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SFTP on ubuntu 20.04

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Flo_Agrileader

I'm trying to set a sftp on my ubuntu 20.04, I have 2 users dev & prod and I want them to connect to folder /opt/tomcat/webapps/dev_project for dev & /opt/tomcat/webapps/prod_project for prod.

Both are in the group www-data, www-data is the owner of every projects in /opt/tomcat/webapps/

These ports are allowed with ufw

I changed ports in my sshd_config 50xx2 & 50xx3 (50xx2 for ssh & 50xx3 for sftp) and add this to the end of the file :

Subsystem sftp internal-sftp
Match User dev LocalPort 50xx3
        ChrootDirectory /opt/tomcat/webapps/dev_project/
        ForceCommand internal-sftp
        X11Forwarding no
        AllowTcpForwarding no
        PasswordAuthentication yes
Match User prod LocalPort 50xx3
        ChrootDirectory /opt/tomcat/webapps/prod_project/
        ForceCommand internal-sftp
        X11Forwarding no
        AllowTcpForwarding no
        PasswordAuthentication yes

Now I have 2 problems : I can connect dev or prod, but only with port 50xx2, but the chrootdirectory is / not that I set in the sshd_config file. If I try to connect to the 50xx3 port, I have a authentification error

Thanks for your advices

EDIT :

Well, now it's ok, I juste missunderstood user/group permissions on folders

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