Archive

This archive preserves historical content including certification study notes for various IT certifications and technical topics that were relevant at the time of writing.

Technical Topics

  • Networking Fundamentals
  • Linux System Administration
  • Cisco Technologies
  • Security Concepts

Archived Posts

IPv4 Subnetting Made Easy ARCHIVED

October 29, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

Virtual LAN's and Trunks ARCHIVED

August 4, 2010

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

VLAN Trunking Protocol ARCHIVED

July 27, 2010

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

OSI and TCP/IP Layer Models ARCHIVED

June 4, 2009

📚 Archived Content: This post is part of my historical study notes archive from 2009. While the fundamental concepts remain relevant, some specifics may be outdated. For current technical content, visit the Technology section.

MPLS Control and Data Plane Cheat Sheet ARCHIVED

December 8, 2014

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

Connecting Your Virtual IOS-XE and IOX-XR Lab To Your Physical Lab ARCHIVED

October 1, 2014

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

OSPF Area Types and LSA's ARCHIVED

April 11, 2014

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

IOS-XR (XRv) and IOS-XE (CSR1000v) KVM Config Generation ARCHIVED

April 5, 2014

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

CCNP - Service Provider - SPROUTE ARCHIVED

April 4, 2014

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

Layer 3 LAN Switching ARCHIVED

August 8, 2010

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

LAN Switching Layer 3 Redundancy Protocols ARCHIVED

August 8, 2010

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

Virtual LAN's and Trunks ARCHIVED

August 4, 2010

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

VLAN Trunking Protocol ARCHIVED

July 27, 2010

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

SELinux - Listing Available Contexts ARCHIVED

October 29, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: SSH and NTP ARCHIVED

October 27, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: SMTP ARCHIVED

October 27, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: HTTP ARCHIVED

October 27, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: FTP ARCHIVED

October 26, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: DNS ARCHIVED

October 26, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Configure the service to start when the system is booted. ARCHIVED

October 25, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Configure SELinux to support the service. ARCHIVED

October 25, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Remote Logging ARCHIVED

October 24, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Produce and deliver reports on system utilization ARCHIVED

October 24, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Build a simple RPM that packages a single file. ARCHIVED

October 24, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Use /proc/sys and sysctl to modify and set kernel runtime parameters. ARCHIVED

October 16, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Configure a system as an iSCSI initiator that persistently mounts an iSCSI target. ARCHIVED

October 16, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 2 ARCHIVED

October 15, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Use iptables to implement packet filtering and configure network address translation (NAT): Part 1 ARCHIVED

October 12, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Series: Route IP traffic and create static routes ARCHIVED

October 10, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCE Exam Objectives ARCHIVED

October 7, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.

RHCSA Class Notes ARCHIVED

October 16, 2012

📚 Archived Content: This post is part of my historical study notes archive. While some concepts may remain relevant, the specific technologies, procedures, and certifications mentioned may be outdated. For current technical content, visit the Technology section.