Linux Level 4 - Linux Network Administration Training Course

Rebuilding Packages

• The Red Hat Package Manager
• Why Create Your Own RPMs
• Building RPMs
• Packaging Open Source Software
• The Build Process
• Spec File
• Spec File: Preamble (Header) Section
• Spec File: %Prep Section
• Spec File: %build Section
• Spec File: %install Section
• Spec File: %clean Section
• Spec File: Scriptlets Section
• Spec File: %files Section
• Spec File: %changelog Section
• rpmbuild
• Signing RPM Packages - GnuPG
• Testing
• Custom RPM Guidelines

Kerberos

• Kerberos Principles
• Initial Kerberos Authentication
• Ticket Authentication
• Basic Realm Configuration
• Installing a Master Key Distribution Center
• DNS and Kerberos
• kdc.conf
• kadm5.acl
• kadmin
• Application Servers
• Kerberos Clients
• Troubleshooting Kerberized Services
• Kerberos Security
• Preauthentication
• Ticket Validation
• Trusting Other Realms
• Kerberos Encryption
• Kerberos Service Profile

Network Time Protocol

• What is NTP?
• NTP Design Structure
• Configuring a NTP Client
• Configuring a NTP Server
• Using NTP in an Enclosed Network
• Specifying Restrictions

Samba

• Samba Configuration
• Sharing Files and Directories with Samba
• Sharing Printers with Samba
• Verifying the Configuration File
• Samba accounts
• Starting Samba
• Using the smbclient command
• Mounting Samba Shares

Apache

• What is Apache?
• Configuring Apache
• The Main Tab
• The Virtual Hosts Tab
• Configuring Virtual Hosts
• Server Settings
• Performance Tuning
• Starting and Stopping the httpd Daemon
• Administering Squid

Email Services

• Mail Configuration
• Mail Protocols
• IMAP/POP3 Configuration
• Mail servers
• Mail User Agent Configuration
• Configuration of Sendmail
• Configuration of PostFix

DNS & BIND

• DNS Overview
• Introduction to BIND
• BIND's Primary Configuration File
• Zone Files
• Using rndc
• Using the GUI-based Tool

DHCP

• Introduction to DHCP
• Setup the DHCP Server
• Syntax of the /etc/dhcpd.conf File
• Global Settings
• Declaring a Subnet
• Shared Networks
• Using allow and deny
• Address Pools
• Additional Settings
• The /var/lib/dhcp/dhcpd.leases File
• Starting dhcpd
• Setting up a DHCP Client

FTP Services

• Setting up a VSFTP Server
• Setting up Anonymous Upload
• FTP Security
• Limiting Access to the VSFTP Server
• Modifying the Banner
• FTP Logging

Cryptography

• Symmetric Cryptography
• Asymmetric Cryptography
• Network Security
• Cryptographic Tools
• Using OpenSSL
• Cryptographic Hashes
• Using Asymmetric Encryption
• Key Distribution
• Digital Certificates
• Transport Layer Security
• TLS/SSL Handshake
• Creating a RSA Private Key
• Creating a Certificate Signing Request
• Establishing a Certificate Authority
• Managing Certificate Expiration
• Managing a Certificate Revocation List

Secure Shell

• Remote Access Weaknesses
• Overview of the Secure Shell
• Configuring the Secure Shell
• User or Group Level Access Control
• Using StrictModes
• Features and Functionality of SSH
• Authentication Methods
• Additional SSH Notes
• Using the Secure Shell Client Commands

Securing Services

• Sever vulnerabilities
• Securing portmap
• NFS Security
• BIND security
• X Window Server
• The /etc/services file
• Disabling unneeded services
• Kernel network parameters

NIS

• What is NIS?
• Configuring a NIS Server
• Setting up a NIS Client
• NIS Server Configuration
• Configuring NIS Slave Servers

LDAP

• What is LDAP?
• LDAP terms
• LDAP structure
• Setting up a LDAP server
• Migration tools
• Using the ldapsearch command
• Additional LDAP tools
• Additional LDAP configuration

SELinux

• What is SELinux?
• Setting SELinux Functionality during Installation
• Setting SELinux Functionality after Installation
• The RHEL SELinux policy

Appendix A - Preparing for Certification Exams

Appendix B - Preparing for RHCE and RHCT Exams

Appendix C - Preparing for the LPI Exams

Appendix D - Preparing for the Linux+ Exam