Samba (Windowsh Share): how to enable SMBv1 protocol on server for old systems

Linux (any distro):

Add the following lines to the section [Global] in the /etc/samba/smb.conf

ntlm auth = ntlmv1-permitted

client min protocol = CORE
server min protocol = CORE

and restart the service:

systemctl restart smbd

Windows (10, 11, Server 2016, 2019, 2022):

Run Powershell with administrator’s privileges and execute:

Enable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol

Set-SmbServerConfiguration -EnableSMB1Protocol $true