Forum Discussion
Adolfo
Nimbostratus
NimbostratusF5 LTM upload a file issue
Hello,
I'm pretty new with F5 and I'm changing an old F5 for a new one, all seems to be good, I can access to all websites and applications, but in a website there is a pop-up window that allows to upload files, I can select the file then clicked in upload but it didn't work, the pop-up windows does not show any error message and in the F5 I can't find anything relate to this in ltm logs, the file is just not uploaded. I tried to talk with dev team to ask about the communication process, but it looks like they even don't know, so, I want to know if you have any recommendation regarding in how to do the troubleshooting in here?
I'll appreciate all your recommendations. Regards
- Daniel_Wolf
MVP
Hi Adolfo,
there are a couple of ways to troubleshoot this issue:
- Try with a different browser ( I guess you did that already).
- Open the developer tools of your preferred browser (F12 or from the menu) - look for messages that could explain this behaviour.
- Try a tcpdump on the BIG-IP, look if you can identify an issue there.
If you are new to packet capturing, I will recommend you the following resources
- K411: Overview of packet tracing with the tcpdump utility
- K2289: Using advanced tcpdump filters
- K1893: Packet trace analysis
- In case your application is using TLS: K31793632: Create a Decrypted Capture Without Using an iRule
- and in general: Chris Greer's YouTube channel
KR
Daniel
