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Troubleshooting

Laptops & DesktopsRouting & SwitchingServers

Test Jumbo Frames and MTUs with Ping

Jumbo Frames refer to Ethernet frames that carry a payload of up to 9000 bytes, instead of the standard 1500...
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Security

Palo Alto Test a Sample Malware File

Step 1: Download one of the malware test files. You can select from PE, APK, MacOSX, and ELF. If you...
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Security

Palo Alto URL Filtering Test Pages

Keep in mind, this information will be logged as well, so you can query your logs. Here is a list...
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Routing & SwitchingSecurity

Palo Alto – Display Port Information (media type, interface counter, speed/duplex, etc…)

There are two good commands to run:...
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Data CenterRouting & Switching

OSPF LSA Type Overview

CodeSecurity

API Troubleshooting

Troubleshooting an API issue involves understanding the specific problem, checking logs, examining request and response data, and more. Here are...
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Security

Palo Alto Test Policy Matches

Test a security policy rule: test security-policy-match application twitter-posting source-user cordero\kcordero destination 98.2.144.22 destination-port 80 source 10.200.11.23 protocol 6...
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Security

Palo Alto – SSL Decrypt Test Which Policy is Used CLI

Used the “test decryption-policy-match” command: corderoPA-A(active)> test decryption-policy-match source {SOURCE-IP} destination {DESTINATION-IP} Matched rule: 'Do Not Decrypt' action: no-decrypt...
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Data CenterRouting & Switching

Cisco ACI Troubleshooting

Routing & Switching

Cisco Router Fiber Optic Levels

Below is a way to check the Tx/Rx Optical power levels on a Cisco router. I have a post on...
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Active Directory (AD) API 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 Logging macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare
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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

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

Tags

Active Directory (AD) API 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 Logging macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare
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