Redhat Networking and Administration

Redhat Networking and Administration Course

• Network & its Planning, Designing & Working
• Linux History
• Role of the kernel
• sysctl command
• Installing RedHat GNU/Linux
• File System Management
• User Account Administration
• Further Topics in System Security 
• Installing/Updating and Removing Packages
• Installation and Configuration of Network Services
• Web Services, Apache and Squid
• Electronic Mail Services(E-Mail)
• Network File Sharing
• Secure Remote Access
• Print Service
• DHCP and DNS Servers
• Network Resource Access Controls
• Network Security
• X Window System
• Troubleshooting chroot, fault, rescue mode

Redhat Administration and Networking Course Description

Network & its Planning, Designing & Working
RedHat GNU/Linux Administration Topics

Linux History
- Linux Ideas and History
- An Introduction to Linux and Open Source
- Linux phenomenon and where do they come from

Essentials
- Overview of operating systems
- Role of the kernel
- Role of the shell
- The GNU Bash shell including shell scripting
- Editors (vim, nano)
- Common GNU/Linux commands e.g. ls, cp, cut, cat, sort, grep, sed, awk
- Regular expressions
- File permissions

The Linux Kernel
- Brief history of the origin of the kernel
- variants and modules (www.kernel.org)
- /proc filesystem
- udev device manager
- sysctl command

Installing RedHat GNU/Linux
- Supported hardware
- Hardware issues
- CD/DVD, NFS, FTP, HTTP based installs, kickstart
- Graphical/test based installs
- partitioning hard drives using parted/fdisk
- selecting filesystem type
- setting up LVM/RAID during install 
- post-install configuration
- System initialization (boot process, GRUB, init process, runlevel, initrd, controlling services)

File System Management
- review of filesystems concepts (inodes, blocks, linked lists)
- Creating filesystems
- mounting (one time and across reboots)
- autofs
- creating and managing swap space
- resizing filesystems
- further file access controls (acl, chattr, SUID, GUID)
- mounting network based filesystems (CIFS, NFS)

User Account Administration
- Creating user account
- Modifying user account including deleting user account
- Password administration
- Group administration
- Setting and managing disk quotas
- cron

Further Topics in System Security 
- The SELinux security layer
- Setting up a Firewall
- Using sudo utility
- Understanding PAM

Installing/Updating and Removing Packages
- RPM
- YUM
- RHN
- Creating a private YUM repository

Installation and Configuration of Network Services
- HTTP Service
- Apache web server
- Squid proxy server

Web Services
- Apache Overview 
- Apache Server Configuration 
- Virtual Hosts 
- Apache Access Configuration 
- CGI 
- Apache Encrypted Web Server 
- Squid Web Proxy Cache 

Electronic Mail Services(E-Mail)
- Email delivery concepts
- Sendmail/Postfix mail server
- Dovecot for IMAP/POP service
- Simple Mail Transport Protocol 
- Sendmail SMTP Restrictions 
- Sendmail Operation 
- Using alternatives to Switch MTAs 
- Postfix Configuration 
- Postfix SMTP Restrictions 
- Postfix Operation 
- Mail Retrieval Protocols

Network File Sharing
- Configuring NFS Server
- Configuration of Samba CIFS server
- Setting up FTP service

Secure Remote Access
- Configuring SSH daemon
- Connecting to SSH server remotely
- Using VNC securely
- Network Authentication
- LDAP, NIS

Print Service
- Configuring CUPS print service

DHCP and DNS Servers
- Configuring BIND server
- Configuring ISC DHCP server

Network Resource Access Controls
- Internet Protocol and Routing 
- IPv6: Dynamic Interface Configuration 
- IPv6: StaticInterface Configuration 
- IPv6: Routing Configuration 
- Rules: General Considerations 
- Connection Tracking 
- Network Address Translation (NAT)

Network Security
- Using TCP Wrappers
- Packet filtering using iptables and Netfilter

The X Window System
- Configuring the X Window system

Troubleshooting
- Understanding chroot environment
- Fault analysis method
- Using rescue mode to recover broken system