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AlgoSec & Juniper Networks AlgoSec seamlessly integrates with Juniper devices to automate application and user aware security policy management and ensure that Juniper devices are properly configured. AlgoSec supports the entire security policy management lifecycle — from application connectivity discovery, through ongoing management and compliance, to rule recertification and secure decommissioning. How to Juniper Policy Optimization Learn how to achieve a clean and optimized security policy on your Juniper device Juniper Regulatory Compliance Learn how to prepare for a regulatory audit Juniper Risk Assessment Learn how to assess risk on your Juniper devices with AlgoSec See how Juniper Users Can Benefit from AlgoSec Schedule time with one of our experts

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In our previous post we have provided some details about a new fork of Kinsing malware, a Linux malware that propagates across... Cloud Security Router Honeypot for an IRC Bot Rony Moshkovich 2 min read Rony Moshkovich 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. glibc_2 Tags Share this article 9/13/20 Published In our previous post we have provided some details about a new fork of Kinsing malware, a Linux malware that propagates across misconfigured Docker platforms and compromises them with a coinminer. Several days ago, the attackers behind this malware have uploaded a new ELF executable b_armv7l into the compromised server dockerupdate[.]anondns[.]net . The executable b_armv7l is based on a known source of Tsunami (also known as Kaiten), and is built using uClibc toolchain: $ file b_armv7l b_armv7l: ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), dynamically linked, interpreter /lib/ld-uClibc.so.0, with debug_info, not stripped Unlike glibc , the C library normally used with Linux distributions, uClibc is smaller and is designed for embedded Linux systems, such as IoT. Therefore, the malicious b_armv7l was built with a clear intention to install it on such devices as routers, firewalls, gateways, network cameras, NAS servers, etc. Some of the binary’s strings are encrypted. With the help of the HexRays decompiler , one could clearly see how they are decrypted: memcpy ( &key, "xm@_;w,B-Z*j?nvE|sq1o$3\"7zKC4ihgfe6cba~&5Dk2d!8+9Uy:" , 0x40u ) ; memcpy ( &alphabet, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. " , 0x40u ) ; for ( i = 0; i < = 64; ++i ){ if ( encoded [ j ] == key [ i ]) { if ( psw_or_srv ) decodedpsw [ k ] = alphabet [ i ] ; else decodedsrv [ k ] = alphabet [ i ] ; ++k; }} The string decryption routine is trivial — it simply replaces each encrypted string’s character found in the array key with a character at the same position, located in the array alphabet. Using this trick, the critical strings can be decrypted as: Variable Name Encoded String Decoded String decodedpsw $7|3vfaa~8 logmeINNOW decodedsrv $7?*$s7

Compliance made easy Pass your audits stress free AlgoSec Webinar Webinars Compliance made easy. Pass your audits stress-free. Don’t fail an audit ever again. Yes, it’s possible. It doesn’t matter what regulation you are talking about, whether your own internal compliance standard or a common global framework such as PCI DSS, SOX, HIPPA, SWIFT, or even HKMA. We’ll show you how. In this webinar, AlgoSec security expert Tal Dayan will reveal: The secrets to passing audits How to improve your compliance score How to always remain compliant January 27, 2021 Tal Dayan AlgoSec security expert Relevant resources Network Security Audit? Passing Your Next One with Flying Colors Keep Reading Network Security Audit? Passing Your Next One with Flying Colors Keep Reading Regulations and compliance for the data center - A Day in the Life Read Document 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

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. Orange Cyberdefense Furnishes Application Delivery and Network Automation Organization Orange Cyberdefense Industry Retail & Manufacturing Headquarters Multinational Download case study Share Customer
success stories "We cut the time it takes to implement firewall rules by at least 50%" Application owners for global retail chain get faster response times with application visibility and automated deployment. Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group, providing managed security, managed threat detection & response services to organizations around the globe. They embed security into Orange Business Services solutions with more than 250 security researchers and analysts and 16 SOCs distributed around the world supporting customers in over 160 countries. The Challenge Orange Cyberdefense is an on-site consultant for a large retail chain with hundreds of stores and hundreds of thousands of employees spread out across the world.The client has over 2,500 multi-vendor firewalls and Layer 3 devices in their global data centers. They also run hundreds of mission-critical business services. Business services include supply chain management and ERP systems, global eCommerce operations, financial management systems, and much more. As a result, they had to cope with hundreds of change requests daily.Some of the challenges included: Lack of centralized management – Multiple vendors’ firewalls are deployed, which were implemented by multiple third-party vendors. There was no validation that rules were consistently applied across multiple vendor’s management consoles. Commissioning and decommissioning devices – A mix of multi-vendor new and legacy devices run in the data center and maintaining consistency across multiple vendors and multiple versions of devices was difficult. Lack of automation – Firewall communication and traffic flows were described in Excel sheets and needed to be manually updated whenever there was a change. Slow execution of change requests – Implementing firewall changes took over a week. Poorly implemented rules – The rules did not reflect what the requester asked for. They either allowed too much traffic in or were too narrow, not allowing the required traffic and thus needed to be re-implemented. The Solution The client searched for a solution that provided: Faster implementation of firewall changes. Comprehensive firewall support for a globally dispersed multi-vendor, hybrid estate. Automation of security policy change management and documentation of security policy changes. Visibility into their business applications and traffic flows. They implemented the AlgoSec Security Policy Management Solution, made up of AlgoSec Firewall Analyzer, AlgoSec FireFlow, and AlgoSec AppViz and AppChange (formerly AlgoSec BusinessFlow). AlgoSec Firewall Analyzer analyzes complex network security policies across on-premise, cloud, and hybrid networks. It automates and simplifies security operations, including troubleshooting, auditing and risk analysis. Using Firewall Analyzer, the client can optimize the configuration of firewalls, and network infrastructure to ensure security and compliance. AlgoSec FireFlow enables security staff to automate the entire security policy change process from design and submission to proactive risk analysis, implementation, validation, and auditing. Its intelligent, automated workflows save time and improve security by eliminating manual errors and reducing risk. AlgoSec AppViz and AppChange (formerly AlgoSec BusinessFlow) discover, identify, and map business applications, providing critical security information regarding the firewalls and firewall rules supporting each connectivity flow. With AlgoSec AppChange, changes can be made at the business application level, including application migrations, server deployment, and decommissioning projects. The Results Some of the ways the client benefits from using AlgoSec include: Greater transparency by providing a single source of truth that took into consideration the entire network estate. 50% reduction in the time needed to implement firewall rules. More communication between network security/IT staff and business application owners who are now able to submit change requests in business language and easily describe their needs, thus reducing misconfigurations and potential breaches. Better compliance reporting – with both an easy API integration and also audit-ready compliance reports. Automated change management – network changes are now recorded while being made – not managed with Excel. By using AlgoSec, application owners have more visibility into the network and are better able to trace what has changed within their business applications. “Documentation is several hundred percent better this way,” said Hans Broomé, Network and Security Consultant at Orange Cyberdefense. “With many different versions of the services, by using AlgoSec the IT team is confident that they are making changes to the correct version.” There were even unexpected gains, such as improved security management procedures. Change requests became more accurate as they gained visibility into the network and made the change request process more systematic and transparent. Requesters, as well as stakeholders such as their managers, have full visibility of their change request’s status and can verify that the request works as intended. Orange Cyberdefense is also impressed with the dedicated attention they receive from AlgoSec. AlgoSec’s support team is familiar with the global organization and provides dedicated attention tailored to their exact needs. They stay up to date with the AlgoSec solution’s latest capabilities, and the technical team maximizes their use of it thanks to an extensive training library. “The best is yet to come,” concluded Broomé. Schedule time with one of our experts

Discover key insights on cloud network security, its benefits, challenges, and best practices for protecting your cloud environment effectively. Cloud network security: Challenges and best practices What is cloud network security? Cloud network security refers to the measures used to protect public, private, and hybrid cloud networks. These measures include technology, services, processes, policies, and controls and can defend against data exposure or misuse. Why is cloud network security important? Cloud network security is important because of the wide range of threats to data and other cloud resources. Some of the most common include data breaches and exposure, malware, phishing, compromised APIs, distributed denial-of-service (DDoS), and DNS attacks, among others. In addition to defending against threat actors, cloud networks must also comply with an ever-growing number of regulations. A cloud-native security tool can provide the protection, incident response, and compliance that organizations need. Cloud security vs. network security Network security is a type of cloud security. If used in a hybrid system, it can rely on physical barriers and protections, whereas cloud security must exclusively use virtual solutions. In cloud computing, several organizations may share resources through infrastructure-as-a-service platforms like AWS EC2. Distributed data centers mean physical cybersecurity measures, like firewalls, must be replaced with virtual projections. There are three categories of cloud security: public, private, and hybrid cloud environments. Each offers its own set of challenges, which only increase in complexity for organizations with a multi-cloud environment. Schedule a Demo How does cloud network security work? Cloud network security routes traffic using software-defined networking. These protections are different from on-premise firewall systems and are virtualized and live in the cloud. The most secure platforms are built on a zero-trust security model, requiring authentication and verification for every connection. This helps protect cloud resources and defend them throughout the threat lifecycle. Schedule a Demo The benefits of cloud network security Cloud networks are inherently complex, and managing them using native tools can leave your organization vulnerable. Using a cloud network security solution offers several advantages. Improved protection The most important benefit of a secure cloud infrastructure is better protection. Managed permissions and orchestration can help prevent breaches and ensure better security across the system. Automated compliance A security solution can also help ensure compliance through automation that reviews policies for the most up-to-date regulatory and industry requirements and deploys the policy to multiple cloud platforms from a single place. Better visibility With a comprehensive solution, you can see all your properties—including on-premise and hybrid systems—in a single pane of glass. Improved visibility means recognizing new threats faster and resolving issues before they arise. Schedule a Demo Cloud network security challenges The cloud offers several benefits over traditional networks but also leads to unique vulnerabilities. Complexity across security control layers Cloud providers’ built-in security controls, such as security groups and network ACLs, impacts security posture. There is a need to protect cloud assets such as virtual machines, DBaaS, and serverless functions. Misconfigurations can introduce security risks across various assets, including IaaS and PaaS. Cloud and traditional firewall providers also offer advanced network security products (such as Azure Firewall, Palo Alto VM-Series, Check Point CloudGuard). Multiple public clouds Today’s environment uses multiple public clouds from AWS, Azure, and GCP. Security professionals are challenged by the need to understand their differences while managing them separately using multiple consoles and diverse tools. Multiple stakeholders Unlike on-premise networks, managing deployment is especially challenging in the cloud, where changes to configurations and security rules are often made by application developers, DevOps, and cloud teams. Schedule a Demo Key layers for cloud security Robust public cloud network security architecture must include four separate areas—layers that build upon each other for an effective network security solution. Cloud security architecture is fundamentally different from its on-premise counterpart. Cloud security challenges are met by a layered approach rather than a physical perimeter. Security for AWS, Azure, or any other public cloud employs four layers of increasing protection. Layer 1: Security groups Security groups form the first and most fundamental layer of cloud network security. Unlike traditional firewalls that use both allow and deny rules, security groups deny traffic by default and only use allow rules. These security groups are similar to the firewalls of the 90s in that they’re directly connected to servers (instances, in cloud architecture terms). If this first layer is penetrated, control of the associated security group is exposed. Layer 2: Network Access Control Lists (NACLs) Network Access Control Lists (NACLs) are used to provide AWS and Azure cloud security. Each NACL is connected to a Virtual Private Network (VPN) or Virtual Private Cloud (VPC) in AWS or VNet in Azure and controls all instances of that VPC or VNet. Centralized NACLs hold both allow and deny rules and make cloud security posture much stronger than Layer 1, making Layer 2 essential for cloud security compliance. Layer 3: Cloud vendor security solution Cloud security is a shared responsibility between the customer and the vendor, and today’s vendors include their own solutions, which must be integrated into the platform as a whole. For example, Microsoft’s Azure Firewall as a Service (FWaaS), a next-generation secure internet gateway, acts like a wall between the cloud itself and the internet. Layer 4: Third-party cloud security services Traditional firewall vendors, like solutions from Check Point (CloudGuard) and Palo Alto Networks (VM-Series), need to be integrated as well. These third parties create firewalls that stand between the public clouds and the outside world. They develop segmentation for the cloud’s inner perimeter like an on-premise network. This fourth layer is key for infrastructure built to defend against the most difficult hybrid cloud security challenges . Schedule a Demo Why AlgoSec AlgoSec Cloud offering provides application-based risk identification and security policy management across the multi-cloud estate. As organizations adopt cloud strategies and migrate applications to take advantage of cloud economies of scale, they face increased complexity and risk. Security controls and network architectures from leading cloud vendors are distinct and do not provide unified central cloud management. Cloud network security under one unified umbrella AlgoSec Cloud offering enables effective security management of the various security control layers across the multi-cloud estate. AlgoSec offers instant visibility, risk assessment, and central policy management , enabling a unified and secure security control posture, proactively detecting misconfigurations. Continuous visibility AlgoSec provides holistic visibility for all of your cloud accounts assets and security controls. Risk management Proactively detect misconfigurations to protect cloud assets, including cloud instances, databases, and serverless functions. Identify risky rules as well as their last usage date and confidently remove them. Tighten overall network security by mapping network risks to applications affected by these risks. Central management of security policies Manage network security controls, such as security groups and Azure Firewalls, in one system across multiple clouds, accounts, regions, and VPC/ VNETs. Manage similar security controls in a single security policy so you can save time and prevent misconfigurations. Policy cleanup As cloud security groups are constantly adjusted, they can rapidly bloat. This makes it difficult to maintain, increasing potential risk. With CloudFlow’s advanced rule cleanup capabilities, you can easily identify unused rules and remove them with confidence. Schedule a Demo Select a size What is cloud network security? How does cloud network security work? The benefits of cloud network security Cloud network security challenges Key layers for cloud security Why AlgoSec Get the latest insights from the experts 6 best practices to stay secure in the hybrid cloud Read more The enterprise guide to hybrid network management Read more Multi-Cloud Security Network Policy and Configuration Management Read more Choose a better way to manage your network

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. Dimension Data Enhances Delivery Of Managed Security Services With AlgoSec Organization DIMENSION DATA Industry Technology Headquarters Australia Download case study Share Customer
success stories "We were fortunate enough to get a double benefit from using AlgoSec in our environment — reducing costs to serve our clients, and expanding our service offerings" IT Solution Provider Streamlines and Automates Security Operations for Clients AlgoSec Business Impact Generate incremental revenue from new policy compliance management services Reduce cost of service for Managed Security Service offering Improve quality of service, assuring a direct and timely response to security issues Background Dimension Data, founded in 1983 and headquartered in Africa, provides global specialized IT services and solutions to help their clients plan, build, support and manage their IT infrastructures. The company serves over 6,000 clients in 58 countries and in all major industry verticals. Dimension Data serves 79% of the Global Fortune Top 100 and 63% of the Global Fortune 500. Challenge In an effort to bring greater efficiency and flexibility, Dimension Data Australia sought to apply security industry best practices and streamlined processes to its delivery methodology. Automation was identified as a key capability that would enable them to reduce service costs and increase quality of service. “The operational management of security infrastructure is quite labor intensive,” remarks Martin Schlatter, Security Services Product Manager at Dimension Data. “The principle reasons for automating managed services are reducing work time, freeing up people for other tasks, and leveraging expertise that is ‘built in’ the automated tool.” By doing this Dimension Data could offer better service to existing clients while expanding their client base. “Additionally, the increased appetite for the Managed Security Services offering has been fueled by an increasing focus on governance, risk management and compliance, and we are expected to deliver faster and more accurate visibility of the security and compliance posture of the network,” explains Schlatter. Solution Dimension Data selected the AlgoSec Security Management Solution as a part of their toolset to deliver their Managed Security Services, which include automated and fully integrated operational management of client security infrastructures. The intelligent automation at the heart of AlgoSec will enable Dimension Data’s team to easily and effectively perform change monitoring, risk assessment, compliance verification and policy optimization for their clients, and act upon the findings quickly. This includes getting rid of unused or obsolete rules in the policy, reordering rules to increase performance and identifying risky rules. Another key factor in the decision making process was the relationship between Dimension Data and AlgoSec. “AlgoSec was deemed most suitable to meet our delivery needs for Managed Services. We selected them for their specific technology fit, and flexibility to assist in growing our managed service business. The partnership element was eventually the overriding factor,” says Schlatter. Results With AlgoSec, Dimension Data is now able to deliver their clients a comprehensive view of the security posture of their network security devices. This is crucial to establishing a baseline understanding of a security network, which makes it possible to truly assess and remediate risks, errors and inefficiencies. The ability to automatically provide this type of information at the most accurate level provides a key competitive differentiator for the company and a large benefit for its clients. “The value-added contribution is saving time, in terms of automation,” remarked Schlatter. “We found a way to reduce costs by automating manual operational tasks. At the same time, we were fortunate enough to leverage AlgoSec to expand our service offerings, so we got a double benefit from using AlgoSec in our environment.” One of the major features of integrating AlgoSec into the Dimension Data solution is the ability to support multiple client domains from a single AlgoSec management console. “This scalable configuration has proven to be invaluable when managing multiple clients with complex multi-vendor, multi-device security environments,” says Schlatter. “It consolidates administrative tasks, cuts time and costs, and ensures proper administration and segregation of duties from our end.” AlgoSec enhances the Managed Security Services offerings by delivering comprehensive risk and compliance management. Dimension Data professionals can generate risk and audit-ready compliance reports in a fraction of the time and with much greater accuracy compared to traditional manual analysis. “Our clients who require ISO 27001 and PCI DSS accreditation have greatly benefitted from this,” said Schlatter. Schedule time with one of our experts

Gain comprehensive visibility and control over your network security with AlgoSec Firewall Analyzer. Simplify audits, optimize configurations, and enhance protection. AlgoSec Firewall Analyzer- See the whole picture Introduction Discover, identify, and map business applications and security policies – anywhere. With the industry’s app-centric perspective, you can now gain clear visibility into the security policies and the business applications that run your business — across your hybrid network. AlgoSec Firewall Analyzer enables you to stay on top of your security posture with continuous analysis and detection of risk and compliance gaps, allowing you to adapt quickly before an attack happens. Schedule a Demo Visualize your entire network Visualize the application connectivity and security policies across public clouds, private clouds and on-premises networks. A real-time network map provides a comprehensive view and connectivity flows of all firewalls, routers, switches, and more. Schedule a Demo Discover applications and services Never misplace an application on your network. Discover and identify your business applications and their network connectivity. Schedule a Demo Connect applications to security policy rules Firewall rules support applications or processes that require network connectivity to and from specific servers, users, and networks. With AppViz, associate the relevant business applications that each firewall rule supports, enabling you to review the firewall rules quickly and easily. Schedule a Demo Micro-segment successfully Define and enforce network segmentation throughout your hybrid network. Be confident that your network security policies don’t violate your network segmentation strategy. Schedule a Demo Clear answers in clear language Get the answers to your network security policies in plain English. Use AlgoBot, an intelligent chatbot that assists with change management processes. Reduce ticket resolution time by giving other parts of your organization the tools they need to get immediate answers. Schedule a Demo Always be compliant Identify compliance gaps across your entire hybrid network, so you can stay continuously in compliance. Identify exactly which application and security policies are potentially non-compliant. Always be ready for audits with compliance reports covering leading regulations including PCI DSS, HIPAA , SOX, GDPR, NERC, FISMA, and ISO and custom corporate policies. Schedule a Demo Identify risky rules Identify risky security policy rules, the assets they expose, and if they’re in use. Prioritize risk based on what your business values most — the applications powering your network. Schedule a Demo Map, clean up and reduce risk Clean up and optimize your security policy. Uncover unused, duplicate, overlapping, or expired rules, consolidate and reorder rules, and tighten overly permissive “ANY” rules — without impacting business requirements. Schedule a Demo About AlgoSec AlgoSec, a global cybersecurity leader, empowers organizations to securely accelerate application delivery by automating application connectivity and security policy, anywhere. The AlgoSec platform enables the world’s most complex organizations to gain visibility, reduce risk, and process changes at zero-touch across the hybrid network. Over 1,800 of the world’s leading organizations trust AlgoSec to help secure their most critical workloads across public cloud, private cloud, containers, and on-premises networks, while taking advantage of almost two decades of leadership in Network Security Policy Management. See what securely accelerating your digital transformation, move-to-cloud, infrastructure modernization, or micro-segmentation initiatives looks like at www.algosec.com . Let's start your journey to our business-centric network security. Schedule a Demo Select a size Introduction Visualize your entire network Discover applications and services Connect applications to security policy rules Micro-segment successfully Clear answers in clear language Always be compliant Identify risky rules Map, clean up and reduce risk About AlgoSec Get the latest insights from the experts Choose a better way to manage your network

Learn from expert-crafted firewall ruleset examples and best practices. Optimize your security posture with actionable guidance and improve your firewall configurations. Firewall ruleset examples & policy best practices Securing your network: guide to firewall rules examples Cyberattacks continue to rise globally as malicious actors tirelessly develop sophisticated tools and techniques to break through networks and security systems. With the digitalization of operations today and the increasing adoption of remote working, crucial business activities such as communication, data storage, and data transmission are now primarily done digitally. While this brings numerous advantages – allowing easy usability and scalability, enhancing collaboration, and reducing the risks of data loss – businesses have to deal with various security risks, such as data breaches and cyberattacks from hackers. Organizations must provide adequate network security to keep sensitive data safe and ensure their network is usable, trustworthy, and optimized for maximum productivity across all channels. Schedule a Demo Firewalls and your network Your network and systems (software and hardware) comprise the IT infrastructure through which you operate and manage your enterprise’s IT services. Every IT system regularly receives and transmits internet traffic, and businesses must ensure that only trusted and authorized traffic penetrates their network to maintain security. All unwanted traffic must be prevented from accessing your operating system as it poses a huge risk to network security. Malicious actors attempting to penetrate your system often send virus-carrying inbound traffic to your network. However, with an effective firewall, you can filter all traffic and block unwanted and harmful traffic from penetrating your network. A firewall serves as a barrier between computers, networks, and other systems in your IT landscape, preventing unauthorized traffic from penetrating. Schedule a Demo What are firewall rules? The firewall is your first line of defense in network security against hackers, malware, and other threats. Firewall rules refer to access control mechanisms that stipulate how a firewall device should handle incoming and outgoing traffic in your network. They are instructions given to firewalls to help them know when to block or allow communication in your network. These instructions include destination or source IP addresses, protocols, port numbers, and services. A firewall ruleset is formed from a set of rules and it defines a unit of execution and sharing for the rules. Firewall rulesets typically include: A source address A source port A destination address A destination port A decision on whether to block or permit network traffic meeting those address and port criteria Schedule a Demo What are the most common firewall ruleset examples? There are thousands of rulesets that can be used to control how a firewall deals with network traffic. Some firewall rules are more common than others, as they tend to be fundamental when building a secure network. Here are some examples of firewall rules for common use cases: Enable internet access for only one computer in the local network and block access for all others This rule gives only one computer in the local network access to the internet, and blocks all others from accessing the internet. This example requires obtaining the IP address of the computer being granted access (i.e., source IP address) and the TCP protocol type. Two rules will be created: a Permit rule and a Deny rule. The permit rule allows the chosen computer the required access, while the deny rule blocks all other computers in the local network from internet access. Prevent direct access from the public network to the firewall This rule blocks access to your firewall from any public network, to protect it from hackers who can modify or delete your rules if they access your firewall directly. Once hackers manipulate your rules, unwanted traffic will penetrate your network, leading to data breaches or an interruption in operation. A Deny rule for any attempt to access the firewall from public networks will be created and enabled. Block internet access for only one computer in the local network This rule comes in handy if you do not want a specific computer in the local network to access the internet. You will need to create a Deny rule in which you set the IP address of the computer you wish to block from the internet, and the TCP protocol type. Block access to a specific website from a local network In this scenario we want to configure our firewall to deny access to a particular website from a local network. We first obtain the IP address or addresses of the website we wish to deny access to, and then create a Deny rule. One way to obtain a website’s IP address is by running the special command ‘nslookup ’ in your operating system’s command line (Windows, Linux, or others). Since websites can run on HTTP and HTTPS, we must create a Deny rule for each protocol type and indicate the destination IP address(es). Thus, the local network will be unable to access both the HTTP and HTTPS versions of the website. Allow a particular LAN computer to access only one specific website This example gives a local computer access to only one specified website. We obtain the IP address of the destination website and the source IP address (of the local computer). We create a Permit rule for the source IP address and the destination website, and a Deny rule for the source IP address and other websites, taking the TCP protocol types into account. Allow internet access to and from the local network using specific protocols (services) only This example allows your LAN computer to access the internet using specific protocols, such as SMTP, FTP, IPv6, SSH, IPv4, POP3, DNS, and IMAP; and blocks all other traffic Here we first create an “Allow” rule for the “Home segment,” where we use the value “Any” for the Source and Destination IP addresses. In the Protocol field provided, we choose the protocols through which our local computer can access the internet. Lastly, we create Deny rules where we enter the value “Any” for the Source and Destination IP addresses. In the Protocol field, we set the values TCP and UDP, thus blocking internet access for unspecified protocols. Allow remote control of your router This rule enables you to access, view, or change your Router Settings remotely (over the internet). Typically, access to routers from the internet is blocked by default. To set this rule, you need specific data such as your router username, WAN IP address, and password. It is crucial to note that this setting is unsafe for individuals who use public IP addresses. A similar use case is a rule enabling users to check a device’s availability on their network by allowing ICMP ping requests. Block access from a defined internet subnet or an external network You can set a rule that blocks access to your network from a defined internet subnet or an external network. This rule is especially important if you observed repeated attempts to access your router from unknown IP addresses within the same subnet. In this case, set a Deny rule for IP addresses of the subnet attempting to access your WAN port. Schedule a Demo What are examples of best practices for setting up firewall rules? It is expedient to follow best practices during firewall configuration to protect your network from intruders and hackers. Deploying industry-standard rules when setting up firewalls can improve the security of your network and system components. Below are examples of the best practices for setting up firewall rules. Document firewall rules across multiple devices Documenting all firewall rule configurations and updating them frequently across various devices is one of the best practices for staying ahead of attacks. New rules should be included based on security needs, and irrelevant rules should be deactivated to reduce the possibility of a loophole in your network. With documentation, administrators can review the rules frequently and make any required changes whenever a vulnerability is detected. Configure your firewall to block traffic by default Using a block or deny-by-default policy is the safest way to deal with suspicious traffic. Enterprises must be sure that all types of traffic entering their network are identified and trusted to avoid security threats. In addition, whenever a vulnerability arises in the system, blocking by default helps prevent hackers from taking advantage of loopholes before administrators can respond. Monitor firewall logs Monitoring firewall logs on a regular basis helps maintain network security. Administrators can quickly and easily track traffic flow across your network, identify suspicious activity, and implement effective solutions in a timely manner. Organizations with highly sophisticated infrastructure can aggregate logs from routers, servers, switches, and other components to a centralized platform for monitoring. Group firewall rules to minimize complexity and enhance performance Depending on the complexity of your network, you may need thousands of rules to achieve effective network security. This complicates your firewall rules and can be a huge challenge for administrators. However, by grouping rules based on similar characteristics like protocols, TCP ports, IP addresses, etc., you simplify them and boost overall performance. Implement least-privileged access In any organization, employees have various roles and may require different data to execute their tasks efficiently. As part of network security practices, it’s important to ensure each employee’s access to the network is restricted to the minimum privileges needed to execute their tasks. Only users who require access to a particular service or resource should have it, thus preventing unnecessary exposure of data. This practice significantly minimizes the risk of intentional and accidental unauthorized access to sensitive data. Schedule a Demo How do firewall policies differ from a network security policy? A network security policy outlines the overall rules, principles, and procedures for maintaining security on a computer network. The policy sets out the basic architecture of an organization’s network security environment, including details of how the security policies are implemented. The overall objective of network security policy is to protect a computer network against internal and external threats. Firewall policies are a sub-group of network security policies, and refer to policies that relate specifically to firewalls. Firewall policies have to do with rules for how firewalls should handle inbound and outbound traffic to ensure that malicious actors do not penetrate the network. A firewall policy determines the types of traffic that should flow through your network based on your organization’s network and information security policies. Schedule a Demo How can AlgoSec help with managing your firewall rules? Proper firewall configuration with effective rules and practices is crucial to building a formidable network security policy. Organizations must follow industry standards in configuring firewall rules and protecting their IT landscape from intruders and malicious actors. Firewall rules require regular review and update to maintain maximum protection against evolving threats and changing security demands. For many organizations, keeping up with these fast-paced security demands can be challenging, and that’s where AlgoSec comes in. AlgoSec helps with managing your firewall rules to ensure your network enjoys round-the-clock protection against internal and external security threats. From installation to maintenance, we assist you in setting up a resilient firewall that operates on the safest rulesets to keep your network safe against harmful traffic. We have dedicated tools that take away the burden of aggregating and analyzing logs from the components in your network, including computers, routers, web servers, switches, etc. We determine which new rules are needed for effective firewall network security policy management based on data from your firewall devices and security trends. AlgoSec will ensure your firewall stays compliant with best practices by applying our automated auditing solution, which identifies gaps in your firewall rules and enables you to remediate them before hackers take advantage of such loopholes. Schedule a Demo Select a size Securing your network: guide to firewall rules examples Firewalls and your network What are firewall rules? What are the most common firewall ruleset examples? What are examples of best practices for setting up firewall rules? How do firewall policies differ from a network security policy? How can AlgoSec help with managing your firewall rules? Get the latest insights from the experts Use these six best practices to simplify compliance and risk White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure Solution overview See how this customer improved compliance readiness and risk Case study Choose a better way to manage your network

Automate and secure network policy changes with AlgoSec FireFlow. Streamline workflows, ensure compliance, and reduce risks in your security environment. AlgoSec FireFlow – Automate and secure policy changes Overview Leverage intelligent automation to confidently automate your security policy change process — from planning through risk analysis, implementation and validation Process security policy changes in a fraction of the time so you can respond to business requirements with the agility they demand. Using its unique vendor-agnostic deep algorithm for change management intelligent automation, AlgoSec FireFlow enforces firewall policies and application connectivity, eliminating guesswork, preventing human errors, and substantially reducing exposure to security risks to adapt quickly before an attack happens. Schedule a Demo Zero-touch change management Accelerate security policy changes while maintaining control, ensuring accuracy, saving time, and preventing errors — with zero-touch. Speed up and secure application deployment Make changes securely with AppChange, an add-on for AlgoSec FireFlow. With AppChange, changes are made at the business application level, including during application migrations , server deployment, and decommissioning projects. Save time by identifying devices that are in the way Automatically identify devices that are blocking connectivity flow, so you know what rules need to change. Design smart security policies Intelligently design existing rules and objects to reduce clutter and complexity. Mitigate risk Make sure your changes don’t introduce risk or compliance violations. Automatically analyze every proposed change before it’s implemented to identify risks and make sure they are compliant. Make changes exactly as intended Detect unauthorized change requests before implementation. Validate that changes were successfully applied and tickets not prematurely closed. Integrate with your existing processes Don’t change the way you work – use the tools you already know. Seamlessly integrate with your favorite IT Service Management solution. Schedule a Demo About AlgoSec AlgoSec, a global cybersecurity leader, empowers organizations to securely accelerate application delivery by automating application connectivity and security policy, anywhere. The AlgoSec platform enables the world’s most complex organizations to gain visibility, reduce risk, and process changes at zero-touch across the hybrid network. Over 1,800 of the world’s leading organizations trust AlgoSec to help secure their most critical workloads across public cloud, private cloud, containers, and on-premises networks, while taking advantage of almost two decades of leadership in Network Security Policy Management. See what securely accelerating your digital transformation, move-to-cloud, infrastructure modernization, or micro-segmentation initiatives looks like at www.algosec.com . Schedule a Demo Select a size Overview Zero-touch change management About AlgoSec Get the latest insights from the experts Choose a better way to manage your network

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Protect and manage hybrid network environments with effective security strategies, ensuring seamless integration, visibility, and compliance across diverse infrastructures. Securing & managing hybrid network security Overview Across cloud, SDN, on-premises and anything in between – one platform to manage it all. Making changes was easy with on-premises data centers. Your applications were secured behind lock and key, guarded by physical firewalls in easily-accessible locations. Today, your network doesn’t just live in one place. There are multiple public clouds and private clouds in addition to on-premises network devices. Security controls are a “black box” and your application connectivity crosses multiple borders. This complexity makes it difficult for organizations to securely accelerate application connectivity across their entire network. Schedule a Demo Main Challenges of Hybrid Cloud Security IT and Security staff find it difficult to maintain hybrid network security and deliver application connectivity due to: Lack of network and application visibility – Struggling with visibility into their network’s security policies and associated applications. Understanding the network structures and application flow paths is a challenge. Manual and siloed compliance process – The security audit process is manual. Documentation requirements are complex. Getting a complete view of the compliance status of the entire network is difficult. Audits are point-in-time but regulations require continuous compliance. Potential for network risks – Difficulty in identifying risky rules, such as unused, duplicate, overlapping, or expired rules, and understanding which applications may be impacted. Removing the wrong rule may lead to a data breach or outage. Complex manual change processes – Making changes to application connectivity is slow. Assessing the risk of changes is difficult, yet misconfigurations can cause outages and disrupt business. Changes involve teams speaking different languages with different objectives. Schedule a Demo Key Business Benefits Securely deliver applications faster. Enhance visibility across your entire hybrid network. Ensure changes adhere to internal and regulatory standards. Manage security posture and reduce configuration risks. Process network security policy changes in minutes not days. Avoid errors, rework, and application outages. Schedule a Demo AlgoSec Advantages Visibility into the applications on your network, so you can request changes at the application level. Unified view of the entire on-premises and multi-cloud estate from a single console. Manage multiple layers of security controls and proactively detect misconfigurations. Minimize the attack surface by identifying risks and helping to mitigate them. Match network policy risks to your applications to better understand the impact and prioritize remediation. Identify unused security rules so you have the confidence to remove them. Schedule a Demo Manage the Entire Hybrid Security Environment The AlgoSec platform helps organizations securely accelerate application delivery by automating application connectivity and security policy across the hybrid network estate, including public cloud, private cloud, containers, and on-premises networks. Enable application visibility — Get a full network map of your entire hybrid network security estate. Ensure application discovery across your entire estate and identify your application dependencies. Manage next-generation security policies and cloud security groups alongside traditional firewalls. Get instant visibility of your cloud assets and security controls. Pinpoint and troubleshoot network connectivity issues. Mitigate risks and detect misconfigurations – Easily identify risky security policy rules, the assets and applications they expose, and whether they are in use. Proactively detect misconfigurations to protect cloud assets, including cloud instances, databases, and serverless functions. Achieve continuous compliance – On-going monitoring of multi-cloud and hybrid cloud network-security configuration changes to avoid compliance violations. Identify which applications introduce compliance risk. Automated and audit-ready compliance reports for major global regulations and internal standards. Automate changes intelligently – Cut application delivery bottlenecks with intelligent application change automation. Using zero-touch automation, security policies can be automated from implementation all the way through validating that the changes work exactly as intended. Migrate applications easily – Simplify the complex process of migrating business applications by automatically discovering, mapping, and migrating connectivity configurations with firewalls and security groups. Identify flows serving your applications and track them to security policy. This makes it possible to enable network provisioning as part of your cloud migration. Schedule a Demo About AlgoSec AlgoSec, a global cybersecurity leader, empowers organizations to securely accelerate application delivery by automating application connectivity and security policy, anywhere. The AlgoSec platform enables the world’s most complex organizations to gain visibility, reduce risk, and process changes at zero-touch across the hybrid network. Over 1,800 of the world’s leading organizations trust AlgoSec to help secure their most critical workloads across public cloud, private cloud, containers, and on-premises networks, while taking advantage of almost two decades of leadership in Network Security Policy Management. See what securely accelerating your digital transformation, move-to-cloud, infrastructure modernization, or micro-segmentation initiatives looks like at www.algosec.com . Let's start your journey to our business-centric network security. Schedule a Demo Select a size Overview Main Challenges of Hybrid Cloud Security Key Business Benefits AlgoSec Advantages Manage the Entire Hybrid Security Environment About AlgoSec Get the latest insights from the experts Choose a better way to manage your network