Sweet DNS

In this final videocast about Oracle RAC Virtual IP’s, Alex Gorbachev explains why Oracle recommends to add VIP’s to DNS name resolution and why sometimes you can see weird ORA-12545 errors.

Pinging an IP address is a method of translating computer addresses so computers will be able to locate each other. Translating a numerical address into a certain sequence of words requires the ping IP command of which the IP address is assigned to a computer. Every time the domain name is used, a DNS [...]