How to Install and Configure Nmcli

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What is nmcli?

nmcli stands for Network Management Command-Line Interface, and is a tool for managing the NetworkManager application and reporting on the status of the network. It can be utilized as a substitution for nm-applet or other similar graphical clients. nmcli is used to display, create, delete, edit, activate, deactivate network connections, and control and display network device status.

Typical uses include:

  • Scripts: Utilize NetworkManager via nmcli rather than managing network connections manually. nmcli supports a terse output format that is healthier fitted to the script process. Note that NetworkManager can even execute scripts, referred to as “dispatcher scripts,” responding to network events.
  • Servers, headless machines, and terminals: nmcli tool can be used to control NetworkManager without a graphical user interface, including creating, deleting, editing, starting and stopping network connections as well as viewing network status.
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How To Change the SNMP Port on CentOS

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Introduction

SNMP, or Simple Network Management Protocol, is widely used to communicate with and monitor network devices, servers, and more, all via IP. In the previous article, we installed an SNMP agent on a CentOS 6.5 server. This agent allows for the collection of data from our server and makes the information available to a remote SNMP manager. To add a little security, we’ll now change the port that SNMP listens on.

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How To Install and Configure SNMP on CentOS

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Introduction

SNMP, or Simple Network Management Protocol, is widely used to communicate with and monitor network devices, dedicated servers, and more, all via IP. In this case, we’ll be installing an SNMP agent on a CentOS VPS server, which will allow for collection of data from our server, and make the information available to a remote SNMP manager.

Pre-Flight Check

  • These instructions are intended for installing SNMP and doing a very basic configuration.
  • I’ll be working from a Liquid Web Core Managed CentOS 6.5 server, and I’ll be logged in as root.
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Understanding Load Balancing for Web Servers

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Load balancing is the distribution of a workload across many nodes. In the web hosting industry, it is typically used for balancing HTTP traffic over multiple servers acting together as a web front-end. For the sake of this article, we will focus on the balancing of HTTP and HTTPS traffic through a Zeus Load Balancer.

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