Cannot edit files using users or admin account

My YunoHost server

Hardware: VPS bought online
YunoHost version: yunohost (stable)
I have access to my server : Through SSH | through SFTP
Are you in a special context or did you perform some particular tweaking on your YunoHost instance ? : no
If yes, please explain:

Description of my issue

After the latest updateI red that I should use admin and not root, as a matter of fact, I cannot even connect with root anymore as the certificate I was using is not accepted anymore by the server.
So, I connect with user admin or any other SSO users, I can read the files, but I cannot edit them.
Each folder below /var/www/ has its own user:group as the application name, ie. : wordpress:wordpress, in the web interface I gave access to each user I need, but still, cannot modify anything.
One hypothesis I have is that I should edit /etc/group file, what I can see there is that groups exist but no user is listed under wordpress or any other application I have installed. But if that is so, I wonder what happened, why none was automatically created.

Une fois connecté sur votre système ssh admin@votredomaine.tld, vous devriez pouvoir faire un su et passer en root.
Je vais faire traduire en ligne, mon anglais est très mauvais :frowning:
Hello, Once connected to your system ssh admin@yourdomain.tld, you should be able to do su and go as root. I will translate online, my english is very bad :frowning:

Merci for your reply.
I guess you are referring to the sudo command in ssh?
But what if I want to use an FTP client such as filezilla or WinSCP?

You can connect with root user on a local network, but you can’t connect with root from remote public ip.

You can decide to authorize some ips in the ssh config file:

Other solution

It might be possible to connect first with :

ssh admin@YOURSERVER.TLD -L 22:localhost:22

Next you can make a sftp with root on localhost:22 . But it seems internal ip ( are not allowed to connect as well… I will change the code for that.

The Pull request to autorize localhost ips:

for now what I’m doing is change ownership of files, at least temporarily, then I’ll put them back once done.

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