Monthly Archives: August 2015

RHCE iSCSI

RHCE Objectives: Configure a system as either an iSCSI target or initiator that persistently mounts an iSCSI target http://www.certdepot.net/rhel7-configure-iscsi-target-initiator-persistently/ Actually this page is pretty clear. I followed it and it worked just fine. Create the image drives for use by … Continue reading

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RHCE Kerberos

RHCE Objectives: Configure a system to authenticate using Kerberos * yum install krb5-workstation pam_krb5 *

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RHCE sysctl and kernel

RHCE Objectives: Use /proc/sys and sysctl to modify and set kernel runtime parameters. This is all pretty normal work. In RH6 you’d manually edit the /etc/sysctl.conf file to make changes and run sysctl -p to reload the changes or reboot … Continue reading

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RHCE Use firewalld

RHCE Objective: Use firewalld and associated mechanisms such as rich rules, zones, and custom rules, to implement packet filtering and configure network address translation (NAT). http://www.certdepot.net/rhel7-get-started-firewalld/ This is clearly necessary to pass the exam so we’ll just have to dig … Continue reading

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RHCE Route IP Traffic

RHCE Objective: Route IP traffic and create static routes In most cases, you’ll use routing when you have a multi-homed system. A server with an interface on one network and one or more interfaces on a different network. You’d do … Continue reading

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RHCE Configure IPv6

RHCE Objectives: Configure IPv6 addresses and perform basic IPv6 troubleshooting. Configuring IPv6 on Red Hat 7 is very similar to configuration on Red Hat 6. Files are located in: /etc/sysconfig/network and /etc/sysconfig/network-scripts/ifcfg-interface The definition for IPv6 specific settings are located … Continue reading

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RHCE Network Teaming/Bonding

RHCE Objective: Use network teaming or bonding to configure aggregated network links between two Red Hat Enterprise Linux systems. http://rhelblog.redhat.com/2014/06/23/team-driver/ https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/ch-Configure_Network_Teaming.html Teaming and Bonding are the same as far as technical discussions at this level are concerned. Bonding is kernel … Continue reading

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