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What is LVM and how to create it on Cent Os?

Logical Volume Management

Logical Volume Management

LVM is a tool for logical volume management which includes allocating disks, striping, mirroring and resizing logical volumes. With LVM, a hard drive or set of hard drives is allocated to one or more physical volumes.

The physical volumes are combined into logical volumes, with the exception of the /boot/ partition.

The /boot/partition cannot be on a logical volume group because the boot loader cannot read it.

If the root (/) partition is on a logical volume, create a separate /boot/ partition which is not a part of a volume group.

Since a physical volume cannot span over multiple drives, to span over more than one drive, create one or more physical volumes per drive.

Centos

The volume groups can be divided into logical volumes, which are assigned mount points. When “partitions” reach their full capacity, free space from the volume group can be added to the logical volume to increase the size of the partition. When a new hard drive is added to the system, it can be added to the volume group, and partitions that are logical volumes can be increased in size.

If a system is partitioned with the ext3 file system, the hard drive is divided into partitions of defined sizes. If a partition becomes full, it is not easy to expand the size of the partition. Even if the partition is moved to another hard drive, the original hard drive space has to be reallocated as a different partition or not used.

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How to activate and use softaculous on centOs Web Panel?

CentOS Web Panel:

CentOS web panel is a hosting control panel which is used t0 host  websites. We can access multiple services like MySql, Apache, Rouncube webmail panel,Bind etc. It is very easy to use and  has no license.

Now we learn how to activate softaculous on centOS web panel. There are some step to activate it which are as follows:

Step 1: Login into your centos web panel.
https://x.x.x.x:2030

CentOS-WebPanel

Step 2: Please see there is script installer option in centOS web panel. Go to script installer> Script Manager.

To know more visit Ideastack.

Last Edited: 06/05/2020

How to install virtualmin on Centos?

VirtualMin:
Virtual min is the control panel which is used to manage the virtual hosts. It provides many services like BIND DNS , Mysql, Apache etc.It provide webbase interface. using that user can access from anywhere in the world.

Step 1: First update the Centos System.
# yum update -y

Step 2: Check hostname
# hostname -f

Step 3: Set proper hostname.
# hostname server.scalebuzz.com

Step 4: Download virtualmin package by using below mentioned link.
#wget https://software.virtualmin.com/gpl/scripts/install.sh

Step 5: Now install the virtualmin by using below mentioned command.
# ./install.sh

Step 6: By default it use port number 10000
after installing go to your web browser url and type
https://Your_server_IP:10000
webmin

To know more visit Ideastack.

Last Edited: 06/05/2020