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…
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…
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…
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…
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…
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…
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…
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…
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…
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…