This document discusses results from using the dig command with the +nsid option to analyze Amazon Route 53. The document contains the following information:
(1) An agenda outlining what will be analyzed about Route 53 including the number of name servers (NS), IP addresses, edge locations, name server IDs (NSIDs) for individual NS, and unique NSIDs observed.
(2) Results showing there are 2048 NS distributed across the top level domains .com, .net, .org, and .co.uk with 512 NS each. There are also around 80 edge locations.
(3) Findings that a single NS/IP address can return multiple NSIDs depending on the query location, due
The document discusses Route53 domain name management in AWS. It describes how "parent-child domains" refer to multiple related domain names that are subsets of each other, such as example.jp, sub.example.jp, and foo.bar.sub.example.jp. The key concept discussed is "parent-child cohabitation", which occurs when the name servers of parent and child domains partially overlap, meaning the domains share the same physical server resources. The author experimented with creating many related hosted zones in Route53 but was unable to deliberately cause parent-child cohabitation.
Este documento describe cómo funcionan los filtros de captura (CaptureFilter) en Wireshark y tcpdump. Explica que los filtros de captura se implementan usando BPF (Berkeley Packet Filter) para filtrar paquetes de forma eficiente directamente en el kernel. Luego proporciona ejemplos de código BPF generado para diferentes tipos comunes de filtros como "ip", "port 80", e "ip and port 80", mostrando cómo verifican los encabezados para determinar si un paquete debe capturarse. Finalmente, incluye referencias a los encabezados
This document discusses results from using the dig command with the +nsid option to analyze Amazon Route 53. The document contains the following information:
(1) An agenda outlining what will be analyzed about Route 53 including the number of name servers (NS), IP addresses, edge locations, name server IDs (NSIDs) for individual NS, and unique NSIDs observed.
(2) Results showing there are 2048 NS distributed across the top level domains .com, .net, .org, and .co.uk with 512 NS each. There are also around 80 edge locations.
(3) Findings that a single NS/IP address can return multiple NSIDs depending on the query location, due
The document discusses Route53 domain name management in AWS. It describes how "parent-child domains" refer to multiple related domain names that are subsets of each other, such as example.jp, sub.example.jp, and foo.bar.sub.example.jp. The key concept discussed is "parent-child cohabitation", which occurs when the name servers of parent and child domains partially overlap, meaning the domains share the same physical server resources. The author experimented with creating many related hosted zones in Route53 but was unable to deliberately cause parent-child cohabitation.
Este documento describe cómo funcionan los filtros de captura (CaptureFilter) en Wireshark y tcpdump. Explica que los filtros de captura se implementan usando BPF (Berkeley Packet Filter) para filtrar paquetes de forma eficiente directamente en el kernel. Luego proporciona ejemplos de código BPF generado para diferentes tipos comunes de filtros como "ip", "port 80", e "ip and port 80", mostrando cómo verifican los encabezados para determinar si un paquete debe capturarse. Finalmente, incluye referencias a los encabezados
13. 変換・逆変換する方法
• RFC3492
Punycode: A Bootstring encoding of Unicode
for Internationalized Domain Names in Applications (IDNA)
http://tools.ietf.org/html/rfc3492
• libidn - GNU IDN Library
C/C++/C#/Java API/Emacs API
http://www.gnu.org/software/libidn/