Naming and Directory Services (DNS, NIS, and LDAP)

Migrating From BIND 8 to BIND 9BIND 9 is upwards compatible with most BIND 8 features. However, there are still anumber of caveats you should be aware of when upgrading an existing BIND 8installation to use BIND 9. Be sure to read the entire Migration Notes document beforeinstalling and using BIND 9. The Migration Notes are available at/usr/share/doc/bind/migration.txt. Also, the BIND package names havechanged to SUNWbind and SUNWbindr. The SUNWbindr package contains the DNSserver manifest.The following list presents a brief overview of the differences between BIND 8 andBIND 9. Details are available in the Migration Notes.■■■■■■■Configuration File Compatibility■■■■■■Unimplemented options warning messagetransfer-format option changesConfiguration file errorsLogging categories have changedNotify message and refresh query changesMultiple classes changeZone File Compatibility■■■■■Stricter rules for TTLs in zone fileSOA serial number changesUnbalanced quotes cause errorsLine breaks, syntax changeUse \$ instead of $$ in domain namesInteroperability Impact of New Protocol Features■ EDNS0 new in BIND 9■ Zone transfers default changeUnrestricted Character Set■■No restrictions on character setSecurity issue, improper namingServer Administration Tools■■The rndc program replaces ndcnsupdate: changes in multiple updatesNo Information Leakage Between Zones■Glue NS records handled differentlyUmask Not Modified■Possible umask permissions issues48 System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP) • January 2005