Kerry CorderoKISS IT Design Principle - Human Error Prevention
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CloudData CenterRouting & SwitchingSecurityWireless

SNMP vs. Syslog: Understanding Traps, Polling, and When to Use Each

What Is SNMP? SNMP (Simple Network Management Protocol) is built for structured monitoring and device management. It works in two...
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Security

Palo Alto RMA Replacement

Palo Alto calls the new replacement FW a spare....
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Data CenterLaptops & DesktopsRouting & SwitchingSecurityServersWireless

SNMP Polling vs Traps

The difference between these is who is initiating the conversation. In Polling, the monitoring server is initiating the conversation asking...
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Security

Palo Alto Global Protect Client Software Not Upgrading

If you are trying to upgrade your Palo Alto GlobalProtect APP and notice it’s not getting upgraded, a good place...
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Data CenterLaptops & DesktopsRouting & SwitchingSecurityWireless

Wireshark Filters

URL http.host == “api.cordero.me” DNS dns.qry.name == “www.cordero.me” dns.qry.name matches “.cordero.me” dns.qry.name contains “cordero.me” TCP Flags tcp.flags.reset == 1 tcp.flags.push...
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Security

Cisco ASA VPN Filters

ACL looks like this: access-list VPN-FILTER permit {remote-IP} [remote-Port] {local-IP} [local-Port] Examples: LOCAL:              ...
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Security

Microsoft Cybersecurity Reference Architectures

Source:https://docs.microsoft.com/en-us/security/cybersecurity-reference-architecture/mcra...
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CloudData CenterRouting & SwitchingSecurityServers

AAA (Cisco Device and ISE Specific)

When discussing AAA (Authentication, Authorization, and Accounting) in the context of ISE (Identity Services Engine) and Cisco devices, it’s essential...
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Security

Python – Scan FQDNS, Get the Expiration, and Display Results

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will scan a text document "dr-dns.txt", get the SSL...
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Security

Most Common L2L and Remote Access IPsec VPN Troubleshooting Solutions

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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 Netflow 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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