Corrupted data trying to uncompress zip sent by Cobian

[klopez]

Oh sorry, you mean the destination server?
The ftp server is an Ubuntu Server 22.04 and it's managed with Plesk

[cobian]

Yes, but Ubuntu can have a lot of different FTP servers: proftpd, vsftp, pureFtp, etc. I need the exact FTP server in order to test.

[klopez]

It's a proftpd, version 1.3.8b-v.ubuntu.22.04+p18.0.59.0+t240130.1403

[cobian]

Thanks. I'll do some tests

[cobian]

Tested on a ProFtpD server on Ubuntu and encounter no errors.

[Ushavilash]

Hey hi, please verify the FTP transfer mode setting in Cobian Backup and check that it's set to binary mode and also check for any discrepancies in file sizes between the original backup zip file and the one transferred via Cobian Backup.

[cobian]

The program never uses ASCII mode.

[klopez]

Hey hi, please verify the FTP transfer mode setting in Cobian Backup and check that it's set to binary mode and also check for any discrepancies in file sizes between the original backup zip file and the one transferred via Cobian Backup.

This is my ftp configuration on Cobian and the advanced one

aaaaaa.PNG (20.77 KiB) Viewed 334 times

adv_config.PNG (38.7 KiB) Viewed 334 times

[cobian]

Does it happen with any archive or only large ones? Is the zip64 extension being used?

[klopez]

It happens with any file. Zip64 extension is marked as "if necessary".

For example, now this is the error i get while trying to uncompress. I marked the CRC option to check if it fails or not

uncomp_error.PNG (19.24 KiB) Viewed 332 times