We must be familiar with basic information security in CCNA. The CCNA Protection course covers all network security ideas required in small and midsize enterprises. This blog will look at three important network factors: our network’s security flaws, threats we may face, and some attacks. If you want to know about Network Security in CCNA, You can join CCNA Course in Chennai at FITA Academy.
These factors are described below.
Vulnerability
These are the vulnerabilities in the network. They could be the result of the technology being used, the setup of our devices, or poor or ineffective security policies. We must plan carefully for security in our connections and consider these factors. A comprehensive safety policy is essential for ensuring that information on our computer system is not obtained due to inadequate device security.
Threats
Anyone with the qualifications and desire to utilise any vulnerability is referred to as a threat to network security. These individuals and groups could be motivated by several factors, including money, power, and a desire for adventure. Regardless of intent, threats to network security pose major challenges to managers because they can gain access to sensitive or network-disabling data.
Attacks
Threats use these methods to gain access to the network. Many different attacks could be used to obtain access to our system. They may use techniques such as dumpster diving to target network infrastructure or social engineering to target users.
Securing the network
Security issues in networks are numerous and cannot be addressed in a particular chapter; the different methods attackers use to gain network access have major and far-reaching consequences, and in this course, we will concentrate on securing switches and routers. Get the best CCNA Course Online with certified Trainers at FITA Academy. Here, we offer the training with the recently updated syllabus for CCNA Course.
We look at some security measures:
- Physical security methods
- Passwords
- SSH
- Port security
Physical security
Physical threats to network devices are a major issue. Physical attacks may cripple an enterprise’s productivity due to an outage of network services. The four classes of physical threats are:
- Hardware threats – Network infrastructures, such as servers, routers, and switches, are damaged.
- Environmental threats – The following risks are associated with storing network services in inappropriate regions: Hardware may be exposed to extreme temperature changes or high humidity.
- Electrical faults – Because the device used in our networks is powered by electricity, any sudden change in the power source to the networking gear poses a significant risk.
- Maintenance threats – We must run maintenance reviews on our grid instruments from period to period. The use of unskilled technicians can pose a major hazard to network appliances.
It may be practically difficult to defend against some physical threats. For example, it’s possible that we can’t forecast earthquakes. However, by observing the following recommendations, we can successfully lower threats to the network hardware:
SSH (secure shell)
The most secure method is local access, but sometimes using the console port to access the network may not be an option. For instance, while travelling, you might need to troubleshoot a router.
Although managing attackers remotely is more practical, it can make systems vulnerable. For instance, a hacker may intercept packets containing the password if we utilise plaintext passwords.
Port security
Switch security requires port security. Unused ports can be exploited to attack the network, which makes them a serious security issue. Get in-depth knowledge through the CCNA Course In Bangalore with certified expert support.
Read more: WAN Connection Types in CCNA