Configure the verification mode of your host account and the password as LDAP. And it can login
successfully through ldapuser40. The password is set as "password". And the certificate can be
downloaded from
http://ip/dir/ldap.crt
. After the user logs on the user has no host directory unless
you configure the autofs in the following questions.
see
explanation below.
Explanation:
system-config-authentication
LDAP Server: ldap//instructor.example.com (In domain form, not write IP)
OR
# yum groupinstall directory-client (1.krb5-workstation 2.pam-krb5 3.sssd)
# system-config-authentication
1.User Account Database: LDAP
2.LDAP Search Base DN: dc=example,dc=com
3.LDAP Server: ldap://instructor.example.com (In domain form, not write IP) 4.Download CA
Certificate
5.Authentication Method: LDAP password
6.Apply
getent passwd ldapuser40
Configure autofs to make sure after login successfully, it has the home directory autofs, which is
shared as /rhome/ldapuser40 at the ip: 172.24.40.10. and it also requires that, other ldap users can
use the home directory normally.
see
explanation below.
Explanation:
# chkconfig autofs on
# cd /etc/
# vim /etc/auto.master
/rhome /etc/auto.ldap
# cp auto.misc auto.ldap
# vim auto.ladp
ldapuser40 -rw,soft,intr 172.24.40.10:/rhome/ldapuser40
* -rw,soft,intr 172.16.40.10:/rhome/&
# service autofs stop
# server autofs start
# showmount -e 172.24.40.10
# su - ladpuser40
Configure the system synchronous as 172.24.40.10.
see
explanation below.
Explanation:
Graphical Interfaces:
System-->Administration-->Date & Time
OR
# system-config-date
Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range
should set between 280 and 320. (This logical volume has been mounted in advance.)
see
explanation below.
Explanation:
# vgdisplay
(Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend)
# lvdisplay (Check lv)
# lvextend -L +110M /dev/vg2/lv2
# resize2fs /dev/vg2/lv2
mount -a
(Verify)
-------------------------------------------------------------------------------
(Decrease lvm)
# umount /media
# fsck -f /dev/vg2/lv2
# resize2fs -f /dev/vg2/lv2 100M
# lvreduce -L 100M /dev/vg2/lv2
# mount -a
# lvdisplay (Verify)
OR
# e2fsck -f /dev/vg1/lvm02
# resize2fs -f /dev/vg1/lvm02
# mount /dev/vg1/lvm01 /mnt
# lvreduce -L 1G -n /dev/vg1/lvm02
# lvdisplay (Verify)
Create a volume group, and set 16M as a extends. And divided a volume group containing 50 extends
on volume group lv, make it as ext4 file system, and mounted automatically under /mnt/data.
see
explanation below.
Explanation:
# pvcreate /dev/sda7 /dev/sda8
# vgcreate -s 16M vg1 /dev/sda7 /dev/sda8
# lvcreate -l 50 -n lvm02
# mkfs.ext4 /dev/vg1/lvm02
# blkid /dev/vg1/lv1
# vim /etc/fstab
# mkdir -p /mnt/data
UUID=xxxxxxxx /mnt/data ext4 defaults 0 0
# vim /etc/fstab
# mount -a
# mount
(Verify)
Upgrading the kernel as 2.6.36.7.1, and configure the system to Start the default kernel, keep the old
kernel available.
see
explanation below.
Explanation:
# cat /etc/grub.conf
# cd /boot
# lftp it
# get dr/dom/kernel-xxxx.rpm
# rpm -ivh kernel-xxxx.rpm
# vim /etc/grub.conf
default=0
Create a 512M partition, make it as ext4 file system, mounted automatically under /mnt/data and
which take effect automatically at boot-start.
see
explanation below.
Explanation:
# fdisk /dev/vda
n
+512M
w
# partprobe /dev/vda
# mkfs -t ext4 /dev/vda5
# mkdir -p /data
# vim /etc/fstab
/dev/vda5 /data ext4 defaults 0 0
# mount -a
Create a volume group, and set 8M as a extends. Divided a volume group containing 50 extends on
volume group lv (lvshare), make it as ext4 file system, and mounted automatically under /mnt/dat
a. And the size of the floating range should set between 380M and 400M.
see
explanation below.
Explanation:
# fdisk
# partprobe
# pvcreate /dev/vda6
# vgcreate -s 8M vg1 /dev/vda6 -s
# lvcreate -n lvshare -l 50 vg1 -l
# mkfs.ext4 /dev/vg1/lvshare
# mkdir -p /mnt/data
# vim /etc/fstab
/dev/vg1/lvshare /mnt/data ext4 defaults 0 0
# mount -a
# df -h
Download
ftp://192.168.0.254/pub/boot.iso
to /root, and mounted automatically under
/media/cdrom and which take effect automatically at boot-start.
see
explanation below.
Explanation:
# cd /root; wget
ftp://192.168.0.254/pub/boot.iso
# mkdir -p /media/cdrom
# vim /etc/fstab
/root/boot.iso /media/cdrom iso9660 defaults,loop 0 0
# mount -a
mount [-t vfstype] [-o options] device dir
Add admin group and set gid=600
see
explanation below.
Explanation:
# groupadd -g 600 admin