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RHCSA EX200 Solved 100- Correct 2024
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RHCSA EX200 Solved 100- Correct 2024
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RHCSA EX200 Solved 100% Correct 20241. cmd to install sealert.
2. Why is sealert helpful
3. Where is the sealert log directory - ANS-1. yum install setroubleshoot-server -y
2. sealert makes it easier to read SELinux messages
3. written to /var/log/messagesclear
1. what is the tar utility?
2. how would you create an archive?
3. how would you extract an archive?
4. how would you extract one file from an archive? - ANS-1. Utility used to create
archives
2. tar -cf [archivename.tar]
3. tar -xvf [archivename.tar]
4. tar-xvf [archivename.tar] [filename]
1. what tool(s) can you use to edit network connections?
2. where are the network connection files stored? - ANS-1. nmcli - cmd line tool, nmtui -
text interface tool
2. /etc/sysconfig/network-scripts
cmd to add 75% of all free disk space to the logical volume - ANS-lvresize -r -l
+75%FREE
cmd to add 75% of the total volume group size to the logical volume - ANS-lvresize -r -l
+75%VG (path to logical volume)
cmd to add a filesystem to a device - ANS-mkfs.(file system) (device)
mkfs -t (file system) (device)
cmd to apply context label "type" policy on a directory - ANS-semanage -a -t (context
type) "[directory](/.*)?"
cmd to change an SELinux boolean value permanently - ANS-setsebool (context type)
(on/off) -P
cmd to change attributes - ANS-chattr
cmd to change file ownership - ANS-chown
cmd to change users primary group - ANS-newgrp
cmd to discover files on the system - ANS-find
cmd to display information about kernel modules - ANS-modinfo
, cmd to download kernel - ANS-yumdownloader kernel (will download an rpm package)
cmd to get a list of SELinux booleans - ANS-semanage boolean -l
cmd to list attributes - ANS-lsattr
cmd to list currently loaded kernel module - ANS-lsmod
cmd to list kernel updates - ANS-yum list kernel
cmd to load kernel modules and all of their dependencies - ANS-modprobe
cmd to reduce logical volume by 100M - ANS-lvreduce -r -L -100M (path to logical
volume)
cmd to resize logical volume to 75% of free disk space - ANS-lvresize -r -l 75%FREE
cmd to resize volume group to 75% of its total disk space - ANS-lvresize -r -l 75%VG
(path to logical volume)
cmd to set group password - ANS-gpasswd
cmd to setup virtualization - ANS-yum groupinstall -y "Virtualization Host"
cmd to unload kernel modules, considers their dependencies - ANS-modprobe -r
cmd to write context label to file system - ANS-restorecon -R -v (directory)
command for modifying user properties - ANS-usermod
command to add users to the system - ANS-useradd
command to change user password expiry information - ANS-chage
command to copy the public key to the target server - ANS-ssh-copy-id
[username]@[ipaddress]
command to create groups - ANS-groupadd
command to get info about a user account - ANS-id [username]
command to modify groups - ANS-groupmod
command to remove users from the system - ANS-userdel
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