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一句话：如果你是买的各大厂商的云服务器，去安全组配置对应需要使用到的端口就可以啦！因为博主用的是阿里云，所以这里就只介绍下阿里云如何开放端口，按着下面三张图来操作就行嘞这个时候有同学就说了，不通过平台的方式行不行，我想锻炼我的Linux能力...当然可以，接下来介绍下直接在Linux上...

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Linux日记本_04:阿里云ECS服务器(CentOS7)端口设置以及 MySQL数据库搭建

阿里云阿里云控制台设置端口开放控制台购买的阿里云服务器默认开放的 22 和 3389 以及-1，我们需要配置一些常用的端口开放。比如说MySQL 数据库 3306 ,NoSQL数据库Redis 6379 Oracle数据库1521 Nginx 的默认80 以及https的443.....等依次...

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1.首先我在安全组已配置好2.服务器上的端口也打开了3.本地telnet 服务器地址和端口失败有知道原因的告知小弟一下，万分感谢！

阿里云的服务器centos7.2是不是默认过滤了与外网的smtp 25端口通讯

阿里云的服务器centos7.2是不是默认过滤了与外网的smtp 25端口通讯？我想利用外部邮箱来发邮件，但是发不了，同样的是centos7.2.我在我虚拟...

阿里云ECS-CentOS7修改ssh默认端口

修改了系统的ssh默认端口，但是始终无法连接。用telnet也无法联通。怀疑是iptables的问题，但是执行命令发现iptables并没有运行。 google一遍，发现centos7的防火墙已经由原来的iptables改为了firewall，经过测试，果然是这个原因。解决方法如下： 1.cen...

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