Introduction With LVM, we can create logical partitions that can span across one or more physical hard drives. First, the hard drives are divided into physical volumes, then those physical volumes are combined together to create the volume group and finally the logical volumes are created from volume group.Before we start, install the lvm2 package. …

1. Display contents of file in octal format using -b option The following is the input file used for this example: $ cat input Now execute od command on this input file: $ od -b input So we see that output was produced in octal format. The first column in the output of od represents …

Introduction ngrep strives to provide most of GNU grep‘s common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw across Ethernet, PPP, SLIP, FDDI, …