RHCS in Linux Diagnostics and Troubleshooting exam

Disclaimer:These are my notes following my self-study on troubleshooting . No material comes from either Red Hat course or the Red Hat exam. You will not find any NDA information here. All contents are my own thoughts/understanding on the subject matter.

Gather information to aid third party investigation of issues Create kernel crashdumps Compile and execute SystemTap modulesGenerally speaking to compile a stap module there are different examples on the web you can download to test. stap -v stapexample.stp Generate sos reportsAccording to the

Disclaimer:These are my notes following my self-study on troubleshooting . No material comes from either Red Hat course or the Red Hat exam. You will not find any NDA information here. All contents are my own thoughts/understanding on the subject matter.

According to the exam objectives you will need to be able to identify issues with storage and fix them. The following are the objectives of this section  : Diagnose and troubleshoot file system issues Recover corrupted file systemsWe will be testing this on our virtual

Disclaimer:These are my notes following my self-study on troubleshooting . No material comes from either Red Hat course or the Red Hat exam. You will not find any NDA information here. All contents are my own thoughts/understanding on the subject matter.

Identify and resolve service failures affecting bootto find service dependencies you can view the service systemd file at /etc/systemd/system/ check the configs file systemctl status -l vsftpd 2. check all configurations related to a service 3. List dependencies sysemctl list-dependencies rsyslog Regain

Disclaimer:These are my notes following my self-study on troubleshooting . No material comes from either Red Hat course or the Red Hat exam. You will not find any NDA information here. All contents are my own thoughts/understanding on the subject matter. Red Hat