Navicat Premium 12远程登入Oracle，mariadb报错及处理方法

Navicat Premium 12远程登入Oracle报错及处理方法

报错no matching authentication protocolvi /usr/local/products/oracle12c/network/admin/sqlnet.ora#添加如下内容SQLNET.ALLOWED_LOGON_VERSION=8

链接报错 listener does currently know of server requested in connect descriptor vi /usr/local/products/oracle12c/network/admin/samples/tnsnames.ora#添加如下内容，修改对应数据库服务名和本机IP地址3.10 = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.10)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = CDB1) ) )

忘了用户密码，修改用户密码 alter user system identified by 123456;

Navicat Premium 12远程登入mariadb报错及处理方法

#报错- lost connection to mysql server at 'reading initial communication packet',system error:0 vim /etc/my.cnf 中的[mysqld]下添加skip-name-resolve

#报错1698 Access denied for user *@* mysql -u root -p#进行远程连接授权GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;GRANT ALL PRIVILEGES ON *.* TO 'zabbix'@'%' WITH GRANT OPTION;flush privileges;use zabbix;GRANT ALL PRIVILEGES ON *.* TO 'zabbix'@'%'IDENTIFIED BY '111111' WITH GRANT OPTION;GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'IDENTIFIED BY '111111' WITH GRANT OPTION;flush privileges;