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Ssh_exchange_identification: Connection Closed by Remote Host [Fix]
Check the server load or any issues with it
3 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
While using an SSH client to connect to yourserver, you may encounter some uglyerrors. One sucherroris thessh_exchange_identification: connection closed by remote hostin Windows. The error appears on other operating systems as well.
Thiserrorcan occur due to many reasons, including the SSH keys used for a connection being corrupt or issues with the server. Keep reading to find out how you can fix things when a ssh connection is closed by a remote host immediately!
How do I fix connection closed by remote host?
Before we move to the slightly complex solutions, verify these first:
If none work, head to the fixes listed next.
1. Check for missing dependencies
This ssh_exchange_identification:connection closed by remote hostWindows error usually occurs after a Glibc or OpenSSL update and the server fails to restart.
While many distros can install the update to Glibc or OpenSSL and not require a restart, yours may not fall in the same category.
If you know the update for the Glibc is installed, uselsofto see where the SSHD has open files. For those using Ubuntu or Debian, use the upgrade command to get new packages and install them. This will help fix any issues that may have occurred due to broken packages.
2. Check for extra SSH sessions
It is possible that the users may have exceeded the maximum number of SSH sessions without knowing it.
Thisssh_exchange_identification: connection closed by remote hosterror in Windows or Linux occurs if the SSH can’t keep up with a script that starts multiple SSH sessions back to back. You can also delay the SSH session with the sleep command.
3. Check for corrupted fingerprints/keys
If the issue persists, check for corrupted fingerprints or keys. This is most likely to happen if you have installed these files manually.
Once done, find out whether the connection is still lost after thessh_exchange_identification connection closed by remote host lost connectionerror. In all likelihood, things should be up and running.
Before you leave, find out some quick and easy tips toimprove the performance of your Windows PC.
If you have any other questions or suggestions, feel free to leave them in the comments section below.
More about the topics:Fix network issues,windows servers
Tashreef Shareef
Tashreef Shareef is a software developer turned tech writer. He discovered his interest in technology after reading a tech magazine accidentally. Now he writes about everything tech from Windows to iOS and streaming services to IoT at WindowsReport.
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