我正在尝试创建一个副本集。我的服务器上运行着 mysql，它将充当我的主服务器。但是，我无法远程访问该服务器实例。
我尝试了所有可能的配置。我的 my.cnf 文件如下：
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
#
# * Basic Settings
#
#
# * IMPORTANT
# If you make changes to these settings and your system uses apparmor, you may
# also need to also adjust /etc/apparmor.d/usr.sbin.mysqld.
#
log-bin =mysql-bin
server-id =10001
user = mysql
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
# localhost which is more compatible and is not less secure.
#bind-address = 127.0.0.1
bind-address = 0.0.0.0
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover = BACKUP
#max_connections = 100
#table_cache = 64
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
log_error = /var/log/mysql/error.log
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
当我登录到我的服务器（通过 ssh）并可以使用以下命令成功登录时：
mysql -uroot-p test
但是，当我尝试从另一台机器执行以下命令时：
mysql -h <serverip> -uroot -p test
我收到以下错误：
ERROR 1045 (28000): Access denied for user 'root'@'<someip>' (using password: YES)
有趣的是，<ip2>上面提到的不是我尝试连接的本地 IP 或服务器 IP。
我肯定已经浪费了大约 20 个小时来解决这个问题。任何帮助都非常感谢。
答案1
错误 1045 (28000)：拒绝用户“root”@“”访问（使用密码：是）
此错误表示远程机器的 root 用户没有权限访问 Mysql。
创建另一个用户并授予您想要远程访问的特定数据库的权限。
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.%'
IDENTIFIED BY PASSWORD 'some_characters'
WITH GRANT OPTION;
FLUSH PRIVILEGES;