Any organization needs security and principles to guide its employees and protect against human errors. This highly recommends because it can help safeguard against adversaries and help create a healthy, secure posture for the organization.
Traffic on a firewall can be either:
Default configurations can be dangerous. Because firewalls could not get properly configured, allowing all traffic to go in and out.
To secure routers, use passwords and different hostnames, so routers cannot get reconfigured without authorization. By using strong passwords on routers, we can ensure the integrity of the network. Using the system out of the box is a bad security practice. If malicious users have access to the router, they can redirect the traffic to other systems.
Secure Router Management makes them secure before deployment of them in the organization’s network. Any malicious person can do a simple internet search on the same product and find the standard login credentials to log in to routers. Firmware updates should get checked regularly. Manufacturers update the firmware as security patches are applied.
This section will examine some specific network security measures. In doing the use of generic products as well as different types of tunneling and endpoint security measures the security architect needs to be familiar with will be discussed.
Rather than analyzing packet IP addresses or other criteria, content filtering analyzes the content of packets to determine whether they should be blocked or allowed., rather than its IP address or other criteria.
The most prominent use of content filtering is in programs that operate as add-ons to Web browsers or at a corporate gateway, blocking unacceptable messages that might be pornographic or racist. In an email environment, the use of content filtering is designed to place email advertisements and similar types of junk mail based on subject, content, or both in a spam folder that most people ignore.
Anti-malware software can be considered as a special type of content filter. However, instead of examining the content of packets for pornography, racist remarks, and similar content, this
software is focused on detecting:
Once detected, the antimalware software will, based on its configuration, either block the packets or quarantine them. Often, antimalware is sold as a virus-checking system that operates on a separate email server in a corporate environment and checks for a variety of potentially malicious software.
It is a list that shows which users are on the network and configures if they have access or what they should be able to. It also configures what capability devices have to access the network and what actions they can carry out.
Logical and physical security want to lock devices to restrict physical access to ports. Locking rooms so everyone can access the system and connect them to ports. Get can disable ports in the BIOS. If ports are left open, malicious people could use them to exploit them.
This is a port-based authentication standard. Make sure ROGE devices cannot connect to the network. Anyone that wants to make use of the network needs to get authenticated to use the network. It gets used to secure the network, so not everyone can plug in a router and start monitoring network traffic.
It can be a standalone device or built into the firewall. There are different types of flood guards.
Some malicious persons can overwhelm the servers with too many requests. It causes a Denial of Service (DoS) attack. This attack will ensure that legitimate traffic will not reach the server by flooding it with illegitimate traffic.
The Spanning Tree Protocol (STP). Our network should not contain loops.
All traffic, unless explicitly allowed, should be allowed. Everything should be detected. If it is suspicious, it will get denied.
Check what is failing, what is booming, and what access is successful good practice. Logs tell what is happening. What is happening? Could infer what happens in the future. Alert on a priority basis. The incident occurred when no one was there. Some solutions alert on specific logs that are in the priority.
One device manages all threats and does everything. Firewall intrusion detection. The business has a single point of failure (SPOF).