1.14

- [JENKINS-29360](https://issues.jenkins-ci.org/browse/JENKINS-29360) Bumped the version of jsch to overcome algorithm issue
https://github.com/jenkinsci/publish-over-ssh-plugin/blob/main/CHANGELOG.md
@jmorille jmorille added the bug label Feb 7, 2023
@OneTop4458
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There is a workaround in #312.
You can run the command in the Jenkins Script Console.

@jmorille
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Work in last version

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