Network Security Best Practices

Explore best practices for securing a network, including access control, encryption, and intrusion detection.

Network Security Best Practices  

Access Control  

Implementing ACLs  

Access Control Lists (ACLs) control network traffic and restrict unauthorized access. ACLs can be applied to router interfaces to filter traffic based on IP addresses and protocols.

# Example: Implementing an ACL
access-list 100 permit ip 192.168.1.0 0.0.0.255 any
interface GigabitEthernet0/1
 ip access-group 100 in

Encryption  

Using SSL/TLS  

Secure network communication with SSL/TLS. These protocols encrypt data in transit, ensuring that it cannot be read by unauthorized parties.

VPNs  

Virtual Private Networks (VPNs) create secure connections over the internet by encrypting data and tunneling it between networks.

Intrusion Detection  

Configuring IDS/IPS  

Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) monitor network traffic for suspicious activity. IDS alerts administrators to potential threats, while IPS actively blocks them.

Regular Audits  

Regular security audits and vulnerability assessments help identify and mitigate potential security risks.