RHEL7 RHCSA Managing and Understanding the Boot Procedure

1 – Managing and Understanding the Boot Procedure
2 – Working with Systemd
3 – Understanding Systemd
4 – Unit Types in Systemd
5 – service ,socket ,target ,device ,mount ,automount ,snapshot ,timer ,swap ,path ,slice ,scope
6 – Understanding Service Units
7 – Vsftpd Unit File
8 – Mount Unit File
9 – Socket Unit
10- Available Options with systemctl show
11- Understanding Target Units
12- The Multi-user.target File
13- Understanding Wants
14- Managing Units Through Systemd
15- Managing Units with systemctl
16- Requesting Current Unit Status with systemctl status
17- Systemd Status Overview
18- Systemctl Unit Overview Commands
19- systemctl –type=service
20- systemctl list-units –type=service
21- systemctl list-units –type=service –all
22- systemctl –failed –type=service
23- systemctl status -l your.service
24- Managing Dependencies
25- Showing Unit Dependencies
26- systemctl list-dependencies
27- systemctl status
28- systemctl start
29- systemctl stop
30- Managing Systemd Targets
31- systemctl enable
32- systemctl disable
33- Isolating Targets
34- systemctl –type=target
35- systemctl –type=target –all
36- systemctl isolate rescue.target
37- Setting the Default Target
38- Working with GRUB 2
39- Understanding GRUB 2
40- Contents of the /etc/default/grub File
41- GRUB-CMDLINELINUX
42- /boot/grub2/grub.cfg
43- Modifying Default GRUB 2 Boot Options
44- GRUB_TIMEOUT
45- Applying Modifications to GRUB2
46- grub2-mkconfig

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james-redhat