Your network is vulnerable to unauthorized access. How can you protect it with firewall hardware?

To ensure effective firewall performance, the engineer or team operating the device must make sure that: - All traffic is denied by default, allowing only what is necessary. -Stateful packet inspection is enabled, monitoring the state of active connections and making decisions based on the context of the traffic (heuristic packet analysis). - Logs are regularly reviewed to identify suspicious patterns or potential security incidents.

Evaluate costs versus the features you need and your budget Choosing a firewall that fits well into your intended budget is all good. Keep in mind though, that a system that costs less now but doesn’t have all the features you require or isn’t future-proofed (for whatever you may need later on), could end up being a more expensive option in the long run.

The most important thing, is to understand the business requirements and then architect your firewall and its security features. Prepare security use-cases against each business requirements and evaluate the firewalls. (After all, your aim is to protect business goals.) For the best success result, it is always recommended to conduct PoC to get more confidence and assurance of product capabilities. One more point: make sure you engage with the right service provider with technical support whenever required if you do not have in-house expertise.

Um firewall de rede é sempre uma boa op??o para prote??o de redes corporativas. Ainda mais importante é a configura??o correta desse firewall, permitindo apenas conex?es necessárias às atividades da organiza??o. Um NG Firewall, pode auxiliar também na realiza??o de inspe??o de antivírus e IPS em conex?es permitidas.

Pour le choix du pare-feu il est important également de s'assurer de comprendre les fonctionnalités offertes et de les adapter à votre infrastructure .Pour le choix nous pouvons toujours se référer sur la classification des différents catégories de l'organisme Magic Gartener cela pourra nous faciliter egalement le choix.

Make sure you have the right throughput with all security features activated even if you don’t use them all at the moment. It’s better to plan a failover scenario when you are installing your firewalls

ensuring the correct installation and correct wiring is a phase that cannot be avoided as well as redundant power supply and data center air conditioning.

il est important de configurer les pare-feu en fonction de nos besoins de sécurité il y'a énormes de fonctionnalités et de service offert dans un pare feu les activer toutes revient à ralentir considérablement le débit de l'infrastructure. Le mode d'analyse des paquets également est à prendre en compte en fonction du choix des fonctionnalités.

During the installation, it's important to label the firewall ports or the different segments of the network, such as the Internal or LAN port, Internet or WAN or DMZ port), using cable colors for the different segments helps to troubleshoot later, and take photos of the setup for documentation. Lastly, have a way to access or manage the firewall using an out-of-band port or management console.

* When placing a physical firewall on your computer network, make sure that it's securely tight when putting it in a rack mount. * Make sure that you have all of the proper cables that you need to connect it to your computer network. As well as adequate space for ventilation so it doesn't overheat. * If you're installing a virtual firewall, then make sure that your computer network system is compatible with virtual firewall and apply the necessary configuration for your company. * Do proper testing before putting the firewall into a production environment as well.

Firewall configurations and rules can become unwieldy over time. I absolutely recommend defining your configurations as code (terraform, ansible, etc.). This will allow for easier scalability and review.

Decide what's allowed and what's not. It's like making a list of who can come in and who needs to stay out. Set the rules: Tell your firewall who's allowed in and what they can do. Imagine giving the bouncer a list of authorized guests and what they're allowed to bring in. Close unused ports: Think of ports as doors in your network wall. Close any doors you're not using to prevent unwanted entry. Block suspicious protocols: Protocols are like languages your data speaks. Block languages used by malware and hackers to keep them out. Keep it updated: Regularly update your firewall software and firmware to patch vulnerabilities, just like giving your security guard the latest training and equipment.

Your firewall might also have special features like logging activity, encrypting data, verifying user identity, and detecting suspicious activity. Remember, as your network and security requirements change, so should your firewall rules. Regularly reviewing and updating these rules is crucial to maintaining robust network security.

Para proteger sua rede contra acesso n?o autorizado, recomendo a implementa??o de um hardware de firewall robusto. Certifique-se de configurar regras de firewall adequadas, atualizar regularmente as defini??es de seguran?a e monitorar o tráfego da rede para identificar atividades suspeitas. Além disso, considere usar criptografia para dados sensíveis e manter senhas fortes para dispositivos e acesso à rede. Senhas fortes é ponto crucial para uma seguran?a eficaz.

* Look over the manual making sure that you have everything you need. * Make sure that you do all of the necessary updates for the firewall to work properly such as firmware, software security patches, etc. * Configure the firewall to your company's standards block all ports that is not needed. Define what ports need to be kept open for computer network traffic. * Have the proper login credentials. * Configure the rules, create different filters, protocols, etc.

Maintaining the firewall: * Always a backup copy of the firewall configuration. Just in case something happens such as: defective hardware, factory restore, etc. * Make sure that you do performance test on it. Check to see for any updates that might need to be applied. Make sure that you do this offline or during non-working hours.

Once you have successfully implemented the firewall in the network, it is equally important to maintain the firewall by monitoring its health status, configuration changes, open vulnerabilities, etc. It is good practice to track all the changes through the change management process.

Dentro del mantenimiento del firewall, se deberian considerar *Modificaciones de reglas *Actualizaciones de Firmware *Actualizaciones de seguridad *Monitoreo de enlaces, logs y funcionamiento general

Regular check-ups ensure it's always ready to protect. Like our phone needs updates, your firewall does too. Keep it fresh with the latest software. Monitor logs: Regularly check the firewall logs to see who's trying to get in and what they're doing. Think of it as reviewing the security footage to spot any suspicious activity. Test and refine: Regularly test your firewall rules and adjust them as needed. It's like running security drills to make sure your defenses are strong.

To maintain the firewall secure and optimise following best practices should be carried out. 1. Regularly update and patch firewall software to address vulnerabilities and enhance overall security. 2. Implement a strong rule set, allowing only necessary traffic and blocking unnecessary services to minimize potential attack surfaces. 3. Enable logging and monitoring to track firewall activities, helping identify potential security incidents and providing valuable insights for optimization.

Firewalls come in many shapes, sizes, and flavours. They have many differing capabilities, but ultimately firewalls are only a part of the solution. You've likely heard the "crunchy on the outside, chewy on the inside" (like an armadillo, if you're from around my parts, and of a certain age). If an attacker can get past your border guard, there's a pretty good chance that they're going to have a field day once they're on the inside. EDR/XDR on the endpoints (you're protecting your servers too, right?), well scoped and enforced RBAC, bastion access to management interfaces, logging, and monitoring of those logs in a SIEM or SOAR tool, robust backup tooling for when things go south, and an assume breach mindset will set you in good stead.

A firewall is like a digital security guard. It stops the bad stuff from getting in. Follow these steps, and your network will be safer than ever. Security is not a one-time job – it's like watering a plant; you've got to do it regularly for the best results. Stay safe out there!

And it’s not just a firewall that you need here. But you need to look at ALL of the security policies and ACLs that you have in your network. Your routers, your switches, your load balancers and your cloud all have them and there are many more places they exist. Keeping these up-to-date and in sync isn’t easy but it’s worthwhile.

The firewall will stop any thing that we did not want to get in to our network, but it is not the only perimeter that we can rely on. Because, with this solution you will only able to stop something on the network layer, you need to carefully define the configuration on the firewall. Block any and whitelist what you want to come in or come out from the network. For better coverage of vulnerability, maybe you need to review the virtualpatching solution. and ensure you have a good policy for patching so you have a better control on vulnerability.

Monitorar os logs: é importante ingerir os logs da solu??o de firewall em alguma solu??o de SIEM em que seja possível correlacionar eventos, gerar alertas e a partir disso acionar as equipes envolvidas no gerenciamento da solu??o. Além disso, em alguns casos, é interessante o uso de uma ferramenta SOAR que possa através de correla??o feitas pelo SIEM executar comandos automaticamente para algumas situa??es criticas, nos casos em que uma comunica??o de fato deve ser bloqueada imediatamente. Devemos ter cuidado com as ferramentas SOAR, as a??es destas precisam ser avaliadas e testadas para evitar paradas no ambiente.