Setting up a 2-in-1 VM for Labs using Windows Subsystem Linux (WSL)

I am currently preparing a Network Fundamentals training that I'll be presenting in June and as part of that, I need a VM that I can share with the participants as I'll be incorporating some hands-on exercises in my presentation. Instead of setting up two different machines, I opted to use a Windows 10 VM … Continue reading Setting up a 2-in-1 VM for Labs using Windows Subsystem Linux (WSL) →

Setting up an IPSec VPN using Cisco Packet Tracer

This week was a rather intense one. I offered to be a volunteer trainer for a Network Security Bootcamp whose aim was to provide practical experience to new graduates and prepare them for a job in the Network Security field. At the end of the course, the students are expected to pass several exams among … Continue reading Setting up an IPSec VPN using Cisco Packet Tracer →

Patching Cisco ACS 5.4

Current Status and version before patching acs100/admin# show application version acs Cisco ACS VERSION INFORMATION ----------------------------- Version : 5.4.0.46.0a Internal Build ID : B.221 acs100/admin# show application status acs ACS role: PRIMARY Process 'database' running Process 'management' running Process 'runtime' running Process 'ntpd' running Process 'view-database' running Process 'view-jobmanager' running Process 'view-alertmanager' running Process 'view-collector' … Continue reading Patching Cisco ACS 5.4 →

Citrix Netscaler 10 Summary Notes – Getting Started – Day 6

Load Balancing Overview Distributes client requests across multiple servers to optimize resource utilization Prevents bottlenecks Configuration: Define a virtual server that proxies multiple servers in a server farm Balance the load Provides traffic management from Layer 4 (TCP and UDP) through Layer 7 (FTP, HTTP, and HTTPS) Load balancing algorithms are used to determine how to … Continue reading Citrix Netscaler 10 Summary Notes – Getting Started – Day 6 →

CCDA 640-864 Summary Notes – Chapter 5 – Day 10

Exam Topic 2 - Part 1: Cisco Unified Wireless Network (UWN) Architecture Benefits: Deliivers scalable, manageable and secure WLANs Combines wired and wireless network Reduced Total Cost of Ownership (TCO) Enhanced visibility and control Dynamic RF management WLAN Security Mobility Enhanced productivity and collaboration Network Elements: Client devices access points - access to the network network … Continue reading CCDA 640-864 Summary Notes – Chapter 5 – Day 10 →

Citrix Netscaler 10 Summary Notes – Getting Started – Day 5

System Configuration slot/port VLANS Supports IEEE802.1Q VLANS Supported: Default VLAN = 1 PortBased VLAN Tagged VLAN (nsvlan) Link Aggregate Channels Channel parameters have precedence over the interface parameters Clock Clock synchronization is done in shell DNS Can Function as: Authoritative Domain Name Server (ADNS) DNS proxy server End Resolver Forwarder (typical config) Can add resource records such … Continue reading Citrix Netscaler 10 Summary Notes – Getting Started – Day 5 →

Citrix Netscaler 10 Summary Notes – Getting Started – Day 4

Citrix NetScaler Editions Feature licence required on all editions Standard Edition SME comprehensive L4-L7 traffic management Web application availability Enterprise Edition Advanced L4-L7 traffic management Web Application acceleration Increases Web application performance, availability and reduced costs Platinum Edition Reduces data center costs Accelerates application performance End to end visibility of application performance Advanced application security Administration options: … Continue reading Citrix Netscaler 10 Summary Notes – Getting Started – Day 4 →

CCDA 640-864 Summary Notes – Chapter 4 – Day 8

Exam Topic 4: Virtualization Overview Virtualization technologies abstract logical elements from hardware (applications or operating systems) or networks (LANs and SANs) and run them in a virtual state Allow a physical device to share its resources by acting as multiple versions of itself Allow multiple physical devices to logically appear as one Benefits of virtualization improves network efficiency provides enhanced flexibility … Continue reading CCDA 640-864 Summary Notes – Chapter 4 – Day 8 →

Citrix Netscaler 10 Summary Notes – Getting Started – Day 3

Understanding the NetScaler An Application L4-L7 Switch. Used for Web Applications. Functions as a TCP Proxy Features: Switching Features for optimal distribution of client requests Security and protection Features protects web applications from application-layer attacks Server-farm Optimization Features speeds up applications by offloading resource-intensive operations from the server Placement Request Switching Netscaler is deployed infront of a … Continue reading Citrix Netscaler 10 Summary Notes – Getting Started – Day 3 →

CCDA 640-864 Summary Notes – Chapter 4 – Day 7

Data Center Design Exam Topic 1: Enterprise DC Architectures Data Center 1.0 Centralized Used mainframes to process and store data Users used terminals to access and work on mainframes benefits: availability, resiliency, and service level agreements (SLA) Data Center 2.0 client/server and distributed computing into the mainstream data center Bussiness applications installed on servers users accessed data … Continue reading CCDA 640-864 Summary Notes – Chapter 4 – Day 7 →