Issue BUG Plesk 18.0.77 - FTP backups no longer work

[Amauri]

It's resolved.

Can you detail what you've done to fix the issue ?

 

[Amauri]

Disabling "Use FTPS" fix the issue but there is obviously a regression on the Plesk update.

 

[manos]

It seems this happens with plesk 18.0.77 when the remote ftp server is pure-ftpd
Solution
Edit pure-ftpd config file
Put on at Broken Clients Compatibility (at firts lines it is)
restart pureftpd

 

[janpieterk]

Our setup: Plesk 18.0.77 Update #2 running on Ubuntu 20.04.6 LTS.
Backup target: FTPS provided by pure-ftpd (running in docker, stilliard/pure-ftpd - Docker Image)
We had the same problem: all FTPS backups failed since updating Plesk from 18.0.76 to 18.0.77.
The suggestion by @manos solved the problem: after adding the cli flag --brokenclientscompatibility to the docker-compose file backups work again.

 

[Jens Johansson]

Our setup: Plesk 18.0.77 Update #2 running on CloudLinux 8
Backup target: FileZilla Server 1.12.6

We have also the issue, that a backup fails with FTP error 425. The server responds "425 Unable to build data connection: TLS session of data connection not resumed." Contrary to others in this thread curl fails with the same error message. Our curl version is 7.61.1-34.el8_10.11. If we try the same command with a newer curl version 8.17 there is no error and the connection works flawlessly. Does pleskbackup use the bundled curl 8.19 from Plesk 18.0.77#2 or does it use curl from the operating system?