How do I set outgoing rules in the edge firewall?

Bare Metal and VPS
1

Hello,

I am trying to use the edge firewall. Setting rules for incoming traffic is obvious enough. We are using the server as a web hosting server.

Our contact form uses Google recaptcha. If I turn the firewall on, it does not connect to the google server to download the script. I have tried allowing UDP 53 for DNS but didn't make a difference. I also want an automated outgoing ftp to connect to a remote server but that is also blocked.

What do I have to set?

The help page for the firewall is not helpful.

thanks,

Bob

2

Hi,

For the DNS you have to allow incoming request with SOURCE port 53 and UDP.

You don't filtrer the outgoing request, but the answser doesn't reach the server, as UDP doesn't work as TCP.

You should be fine if you allow incoming request from source port 53 on UDP.

3

Thanks for you reply but as I said, I have tried that.

setup attached

4

Regarding your other question, FTP is a weird protocol often broken by firewalls.

Consider using Passive mode in your FTP application. Or open port tcp/20 from any source.

Read: https://www.techbloat.com/how-to-allow-passive-ftp-through-firewall.html

5

this is the setup I tried

6

trying again to upload the screenshot

7

@FabL Hello, would it be possible not to block replies in the moderation queue, originating from people who have already been authorised to post ?

Example 2 replies from @BobSS that lead to error messages :

https://community.ovhcloud.com/t/1132

https://community.ovhcloud.com/t/1132

8

I have seen the exact same question and replies below the question.

This message is a duplicate (or the forum has again made the replies invisible)

9

Hello,

Could some explain why:

Last modification date is today by @FabL but there is no reply from him

Community-Pasted-Attachment-1759138133794.jpg1177×160 48.2 KB

and worse: when I open the topic the forum reports that there is ONE reply from me, but several replies follow.
How is it possible that such discrepancies do occur ?

Screenshot of the entire browser window attached below.

Screenshot 2025-09-29 at 11-26-01 How do I set outgoing rules in the edge firewall - OVHcloud Co.jpg1761×4014 1 MB

10

I wanted to edit my reply above just to add: In fact my last message was caused by the disappearance of the previous messages, 6 days ago.

Unfortunately the button does no action, nothing happens and the updated text is not saved. Grrrr. This explains the addition of yet another reply.