Has anyone noticed that computing is not the same as it was a few years ago? In addition to IT equipment, we now focus on network infrastructure and security. The expectation of today’s workforce working from anywhere is that IT will enable seamless and secure connectivity to all devices and that our business tools will be highly personalized and instantly available. They require frequent maintenance and vulnerability patches to ensure that no vulnerabilities exist. Improper configuration, incorrect configuration processing, and weak encryption keys can put the entire network at risk.
In today’s world, globally ensuring internet security and network equipment protection is the best option for any business. To protect the business from cyber dangers, it is essential to start deploying security solutions.
Network security with cybersecurity–
The Zero Trust Paradigm is defined as a security model, set of system design principles, coordinated cybersecurity, and system management strategy. The security guidelines presented here will introduce new network designs aimed at achieving more mature zero-trust principles to mitigate common vulnerabilities and shortcomings of existing networks.
In simple terms, Network security is a set of configurations and regulations that use software and hardware technologies to protect the integrity, confidentiality and accessibility of computer networks.
Given the current circumstances and the increasing scale of cyberattacks due to the pandemic, anyone working to strengthen network security should be aware of network-related cyberattacks. Let’s review the core network security infrastructure and design in more detail.
The six guidelines of network architecture and its design –
We’re going to look at the six main elements of network security now that we’ve covered the basics, architecture, and design.
1. Perimeter and internal defense devices to be installed–
Multiple layers of defense must be created against external threats, as the strategy is defensive to protect individual components –
• Inbound and outbound traffic must be logged into a network monitoring service.
• To control traffic, firewalls must be in place throughout the network.
• An ISP (Internet service provider) will be installed to facilitate the connection to the external network.
• Multiple dedicated remote log servers are deployed.
2. Similar network systems to be grouped – To prevent adversary lateral movement, similar systems within network devices must be grouped together. It is advisable to separate similar systems into separate subnets, VPNs or routers. Workstations, servers and printers, for example, should all be separated.
3. Rear door connections to remove- Backdoor connections are defined as connections between two or more devices in separate network zones. It is highly recommended to remove all backdoor connections and exercise caution when connecting devices to multiple networks.
4. Perimeter access control to use – To apply a perimeter rule that specifies which connections to allow and to create rule sets that focus only on allowing those connections and disallowing everything else. The main purpose of this rule is to allow multiple kinds of connections to be rejected by a single rule. To prevent unnecessary access to the internal network, these access control settings must be configured with the appropriate laws.
5. NAC (Network Access Control) is a solution – Consider a solution that detects and authenticates every unique device connected to the network. Unauthorized physical connections are prevented and approved physical connections are monitored using a NAC system. One such example is port security, which seems to be difficult to control.
6. VPN gateways will be limited – The most crucial gateway is a VPN, accessible over the Internet and vulnerable to brute force attacks, network scanning and zero-day vulnerabilities. These flaws should be mitigated by eliminating all unnecessary functionality and implementing strict traffic filtering rules.
Perform periodic network tests –
Numerous vulnerabilities and security difficulties can be avoided by following the above network infrastructure and security principles. In light of this delicate scenario, it is imperative that we are all cyber security aware and safe while working. Organizations are expected to take the initiative to provide appropriate cybersecurity awareness training to employees and help them combat current cyberattacks.
With so many security issues and network vulnerabilities attacking the network these days, being proactive and fixing these flaws as soon as possible is the only prudent course of action.
Network Assessment and Penetration Testing can help you find any vulnerabilities in your network architecture that could be exploited. Therefore, make a habit of performing network penetration tests regularly to protect your business against internal and external threats.
What are the most effective network security practices for a business to follow or implement? Do comment below and let us know your thoughts about it.
*** This is a syndicated blog from the Security Bloggers Network of Kratikal Blogs written by Deepti Sachdeva. Read the original post at: https://www.kratikal.com/blog/guidelines-on-network-infrastructure-security/