![]() Now, check if the “SSH_exchange_identification: connection closed by remote host” issue has been fixed. If there are multiple concurrent users, you should kill the user process, and try to log in again. You should only see one or two users logged in. You can run the who command to view the logged-in user process. Then, you can try to clear the old session and reconnect to the server. Maybe, you don’t know the maximum number of SSH sessions and you exceed it. If the “SSH_exchange_identification: connection closed by remote host” error message still appears, you can also check for extra SSH sessions. Read More Fix 2: Check for Extra SSH Sessions If you are using Ubuntu or Debian, you should use the upgrade command to obtain the new package and install it. If you know that the update of Glibc has been installed, please use lsof to view the open file location of SSHD. Although many distributions can install updates to Glibc or OpenSSL without restarting, your distribution may not be in the same category. If you only receive the “connection closed by remote host” error message after updating OpenSSL or Glibc, it’s recommended to check for missing dependencies. #Ssh copy id no known hosts how toRelated Article: How to Set up SSH Client and Server on Windows 10 How to Fix SSH_Exchange_Identification: Connection Closed by Remote Host Fix 1: Check for Missing Dependencies Now, let’s see how to fix the “SSH _exchange_identification” issue. ![]() This issue can be caused by several reasons, such as the problems related to ny and hosts.allow configuration files. When you use the SSH client to connect the server, you may encounter the “SSH_exchange_identification: connection closed by remote host” issue. How to Fix SSH_Exchange_Identification: Connection Closed by Remote Host.If you want to find some methods to fix the issue, you can read this post from MiniTool. When you use the SSH client, you may receive the “SSH_exchange_identification: connection closed by remote host” error message. ![]()
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