Tagged: network

configuring ip address

Configure IP address (Networking) in RHEL/CentOS 7

First thing that we do after installing an operating system is to configure the IP address i.e. networking on the machine. Whether we want to connect to internet or only to our local area...

Network bonding

Networking Bonding in RHEL/CentOS 7: Combining multiple NICs into one

When hosting a successful & busy websites or operating a critical server, high availability & redundancy are major factors to consider. To achieve high availability & redundancy, backup of the server & server clusters...

router

Turning a CentOS/RHEL 6 or 7 machine into a router

In this tutorial we are going to learn to convert RHEL/CentOS 6 & 7 machines into a router by using NATting. Router as we know is layer 3 networking device that is used to...

install wireshark

How to install WireShark on Linux (CentOS/Ubuntu)

In our previous tutorial, we have learned about using tcpdump command to collect network packets for analysing/troubleshooting. But it can be a tiresome task to analyse all these network logs via CLI. But that’s...

tcpdump command

Learn how to use tcpdump command with examples

Tcpdump command is a famous network packet analysing tool that is used to display TCP\IP & other network packets being transmitted over the network attached to the system on which tcpdump has been installed....

ifconfig command

ifconfig command : Learn with some examples

‘Ifconfig’ , short for ‘Interface Configuration, is a very important utility of Linux systems. It is used to check & configure network interfaces using the terminal or CLI of Linux machines. With ifconfig command...

Old network interface name

Getting old network interface name back in RHEL/CentoS 7

Ever since the release of RHEL version 7, i have been most annoyed by the way the network interfaces have been named in OS. Earlier, the names for interfaces would be eth0 or eth1...

network monitoring

Monitoring network bandwidth with iftop command

System Admins are required to monitor IT infrastructure to make sure that everything is up & running. We have to monitor performance of hardware i.e memory, hdds & CPUs etc & so does we...

nmcli

Managing network connections using IFCONFIG & NMCLI commands

Earlier we have discussed how we can configure network connections using three different methods i.e. by editing network interface file, by using GUI & by using nmtui command (READ ARTICLE HERE). In this tutorial,...

creating dhcp

Beginner’s guide for creating DHCP server

Hello Linux-fanatics, in this tutorial we will be creating DHCP server for our IT environment. It is an important service & is used in almost all organization with large number of users & also...