Mysql 查看连接数,状态 最大并发数(赞) -- show variables like '%max_connections%'; 查看最大连接数 set global max_connections=1000 重新设置 mysql> show status like 'Threads%'; +-------------------+-------+| Variable_name | Value |+-------------------+-------+| Thread
防止扫描器对服务器恶意扫描,可以对 iptables 规则做了比较严格的配置. 以下配置可作为参考: #lo -A INPUT -i lo -j ACCEPT -A OUTPUT -o lo -j ACCEPT #Established -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT #http/https -A INP