Red Hat Certified Engineer Prep Course

Learn to use firewalld for packet filtering with zones and rich rules, configuring permanent settings, enabling http service, and testing access across zones and network address translation scenarios using firewall-cmd.

Configure firewallD with rich rules, zones, and custom rules to perform packet filtering, log connections, and implement ip v4 based nat and port forwarding for targeted clients.

Configure a Red Hat system to authenticate with Kerberos using a KDC server, including tickets, TGTs, and realm settings across a three-server lab.

Configure a system to authenticate using Kerberos by setting up a Kerberos client, editing the krb5 configuration, creating principals and keytabs, and validating SSH access to the KDE server.

Learn to produce reports on system utilization using D stat and the system stat tools, capturing processor, memory, disk, and network metrics in real time and CSV formats.

Install Apache httpd with yum, verify status, and set it to start on boot with systemctl, while learning enable, disable, mask, and unmask for persistence.

Install and configure the Apache httpd web server on Red Hat, enable ports 80 and 443, start the service, and test the default site with e links.

Set up and secure NFS exports for specific clients by installing NFS utilities, configuring SELinux booleans, adjusting the firewall, and exporting read-write and read-only directories.

Learn to set up an nfs share for group collaboration by creating a group-owned directory, enabling the setgid bit, and exporting it with read-write permissions on both server and client.

Install samba server and client, create a network share directory, set samba file contexts, configure shares in smb.conf, and test access with a samba user.

Configure key-based authentication in ssh by generating RSA keys, copying the public key to the server, and disabling password logins to secure client-server access; manage keys, authorized_keys, and passphrases.

Configure a second ntp peer by peering with the first ntp server, install and configure ntpd, adjust firewall rules, and verify synchronization with ntpq -p and ntpstat.