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989 for the FTPS data channel implicit FTPS was expected to listen on the IANA Well Known Port 990/TCP for the FTPS control channel (65515 to 65535) are needed to open for FTPS for the return ports Need to open the ports. More info please reference:…
FTP,FTPS 与 SFTP 的区别 FTP (File Transfer Protocol)是一种常用的文件传输协议,在日常工作中被广泛应用.不过,FTP 协议使用明文传输.如果文件传输发生在公网,会将所有密码凭据.操作指令,以及传输的文件内容,都以明文的方式暴露出来,特别是在公有云广泛应用的今天,这种传输方式对数据安全有极大的隐患. 针对这种情况,FTPS 和 SFTP 应运而生.虽然这两种传输方式都基于 FTP,而且名字非常相近.即便它们的目的都是为了使文件传输更安全,它们的实现原理也有…
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一.配置防火墙,开启80端口.3306端口 CentOS 7.0默认使用的是firewall作为防火墙,这里改为iptables防火墙. 1.关闭firewall: systemctl stop firewalld.service #停止firewall systemctl disable firewalld.service #禁止firewall开机启动 IT网,http://www.it.net.cn 2.安装iptables防火墙 yum install iptables-services…
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Good Firewall Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 713 Accepted Submission(s): 203 Problem Description Professor X is an expert in network security. These days, X is planning to build a…