NETWORKING ESSENTIALS
Step-by-Step Guide
What is a Site-to-Site Network with Access Server
OVERVIEW :
A site-to-site VPN Setup consist of at least two network conected via a virtual private network. w'll use the procedure the procedure in this guide to set up a site-to-site vpn connection with Access Server and a site-to-site connector using an Open VPN client.
We outline creating a site-to-site VPN connections using the following :
- Acces server hoted on the headquaters network.
- An OpenVPN Installed on the branch network.
- An encrypted traffic following between the connected networks.
Example to site-to-site setup
https://openvpn.net/
Site-to-Site VPN benefits
Setting the site-to-site VPN for your companny interconnect your corperate networks, remote office,cloud networks and remote workers. In a site-to-site VPN, devices in one network ca reach devices in other network and vice versa and provides the following benefits:
- Reliably connect private network
- Keep Hardware cost down
- Provide secure cloud network access
- Effectively setup branch conectivity
What is a VPN site to IPsec
A site-to-site vpn virtual private network (VPN) is a connection between two or more networks, such as a corperate network or branch office network Organizations use to site-to-site VPNs to leverage an internet connection for private traffic as an alternative to private MPLS circuits.
Site-to-site VPNs are frequently used by companies with multiple offices in different geographic locations that need to acces the corporate network. With a Site-to-site VPN, a company can securely connects its corporate network with remote offices to communicate and share ressources as a single network.
How Does a Site-to-site VPN works ?
A site-to-site provide access from one another over the internet. It works by creating a secure, encrypted tunnel between two networks located at different sites. The tunnel act as a direct links through which data can be securely transmitted.
The VPN uses routing tables to direct data packets along the correct path within the tunnels. Site-to-site rely on ecryption protocoles to ensure data cannot be intercept or read by unauthorized parties.
The process involves establishing a gateway at each network end, efectively connecting entire networks rathers than individual clients to a VPN server. The VPN Gateway manages data encryption and decryption as it enters an exit the tunnel.
Data travel through the public internet within this tunnel. Encryption makes the data opaque to outsiders, appearing as unintelligble gibberish. Upon reaching the destination gateway, data is decrypted and transmitted to the receiving internal networks.
This secure bridge allows seamless, secure information flow between networks. Ressources can be shared as through they are on the same local network.
what is failover
failover uses guideline configurations
A Failover system is a mechanism design to ensure the continuous avaibility and reliabililty of IT ressources by automatically switching to a reducdant or standby component uppon the failure or abnomal termination of the active component. This process is crucial for systems that require near-continuous availability, such as banking systems, emergency systems.
Key Principles:
Failover system are typically used in environment where high availability and fault tolerance are critical. They can be configured in various ways, including:
- Active-Active Configuration: In this setup, redudant IT ressources actively and synchronously support the workload among active instance. When a failure is detected, the failed instance is removed from
the load balancing scheduler. - Active-Passive Configuration: Here, a standby or inactive or inactive implementation is triggered to take over processing from an IT ressource that becomes unavailable.The associated workload is directed to the instance taking over the operation.
Failover Mechanisms:
Failover mechanisms can be triggered by various events, such as hardware failure, software errors, network outstages, performance degredation, and manual intervation.
These mechanism are essential for maintaining high availability, redundancy, fault tolerance, disastered recovery, bussiness continuity and customer satisfaction.
What is High Availibity (HA)
High availibility (HA) is the ability of a system to operate continously for a disgnated period of time even if components within the system fails.A highly available system meets an agreed-upon operational performance level by eliminating single points of failure. This is accomplished by including redundant components that serve as backups that can assume processing if failure should occur. In information technology (IT), a widely held but difficult-to-achieve standard of availability is known as five-nines availability, which means the system or product is available 99.999% of the time.
HA systems are used in situations and industries where it is critical that the system remains operational. Real-world HA systems include those needed for autonomous vehicles, industrial operations,telecommunication network and healthcare sytems.Pleople's lives might depend on these systems being available and functioning all times. For example, if the system operating an autonomous vehicle, such as a self-driving car, fails to function when the vehicle is in operation, it could cause an accident, endangering its passengers, other drivers and vehicles.
Highly available systems must be well-designed and thoroughly tested before th're implemented in production environment. The components in a HA sytem must be able to maintain the specified availability standard in the event of service disruptions. Data backup and failover capabilities play important roles in ensuring HA systems meet theit availability goals, as do data storage and access technologies.