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NO.15 빈칸 채우기
Which sub command of net groups commands related to an AD membership, as in the following example? (Specify ONLY the subcommand without any path or parameters.) net ___ join

ads
설명:
The net command is used to administer Samba and Windows servers. The subcommand ads is used in conjunction with the join command to join a Samba server to an Active Directory domain. The correct subcommand that fits the pattern net ___ join is ads.
참조:
Samba net command man page

NO.16 What is a correct statement about FreeIPA ID views?

 ID views are used to modify sudo rules on a per host base.

 ID views are the FreeIPA equivalent to Active Directory SIDs.

 ID views specify new values for attributes of a POSIX user or group.

 ID views provide a consecutive numberspace of UIDs and GIDs for FreeIPA users and groups.

 ID views always manage IDs from 32768 to 65536.

In FreeIPA, ID views allow administrators to override default POSIX attributes for users and groups. This feature is useful when integrating with other identity management systems, enabling specific attribute values to be used on a per-host basis. This way, different POSIX attributes can be set for the same user or group in different contexts.
참조:
FreeIPA: ID Views
FreeIPA Documentation

NO.17 Given a proper network and name resolution setup, which of the following commands establishes a trust between a FreeIPA domain and an Active Directory domain?

 trustmanager add –domain ad://addom –user Administrator -w

 ipa-ad –add-trust –account ADDOMAdministrator –query-password

 net ad ipajoin addom -U Administrator -p

 ipa trust-add –type ad addom –admin Administrator –password

 ipa ad join addom -U Administrator -W

To establish a trust between a FreeIPA domain and an Active Directory domain, the correct command is ipa trust-add. This command is used to add a trust relationship with an Active Directory (AD) domain. The –type ad specifies the type of the trust, addom is the domain name, –admin Administrator specifies the AD administrator account, and –password prompts for the administrator’s password.
The complete command looks like this:
a trust-add –type ad addom –admin Administrator –password
This command will initiate the trust creation process, which involves providing the credentials of the AD administrator.
참조:
FreeIPA Trusts
FreeIPA Trust Management

NO.18 Which option in smb.conf defines the domain of which the server is a member?

 ad

 member domain

 basedn

 domain

 realm

In smb.conf, the realm option specifies the Kerberos realm for the Active Directory of which the server is a member. This option is crucial for integrating the Samba server into an AD environment.
참조:
Samba smb.conf man page – realm

NO.19 Which of the following commands open NFSv4 ACLs in an editor? (Choose two.)

 nfs4_setfacl -e

 nfs4_editfacl

 nfs4_stat -e –acl

 nfs4_chmod -i

 nfs4_conf

To open NFSv4 ACLs in an editor, the following commands can be used:
nfs4_setfacl -e: This command is used to set NFSv4 ACLs, and the -e option opens the ACLs in an editor for modification. The command usage is:
This opens the ACL editor where the user can modify the ACLs for the specified file.
nfs4_editfacl: This command is a more intuitive way to edit NFSv4 ACLs directly in an editor. It provides a user-friendly interface for managing ACLs.
참조:
NFSv4 ACL Tools Documentation
NFSv4 ACLs

NO.20 Which of the following commands connects to the share Share on the Windows Server 2012 R2 server fs1 using the SMB3 protocol?

 smb3client //fs1/Share

 smbclient –max-protocol SMB3 //fs1/Share

 smbclient –w2k12 //fs1/share

 smbclient -p 3 //fs1/Share

 cifsclient //fs1/Share

To connect to a share on a Windows server using the SMB3 protocol, the smbclient command with the –max-protocol option should be used. The –max-protocol option allows you to specify the highest SMB protocol version that should be used. Therefore, the correct command is smbclient –max-protocol SMB3 //fs1/Share.
참조:
smbclient man page
Samba: smbclient Command Options

NO.21 What are benefits of registry based Samba configuration compared to file based configuration? (Choose three.)

 Server processes require less time to start because they do not have to parse the configuration file.

 Specific attributes of LDAP objects in Active Directory can be overwritten in the configuration registry.

 The registry can be edited remotely without logging into the server.

 Registry based configuration supports advanced options which do not exist in smb.conf.

 Configuration changes become effective immediately without a daemon reload.

NO.22 빈칸 채우기
What service name must be added to a database entry in /etc/nsswitch.conf to include SSSD as a source of information? (Specify ONLY the service name without any parameters.)

sss
설명:
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.
참조:
SSSD documentation
nsswitch.conf configuration guidelines

NO.23 Which of the following statements about automount in a FreeIPA domain are true? (Choose two.)

 In a FreeIPA domain, mount points for automount are always directories.

 The command ipa automount up mounts all file systems handled by automount on a FreeIPA client.

 The base configuration file for automount is /etc/auto.master.

 In a FreeIPA domain, automount requires SSSD to be installed on each client.

 In a FreeIPA domain, automount can only mount NFS shares from FreeIPA servers.

Automounting in a FreeIPA domain involves several key aspects:
Base Configuration File (/etc/auto.master): The auto.master file is the main configuration file for the automounter. It contains the master map which defines mount points and their corresponding maps. This file is crucial for setting up automount points.
Example entry in /etc/auto.master:
plaintext
코드 복사
/home /etc/auto.home
SSSD Requirement: In a FreeIPA domain, automount requires the System Security Services Daemon (SSSD) to be installed and configured on each client. SSSD is used to retrieve automount maps from the FreeIPA server, enabling the automount feature to function correctly.
Example configuration in /etc/sssd/sssd.conf:
[sssd] services = nss, pam, autofs config_file_version = 2 domains = example.com [domain/example.com] autofs_provider = ipa ipa_server = _srv_ Reference:
Automount Configuration
FreeIPA SSSD Integration

NO.24 In a Samba configuration file, which of the following variables represents the domain of the current user?

 %D

 %r

 %d

 %G

 %w

In a Samba configuration file, variables can be used to represent dynamic values.
The %D variable represents the domain of the current user.
This variable can be used in various configuration directives to customize the behavior of Samba services based on the user’s domain.
참조:
Samba variables documentation: https://www.samba.org/samba/docs/current/man-html/smb.conf.5.html

NO.25 Which of the following commands adds a forward DNS record named fileserver01 pointing to the IPv6 address 2001:db8::190 into the DNS zone samba.private on the Samba 4 server dc1?

 net dns -S dc1 -U Administrator addrecord fileserver01.samba.private AAAA 2001:db8::190

 dnstool -f dns.tdb add fileserver01.samba.private AAAA 2001:db8::190 -U Administrator

 samba-dns dynupdate -S dc1 -U Administrator -h fileserver01.samba.private -t AAAA -V 2001:db8::190

 nsupdatesmb -U Administrator //dc1/samba.private/fileserver01 add AAAA 2001:db8::190

 samba-tool dns add dc1 samba.private fileserver01 AAAA 2001:db8::190 -U Administrator

Command The samba-tool dns add command is used to add DNS records in Samba.
Parameters:
dc1: Specifies the Samba DNS server.
samba.private: The DNS zone.
fileserver01: The hostname for the new DNS record.
AAAA: Specifies that the record is for an IPv6 address.
2001:db8::190: The IPv6 address to be assigned to the hostname.
-U Administrator: Specifies the user performing the operation, in this case, the Administrator.
Usage: This command properly adds a forward DNS record for fileserver01 with the specified IPv6 address into the samba.private zone on the server dc1.
참조:
Samba DNS Administration

NO.26 Which of the following commands terminates all running instances of the Samba daemon handling for SMB shares?

 smbcontrol samba shutdown

 smbcontrol nmbd shutdown

 smbcontrol shutdown

 smbcontrol smbd shutdown

 smbcontrol cifs stop

Samba is a suite of programs that allows SMB/CIFS clients to interact with file and print services on a Linux/UNIX server.
smbd is the Samba daemon responsible for handling SMB/CIFS requests.
The smbcontrol utility is used to send messages to running Samba daemons.
The correct way to terminate all running instances of the Samba daemon handling SMB shares is to send a shutdown message to smbd using the command smbcontrol smbd shutdown.
This command ensures that only the smbd processes, which are responsible for handling SMB shares, are terminated without affecting other Samba components like nmbd (NetBIOS name server daemon).
참조:
Samba documentation: https://www.samba.org/samba/docs/current/man-html/smbcontrol.1.html

NO.27 빈칸 채우기
What command checks the Samba configuration file for syntactical correctness? (Specify ONLY the command without any path or parameters.)

testparm
설명:
Purpose of the Command: testparm is used to check the Samba configuration file (smb.conf) for syntax errors.
Command
Running testparm will read the smb.conf file, parse it, and display any syntax errors or warnings. This helps ensure that the configuration is valid before restarting the Samba service.
Usage Example:
Simply execute testparm in the terminal, and it will automatically check the default configuration file.
참조:
Samba.org – testparm

NO.28 Which of the following TCP ports is used to provide the SMB protocol without NetBIOS?

 133

 138

 139

 386

 445

The SMB protocol (Server Message Block) is used for providing shared access to files and printers.
Historically, SMB ran on top of NetBIOS over TCP/IP using port 139.
SMB can also run directly over TCP/IP without the NetBIOS layer, which uses port 445.
Therefore, TCP port 445 is used to provide the SMB protocol without NetBIOS.
참조:
Official IANA port numbers: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml Microsoft documentation on SMB: https://docs.microsoft.com/en-us/windows/win32/fileio/microsoft-smb-protocol-and-cifs-protocol-overview

NO.29 When logging into a windows workstation which is member of an Active Directory domain, which of the following user names refers to the local account bob instead of the domain-wide account bob?

 bob@local

 %bob%

 .bob

 “bob”

 bob$

When logging into a Windows workstation that is a member of an Active Directory domain, the .\ prefix is used to specify a local user account rather than a domain account. Therefore, to refer to the local account bob, you would use .\bob.
참조:
How to Log On to Your Computer if You Are a Domain User
Windows Logon Naming Conventions

NO.30 Which of the following commands can be used to join the local Samba server as a member to the domain samba.private?

 samba-tool member add samba.private

 samba-tool domjoin samba.private

 samba-tool domain join samba.private member

 samba-tool join samba.private member

 samba-tool node set-domain samba.private

Understanding Samba Domain Join: Joining a Samba server to a domain allows it to authenticate and provide resources to users of that domain.
Command Breakdown: The correct command format for joining a Samba server as a member of a domain involves the “domain join” action followed by the domain name and the role. In this case, “samba.private” is the domain name, and “member” specifies the role.
Command
samba-tool domain join samba.private member:
samba-tool: A command-line utility for managing Samba.
domain join: Specifies the action of joining a domain.
samba.private: The domain to join.
member: The role within the domain.
참조:
Samba Wiki – Samba Tool

NO.31 Which parameters are available for samba-tool group add? (Choose two.)

 –default-gpo

 –groupou

 –login-script

 –sid

 –group-type

The samba-tool group add command is used to add a new group to the Samba Active Directory. This command has several parameters to customize the group creation process. Two of the available parameters are –sid and –group-type.
–sid:
The –sid parameter allows you to specify a Security Identifier (SID) for the new group.
Example usage:
samba-tool group add mygroup –sid=S-1-5-21-1234567890-123456789-1234567890-1234 This command will create a new group named mygroup with the specified SID.
–group-type:
The –group-type parameter allows you to specify the type of the group being created. This can be a security group or a distribution group.
Example usage:
samba-tool group add mygroup –group-type=security
This command will create a new security group named mygroup.
참조:
Samba Official Documentation: samba-tool
Samba Active Directory Management: Managing Groups

NO.32 Which smbclient invocation displays a list of the available SMB shares on the remote Samba server FileSrv1?

 smbcontrol -L FileSrv1

 smbshares –server FileSrv1

 smbstatus -S FileSrv1

 smbmount -L FileSrv1

 smbclient -L FileSrv1

The smbclient command is used to access shared resources on a network that uses the SMB (Server Message Block) protocol. To list the available SMB shares on a remote Samba server, the correct invocation is smbclient -L <server_name>. Here, -L stands for “list” and <server_name> is the name of the Samba server. Therefore, smbclient -L FileSrv1 will list all the available SMB shares on the server named FileSrv1.
참조:
smbclient man page
Samba: smbclient Command

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