复制 |—>handle_connection|—>thd_prepare_connection|—>login_connection|—>check_connection// 判断客户端的主机名是否可以登录(mysql.user.host),如果 mysql.user.host 有 '%' 那么将 allow_all_hosts,允许所有主机。|—>acl_check_host|—>acl_authenticate|—>server_mpvio_initialize// 初始化mpvio对...
(const char *host, const char *ip) 1496 { 1497 if (allow_all_hosts) 1498 return 0; 1499 VOID(pthread_mutex_lock(&acl_cache->lock)); 1500 1501 if ((host && hash_search(&acl_check_hosts,(uchar*) host,strlen(host))) || 1502 (ip && hash_search(&acl_check_hosts,(uchar*) ip,...
RELOAD:该权限允许用户使用FLUSH语句。拥有该权限的用户还可以使用与FLUSH操作等效的mysqladmin子命令:flush-hosts,flush-logs,flush-privileges,flush-status,flush-tables,flush-threads,refresh和reload * mysqladmin的reload子命令会通知Server将权限表重新加载到内存中。flush-privileges作用与reload子命令作用相同。refresh...
修改hosts.allow配置文件,增加如下配置。 mysqld-max : ALL :ALLOW 版本问题导致无法连接MySQL服务 问题现象 自建的MySQL服务器版本为5.6,远程连接时提示如下错误。 ERROR 2049 (HY000): Connection using old (pre-4.1.1) authentication protocol refused (client option 'secure_auth' enabled) ...
Withmysqldsecured by TCP wrappers and thehosts.allowandhosts.denyfiles configured to restrict access from an IP address, connection attempts from that address resulted in too many messages to the error log. (Bug #25476479, Bug #84708)
To allow root connections from other hosts, set this environment variable. For example, the value 172.17.0.1, which is the default Docker gateway IP, allows connections from the host machine that runs the container. The option accepts only one entry, but wildcards are allowed (for example, ...
These are granted all privileges. You can also use the host table to indicate hosts that are not secure. Suppose you have a machine public.your.domain that is located in a public area that you do not consider secure. You can allow access to all hosts on your network except that machine...
最近,在开发一个分库分表中间件,由于功能需求,需要分析MySQL协议,发现网上对于MySQL协议分析的文章大部分都过时了,原因是分析的MySQL版本太低了。怎么办呢?于是乎,我便硬着头皮开始啃MySQL源码,经过两个多月的整理,终于总结出这篇MySQL协议。 注:部分来自于互联网,感谢数据库大牛前辈们的默默付出!!
It's not a bug. Cite: === I think i've got the problem solved, there's a need to add to /etc/hosts.allow this line: mysqld : ALL : ACCEPT The package should add this line in the file, to prevent further bug reports and forum posts. === [18 Mar 2008 8:03] Tonci Grgin ...
create user appuser@'%' identified by 'mtls0352'; create database appdb char set utf8; grant all on appdb.* to appuser@'%'; 2):向/etc/ansible/hosts文件增加主机信息 向/etc/ansible/hosts文件增加如下内容 mycat ansible_host=10.186.19.14 3):更新var/var_mycat.yaml文件 告诉mysqltools那...