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hariktny last won the day on July 14 2013

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  1. hariktny

    RHEL 8 is out

    Wait for sometime before attempting the new exam. Let the chaos settle down. As of now, the instructors of various Red Hat partners are going through the training process. So, just hold off for a couple of months before attempting the exams.
  2. 10 years is a long time. A lot has changed. 2 major releases got though - RHEL 6 & 7. Now this month they released RHEL 8 to the general public.
  3. LFCS or RHCE - both will do. But, you will have to be very thorough with stuff like firewalld, network stuff etc. But first identify whether you want to go with application based, network based, os based or any other domain of security. Each require specialized skills.
  4. hariktny


    By default, the system will boot to cli mode. So, if you need to consistently boot into gui, just issue this following command - # systemctl set-default graphical.target Followed by a reboot. You can verify with this command - # ls -l /etc/systemd/system/default.target
  5. I am no expert on linux so I cannot comment on the Sander van Vught erroneous book. I felt that was good enough. But there are other good resources as well. Like the book from Mark G Sobell. It is extremely comprehensive. Both beginners and experienced pros can benefit from that sort of a book.
  6. Also to clarify, multi-node architecture is not presented in the exam. Packstack installation is more than enough.
  7. Just wait before you sign up or buy any books. Let me search the share section for the materials. I will update this post with the links.
  8. Extensive online documentation is available for both Ubuntu and CentOS. But I have not seen any implementation of Kerberos, LDAP, or IPA on Ubuntu. So, cannot comment on that. On the other hand a few companies have implemented these things on CentOS. The steps are the same as that in Red Hat, so you can refer to the official Red Hat documentation as well. However, since you are implementing critical & complicated services on freely available OS, you should have people who are technically adept in tackling issues. This will be vital as you will not have the option to take support from Red Hat when something major goes wrong.
  9. For Openstack, the book provided by Red Hat is good enough. The labs are extensively covered. But, then the exam is a little bit different. You need to know how to configure Openstack using packstack. They do not expect you to integrate with Storage backend in the exam.
  10. Linux Academy is a very good resource. I feel the best way to go forward is by having a combination approach. Download the VM provided by Livelessons (Sander van Vught). And on that VM practice all the concepts by referring to the books by a) Mark G Sobell, Sander van Vuhgt, c) Michael Jang. This will give you a solid base for pushing forward in the CoE courses later on. Apart from the above resources, you can also look at LinuxCBT, ITPro, GoGo, Gurulabs. All are good resources. And all these are available here on the forum. Also, the books from Red Hat for RHCSA and RHCE v7 have very good systematic lab structure. For the hands on lab you can refer to these books as well.
  11. Why do you want to issue these commands? None are needed. By the way, what will you do with a sosreport??? This is not enterprise scale support going on. Also, RHN connectivity needs to be there for this to work. That is not possible in the exam. I am also not sure why you want to create the locate and makewhatis db. Yes, if you have trouble remembering commands or location of configuration files, then fine. Otherwise it is not needed. Do not over-complicate things. Keep it simple. Do not get confused, and also please do not get others confused.
  12. 1) For the samba share - Specifying the IP is good enough. However, I have no idea why the domain will not work unless and until someone messes with both apache and firewall rules at the same time. That domain thing works out of the box. 2) SSH - Just configure whatever is asked. If they ask you to block domain1, then apply iptables to block domain1 and allow all others. If they ask you to allow domain2, do the same. If you are asked to allow both, configure iptables to allow both. If you are asked to deny both, then block both domains from iptables. Do not memorize answers from here and try to clear the exam. It is of no use. 3) iSCSI - What will you do by staying logged in to the storage block? After configuration is complete, mount and test it. Thats it. Whether you log-out or not is not going to make any difference because your system will be rebooted before auto-grading. I hope all doubts which you mentioned here are clear.
  13. For job and enterprise deployment, only one choice - Red Hat.
  14. Once again firewall problems. No need to flush iptables. Or, if you feel that you want to flush it, just go ahead. It makes no difference. Secondly, you do not memorize iptables chain commands. You apply logic. You create a rule, verify it, save the rule, restart the iptables service. Before grading systems are automatically restarted. So, every configuration change has to survive a server reboot.
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