What is ‘ssh_exchange_identification connection closed by remote host’ error?
In this article, we are going to discuss on How to fix ssh_exchange_identification connection closed by remote host. You are provided with easy steps/methods to resolve the issue. Let’s starts the discussion.
‘ssh_exchange_identification connection closed by remote host’ error:
It is common Problem considered as SSH Client problem. This error is usually appeared when you use SSH Client in your device and try to connect the server. This issue indicates you are unable to connect the server while using SSH Client in your device. The possible reasons behind the error can be the issue relating to host.deny and host.allow configuration files. It might possible both of these files were blocking your IP address from trying to use SSH on a remote server. You should make sure about it whether these files were not blocking your IP address from doing this.
Another possible reason behind the issue can be the dependency issues, something relating to memory fragementation or even a excessive number of sessions coming from individual clients. If you are facing the same and looking for ways to fix, then you are in right-place for the solution. Let’s go for the solution.
How to fix ssh_exchange_identification connection closed by remote host error?
Method 1: Check for Missing Dependencies
If you are facing the error after updating OpenSSL or Giblc, then chances to occur missing dependencies in your client device that is causing the error. You should check for missing dependencies. Many distribution can install updates to Gilbc or OpenSLL without restarting, and that’s why your distribution may not be in same category. If you know that the update has been installed, please use Isof to view the open file location of SSHD.
Method 2: Check for Extra SSH Sessions
It might possible you have limited number of SSH sessions that’s why you are facing the error. You can fix the issue by checking for extra sessions, you can try to clear the old sessions and reconnect to server. You can run ‘Who’ command to view logged-in user process and you should only see one or two users logged-in. In case if there are multiple concurrent users, you should kill the user process and they login again, and check if the error is fixed.
Method 3: Check for Fingerprint/keys corruption
You should make sure Fingerprint/keys have not corrupted. Actually, this issue is occurred if you installed these files manually. In such case, you need to try to delete server-side fingerprint in ‘~/.ssh/known_hosts’ client and try again. When reconnecting, it will asked to accept the host identity by clicking ‘Accept > Continue’, so you can proceed with it and once done, check if the issue is resolved.
Method 4: Check for server load
This issue can be occurred due to several load especially if you server is under heavy load. You should check whether the server has sufficient resources to perform this task, or whether it is subjected to brute force attacks. You can fix the issue by increasing number of connections that SSHD can run, and check if it works for you.
Conclusion
I hope this post helped you on How to fix ssh_exchange_identification connection closed by remote host with easy ways. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.
