The GNS3 network simulator is a convenient open source tool for the design and simulation of Cisco-based networks.
The Linux world has different implementations for integrating multiple network cards: kernel old-timer ifenslave and the younger libteam.
The VyOS Linux distribution puts network routing, firewall, and VPN functionality together and presents a fully working dynamic multipoint VPN router as an alternative or addition to a Cisco DMVPN mesh.
Cisco's VLAN Trunking Protocol for Virtual LAN management in medium to large computer networks can make a network administrator's life easier.
Numerous PowerShell add-on modules provide security and attack functions for penetration tests and forensic analyses, to help admins search for vulnerabilities in their networks.
Employees or individual teams who need a workstation quickly can benefit from XenApp Essentials and XenDesktop Essentials; those who need more extensive services can move to XenApp and XenDesktop Services.
Small businesses often do not need the full-blown version of Windows Server 2016. If the application scenarios are manageable, the cheaper Essentials version is the ideal solution; however, it does come with a number of restrictions.
WSUS simplifies updating Windows 10 computers over the network, but first, you need to modify some settings and add new Group Policy templates to insure successful installation of the updates.
Large environments such as clouds pose demands on the network, some of which cannot be met with Layer 2 solutions. The Border Gateway Protocol jumps into the breach in Layer 3 and ensures seamlessly scalable networks.
A natural consequence of software-defined storage and software-defined data centers is the software-defined wide area network, or the Internet connections between locations and cloud services.