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Old 11-13-2012, 07:31 AM   #1
WFR65
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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 donít 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.
 
Old 11-13-2012, 07:41 AM   #2
acid_kewpie
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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.
 
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Old 11-13-2012, 07:44 AM   #3
WFR65
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Thanks Cris for your kind help and gentle guidance
 
Old 11-13-2012, 07:49 AM   #4
WFR65
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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 ?
 
Old 11-13-2012, 08:15 AM   #5
acid_kewpie
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1. yes
2. no, wheel
 
Old 11-13-2012, 08:19 AM   #6
WFR65
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Then how can I make regular user issue root command?
 
Old 11-13-2012, 08:32 AM   #7
acid_kewpie
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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.
 
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Old 11-13-2012, 08:52 AM   #8
WFR65
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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?
 
Old 11-13-2012, 10:44 AM   #9
acid_kewpie
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check the manpage for vgcreate
 
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Old 11-14-2012, 01:51 AM   #10
WFR65
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Thanks Chris, I got it.
 
Old 11-21-2012, 02:54 AM   #11
WFR65
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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
 
Old 11-21-2012, 03:01 AM   #12
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Quote:
1. Start “HTTPD” service and make sure when you browse “http://yourdomain/index.html” you will say “hi”
yum install httpd*

service httpd restart -Restart Apache server

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

Quote:
2. Start VSFTPD and make sure that “anonymous” users can login
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

Last edited by arun5002; 11-21-2012 at 03:03 AM.
 
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Old 11-21-2012, 03:03 AM   #13
acid_kewpie
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Quote:
Originally Posted by arun5002 View Post
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.
 
Old 11-21-2012, 03:13 AM   #14
WFR65
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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.
 
Old 11-21-2012, 03:15 AM   #15
acid_kewpie
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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.
 
  


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