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~/Security
Networking
To design and configure a firewall on a server
To design and configure a firewall on a server using Cisco Packet Tracer. Also involves testing correct configuration/ruleset.
Designing and configuring a DHCP server using Cisco Packet Tracer
We will be using Cisco Packet Tracer to create a network topology map consisting of a few PCs, and a server system to act as a DHCP server
Studying Linux and Windows network commands
Taking a look at Linux and Windows network commands. [ping, pathping, ipconfig/ifconfig, arp, netstat, nbtstat, nslookup, route, traceroute/tracert, nmap, etc]
Creating a network topology map using Cisco Packet Tracer
Setting up a small network of a few network and end devices using Hubs/Switches. It includes configuring LAN Cards, interfaces, preparation of cables, assigning IP addresses, and checking the connection of the network, all done in Cisco packet tracer, a network topology mapper.
Networking Basics
Routers(and setup), switches, identifying devices on a local network, troubleshooting, ICMP, using the ping utility
The OSI and TCP/IP Models, packet capture with Wireshark
IP addressing
IP addresses-public and private, LAN, subnetting, DHCP servers
MAC addresses, ARP and ARP spoofing
DNS, nslookup, DNSSEC and OCSP
Exploring the Domain Name System, using nslookup, DNS cache poisoning, DNSSEC and OCSP stapling
How the Web Works, HTTP Request/Response Cycle
HTTP/HTTPS-methods, status codes, URLs, tracking a GET request and the response
Also talking briefly about HTTP headers, and session keys, cookies
netstat
Exploring netstat, and how we could use this as a diagnostic tool when troubleshooting or monitoring networks
hping3
Setting up a DoS attack on a system or network, and experimenting with additional modes with hping
traceroute
Using the traceroute utility to inspect the route of a packet sent across networks. Additionally, covers how we could use this as a diagnostic tool