Cert Prep: Red Hat Certified System Engineer (EX300)

Introduction

• Prepare for the RHCE EX300
• What you should know
• The state of Enterprise Linux

1. Virtual Systems Configuration

• Lab setup introduction
• Install interactively in a guest VM
• Installing from a DVD ISO Image
• Update system software
• Install Linux Guest Additions
• Virtual machine snapshots
• Reconfigure or migrate CentOS

2. System Configuration

• System configuration introduction
• Gather statistics from the system
• Generate reports on system utilization
• Use shell scripting to automate tasks

3. iSCSI Target Configuration

• iSCSI target introduction
• Install and configure packages
• Create an iSCSI backstore
• Create iSCSI target
• Create an iSCSI LUN
• Create access control
• Configure firewalld
• Create an iSCSI initiator
• Mount target automatically
• Challenge: iSCSI target and initiator
• Solution: iSCSI target and initiator

4. NTP Services

• NTP services introduction
• Install and configure NTP services
• Configure the chrony server
• Configure the chrony client
• Configure time and date

5. Authentication Services

• Authentication services introduction
• Install and prepare LDAP server
• Configure LDAP server
• Set up an LDAP database
• Create an LDAP user
• Finish the LDAP server configuration
• Install and configure LDAP client
• Install and configure Kerberos server packages
• Create a Kerberos database
• Configure Kerberos client authentication

6. Network Services

• Network services introduction
• Consistent network device naming
• Gather network information
• Configure IP and subnet mask
• Configure interface bonding using nmcli
• Configure interface teaming using nmcli
• Configure IPv6 and perform basic troubleshooting
• Use firewalld for packet filtering
• Use firewalld zones
• Use firewalld for NAT
• Use firewalld rich rules
• Route IP traffic and create static routes
• Challenge: Network services
• Solution: Network services

7. Database Services

• Database services introduction
• Install and configure MariaDB
• Manage SELinux for database services
• Perform logical database backups
• Create a database with tables
• Restore logical database backups
• Perform simple SQL queries
• Perform logical database backups
• Restore logical database backups
• Recover the MariaDB root password
• Set the root database password

8. DNS Services

• DNS services introduction
• Installing DNS packages
• About the BIND configuration file
• About BIND zone files
• Configure a caching-only name server
• Troubleshoot DNS client issues
• Use dig to resolve DNS records

9. Web Services

• Web services introduction
• Install and configure Apache
• Manage SELinux for web services
• Configure a basic Apache web server
• Configure access control on directories
• Configure private access using basic auth
• Configure group-managed content
• Configure a virtual host
• Configure a virtual host on a nonstandard port
• Configure a secure virtual host
• Deploy a basic CGI application
• Generating key pairs and self-signed certificates
• Challenge: Web services private site
• Solution: Web services private site
• Deploy a basic CGI application

10. NFS Services

• NFS services introduction
• Install NFS and configure NFS services
• Manage SELinux for NFS services
• Provide network shares to specific clients
• Mount a simple NFS share
• Create an NFS share for group collaboration
• Mount an NFS share for group collaboration
• Challenge: NFS share for group collaboration
• Solution: NFS share for group collaboration

11. SMB Services

• smb services introduction
• Install and configure Samba services
• Manage SELinux for SMB services
• Samba global configuration options
• Samba share configuration definitions
• Create a simple public share
• Provide network shares to specific clients
• Automount using a credentials file
• Provide network shares suitable for group collaboration
• Mount a share for group collaboration
• Challenge: SMB share for group collaboration
• Solution: SMB share for group server
• Solution: SMB share for group client

12. SMTP Services

• SMTP services introduction
• Install and configure mail services
• Manage SELinux for SMTP services
• Configure a local mail server
• Create a null-client mail relay
• Create a mail gateway

13. SSH Services

• SSH services introduction
• Install SSH additional packages
• SSH client configuration
• SSH server configuration
• SSH per user client configuration
• Configure key-based authentication
• Configure host- and user-based security

Conclusion

• Taking the exam