There are 3 domains that you need to whitelite to enable access to upload files to TUF these are:
Original Message:
Sent: 06-13-2026 10:27
From: Nikhil Ayare
Subject: TUF upload issue
Do we have to whitelist https://tufportal.hds.com as well?
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Nikhil Ayare
Hitachi Vantara
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Original Message:
Sent: 06-12-2026 05:26
From: Ian White
Subject: TUF upload issue
Please see the below KB that has been published -
https://knowledge.hitachivantara.com/portal/app/portlets/results/viewsolution.jsp?solutionid=260612022319000
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Ian White
Senior Manager, GCSS Digital Strategy
Hitachi Vantara
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Original Message:
Sent: 06-11-2026 17:04
From: Nikhil Ayare
Subject: TUF upload issue
We are facing 403 forbidden error during file upload to Hitachi TUF portal on chrome browser dev tools
Observed that upload traffic to:
https://tufportal.hds.com/api/files/...
is being intercepted by Zscaler.
and tufportal.hds.com is an mft site where files are actually uploaded and saved.
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Nikhil Ayare
Hitachi Vantara
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Original Message:
Sent: 06-11-2026 16:56
From: John Hendricks
Subject: TUF upload issue
Hello Nikhil,
Try using the following URL, https://tuf.hitachivantarta.com/upload.php
That is what works for me, however, I don't think that is going through zscaler. I think it going through a checkpoint proxy server.
Thanks,
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John Hendricks
Storage Administrator
FIS Total Issuing Services
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Original Message:
Sent: 06-11-2026 15:39
From: John Hendricks
Subject: TUF upload issue
Hello Nikhil,
I had a similar issue with Zscalar as well. It turned out that there was a separate firewall between my devices and the Zscalar. Run this command in your environment from your device and see if it works. curl -v -x http://<replace with your ip for your zscaler proxy server>:443 https://ip.zscaler.com If it is successful, then it would be something related to the zcalar rules. If it fails, that means you have a firewall between your devices and the zscaler. Getting the intermediate firewall rules in place is what resolved my issue without any changes to the zscaler proxy. Hope this helps.
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John Hendricks
Storage Administrator
FIS Total Issuing Services
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