Jenkins Host key verification failed

Question

I have a problem with jenkins  setting  git   shows the following error   Failed to connect to repository   Command  git ls-remote -h https   person bitbucket org person projectmarket git HEAD  returned status code 128  stdout  stderr  fatal  Authentication failed   I have tested with ssh   git bitbucket org person projectmarket git   This is error   Failed to connect to repository   Command  git ls-remote -h git bitbucket org person projectmarket git HEAD  returned status code 128  stdout  stderr  Host key verification failed  fatal  The remote end hung up unexpectedly   I ve also done these steps with  SSH key    Login under Jenkins  sudo su jenkins   Copy your github key to Jenkins  ssh folder  cp    ssh id rsa github   var lib jenkins  ssh    Rename the keys  mv id rsa github id rsa mv id rsa github pub id rsa pub   but still not working git repository in jenkins   thanks by help

User · Answer

I ran into this issue and it turned out the problem was that the jenkins service wasn t being run as the jenkins user  So running the commands as the jenkins user worked just fine

User · Answer

Or you can use   ssh -oStrictHostKeyChecking no host  This will be insecure  man in the middle attacks  but easiest solution   The better way to do that is to generate correct mappings between host and ip address  so ssh will not complain      bin bash  for domain in  github com   bitbucket org   do     sed -i    domain d     ssh known hosts     line   ssh-keyscan  domain  nslookup  domain   awk    Address      print  2   exit          echo  line  gt  gt     ssh known hosts done   Excerpt from gist

User · Answer

Make sure we are not editing any of the default sshd config properties to skip the error Host Verification Failed - Definitely a missing entry of hostname in known hosts file Login to the server where the process is failing and do the following    Sudo to the user running the process ssh-copy-id destinationuser destinationhostname It will prompt like this for the first time  say yes and it will also ask password for the first time   The authenticity of host  sample org  205 214 640 91   can t be established  RSA key fingerprint is 97 8c 1b f2 6f 14 6b 5c 3b ec aa 46 46 74 7c 40  Are you sure you want to continue connecting  yes no    yes    Password prompt   give password Now from the server where process is running  do ssh destinationuser destinationhostname  It should login without a password   Note  Do not change the default permissions of files in the user s  ssh directory  you will end up with different issues

User · Answer

Best way you can just use your  git url  in  https  URL format in the Jenkinsfile or wherever you want   git url   https   github com jglick simple-maven-project-with-tests git

User · Answer

Had same problem  i fix it like that    reset permission on id rsa  only for current user no group no other  chmod o-rwx    ssh id  chmod G-rwx    ssh id   ls -lart    ssh    -rw-------  1 jenkins nogroup  398 avril  3 09 34 id rsa pub -rw-------  1 jenkins nogroup 1675 avril  3 09 34 id rsa   And clear    ssh know hosts  Now Connect as jenkins  sudo su jenkins   Try the jenkins commands  git ls-remote -h git bitbucket org user project git HEAD   If no problem appears  now jenkins will be able to connect the repo  for me    at least

User · Answer

login as jenkins using   sudo su -s  bin bash jenkins  git clone the desired repo which causes the key error it will ask you to add the key by showing Yes No  enter yes or y    that s it    you can now re-run the jenkins job   I hope you this will fix your issue

User · Answer

As for the workaround  e g  Windows slave   define the following environment variable in global properties   GIT SSH COMMAND  ssh -o UserKnownHostsFile  dev null -o StrictHostKeyChecking no      Note  If you don t see the option  you probably need EnvInject plugin for it

User · Answer

Change to the jenkins user and run the command manually   git ls-remote -h git bitbucket org person projectmarket git HEAD   You will get the standard SSH warning when first connecting to a new host via SSH   The authenticity of host  bitbucket org  207 223 240 181   can t be established  RSA key fingerprint is 97 8c 1b f2 6f 14 6b 5c 3b ec aa 46 46 74 7c 40  Are you sure you want to continue connecting  yes no     Type yes and press Enter   The host key for bitbucket org will now be added to the    ssh known hosts file and you won t get this error in Jenkins anymore

User · Answer

issue is with the  var lib jenkins  ssh known hosts  It exists in the first case  but not in the second one  This means you are running either on different system or the second case is somehow jailed in chroot or by other means separated from the rest of the filesystem  this is a good idea for running random code from jenkins   Next steps are finding out how are the chroots for this user created and modify the known hosts inside this chroot  Or just go other ways of ignoring known hosts  such as ssh-keyscan  StrictHostKeyChecking no or so

User · Answer

Copy host keys from both bitbucket and github   ssh root deployserver  echo    ssh-keyscan -t rsa dsa bitbucket org    gt  gt   root  ssh known hosts  ssh root deployserver  echo    ssh-keyscan -t rsa dsa github com    gt  gt   root  ssh known hosts

User · Answer

using https   bitbucket org YYYY XX git  you shoud delete username

User · Answer

Try  ssh-keygen -R hostname  -R hostname Removes all keys belonging to hostname from a known hosts file  This option is useful to delete hashed hosts

User · Answer

SSH  If you are trying it with SSH  then the Host key Verification error can come due to several reasons Follow these steps to overcome all the reasons    Set the Environment variable as HOME and provide the address as the root directory of  ssh folder  e g - If your  ssh is kept inside Name folder    C  Users Name  Now make sure that the public SSH key is being provided in the repository link also  Either it is github or bitbucket or any other   Open git bash  And try cloning the project from the repository  This will help in adding your repository URL in the known host file  which is being auto created in the  ssh folder  Now open jenkins and create a new job  Then click on configure   provide the cloning URL in Source code management under Git  The URL should be start with git github com           or ssh   proje         Under the Credential you need to add the username and password of your repository form which you are cloning the project  Select that credential  And now apply and save the configuration   Bingo  Start building the project  I hope now you will not get any Host Key verification error

User · Answer

Jenkins is a service account  it doesn t have a shell by design  It is generally accepted that service accounts  shouldn t be able to log in interactively   To resolve  Jenkins Host key verification failed   do the following steps  I have used mercurial with jenkins   1 Execute following commands on terminal                 sudo su -s  bin bash jenkins   provide password  2 Generate public private key using the following command                 ssh-keygen   you can see output as     Generating public private rsa key pair   Enter file in which to save the key   var lib jenkins  ssh id rsa    Enter passphrase  empty for no passphrase    Enter same passphrase again     3 Press Enter --  Do not give any passphrase--  press enter               Key has been generated   4  go to --  cat  var lib jenkins  ssh id rsa pub  5  Copy key from id rsa pub  6 Exit from bash  7  ssh yourrepository  8  vi  ssh authorized keys  9  Paste the key  10  exit  11 Manually login to mercurial server  Note  Pls do manually login otherwise jenkins will again give error  host verification failed   12 once manually done  Now go to Jenkins and give build  Enjoy     Good Luck

[jenkins] Jenkins Host key verification failed

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