Tag Archives: Host key verification failed

[Solved] Jenkins deploy task error: Host key verification failed

Environment configuration: Jenkins + gitlab deployment

Jenkins reported the following error: host key verification failed; could not read from remote repository

Xshell logs in to the background to view the problems during deployment

The background directly uses the GIT command gitllab to check in locally

Then go to the page to deploy the task, and you can succeed

SCP Error: Host key verification failed [How to Solve]

1 scp Error: REMOTE HOST IDENTIFICATION HAS CHANGED!

[root@xx ~]# scp yum-3.4.3.tar.gz 10.xx.xx.12:/root
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
xxxxx.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending key in /root/.ssh/known_hosts:20
RSA host key for 10.xx.xx.12 has changed and you have requested strict checking.
Host key verification failed.
lost connection
[root@cache-2 ~]#

2, google, RSA error, either rebuild the RSA Key, or delete the Client’s known_hosts in the corresponding ip information records, here choose the latter.

 

 

3, first find the path of known_hosts
[root@xx tmp]# find/-name known_hosts
/root/.ssh/known_hosts

4, first backup the system files, before modifying
[root@cache-2 tmp]#
[root@cache-2 tmp]#
[root@cache-2 tmp]# cp /root/.ssh/known_hosts /root/.ssh/bak.20140526.known_hosts
[root@cache-2 tmp]#
[root@cache-2 tmp]# vim /root/.ssh/known_hosts
Find
10.xx.xx.12 ssh-rsaAAAAB3NzaC1yc2EAAAABIwAAAQEA0ifRyEQAdoH+1GFnFv+c+vzQ8tCIxREuAff57heXPt0sJpTNaJaB/RsFV4yKmBdyrOggdmxEdm1G851Ni+m

6OW7fzUdZnqfQaF/pAmu0fyhVGWa0rjNG6IVyrrFEMKxn8cgLSLfxSwfC8aM6y30sCBAeUy6xTUI2ImOMk9e9UR6vBSENweZUj53CqfIg/NfqL1GozSh

iKF4+Wt3zuQDVTMNbPeB3Yyp3U+v4TLnAaYgA5fjGGZmN0QUcI//toZpyVVWmFnxXUKhqFzmHDPNrlfgq2nCqXCdYUVCZHty7hupDY0YkzUt12VR5

Ifdg2BpvHZki5cPZL/046laeIX1DGw==
Delete!

5, then execute the scp command, enter the password, and the transfer is successful.
[root@xx ~]# scp yum-3.4.3.tar.gz 10.xx.xx.12:/root
[email protected]’s password:
yum-3.4.3.tar.gz                                                                                                                                             100% 1114KB   1.1MB/s   00:00
[root@xx ~]#

 

How to Solve host key verification failed

Hello, there is a small problem when accessing the remote server today.

1、 Finding problems

The problem is as follows:

$ ssh [email protected]
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
SHA256:HDjXJvu0VYXWF+SKMZjSGn4FQmg/+w6eV9ljJvIXpx0.
Please contact your system administrator.
Add correct host key in /Users/wangdong/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/wangdong/.ssh/known_hosts:46
ECDSA host key for 108.61.163.242 has changed and you have requested strict checking.
Host key verification failed.

There is a key sentence.

ECDSA host key for 108.61.163.242 has changed and you have requested strict checking.
Host key verification failed.

The general problem is that you reset your server. If you want to visit again, this problem will arise.

2、 Problem solving

The solution is simple:

ssh-keygen -R The IP address you want to access

For example:

ssh-keygen -R 108.61.163.242

Paste a picture more intuitive

All right. It’s a simple little problem
technology needs to be accumulated bit by bit. Without silicon, you can walk thousands of miles.