SRV records, also known as Service records in DNS helps clients find services in the domain. A best example of this is with the Windows Active Directory where the SRV records are used to locate the Domain Controllers.
Tag: DNS
Nipper – Network device Security Audit tool
Nipper is an Opensource tool for network device congiguration and security audit. Nipper performs security audits of network device configuration files. The report produced by Nipper includes; detailed security-related issues with recommendations, a configuration report and various appendices. (more…)
netdiag – A Network troubleshooting tool in Windows
Netdiag helps isolate networking and connectivity problems by performing a series of tests to determine the state of your network client and whether it is functional. These tests and the key network status information they expose give admins a more direct means of identifying and isolating network problems.
pathping – Ping and Traceroute at once in Windows
The PathPing tool is a route tracing tool that combines features of Ping and Tracert with additional information that neither of those tools provides. PathPing sends packets to each router on the way to a final destination over a period of time, and then computes results based on the packets returned from each hop. Since PathPing shows the degree of packet loss at any given router or link, you can pinpoint which routers or links might be causing network problems. (more…)
DNS Best practices
The following RFCs define the best practices for DNS Setup.
RFC 1912 – Common DNS Operational and Configuration Errors
DNS Caching in Internet Explorer
Internet Explorer does a DNS Caching which is different from that of the DNS caching on the system through the DNS Client or Resolvers. (more…)
DNS Cache in Windows Registry
DNS Caching is a process by which a DNS client also called a DNS Resolver holds the learnt information about a host or a Domain when it had earlier queried a DNS Server. While this serves good in getting DNS responses for repeated queries faster, it can also be a limiting factor at times. (more…)