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In this tutorial, We are going to see how to setup network on ubuntu 18.04 desktop and server versions. Ubuntu introduced netplan utlity to configure network on ubuntu 18.04 LTS. It uses YAML file format to read network configuration from /etc/netplan/ directory. Here is more information about netplan and Netplan examples .

These notes are intended to help users and system administrators maximize TCP/IP performance on their computer systems. They summarize all of the end-system (computer system) network tuning issues including a tutorial on TCP tuning, easy configuration checks for non-experts, and a repository of operating system specific instructions for getting the best possible network performance on these platforms

TELNET (TELetype NETwork) is a network protocol used on the Internet or local area network LAN connections.The telnetd program (telnet server) is a server which supports the DARPA telnet interactive communication protocol. Telnetd is normally invoked by the internet server inetd or xinetd for re

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what is verizon iphone ? verizon is new technology on iphone 4 G on CDMA network. quote from pcworld.com : Verizon-iPhone rumors last spring, the carrier's CEO told reporters Apple would not possible wish to bring the iPhone to the corporate till its 4G network was in place; the CDMA

NFS ( Network File System ) is used to share a directory with other clients over a network. It is very useful when it is implemented for accessing shared home folders

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Isn't Qubes just another Linux distribution after all? Well, if you really want to call it a distribution, then we're more of a "Xen distribution", rather then a Linux one. But Qubes is much more than just Xen packaging -- it has its own VM management infrastructure, with support for template VMs, centralized VM updating, etc, and also its very unique GUI virtualization infrastructure. What is the main concept behind Qubes? To build security on the "Security by Isolation" principle. Key architecture features:Based on a secure bare-metal hypervisor (Xen)Networking code sand-boxed in an unprivileged VM (using IOMMU/VT-d)No networking code in the privileged domain (dom0)All user applications run in "AppVMs", lightweight VMs based on LinuxCentralized updates of all AppVMs based on the same templateQubes GUI virtualization presents applications like if they were running locallyQubes GUI provides isolation between apps sharing the same desktopStorage drivers and backends sand-boxed in an unprivileged virtual machine(*)Secure system boot based on Intel TXT(*)

Sometimes you need to use powerful analyzer to detect network traffic. Cacti is a best choice for you....

Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

Reasons to change Mac address:

For privacy
To ensure interoperability.

 

Here is my solution:

ayon@ubuntu:~$ ifconfig -a | grep