What is Idmap?
John H. This chapter deals with identity mapping (IDMAP) of Windows security identifiers (SIDs) to UNIX UIDs and GIDs. To ensure sufficient coverage, each possible Samba deployment type is discussed. The IDMAP facility is of concern where more than one Samba server (or Samba network client) is installed in a domain.
What is Idmap config in Samba?
The use of IDMAP is important where the Samba server will be accessed by workstations or servers from more than one domain, in which case it is important to run winbind so it can handle the resolution (ID mapping) of foreign SIDs to local UNIX UIDs and GIDs.
Where is SMB Conf located?
/etc/samba directory
It’s called smb. conf and is usually located in the /etc/samba directory, although some distributions may place this file in another location.
What is SMB configuration?
The smb. conf file is a configuration file for the Samba suite. smb. conf contains runtime configuration information for the Samba programs. The complete description of the file format and possible parameters held within are here for reference purposes.
What is winbind?
Winbind is a client-side service that resolves user and group information on a Windows server, and allows Oracle Linux to understand Windows users and groups. In the server security model, the local Samba server authenticates user names and passwords with another server, such as a Windows NT server.
What is NFS Idmap?
Description. The file /usr/sbin/nfsidmap is used by the NFS idmapper to translate user and group ids into names, and to translate user and group names into ids.
How do I find my SMB conf?
How to Verify the Installation and Configuration of Samba
- Test the Samba smb.conf file. # /testparm \ /lib/smb.conf.
- Test the Winbind smb.conf file (if required) # /testparm \ /lib/smb.conf.
How do I change my SMB conf?
The main Samba configuration file is located at: /etc/samba/smb. conf . You can edit it in terminal with a command line text editor like nano . In the [global] section, make sure the value of workgroup is the same with the workgroup settings of Windows computers.
What is SMB Conf used for?
The /etc/smb. conf file is the main configuration file for the Samba server, in which you can specify which directory you want to access from Windows machines, which IP addresses are authorized, and so on.
How do I check my winbind service?
After winbind service is started, you may check/get information from winbind daemon using wbinfo tool.
Where is the mapping information stored in idmap ( 8 )?
If configured to use a directory service, idmapd (8) will first try to use the mapping information that is stored in user or group objects in the Active Directory (AD) and/or the native LDAP directory service.
What are the operands of the idmap command?
The idmap command uses the following operands: Specifies the format in which user name mappings are described for the export and import subcommands. The Netapp usermap.cfg and Samba smbusers external formats are supported. These external formats are only for users, not groups.
What can the idmap utility be used for?
The idmap utility can be used to create and manage the name-based mappings and to monitor the mappings in effect. If the idmap utility is invoked without a subcommand or option, it reads the subcommands from standard input.
How is an UID or GID allocated in idmap?
A UID or GID is dynamically allocated for every SID that is not already mapped by name. Local-SID mapping. A non-ephemeral UID or GID is mapped to an algorithmically generated local SID. The idmap utility can be used to create and manage the name-based mappings and to monitor the mappings in effect.
