Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Kerry Cordero
JoinedMay 2, 2023
Articles667
20+ years of experience and proven performance in large scale enterprise network infrastructure architecture, design, implementation, migration, security, operation, troubleshooting, leading/managing teams, and budgets. I have a BS in Cybersecurity and a Master's from the University of Florida.
Security

Cisco ASA VPN Tunnel Encaps Decaps

If you look below, you can see going over a tunnel that the decaps are at 0 and the encaps...
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Routing & Switching

Cisco HSRP Tracking

HSRP Tracking is pretty easy to do. You have several options as you’ll see below....
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VOIP

QoS Standards and Guidelines with Avaya and Cisco

Definitions COS: Layer 2 marking comprised of a 3 bit field within the 802.1Q Frame. DSCP: Layer 3 marking comprised...
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Routing & Switching

Checking the RIB for RIP, OSPF, EIGRP, BGP, & IS-IS

RIP – “sh ip rip database” OSPF – OLD > “sh ip ospf database” NEW > “sh ip ospf rib...
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Security

Cisco ASA Netflow Configuration

flow-export destination inside [SERVER IP ADDRESS] 9996 or 2055 flow-export template timeout-rate 1 flow-export delay flow-create 60 access-list NETFLOW_EXPORT_ACL extended...
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Servers

ACS v5 should query desired Domain Controllers

Here’s a good command to see which DC the ACS server is querying:...
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Routing & Switching

Cisco Router Viewing Crash Files

Contents of the Crashinfo File The crashinfo file contains this information: *limited error message (log) and command history *description of...
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Laptops & DesktopsRouting & SwitchingSecurity

Saving Cisco Configurations Using Putty and Removing -more-

When saving device configurations using PuTTY, you’ll got a lot of –more–’s in the configuration file and it’s annoying. To...
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Security

Cisco ASA AnyConnect SSL VPN with Hairpinning and ONE Public IP for Web Servers

In this post I am configuring AnyConnect SSL VPN Users access to a remote location that happens to be configured...
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Security

Cisco ASA Failover Configuration

For this configuration, I am assuming you already have the Primary ASA configured and working. I’m also assuming the Secondary...
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  • Home
  • About
  • Disclaimer
  • Guides and Slides
    • AWS Well-Architected Framework
    • Facebook – Running BGP in the Data Center at Scale
    • Microsoft – Experiences with BGP in Large Scale Data Centers
    • Palo Alto PCNSE Study Guide
  • IP Calculator
  • Links
  • Contact

Categories

  • AI
  • Business Management
  • Cloud
  • Code
  • Data Center
  • Laptops & Desktops
  • Load Balancing
  • Routing & Switching
  • Security
  • Servers
  • Uncategorized
  • VOIP
  • Wireless

Tags

Active Directory (AD) AWS Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack DDOS Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting Microsoft IIS Microsoft SQL Microsoft Windows Okta OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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