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Packet Capture

Routing & SwitchingSecurity

HTTP2 and ALPN

When talking about ALPN, the thing to remember is that ALPN is a TLS extension negotiation protocol.  It’s a negotiator. ...
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Laptops & DesktopsServers

Packet Captures for Linux (tcpdump) and Windows (netsh trace)

SecurityServers

Linux Packet Captures with TCPDUMP

Security

Cisco ASA Packet Capture

Laptops & DesktopsSecurity

Microsoft Windows Built-in Packet Capture PKTMON (Older NETSH TRACE)

Yes, both Windows 10 and 11 include a built-in command-line tool for packet capturing named “Packet Monitor” or pktmon. It...
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Data CenterSecurity

TAP vs SPAN Ports

I’m going to write up a typical design I usually do and where I like to place the taps but...
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Data CenterLaptops & DesktopsRouting & SwitchingSecurityWireless

Wireshark Filters

URL: http.host == “api.example.com” 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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Routing & SwitchingSecurity

Cisco IOS-XE Packet Capture

Routing & SwitchingSecurity

Cisco IOS Packet Capture

On an IOS router (for example a 890, 1900, 2900. 3900, 7200 Series Router) there is a capability to capture...
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Active Directory (AD) AWS Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco Nexus Cisco Stack Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting Kali M&A macOS Microsoft IIS Microsoft SQL Microsoft Windows Netflow Okta OSPF Packet Capture Palo Alto Palo Alto CLI PCI PDF Planning Policy Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting VMWare
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Categories

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

Tags

Active Directory (AD) AWS Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco Nexus Cisco Stack Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting Kali M&A macOS Microsoft IIS Microsoft SQL Microsoft Windows Netflow Okta OSPF Packet Capture Palo Alto Palo Alto CLI PCI PDF Planning Policy Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting VMWare
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Troubleshooting Palo Alto Microsoft Windows F5 Cisco ASA
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