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How do I set outgoing rules in the edge firewall?

B
Von
BobSS
Erstellungsdatum 2025-09-23 09:12:59 (edited on 2025-09-29 07:52:48) in Serveurs dédiés

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

 
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3 Antworten ( Latest reply on 2025-09-29 09:34:40 Von
fritz2cat 🇧🇪 🇪🇺
)

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.
Hilfreich (0)

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

 
Hilfreich (0)

@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/community?id=community_question&sys_id=5d5efe9f110cf2181e118b5b93ec9703&anchor=answer_dda38fdf114cf2181e118b5b93ec9727

https://community.ovhcloud.com/community?id=community_question&sys_id=5d5efe9f110cf2181e118b5b93ec9703&anchor=answer_c9440b57118cf2181e118b5b93ec9719
Hilfreich (1)

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)

 
Hilfreich (0)

Hello,

Could some explain why:

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

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.
Hilfreich (0)

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.
Hilfreich (0)

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