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Security policy management for the hybrid cloud environment Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

A firewall that runs 24/7 requires a good amount of computing resources. Especially if you are running a complex firewall system, your... Firewall Change Management Firewall performance tuning: Common issues & resolutions Asher Benbenisty 2 min read Asher Benbenisty Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 8/9/23 Published A firewall that runs 24/7 requires a good amount of computing resources. Especially if you are running a complex firewall system, your performance overhead can actually slow down the overall throughput of your systems and even affect the actual functionalities of your firewall. Here is a brief overview of common firewall performance issues and the best practices to help you tune your firewall performance . 7 Common performance issues with firewalls Since firewall implementations often include some networking hardware usage, they can slow down network performance and traffic bottlenecks within your network. 1. High CPU usage The more network traffic you deal with, the more CPU time your server will need. When a firewall is running, it adds to CPU utilization since the processes need more power to execute the network packet analysis and subsequent firewall This may lead to firewall failures in extreme cases where the firewall process is completely shut down or the system experiences a noticeable lag affecting overall functionality. A simple way to resolve this issue would be to increase the hardware capabilities. But as that might not be a viable solution in all cases, you must consider minimizing the network traffic with router-level filtering or decreasing the server load with optimized 2. Route flapping Router misconfiguration or hardware failure can cause frequent advertising of alternate routes. This will increase the load on your resources and thus lead to performance issues. 3. Network errors and discards A high number of error packets or discarded packets can burden your resources as these packets are still processed by the firewall even when they ultimately turn out to be dud in terms of traffic. Such errors usually happen when routers try to reclaim some buffer space. 4. Congested network access link Network access link congestion can be caused due to a bottleneck happening between a high bandwidth IP Network and LAN. When there is high traffic, the router queue gets filled and causes jitters and time delays. When there are more occurrences of jitter, more packets are dropped on the receiving end, causing a degradation of the quality of audio or video being transmitted. This issue is often observed in VoIP systems . 5. Network link failure When packet loss continues for over a few seconds, it can be deemed a network link failure. While re-establishing the link could take just a few seconds, the routers may already be looking for alternate routes. Frequent network link failures can be a symptom of power supply or hardware issues. 6. Misconfigurations Software or hardware misconfigurations can easily lead to overloading of LAN, and such a burden can easily affect the system’s performance. Situations like these can be caused by misconfigured multicast traffic and can affect the overall data transfer rate of all users. 7. Loss of packets Loss of packets can cause timeout errors, retransmissions, and network slowness. Loss of packets can happen due to delayed operations, server slowdown, misconfiguration, and several other reasons. How to fine-Tune your firewall performance Firewall performance issues can be alleviated with hardware upgrades. But as you scale up, upgrading hardware at an increasing scale would mean high expenses and an overall inefficient system. A much better cost-effective way to resolve firewall performance issues would be to figure out the root cause and make the necessary updates and fixes to resolve the issues. Before troubleshooting, you should know the different types of firewall optimization techniques: Hardware updates Firewall optimization can be easily achieved through real-time hardware updates and upgrades. This is a straightforward method where you add more capacity to your computing resources to handle the processing load of running a firewall. General best practices This involves the commonly used universal best practices that ensure optimized firewall configurations and working. Security policies, data standard compliances , and keeping your systems up to date and patched will all come under this category of optimizations. Any optimization effort generally applied to all firewalls can be classified under this type. Vendor specific Optimization techniques designed specifically to fit the requirements of a particular vendor are called vendor-specific optimizations. This calls for a good understanding of your protected systems, how traffic flows, and how to minimize the network load. Model specific Similar to vendor-specific optimizations, model-specific optimization techniques consider the particular network model you use. For instance, the Cisco network models usually have debugging features that can slow down performance. Similarly, the PIX 6.3 model uses TCP intercept that can slow down performance. Based on your usage and requirements, you can turn the specific features on or off to boost your firewall performance. Best practices to resolve the usual firewall performance bottlenecks Here are some proven best practices to improve your firewall’s performance. Additionally, you might also want to read Max Power by Timothy Hall for a wholesome understanding. Standardize your network traffic Any good practice starts with rectifying your internal errors and vulnerabilities. Ensure all your outgoing traffic aligns with your cybersecurity standards and regulations. Weed out any application or server sending out requests that don’t comply with the security regulations and make the necessary updates to streamline your network. Router level filtering To reduce the load on your firewall applications and hardware, you can use router-level network traffic filtering. This can be achieved by making a Standard Access List filter from the previously dropped requests and then routing them using this list for any other subsequent request attempts. This process can be time-consuming but is simple and effective in avoiding bottlenecks. Avoid using complicated firewall rules Complex firewall rules can be resource heavy and place a lot of burden on your firewall performance. Simplifying this ruleset can boost your performance to a great extent. You should also regularly audit these rules and remove unused rules. To help you clean up firewall rules, you can start with Algosec’s firewall rule cleanup and performance optimization tool . Test your firewall Regular testing and auditing of your firewall can help you identify any probable causes for performance slowdown. You can collect information on your network traffic and use it to optimize how your firewall operates. You can use Algosec’s firewall auditor services to take care of all your auditing requirements and ensure compliance at all levels. Make use of common network troubleshooting tools To analyze the network traffic and troubleshoot your performance issues, you can use common network tools like netstat and iproute2. These tools provide you with network stats and in-depth information about your traffic that can be well utilized to improve your firewall configurations. You can also use check point servers and tools like SecureXL, and CoreXL. Follow a well-defined security policy As with any security implementation, you should always have a well-defined security policy before configuring your firewalls. This gives you a good idea of how your firewall configurations are made and lets you simplify them easily. Change management is also essential to your firewall policy management process . You should also document all the changes, reviews, and updates you make to your security policies to trace any problematic configurations and keep your systems updated against evolving cyber threats. A good way to mitigate security policy risks is to utilize AlgoSec. Network segmentation Segmentation can help boost performance as it helps isolate network issues and optimize bandwidth allocation. It can also help to reduce the traffic and thus further improve the performance. Here is a guide on network segmentation you can check out. Automation Make use of automation to update your firewall settings. Automating the firewall setup process can greatly reduce setup errors and help you make the process more efficient and less time-consuming. You can also extend the automation to configure routers and switches. Algobot is an intelligent chatbot that can effortlessly handle network security policy management tasks for you. Handle broadcast traffic efficiently You can create optimized rules to handle broadcast traffic without logging to improve performance. Make use of optimized algorithms Some firewalls, such as the Cisco Pix, ASA 7.0 , Juniper network models, and FWSM 4.0 are designed to match packets without dependency on rule order. You can use these firewalls; if not, you will have to consider the rule order to boost the performance. To improve performance, you should place the most commonly used policy rules on the top of the rule base. The SANS Institute recommends the following order of rules: Anti-spoofing filters User permit rules Management permit rules Noise drops Deny and alert Deny and log DNS objects Try to avoid using DNS objects that need DNS lookup services. This slows down the firewall. Router interface design Matching the router interface with your firewall interface is a good way to ensure good performance. If your router interface is half duplex and the firewall is full duplex, the mismatch can cause some performance issues. Similarly, you should try to match the switch interface with your firewall interface, making them report on the same speed and mode. For gigabit switches, you should set up your firewall to automatically adjust speed and duplex mode. You can replace the cables and patch panel ports if you cannot match the interfaces. VPN If you are using VPN and firewalls, you can separate them to remove some VPN traffic and processing load from the firewall and thus increase the performance. UTM features You can remove the additional UTM features like Antivirus, and URL scanning features from the firewall to make it more efficient. This does not mean you completely eliminate any additional security features. Instead, just offload them from the firewall to make the firewall work faster and take up fewer computing resources. Keep your systems patched and updated Always keep your systems, firmware, software, and third-party applications updated and patched to deal with all known vulnerabilities. Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

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I spend my days talking with customers and prospects around their security solutions, primarily regarding securing application... Hybrid Cloud Security Management Navigating the currents of cybersecurity trends Eric Jeffery 2 min read Eric Jeffery Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. cloudsecurity, hybridcloud, hybridcloudsecurity Tags Share this article 7/13/23 Published I spend my days talking with customers and prospects around their security solutions, primarily regarding securing application connectivity. Every conversation takes its own direction. Nevertheless, I hear similar challenges and goals across industries. I heard from a manufacturing firm that cost constraints require they centralize on Microsoft. An oil and gas company mentioned their needs to align their Operating Technology (OT) environment with their corporate technology solutions (IT). A healthcare organization let me know they were asked to use more Cisco technology and decommission competitive solutions. A financial services firm stated that they were looking to consolidate with zScaler thus eliminating numerous other security solutions. A second financial services firm inquired about AlgoSec Cloud offerings , so they ensure proper monitoring and security for their Cloud deployments. These themes appear and reappear daily, highlighting key trends throughout information security. The older I get, the more I understand how “the more things change, the more they stay the same.” Trends fall perfectly into this colloquialism, as we see organizations routinely move towards newer, hotter, and hopefully more powerful technologies. Working directly with customers of cybersecurity technology, I see similarities with direction and desire for future technical goals. Some of these I’ve seen before, such as centralization and consolidation. Cloud technologies have been around for a decade or more, but I consider this a current trend due to Cloud’s nature and diversity within the technology space. While specific trends come and go, the idea of trends remains the same. Cybersecurity professionals should understand current trends around the industry and see how these movements can improve their security maturity. In the fast-paced realm of cybersecurity, trends constantly emerge and evolve, shaping the landscape in which organizations operate. As I engage with customers and prospects, I uncover recurring patterns and goals that drive the industry forward. Understanding these trends is essential for cybersecurity professionals to strengthen their defenses and adapt to emerging threats. In this blog post, we will dive into the prevailing trends in cybersecurity today, providing insights to help organizations navigate the ever-changing currents. Centralization and consolidation: Empowering organizational control One significant trend is the movement towards centralization and consolidation. Centralization involves bringing technology resources into a unified location or under a cohesive solution. Consolidation focuses on streamlining vendors or technical suites to improve efficiency and reduce costs. For instance, organizations are exploring enterprise licensing options, such as those offered by Microsoft, which provide bundled services like MS Teams, O365, and MS Defender. This consolidation empowers businesses to replace multiple tools with integrated Microsoft technologies, resulting in cost savings and streamlined operations. Enterprise licensing grows in popularity (and could very well be a trend in and of itself) providing organizations an easy way to save money while using a consolidated solution. The most common enterprise license that I run into comes from Microsoft. Businesses that have certain license levels receive additional services such as MS Teams, O365, MS Defender, or other Microsoft technologies at either no or reduced cost. This capability empowers businesses to replace Zoom and WebEx with MS Teams. On the security front companies replace Crowdstrike, McAfee, Norton, and other endpoint protection solutions with MS Defender. For endpoint vulnerability management, Nexpose and Nessus see displacement by MS Defender Vulnerability Management. QRadar, Splunk, Exabeam and other SIEM lose out to Microsoft Sentinel. With a Cisco relationship, companies can potentially save money substituting Illumio or Guardicore in lieu of Cisco Secure Workload (formerly Tetration). With cost management sitting atop the list of priorities for CFO’s , consolidation is a consummate method for technology executives to align with this consideration. Consolidation trends reoccur regularly, especially during financial turmoil. Organizations looking to align technology with financial and business concerns should look to this trend and determine if/where benefits align. After consolidation, I hear a lot about centralization. While customers don’t use this word, at the core, this is what they are looking for. The main technical consideration around this consolidation falls under secure access services edge, known as SASE . SASE inherently centralizes security inside a robust environment that passes customer traffic. COVID-19 introduced a severe need to create secure solutions for remote workers. While SASE began pre-2020, the virus really launched this business (as it did with teleconferencing, a trend back in 2020 and 2021). Entities using SASE pass end user traffic through a central location which provides numerous security services. These offerings include virtual private networks (VPN), proxy, web-filtering, virus protection, spam protection, and many others. Each of these technologies also lends themselves to the consolidation trend tying both movements together. Organizations looking to cut costs procure SASE, align this with numerous information technology teams (networks, Cloud, security, etc.) and double up on trends. Embracing the power of the Cloud The Cloud has revolutionized the information technology landscape, and cyber security is no exception. Organizations are increasingly leveraging Cloud technology as part of their digital transformation journeys. From compliance to network security, application security, and identity management, the Cloud offers a multitude of benefits. It enables organizations to offload hardware maintenance, software upgrades, and data center costs while providing scalability and flexibility. My customers look to not only expand in single clouds, primarily AWS, MS Azure, and Google Cloud, they are going across Clouds creating hybrid deployments. Hybrid solutions enhance the need for security as cross deployments require extensive monitoring and review ensuring zero gaps. Cloud attacks happen more often than ever and with this trend continuing, industry must understand and secure these environments. The importance of staying informed To thrive in the ever-changing world of cyber security, professionals must stay informed about the latest trends. Whether it’s for cost optimization, enhanced security, or delivering innovative services, organizations need to be aware of opportunities to improve their information technology landscapes. Complacency can be detrimental, and understanding the current trends allows businesses to align their goals, enhance operational capacity, and safeguard their digital assets effectively. Centralization, consolidation, and Cloud technologies are at the forefront of today’s trends, offering organizations the means to grow, add value, and protect their data. In the dynamic realm of cyber security, staying ahead of the curve is crucial for organizations seeking to fortify their defenses. Centralization, consolidation, and Cloud technologies are driving the industry forward. By understanding and embracing these trends, businesses can align their strategies, enhance security postures, and capitalize on growth opportunities. As the currents of cyber security trends continue to shift, it’s essential to navigate these waters with agility and adaptability. By doing so, organizations can confidently steer towards success in the ever-evolving world of cyber security. For more information on hybrid cloud security, please check out the latest Managing Cybersecurity podcast. #cloudsecurity #hybridcloud #HybridCloudSecurity Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. 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Understand the Federal Information Security Management Act (FISMA). Learn key requirements, best practices, and how to achieve and maintain FISMA compliance. FISMA compliance defined: Requirements & best practices ---- ------- Schedule a Demo Select a size ----- Get the latest insights from the experts Use these six best practices to simplify compliance and risk mitigation with the AlgoSec platform White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure continuous compliance Solution overview See how this customer improved compliance readiness and risk management with AlgoSec Case study Choose a better way to manage your network

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Best practices for network security governance in AWS and hybrid network environments Webinars Overcoming the Hybrid Cloud Policy Management Challenge: A Panel Discussion Visibility May 27, 2020 Omer Ganot Product Manager Yonatan Klein irector of Product Management Relevant resources State of cloud security: Concerns, challenges, and incidents Read Document Demystifying Network Security in Hybrid Cloud Environments Keep Reading A Pragmatic Approach to Network Security Across Your Hybrid Cloud Environment Keep Reading Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Learn how to secure your hybrid cloud environment with best practices and strategies in this article Safeguard your sensitive data from potential threats Hybrid cloud security management: Best practices + solution Yes, AlgoSec supports continuous compliance monitoring. As organizations adapt their security policies to meet emerging threats and address new vulnerabilities, they must constantly verify these changes against the compliance frameworks they subscribe to. Can AlgoSec be used for continuous compliance monitoring? Select a size Which network Get the latest insights from the experts Learn how AlgoSec can help you pass PCI-DSS Audits and ensure continuous Solution Overview Use these six best practices to simplify compliance and risk Case study See how this customer improved compliance readiness and risk Case study Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue