I've done tons of search and tested different solutions, but gain no success!

When I want to push my codes, I receive the following error:

Warning: the ECDSA host key for 'git.mywebsite.ir' differs from the key for the IP address ''
Offending key for IP in /home/alireza/.ssh/known_hosts:10
Matching host key in /home/alireza/.ssh/known_hosts:1
Are you sure you want to continue connecting (yes/no)? yes

What should I do to remove this message every time I push my changes? Any idea?

key list


It says:

Offending key for IP in /home/alireza/.ssh/known_hosts:10

So for some reason you have to delete 10-th line in known_hosts.

Run this command to delete 10-th line in known_hosts:

sed -i '10d' ~/.ssh/known_hosts

Or use ssh-keygen

ssh-keygen -R git.mywebsite.ir

Quote from man

 -R hostname
         Removes all keys belonging to hostname from a known_hosts file.
         This option is useful to delete hashed hosts (see the -H option
  • 7
    ssh-keygen -R git.mywebsite.ir solved my problem. – Alireza Apr 26 '14 at 10:57
  • 1
    didn't work for me, it keeps on asking question. – Waruna Ranasinghe Sep 10 '14 at 19:45
  • 3
    sed -i '1d' ~/.ssh/known_hosts or manually removing the line no. did work for me – Sumit Kumar Saha Nov 30 '16 at 8:52
  • If you're running this in Terminal on a Mac, you'll have to do sed -i '' '10d' ~/.ssh/known_hosts to avoid the "extra characters at the end of l command" error because it requires an extension to be specified. – Luke May 15 '18 at 16:51
  • if you want to remove the key based on ip address: ssh-keygen -R [ipaddress]:port. example of removing key for on port 3456: ssh-keygen -R []:3456 – Oki Erie Rinaldi Jun 5 '18 at 9:02

When I got the messages:

Offending key for IP in /home/myusername/.ssh/known_hosts:12

Notice the line number - in my case - 12

So open 'known_hosts' file and delete the 12-th row.

For me this solved the problem.

P.s. Notice if you cannot find the .ssh folder - the .ssh folder is hidden and in order to see it from the file manager - you have to "Show hidden files and folders". In Linux Mint (and possible in your distro too) when in the file manager - there is a shortcut to show/hide hidden folders -> Ctrl+H



You have to edit your known_hosts file (located in ~/.ssh/known_hosts) and remove an entry asociated with this address.

  • This IP address does not exist in known_hosts file. – Alireza Apr 26 '14 at 9:54
  • 1
    That's right, there is probably an entry with git.mywebsite.ir URL and another IP address. You should remove this line from known_hosts and then new IP adress will be associated with this host name. – kulak Apr 26 '14 at 10:06
  • There is nothing as my site URL in known_hosts file. I cannot even find git in the file. Could you take a look at the picture above? – Alireza Apr 26 '14 at 10:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.