add: doc and ctyunos tips

env/ctyunos.txt

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+1. 安装omc包时提示缺失libcares.so.2
+sudo yum install c-ares
+2. 安装kvdb依赖libatomic.so.1
+sudo yum install libatomic
+3. 安装mariadb 10.3(系统仓库自带)
+sudo yum install mariadb-server
+
+增加： /etc/my.cnf.d/mariadb-server.cnf两行配置项：
+bind-address=0.0.0.0
+port=33066
+
+sudo systemctl enable mariadb
+sudo systemctl start mariadb
+
+mysql -uroot -p
+ALTER USER 'root'@'localhost' IDENTIFIED BY '1000omc@kp!';
+grant all privileges on *.* to 'root'@'localhost' IDENTIFIED by '1000omc@kp!' with grant option;
+grant all privileges on *.* to 'root'@'127.0.0.1' IDENTIFIED by '1000omc@kp!' with grant option;
+grant all privileges on *.* to 'root'@'%' IDENTIFIED by '1000omc@kp!' with grant option;
+flush privileges;
+
+
+
+4