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Question

SFTP Error: "Could not change directory to “/var/www/domain.com”. Invalid response serial number."

I can’t seem to upload to my Droplet via SFTP. I can log in but if I try to upload files I get this error.

Could not change directory to “/var/www/domain.com”. Invalid response serial number.

Any ideas? I tried to just reset the root password but that didn’t help.

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alexdo • June 23, 2020

Hello, @Coopgrafik

Would you mind checking the current disk space usage on your droplet? You can do that using the following command via ssh:

df -h

I assume you’re experiencing this error in your SFTP client (FileZilla or another). What you can also do is to check that the permissions of the folder are not 000 and are readable, writable - 755 or 750 should work for you.

You can also try to connect using the sftp client in your terminal/command line:

sftp -oPort=custom_port sammy@your_server_ip_or_remote_hostname

in order to get in another directory you can issue this command:

cd testDirectory

If everything is working then this might be an issue with the SFTP client. You can also check this tutorials:

https://www.digitalocean.com/community/tutorials/how-to-use-sftp-to-securely-transfer-files-with-a-remote-server

https://www.digitalocean.com/community/tutorials/how-to-use-filezilla-to-transfer-and-manage-files-securely-on-your-vps

Let me know how it goes.

Regards, Alex

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