Lpi 300-100 : LPIC-3 Exam 300: Mixed Environments, version 1.0

Exam Code: 300-100

Exam Name: LPIC-3 Exam 300: Mixed Environments, version 1.0

Updated: May 30, 2026

Q & A: 148 Questions and Answers

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Preparation Recourses

The main guarantee of your success in passing the 300-100 exam and obtaining the LPIC-3 certification is diligent preparation using credible materials. So, if you are used to studying independently, or you have enough time to prepare at your own pace, you can explore the resources available on third-party sites like Amazon.

Practical LPIC-3 300: Prepare for the Highest Level Professional Linux Certification by Antonio Vazquez (2019).
This book provides comprehensive and easy-to-understand preparation material for the LPI 300-100 exam. It helps candidates gain the knowledge, skills, and expertise required to clear the 300-100 test. Through this book, you can master your knowledge about how to install, handle, administer and troubleshoot Samba, Open LDAP alongside FreeIPA. Moreover, being written from the scratch in a simple language, this edition is also suitable for beginners who don't have extensive learning in these domains. For it, the syllabus consists of three detailed sections that cover all the topics required to successfully pass the official 300 exam, including directory security, PAM integration, Samba Architecture, and with it, deploying it as a stand-alone functional server, print services, back ends management, directory domain management as well as PDC. Thus, this book makes a great learning material even when you have less time to prepare for the LPI 300-100 exam.

Given that most of the 300 exam topics are related to Samba administration and configuration, candidates can use more narrowly focused materials, which will reveal all the intricacies of this field.

Using Samba: A File & Print Server for Linux, Unix & Mac OS X 3rd Edition by Gerald Carter, Jay Ts, Robert Eckstein
This is a complete study guide to the Samba configuration, which will serve as a valuable tool for the Samba administrator, whether a novice or an expert. Moreover, In preparation for the LPI 300-100 exam, this edition will help candidates cover many topics such as troubleshooting, OpenLDAP configuration, cross-platform authentication, print services, alongside Virtual File System usage, and working with Windows Clients. The authors, thanks to many years of experience, consider each topic from all sides, which helps to identify the strengths and weaknesses of each Samba function, which will be useful not only in the final test but also in everyday work to keep your organization's server running efficiently and securely. This learning tool is available to everyone in the Kindle format or as a paper version on Amazon.

However, it is important to understand that such an extensive exam program requires a comprehensive approach, so be responsible in choosing prep materials using only reliable sources.

Reference: https://www.lpi.org/our-certifications/exam-300-objectives

LPI 300-100 Exam Syllabus Topics:

Topic	Details
OpenLDAP Configuration
OpenLDAP Replication	Weight: 3 Description: Candidates should be familiar with the server replication available with OpenLDAP. Key Knowledge Areas: -Replication concepts -Configure OpenLDAP replication -Analyze replication log files -Understand replica hubs -LDAP referrals -LDAP sync replication The following is a partial list of the used files, terms and utilities: -master / slave server -multi-master replication -consumer -replica hub -one-shot mode -referral -syncrepl -pull-based / push-based synchronization -refreshOnly and refreshAndPersist -replog
Securing the Directory	Weight: 3 Description: Candidates should be able to configure encrypted access to the LDAP directory, and restrict access at the firewall level. Key Knowledge Areas: -Securing the directory with SSL and TLS -Firewall considerations -Unauthenticated access methods -User / password authentication methods -Maintanence of SASL user DB -Client / server certificates Terms and Utilities: -SSL / TLS -Security Strength Factors (SSF) -SASL -proxy authorization -StartTLS -iptables
OpenLDAP Server Performance Tuning	Weight: 2 Description: Candidates should be capable of measuring the performance of an LDAP server, and tuning configuration directives. Key Knowledge Areas: -Measure OpenLDAP performance -Tune software configuration to increase performance -Understand indexes Terms and Utilities: -index -DB_CONFIG
OpenLDAP as an Authentication Backend
LDAP Integration with PAM and NSS	Weight: 2 Description: Candidates should be able to configure PAM and NSS to retrieve information from an LDAP directory. Key Knowledge Areas: -Configure PAM to use LDAP for authentication -Configure NSS to retrieve information from LDAP -Configure PAM modules in various Unix environments Terms and Utilities: -PAM -NSS -/etc/pam.d/ -/etc/nsswitch.conf
Integrating LDAP with Active Directory and Kerberos	Weight: 2 Description: Candidates should be able to integrate LDAP with Active Directory Services. Key Knowledge Areas: -Kerberos integration with LDAP -Cross platform authentication -Single sign-on concepts -Integration and compatibility limitations between OpenLDAP and Active Directory Terms and Utilities: -Kerberos -Active Directory -single sign-on -DNS
Samba Basics
Samba Concepts and Architecture	Weight: 2 Description: Candidates should understand the essential concepts of Samba. As well, the major differences between Samba3 and Samba4 should be known. Key Knowledge Areas: -Understand the roles of the Samba daemons and components -Understand key issues regarding heterogeneous networks -Identify key TCP/UDP ports used with SMB/CIFS -Knowledge of Samba3 and Samba4 differences The following is a partial list of the used files, terms and utilities: -/etc/services -Samba daemons: smbd, nmbd, samba, winbindd
Configure Samba	Weight: 4 Description: Candidates should be able to configure the Samba daemons for a wide variety of purposes. Key Knowledge Areas: -Knowledge of Samba server configuration file structure -Knowledge of Samba variables and configuration parameters -Troubleshoot and debug configuration problems with Samba Terms and Utilities: -smb.conf -smb.conf parameters -smb.conf variables -testparm -secrets.tdb
Regular Samba Maintenance	Weight: 2 Description: Candidates should know about the various tools and utilities that are part of a Samba installation. Key Knowledge Areas: -Monitor and interact with running Samba daemons -Perform regular backups of Samba configuration and state data Terms and Utilities: -smbcontrol -smbstatus -tdbbackup
Troubleshooting Samba	Weight: 2 Description: Candidates should understand the structure of trivial database files and know how troubleshoot problems. Key Knowledge Areas: -Configure Samba logging -Backup TDB files -Restore TDB files -Identify TDB file corruption -Edit / list TDB file content Terms and Utilities: -/var/log/samba/ -log level -debuglevel -smbpasswd -pdbedit -secrets.tdb -tdbbackup -tdbdump -tdbrestore -tdbtool
Internationalization	Weight: 1 Description: Candidates should be able to work with internationalization character codes and code pages. Key Knowledge Areas: -Understand internationalization character codes and code pages -Understand the difference in the name space between Windows and Linux/Unix with respect to share, file and directory names in a non-English environment -Understand the difference in the name space between Windows and Linux/Unix with respect to user and group naming in a non-English environment -Understand the difference in the name space between Windows and Linux/Unix with respect to computer naming in a non-English environment Terms and Utilities: -internationalization -character codes -code pages -smb.conf -dos charset, display charset and unix charset
Samba Share Configuration
File Services	Weight: 4 Description: Candidates should be able to create and configure file shares in a mixed environment. Key Knowledge Areas: -Create and configure file sharing -Plan file service migration -Limit access to IPC$ -Create scripts for user and group handling of file shares -Samba share access configuration parameters Terms and Utilities: -smb.conf -[homes] -smbcquotas -smbsh -browseable, writeable, valid users, write list, read list, read only and guest ok -IPC$ -mount, smbmount
Linux File System and Share/Service Permissions	Weight: 3 Description: Candidates should understand file permissions on a Linux file system in a mixed environment. Key Knowledge Areas: -Knowledge of file / directory permission control -Understand how Samba interacts with Linux file system permissions and ACLs -Use Samba VFS to store Windows ACLs Terms and Utilities: -smb.conf -chmod, chown -create mask, directory mask, force create mode, force directory mode -smbcacls -getfacl, setfacl -vfs_acl_xattr, vfs_acl_tdb and vfs objects
Print Services	Weight: 2 Description: Candidates should be able to create and manage print shares in a mixed environment. Key Knowledge Areas: -Create and configure printer sharing -Configure integration between Samba and CUPS -Manage Windows print drivers and configure downloading of print drivers -Configure [print$] -Understand security concerns with printer sharing -Uploading printer drivers for Point’n’Print driver installation using ‘Add Print Driver Wizard’ in Windows Terms and Utilities: -smb.conf -[print$] -CUPS -cupsd.conf -/var/spool/samba/. -smbspool -rpcclient -net
Samba User and Group Management
Managing User Accounts and Groups	Weight: 4 Description: Candidates should be able to manage user and group accounts in a mixed environment. Key Knowledge Areas: -Manager user and group accounts -Understand user and group mapping -Knowledge of user account management tools -Use of the smbpasswd program -Force ownership of file and directory objects Terms and Utilities: -pdbedit -smb.conf -samba-tool user (with subcommands) -samba-tool group (with subcommands) -smbpasswd -/etc/passwd -/etc/group -force user, force group. -idmap
Authentication, Authorization and Winbind	Weight: 5 Description: Candidates should understand the various authentication mechanisms and configure access control. Candidates should be able to install and configure the Winbind service. Key Knowledge Areas: -Setup a local password database -Perform password synchronization -Knowledge of different passdb backends -Convert between Samba passdb backends -Integrate Samba with LDAP -Configure Winbind service -Configure PAM and NSS Terms and Utilities: -smb.conf -smbpasswd, tdbsam, ldapsam -passdb backend -libnss_winbind -libpam_winbind -libpam_smbpass -wbinfo -getent -SID and foreign SID -/etc/passwd -/etc/group
Samba Domain Integration
Samba as a PDC and BDC	Weight: 3 Description: Candidates should be able to setup and maintain primary and backup domain controllers. Candidates should be able to manage Windows/Linux client access to the NT-Style domains. Key Knowledge Areas: -Understand and configure domain membership and trust relationships -Create and maintain a primary domain controller with Samba3 and Samba4 -Create and maintain a backup domain controller with Samba3 and Samba4 -Add computers to an existing domain -Configure logon scripts -Configure roaming profiles -Configure system policies Terms and Utilities: -smb.conf -security mode -server role -domain logons -domain master -logon script -logon path -NTConfig.pol -net -profiles -add machine script -profile acls
Samba4 as an AD compatible Domain Controller	Weight: 3 Description: Candidates should be able to configure Samba 4 as an AD Domain Controller. Key Knowledge Areas: -Configure and test Samba 4 as an AD DC -Using smbclient to confirm AD operation -Understand how Samba integrates with AD services: DNS, Kerberos, NTP, LDAP Terms and Utilities: -smb.conf -server role -samba-tool domain (with subcommands) -samba
Configure Samba as a Domain Member Server	Weight: 3 Description: Candidates should be able to integrate Linux servers into an environment where Active Directory is present. Key Knowledge Areas: -Joining Samba to an existing NT4 domain -Joining Samba to an existing AD domain -Ability to obtain a TGT from a KDC Terms and Utilities: -smb.conf -server role -server security -net command -kinit, TGT and REALM
Samba Name Services
NetBIOS and WINS	Weight: 3 Description: Candidates should be familiar with NetBIOS/WINS concepts and understand network browsing. Key Knowledge Areas: -Understand WINS concepts -Understand NetBIOS concepts -Understand the role of a local master browser -Understand the role of a domain master browser -Understand the role of Samba as a WINS server -Understand name resolution -Configure Samba as a WINS server -Configure WINS replication -Understand NetBIOS browsing and browser elections -Understand NETBIOS name types Terms and Utilities: -smb.conf -nmblookup -smbclient -name resolve order -lmhosts -wins support, wins server, wins proxy, dns proxy -domain master, os level, preferred master
Active Directory Name Resolution	Weight: 2 Description: Candidates should be familiar with the internal DNS server with Samba4. Key Knowledge Areas: -Understand and manage DNS for Samba4 as an AD Domain Controller -DNS forwarding with the internal DNS server of Samba4 Terms and Utilities: -samba-tool dns (with subcommands) -smb.conf -dns forwarder -/etc/resolv.conf -dig, host
Working with Linux and Windows Clients
CIFS Integration	Weight: 3 Description: Candidates should be comfortable working with CIFS in a mixed environment. Key Knowledge Areas: -Understand SMB/CIFS concepts -Access and mount remote CIFS shares from a Linux client -Securely storing CIFS credentials -Understand features and benefits of CIFS -Understand permissions and file ownership of remote CIFS shares Terms and Utilities: -SMB/CIFS -mount, mount.cifs -smbclient -smbget -smbtar -smbtree -findsmb -smb.conf -smbcquotas -/etc/fstab
Working with Windows Clients	Weight: 2 Description: Candidates should be able to interact with remote Windows clients, and configure Windows workstations to access file and print services from Linux servers. Key Knowledge Areas: -Knowledge of Windows clients -Explore browse lists and SMB clients from Windows -Share file / print resources from Windows -Use of the smbclient program -Use of the Windows net utility Terms and Utilities: -Windows net command -smbclient -control panel -rdesktop -workgroup

LPI LPIC-3 Exam Certification Details:

Sample Questions	LPI LPIC-3 Sample Questions
Exam Code	300-100
Duration	90 mins
Exam Price	$200 (USD)
Number of Questions	60
Exam Name	LPIC-3 Mixed Environment
Schedule Exam	LPI Marketplace
Passing Score	500 / 800

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