tailieunhanh - DNS, DHCP, and IP Address Management Session 806

How DNS Works DNS Namespace • Hierarchical name space • Each node in tree represents domain/subdomain • Some subdomains are defined as zones • Each zone has a “primary” name server responsible for all lower nodes • Resource records (RR) are defined for each node • Example RRs are: Address (A), pointer (PTR), mail exchange (MX), name server (NS), start of authority (SOA) | Copyright 1998 Cisco Systems Inc. All rights reserved. Printed in USA. 1 DNS and DHCP Challenges k P Manual rocesse jJ F User Provisioning Users Public Domain Software Policies Based on IP Addresses Intelligent Network Applications Scalable Reliable DNS DHCP Services Automated Network Addressing User-Based Policy Networking 806 0963_05F9_c3 1999 Cisco Systems Inc. 3 Managing Names and Addresses Copyright 1998 Cisco Systems Inc. All rights reserved. Printed in USA. 2 DNS Dir DHCP 1990 s Multiple Sources of Data Single Source of Data 806 0963_05F9_c3 1999 Cisco Systems Inc. 1970 s Few Users Copyright 1998 Cisco Systems Inc. All rights reserved. Printed in USA.

TỪ KHÓA LIÊN QUAN