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Akeeba Backup for Joomla!

#42475 Post-Processing WebDAV to my Synology NAS fails

Posted in ‘Akeeba Backup for Joomla! 4 & 5’
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Environment Information

Joomla! version
6.0.1
PHP version
8.4
Akeeba Backup version
10.1.0

Latest post by nicholas on Friday, 28 November 2025 07:02 CST

Friday, 28 November 2025 02:55 CST

crimleit

Hi Nicholas

as a result of the poor experiences with kDrive by Infomaniak (see ticket  #42470) I am trying post-processing to my own Synology NAS. Unfortunately this fails too and I am unable to find out why. 

The WebDav URL is https://DSCH8266.synology.me:5006/akeeba-backup/

I tested this with a tool called RaiDrive and the connection was established without an error. So the URL, the folder and the credentials are obviously correct. 

The logfile says:

Akeeba\Engine\Postproc\Webdav::processPart - WebDAV upload failed, 0:
Akeeba\Engine\Postproc\Webdav::processPart - Maximum number of retries exceeded. The upload has failed.

but there is no precise information about the reason for this failure. You probably will see more than I.

Thank you very much and kind regards
Chris 

Friday, 28 November 2025 04:07 CST

nicholas

I would recommend instead using one of the two SFTP method to upload files to Synology. It supports bigger files, it is faster, and it uses better encryption. Pay attention to the directory, though. The SFTP directory, unlike most other SFTP servers, does NOT match the actual filesystem path where the sites are stored; it appears as a subdirectory of root with a name equal to the DSM share's name. If your share is named FooBar then the SFTP directory for that share is /FooBar and it's case-sensitive!

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

Friday, 28 November 2025 05:52 CST

crimleit

Thank you Nicholas for this recommendation. I will try SFTP or maybe FTP.

Just a followup to my reported issue:

I was curious and tried with another website that is being hosted at a different webhoster. Here post-porocessing with WebDAV works fine. So this webhoster obviously does not like WebDAV and is blocking it?

Kind regards
Chris 

Friday, 28 November 2025 07:02 CST

nicholas

It would appear to be the case. Most likely, they have a transparent proxy which may be dropping headers or part of the POST/PUT payload. I have seen that before. That's why I recommended SFTP for Synology, as it's a completely different protocol which does not go through a transparent proxy.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

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