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samba-tool drs: This set of commands is used to manage directory replication in an Active Directory domain. DRS stands for Directory Replication Service.

Functionality: It provides various subcommands to monitor, manage, and troubleshoot replication issues.

Other Commands:

samba-tool repl, directory, domain, sync: These do not specifically manage directory replication in the same way as samba-tool drs.

Samba DRS Command Documentation

Adding SSSD to /etc/nsswitch.conf:

To include SSSD (System Security Services Daemon) as a source of information in the /etc/nsswitch.conf file, the service name sss must be added. This is specified without any parameters. The sss service allows the system to retrieve information from various sources, such as LDAP, Kerberos, and others, as configured in SSSD.

SSSD documentation

nsswitch.conf configuration guidelines

The effective permissions of a file created with the permissions 777 can be calculated considering the create mask and force create mode.

create mask = 711 implies that the permission bits are ANDed with 0711, i.e., only the owner can read, write, and execute.

force create mode = 750 implies that certain permission bits are always set, specifically 0750, i.e., read, write, and execute for the owner, and read and execute for the group.

The create mask reduces the permissions to 0711, and then force create mode adds the 0750 mask to the result.

Original permission: 777 AND with create mask (711): 711 OR with force create mode (750): 751

Thus, the effective permission is 751.

Samba smb.conf man page - create mask

When browseable = no is set in the [homes] section of smb.conf, it prevents the share from appearing in the list of available shares when users browse the server. However, users can still access their home directories if they specify the correct UNC path directly.

A . When browsing the Samba server, there is no visible share named after the current user.

The share will not appear in the list of shares visible to the user during browsing.

D . The homes share can be directly accessed by specifically opening this share by its UNC path.

Users can still access the share by directly typing the path in the form \\servername\username.

Samba Official Documentation - Home Directories