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Cisco Networking

BGP Load Sharing

What is load sharing and why to use it?Load balancing with BGP is not possible in a multihomed environment with two ISPs. BGP selects only the single best path to a destination among the BGP paths that are learned from Read more…

By Joe Conklin, 3 years ago September 19, 2017
Application Containers

Docker container management using Rancher

What is container management and why to use it?A container management platform is a solution used to o create cloud-native, distributed applications and package legacy applications that were not originally designed for virtual environments. Container management software simplifies the process Read more…

By Joe Conklin, 3 years ago September 15, 2017
Cisco Firewall

Configuring Dynamic Multipoint VPN and Zone Based Firewall

What is a Dynamic Multipoint VPN and why to use it?DMVPN provides the capability for creating a dynamic-mesh VPN network without having to pre-configure (static) all possible tunnel end-point peers, including IPsec (Internet Protocol Security) and ISAKMP (Internet Security Association Read more…

By Joe Conklin, 3 years ago September 5, 2017
CentOS

Install MySQL Galera Cluster on Centos 7

What is MySQL cluster and how to use it?MySQL Galera Cluster is a synchronous multi-master cluster, available on Linux only, and only supports the XtraDB/InnoDB storage engines . It is designed to provide high availability and high throughput with low Read more…

By Joe Conklin, 3 years ago August 31, 2017
Application Containers

Installing Docker on Centos 7

What are Docker containers and how to use them?Docker is a software technology providing containers. Docker provides an additional layer of abstraction and automation of operating-system-level virtualization on Windows and Linux. Docker uses the resource isolation features of the Linux Read more…

By Joe Conklin, 3 years ago August 22, 2017
Cisco Networking

Configuring Layer 2 MPLS VPN

What is a Layer 2 MPLS VPN and why to use it?Layer 2 VPNs are a type of Virtual Private Network (VPN) that uses MPLS labels to transport data. The communication occurs between routers that are known as Provider Edge Read more…

By Joe Conklin, 4 years ago April 12, 2017
Cisco Firewall

Configuring Site-to-Site IPsec VPN and Zone Based Firewall

What is a Site-to-site IPsec VPN and why to use it?A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data as if their computers were directly connected to the Read more…

By Joe Conklin, 4 years ago December 4, 2016
CentOS

How to Clear RAM Memory Cache, Buffer and Swap Space on Linux

Clearing PageCache, dentries and inodes in LinuxLike any other operating system, GNU/Linux has implemented a memory management efficiently and even more than that. But if any process is eating away your memory and you want to clear it, Linux provides Read more…

By Joe Conklin, 5 years ago July 23, 2016
Cisco Networking

Configuring Layer 3 MPLS VPN over GRE

What is a Layer 3 MPLS GRE VPN and why to use it?The MPLS VPN L3VPN over GRE feature provides a mechanism for tunneling Multiprotocol Label Switching (MPLS) packets over non-MPLS networks. This feature allows you to create a generic Read more…

By Joe Conklin, 5 years ago May 20, 2016
Cisco Networking

BGP Conditional Advertisement

What is conditional advertisement and why to use it?Normally, routes are propagated regardless of the existence of a different path. The BGP conditional advertisement feature uses the non-exist-map and the advertise-map keywords of the neighbor advertise-map command in order to Read more…

By Joe Conklin, 5 years ago April 20, 2016

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Recent Posts
  • BGP Load Sharing
  • Docker container management using Rancher
  • Configuring Dynamic Multipoint VPN and Zone Based Firewall
  • Install MySQL Galera Cluster on Centos 7
  • Installing Docker on Centos 7
  • Configuring Layer 2 MPLS VPN
  • Configuring Site-to-Site IPsec VPN and Zone Based Firewall
  • How to Clear RAM Memory Cache, Buffer and Swap Space on Linux
  • Configuring Layer 3 MPLS VPN over GRE
  • BGP Conditional Advertisement
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