Networking and Security

The concept of building network services has changed in recent years. Ten years ago, a network service was based on “connecting things. “Today, network services are defined by: speed, quality of service, content filtering, security, resilience to failure and redundancy. The sophistication of the market is growing as technological progress has made these tasks independently, simple and well understood. Customers are implementing and increasing the complexity of data centres without realizing it as they integrate more and more technologies into their environment. WAN or LAN, wired or wireless networks make the process even more complex, and many more parameters must be taken into account in all the IT areas. At Nethexa Group, we can take care of all your IT operations in the network area or manage your critical technology projects alone, from system evaluation, optimization and support to your strategic move to the cloud. If you need someone experienced, reliable and proven, Grupo Nethexa is your ideal partner.

When wireless is perfectly applied the whole earth will be converted into a huge brain, which in fact it is, all things being particles of a real and rhythmic whole. We shall be able to communicate with one another instantly, irrespective of distance. — Nikola Tesla

Managed Services

Actively manage your workstations, servers, software deployment and network security.

On-site support

Our flexible recurring, project-based and emergency support options ensure that your staff gets the help they need when and where they need it.

Technical Support

Remote end-user access and 24×7 support from our Network Operations Center help resolve IT issues quickly, whether your users are in the office or travelling.

Infrastructure Services

Network implementation and design, infrastructure assessment and support to ensure the agility and efficiency of your IT system.

Remote Monitoring

Secure facilities and monitor your network and server activities by facilitating the administration of your WAN or LAN networks.

Disaster Recovery (DR) and Business Continuity (BC)

Detailed assessment of points of failure followed by effective backup, DR / BC planning and implementation.

Bandwidth Management

Easy-to-manage network and bandwidth monitoring solutions to help improve the overall performance of your network.

Helping IT reach its full potential

We can help you transform your IT: from something that focuses on putting out fires to a mature IT organization aligned with the business to achieve organizational goals.

No matter what stage you’re at, we’ll help you improve processes, implement the right tools and maximize the effectiveness of your existing IT staff and resources. We start by listening, asking the right questions and then providing the best solutions that fit your needs, not our business model.

No one wants a one-size-fits-all solution – we know you don’t either. Every organization is unique, and so are your IT needs. As your organization evolves and technologies advance, you’ll need an IT partner who can make those transitions smoothly and effectively.

Network security is the process of taking physical and software preventative measures to protect the underlying network infrastructure from unauthorized access, misuse, malfunction, modification, destruction or improper disclosure, thereby creating a secure platform for computers, users and programs to perform their critical permitted functions within a secure environment. — SANS Institute

Network security basics

Network security is the practice of preventing and protecting against unauthorized intrusions into corporate networks. It focuses on supplementing the security we already have in place, such as usernames or passwords, typically located on individual devices; instead, network security concentrates on how those devices interact and how they connect.

Network security is the process of taking physical and software preventative measures to protect the underlying network infrastructure from unauthorized access, misuse, malfunction, modification, destruction or improper disclosure, thereby creating a secure platform for computers, users and programs to perform their critical permitted functions within a secure environment.

Network security consists of:

Protection: you must configure your systems and networks as correctly as possible.
Detection: you must identify when your configuration has changed or when network traffic indicates a problem.
Reaction: after identifying problems quickly, you must respond to them and return to a specific state as soon as possible.

Photo by Sai Kiran Anagani on Unsplash

This, in short, is a defence-in-depth strategy. Your network is not a line or a point: it is a territory, and even if an attacker has invaded part of it, you still have the resources to regroup and drive them out if you have organized your defence correctly.

Network security methods

We use a variety of specialized techniques and styles of network security that we can implement.

Access control: provides us with the ability to block unauthorized users and devices from accessing your network. Users who have access to the network should only work with the limited set of resources for which they have been authorized.

Anti-malware: Viruses, worms and Trojans, by definition, attempt to spread through a network. Our team does everything possible to prevent the initial infection and remove malware that may reach your network.

Application security: insecure applications are often the vectors by which attackers gain access to your network. Nethexa Group employs hardware, software, and security processes to block those applications.

Behavioural analysis: Through specialized software, we can analyze normal network behaviour to detect anomalies or breaches as they occur.

Email security: Phishing is one of the most common ways attackers gain access to a network. Email security tools can block both inbound attacks, and outbound messages with sensitive data coupled with clear policies and proper education can prevent many problems for your company and employees.

VPN: a tool authenticates communication between a device and a secure network, creating a safe, encrypted “tunnel” through the open Internet. Nethexa Group has multiple solutions in this aspect, from proprietary to open source, much cheaper to implement and much more secure.

Intrusion detection and prevention: these systems scan network traffic to identify and block attacks, often correlating network activity signatures with databases of known attack techniques.

Network segmentation: defined segmentation places network traffic into different classifications and facilitates the application of security policies. Proper implementation of this logical segmentation improves security and makes your network much faster and more efficient.

Mobile device and wireless security: Wireless devices have all the potential security flaws of any other networked device, but they can also connect to almost any wireless network anywhere, which implies an additional risk that is rarely considered.

Web security: You must be able to control the web usage of internal staff to prevent web-based threats from using browsers as a vector to infect your network. At Nethexa Group, we use state-of-the-art technology to implement proxies that allow internal traffic control.

Data loss prevention: humans are inevitably the weakest security link. Grupo Nethexa helps you implement technologies and processes to ensure that personnel do not deliberately or inadvertently send sensitive data outside the network.

Firewall: Grupo Nethexa enables you to manage and define rules to allow or deny traffic at the edge between your network and the Internet, establishing a barrier between your trusted zone and the outside. For this, it is necessary to create a defence-in-depth strategy.

Network and Cloud Security

Photo by C Dustin on Unsplash

More and more companies are offloading some of their computing needs to cloud service providers, creating hybrid infrastructures. Their internal network has to interoperate transparently and securely with servers hosted by third parties. Sometimes this infrastructure itself is a standalone network, which can be physical (multiple servers in the cloud working together) or virtual (multiple VM instances running together and “interconnecting” with each other on a single physical server). To manage security aspects, Grupo Nethexa can set up centralized security control policies on its platform. It is configured to match your policies and procedures for your internal networks. We have more than eight years of experience in managing hybrid clouds, and that allows us to know first-hand how this type of solution should behave and be configured in multiple scenarios.