Month: August 2010

iptables Linux

iptables stop people who make too many connections in a time period

Well it’s a simple deal but iptables can count the number of connections in a time period and block based on it.  For example:

Linux VMWare

Allow NFS to ESX

In order to use NFS with vmware you have to allow it through the ESX firewall… this can be done via the GUI or in the service console with this […]

General

How to find out more information on all scsi devices

Here another quick tip:  To find out all information on scsi devices linux see’s use this command: cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: […]

Linux Storage

How to find the model and manufacturer of your scsi devices

In linux this is an easy process to see everything type: For vendor

Linux Storage

Linux LVM

In the past I have wrote lots of different little blurbs on LVM but I have been using it a lot and needed to document all the processes.  I will […]

Linux Storage

Use dd to create an image of a partition

dd can be used to create an exact mountable block level copy of a partition to an alternate location dd if=/dev/sda1 of=/backup/sda1.img To mount it use mount -o loop /backup/sda1.img […]

Linux Storage

Create a Linux LVM on RHEL command line

Partition the disk –  fdisk /dev/sde Create the physical volume on the disk /dev/sde1 – pvcreate /dev/sde1 Create a volume group on the physical volume using a 4M chunk called […]

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