lsnrctl start启动数据库报:
TNS-12547: TNS:lost contact
NS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 104: Connection reset by peer
出现这个错误是由于host域名映射文件中没有配置127.0.0.1 localhost
linux配置:/etc/hosts
127.0.0.1 localhost.localdomain localhost