1. RHCSA
Study Prep

2. Study Tips
Take a snapshot of your virtual machine before attempting anything
Use your book!!! All of the answers are in your text book.
Use the index to look things up
When in doubt, google it!

3. Reset the Root Password
reset the root password, via grub (see class notes)

4. Change Target (run-level)
Change back and forth between runlevels or targets (i.e. graphical vs non-graphical) see class notes
default-runlevel-in-centos-7-rhel-7.html

5. Networking
Another important linux command that also does what the “ip command” can do is ”nmcli” i.e. network manager command line interface
Config an autoconnected static ip4 with gw4 using nmcli
Use nmcli to modify ethX (a network interface) with ip4.dns & ip4.dns- search
Great website
set machine hostname with hostnamectl
Use linux command “wget host.X.server.com” or use browser over http to get exam questions.

6. SELinux
Know how to turn selinux on and off temporarily and permanently with reboots

7. RPMs and Local repo
We did not cover this in class but there should be a link in the notes
Know how-to Config local repo, kernel repo to update kernel

8. Users Know commands to create user
Try the the linux command "setfacl" refers to Set File Access Control Lists and "getfacl" refers to Get File Access Control List. Each file and directory in a Linux filesystem is created with a specific set of file permissions for its access. ... The permissions can be set using the setfacl utility.
Command In book
Know Chgrp
Know Chmod

9. Installing Programs Know YUM
Know how to install webserver and ftpserver
Know to basic configure them

10. Cron jobs
Use crontab to create a cron job for a user that runs at different intervals

11. Chaining linux commands together
find /w exec, grep, pipe, sort, redirect “>”
We’ve done these through out course. Some examples in slides, many are on the web

12. LDAP, NIS *we did not cover
Network authentication
Know authconfig-gtk - linux command provides a simple graphical user interface for configuring user identity and system authentication services. It provides basic configuration options to handle NIS, LDAP, Kerberos 5, and Winbind client configuration.
Sharing system files Chapt 19 of book

13. Adding and modifying storage
Add & Modify Physical Partitions & LVMs using logical and physical extents - partprobe, pvcreate,vgcreate,lvcreate,mkfs,fstab and mount. 
Reduce & Extend LVMs - umount, e2fsck, resizefs, lvreduce, mount
Book and class notes have this
Ton of examples on line

14. Create a zip file and tar file
Know the tar command
Examples in book and in slides

15. Mount an ISO file
linux.html

16. CP (copy) and LN (links)
Know how to copy and rename files
Know how to create hard and soft (symbolic) links
Many examples online and in class notes

17. Using FDISK Make sure to take a snapshot before attempting!!!!
Know how to do the following:
fdisk a swap,
mkswap
Swapon
add the swap in fstab

18. NFS *we did not cover
Know how to: Share a directory using nfs - /etc/exports
We did not cover this due to time but its in the book and this link is a good tutorial on how to set up NFS to share a directory

19. Log files
Know how to access and view log files

20. Installing servers
Install httpd, add ServerName to httpd.conf, hit index.html on port 80 in firefox