Need your help to answer some questions
 

Hi All,

On my way to prepare to RHCSA exam I found the below question:

***** Reduce /home LVM partition to be 800 M without losing data.

I already can use this command

lvresize -L 800MB /home

But it should destroy its contents,I don’t know how to reduce an LVM without losing its contents!

[root@Client01 ~]# lvresize -L 800MB /dev/VG01/LV01
WARNING: Reducing active and open logical volume to 800.00 MiB
THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce LV01? [y/n]: y
Reducing logical volume LV01 to 800.00 MiB
Logical volume LV01 successfully resized





need your advise.

you'd use a tool like resize2fs to shrink the filesystem first.

Please use more insightful thread titles in future, we already know you're here for help. thanks.

Thanks Cris for your kind help and gentle guidance :)

Can I have more additional question?

Create the nonlogin shell users test1,test2 and test3 with the same
password. make sure that test2 can issue any of root commands.

1. How can I create nonlogin shell users? does this means set the shell to be /sbin/nolgin ?
2. to make him issue any of the root commands just to put as root is his secondary group ?

1. yes
2. no, wheel

Then how can I make regular user issue root command?

well, you could make their gid 0, but that's a bit rubbish a thing to do. Is this really a genuine test question? You'd not be asked to achieve that in an exam I'm sure.

one more question please :)

#- Create volume group and logical volume with size 100 extent (extent = 4 Mega) that mean you will create a partition 400 M

it it mean by the 4mega the PE?
how can I set it?

check the manpage for vgcreate

Thanks Chris, I got it.

Dears,


could be please provide the shortest steps to accomplish the below tasks:

1. Start “HTTPD” service and make sure when you browse “http://yourdomain/index.html” you will say “hi”
2. Start VSFTPD and make sure that “anonymous” users can login

yum install httpd*

service httpd restart -Restart Apache server

Place index.html in Apache Document root & you can access it

yum install vsftpd*

service vsftpd restart -Restart vsftpd server

Making Anonymous user login in vsftpd is security risk .Dont do it .

Try
chroot_local_user=yes in vsftpd.conf lock the user to there home directory

Can we tone down the spoon feeding a bit? This is clearly homework.

indeed both are not practical tasks but they are two assignment given to simulate RHCSA exam tasks

so, in question 1 >> i need also to my make sure when you browse “http://yourdomain/index.html” you will say “hi”

and in question 2 i need to make sure that “anonymous” users can login



thanks for your help in advance.

these tasks are very straight forward, and you can find out ways to achieve them by searching around a bit, and that way you'll learn a hell of a lot more.

Dear Chris,

Thanks for you and I'm sorry for putting such questions in your valuable forums i will search again and try to learn this is really the best way as you advised :)

Hi all,

editing the file /etc/fstab made two virtual machine not to come up again can you please advise about the precautions i must take care when i edit this file...

Please don't keep adding new questions that are not obviously related to the content of the thread (make a new thead for a new question) Before posting your new thread, read up on fstab using the man page or some online tutorial (search Google using "Linux fstab")

Dears,

to locate the files of owner "dax" and copy to the directory /root/found directory

I know that i should use find then exec

Find / -user dax –exec cp –rfp {} /root/found\

but the above command don't give me an accurate answer so what is wrong with it?

Define 'don't give me an accurate answer' ...
If you're going to keep asking these qns, provide details...