Enterprise Linux Network Services – LNX210 – 5 Days
This 5 day expansive course covers a wide range of network services useful to every organization. Special attention is paid to the concepts needed to implement these services securely, and to the trouble-shooting skills which will be necessary for real-world administration of these network services.
Enterprise Linux Network Services -LNX210 – 5 Days Request a Class Date
This 5 day Linux Network Services course includes a range of Linux networking topics such as security and trouble-shooting.
Course ID: LNX210 Duration: 5 days
Audience: Experienced Linux system administrators needing to set up or manage secure, enterprise-level network servers.
Prerequisites: Students should already be comfortable with basic Linux or UNIX administration, and have a good understanding of network concepts, the TCP/IP protocol suite is also assumed.
The course material is designed to provide extensive hands-on experience. Topics include: Security with SELinux and Netfilter, DNS concepts and implementation with Bind; LDAP concepts and implementation using OpenLDAP; Web services with Apache; FTP with vsftpd; caching, filtering proxies with Squid; SMB/CIFS (Windows networking) with Samba; and e-mail concepts and implementation with Postfix combined with either Dovecot or Cyrus.
Enterprise Linux Network Services Learning Objectives
- Configure network devices to communicate in networks
- Implement Internet and web hosting services
- Manage file services
- Learn LDAP concepts and clients
- How to use Apache
- Implement FTP and Squid servers
- Secure networks
- Troubleshoot system and network issues
Enterprise Linux Network Services Training Course Outline
- Xinetd
- Xinetd Connection Limiting and Access Control
- Xinetd: Resource limits, redirection, logging
- TCP Wrappers
- The /etc/hosts.allow & /etc/hosts.deny Files
- /etc/hosts.{allow,deny} Shortcuts
- Advanced TCP Wrappers
- Basic Firewall Activation
- Netfilter: Stateful Packet Filter Firewall
- Netfilter Concepts
- Using the iptables Command
- Netfilter Rule Syntax
- Targets
- Common match_specs
- Connection Tracking
- AppArmor
- SELinux Security Framework
- Choosing an SELinux Policy
- SELinux Commands
- SELinux Booleans
- Graphical SELinux Policy Tools
DNS Concepts
- Naming Services
- DNS – A Better Way
- The Domain Name Space
- Delegation and Zones
- Server Roles
- Resolving Names
- Resolving IP Addresses
- Basic BIND Administration
- Configuring the Resolver
- Testing Resolution
Configuring Bind
- BIND Configuration Files
- named.conf Syntax
- named.conf Options Block
- Creating a Site-Wide Cache
- rndc Key Configuration
- Zones In named.conf
- Zone Database File Syntax
- SOA – Start of Authority
- A & PTR – Address & Pointer Records
- NS – Name Server
- CNAME & MX – Alias & Mail Host
- Abbreviations and Gotchas
- $ORIGIN and $GENERATE
Securing Services
- Xinetd
- Xinetd Connection Limiting and Access Control
- Xinetd: Resource limits, redirection, logging
- TCP Wrappers
- The /etc/hosts.allow & /etc/hosts.deny Files
- /etc/hosts.{allow,deny} Shortcuts
- Advanced TCP Wrappers
- Basic Firewall Activation
- Netfilter: Stateful Packet Filter Firewall
- Netfilter Concepts
- Using the iptables Command
- Netfilter Rule Syntax
- Targets
- Common match_specs
- Connection Tracking
- AppArmor
- SELinux Security Framework
- Choosing an SELinux Policy
- SELinux Commands
- SELinux Booleans
- Graphical SELinux Policy Tools
DNS Concepts
- Naming Services
- DNS – A Better Way
- The Domain Name Space
- Delegation and Zones
- Server Roles
- Resolving Names
- Resolving IP Addresses
- Basic BIND Administration
- Configuring the Resolver
- Testing Resolution
Configuring Bind
- BIND Configuration Files
- named.conf Syntax
- named.conf Options Block
- Creating a Site-Wide Cache
- rndc Key Configuration
- Zones In named.conf
- Zone Database File Syntax
- SOA – Start of Authority
- A & PTR – Address & Pointer Records
- NS – Name Server
- CNAME & MX – Alias & Mail Host
- Abbreviations and Gotchas
- $ORIGIN and $GENERATE
Creating DNS Hierarchies
- Subdomains and Delegation
- Subdomains
- Delegating Zones
- in-addr.arpa. Delegation
- Issues with in-addr.arpa.
- RFC2317 & in-addr.arpa.
Advanced Bind DNS Features
- Address Match Lists & ACLs
- Split Namespace with Views
- Restricting Queries
- Restricting Zone Transfers
- Running BIND in a chroot jail
- Dynamic DNS Concepts
- Allowing Dynamic DNS Updates
- DDNS Administration with nsupdate
- Common Problems
- Securing DNS with TSIG
LDAP Concepts and Clients
- LDAP: History and Uses
- LDAP: Data Model Basics
- LDAP: Protocol Basics
- LDAP: Applications
- LDAP: Search Filters
- LDIF: LDAP Data Interchange Format
- OpenLDAP Client Tools
- Alternative LDAP Tools
OpenLDAP Servers
- Popular LDAP Server Implementations
- OpenLDAP: Server Architecture
- OpenLDAP: Backends
- OpenLDAP: Replication
- OpenLDAP: Configuration Options
- OpenLDAP: Configuration Sections
- OpenLDAP: Global Parameters
- OpenLDAP: Database Parameters
- OpenLDAP Server Tools
- Enabling LDAP-based Login
- System Security Services Daemon (SSSD)
- HTTP Operation
- Apache Architecture
- Dynamic Shared Objects
- Adding Modules to Apache
- Apache Configuration Files
- httpd.conf – Server Settings
- httpd.conf – Main Configuration
- HTTP Virtual Servers
- Virtual Hosting DNS Implications
- httpd.conf – VirtualHost Configuration
- Port and IP based Virtual Hosts
- Name-based Virtual Host
- Apache Logging
- Log Analysis
- The Webalizer
Apache Security
- Virtual Hosting Security Implications
- Delegating Administration
- Directory Protection
Directory Protection with AllowOverride - Common Uses for .htaccess
- Symmetric Encryption Algorithms
- Asymmetric Encryption Algorithms
- Digital Certificates
- SSL Using mod_ssl.so
Apache Server-Side Scripting Administration
- Dynamic HTTP Content
- PHP: Hypertext Preprocessor
- Developer Tools for PHP
- Installing PHP
- Configuring PHP
- Securing PHP
- Security Related php.ini Configuration
- Java Servlets and JSP
- Apache’s Tomcat
- Installing Java SDK
- Installing Tomcat Manually
- Using Tomcat with Apache
11. Implementing an FTP server
- The FTP Protocol
- Active Mode FTP
- Passive Mode FTP
- ProFTPD
- Pure-FTPd
- vsftpd
- Configuring vsftpd
- Anonymous FTP with vsftpd
The Squid Proxy Server
- Squid Overview
- Squid File Layout
- Squid Access Control Lists
- Applying Squid ACLs
- Tuning Squid & Configuring Cache Hierarchies
- Bandwidth Metering
- Monitoring Squid
- Proxy Client Configuration
Samba Concepts and Configuration
- Introducing Samba
- Samba Daemons
- NetBIOS and NetBEUI
- Accessing Windows/Samba Shares from Linux
- Samba Utilities
- Samba Configuration Files
- The smb.conf File
- Mapping Permissions and ACLs
- Mapping Linux Concepts
- Mapping Case Sensitivity
- Mapping Users
- Sharing Home Directories
- Sharing Printers
- Share Authentication
- Share-Level Access
- User-Level Access
- Samba Account Database
- User Share Restrictions
SMTP Theory
- SMTP
- SMTP Terminology
- SMTP Architecture
- SMTP Commands
- SMTP Extensions
- SMTP AUTH
- SMTP STARTTLS
- SMTP Session
POSTFIX
- Postfix Features
- Postfix Architecture
- Postfix Components
- Postfix Configuration
- master.cf
- main.cf
- Postfix Map Types
- Postfix Pattern Matching
- Advanced Postfix Options
- Virtual Domains
- Postfix Mail Filtering
- Configuration Commands
- Management Commands
- Postfix Logging
- Logfile Analysis
- chrooting Postfix
- Postfix, Relaying and SMTP AUTH
- SMTP AUTH Server and Relay Control
- SMTP AUTH Clients
- Postfix / TLS
- TLS Server Configuration
- Postfix Client Configuration for TLS
- Other TLS Clients
- Ensuring TLS Security
Mail Services and Retrieval
- Filtering Email
- Procmail
- SpamAssassin
- Bogofilter
- amavisd-new Mail Filtering
- Accessing Email
- The IMAP4 Protocol
- Dovecot POP3/IMAP Server
- Cyrus IMAP/POP3 Server
- Cyrus IMAP MTA Integration
- Cyrus Mailbox Administration
- Fetchmail
- SquirrelMail
- Mailing Lists
- GNU Mailman
- Mailman Configuration
Appendix A – Sendmail
- Sendmail Architecture
- Sendmail Components
- Sendmail Configuration
- Sendmail Remote Configuration
- Controlling Access
- Sendmail Mail Filter (milter)
- Configuring Sendmail SMTP AUTH
- Configuring SMTP STARTTLS
Appendix B – NIS
- NIS Overview
- NIS Limitations and Advantages
- NIS Client Configuration
- NIS Server Configuration
- NIS Troubleshooting Aids
