FTP server works with filezilla, not wih reolink cameras

[reolink mcacc_515883554820236]

Hello everyone,
I'm seeking help with the setup of an FTP server on a Raspberry Pi running the latest Pi OS that can receive surveillance clips from a RLC-520 (running the latest firmware).

I set up the vsftpd service and checked that it works with filezilla on a separate machine: I'm in fact able to log in and create folders/files. However, I cannot get it to work with my RLC-520.
For the record, I did run "Test FTP" on port 21 (which works on filezilla) as well as ports 20, 22, 1935, 9000, 14147, 37777 (as recommended on other websites), but it always fails.

ufw is running on the pi with the following ports open (I did try to open them one after another for trial and error's sake):
20, 21, 22, 80, 443, 554, 1935, 989, 990, 5000:10000, 14147, 37777.

Looking forward to any suggestion.

Thank you!

[Reolink Fiona]

@reolink-mcacc_515883554820236
Hi there, you can check if you configure the FTP in LAN. You can also check if your firmware is the latest one. The latest firmware for the RLC-520 is v3.0.0.136. You can download it here, https://reolink.com/us/download-center/.

You can check more information here.
https://support.reolink.com/hc/en-us/articles/900002125826-FTP-Test-Failed

If it still can't work, please submit a request here, Submit a request – Reolink Support.

[joseph_1979]

@reolink-mcacc_515883554820236 tcpdump will tell you what's wrong. Capture a trace and forward it to Reolink support to analyze. Wireshark is fantastic and of course one needs to know the protocols. I deleted Linux from my machine and have no time to install and test it out. Most probably it will work.

[Philippe Lemesle_403009378467994]

Does someone knows how to solve this issue ? (I’m using VSFTPD on Raspbian)

[user_606056657829954_606056657829954]

I'm having the same issue.
I've successfully transferred files to & from my Raspberry Pi via FTP from my computer, but the FTP Test fails from the Reolink NVR.
I have submitted a support ticket, so hopefully they get back to me soon.

[user_614688609960018_614688609960018]

I've been working on the Reolink ftps Pi vsftpd problem for a few days. I am trying to post my vsftpd.conf file that works with Reolink ftp. Note this only works for ftp, not ftps. Note there are some throwaway lines in the file intended to make ftps work. I have requested some details from Reolink regarding Reolink's implementation of ftps, as I am able to use a Filezilla client to acces my vsftpd server with both implicit and explicit ftps. Please post your progress.

Lesson learned... Don't put your camera on the guest network and expect to ftp back to your lan.

Don't forget to update ufw with
sudo ufw allow 30000:31000/tcp
and
sudo ufw allow 20,21,990/tcp

Look for my vsftpd.conf file in an upcoming reply... Somehow it's getting blocked for containing links. (Which it does not).

[user_614688609960018_614688609960018]

OK, here is a screen shot of my vsftpd.conf file. Google adamtheautomator and vsftpd. He has written a good guide.

[joseph_1979]

@user_614688609960018_614688609960018 Can you capture a tcpdump at the server side to see what error is being thrown to the client? Can you add sslv2 and v3 and tlsv1 together with force local data and local login? Maybe it is a cipher algorithm or the key is less than 1024. Check it on wireshark. Implicit is rarely used...most common is the explicit.

[user_614688609960018_614688609960018]

@joseph-chircop_497308027822318 I forwarded my configuration and logs to Reolink yesterday and will be testing some software for them shortly. The tcpdump is very do-able and if the new software doesn't help I will be trying it. I will also give wireshark a try. Thank you for these suggestions. I have also learned that Reolink cameras use explicit. Thank you!