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    Telnet,SSH1,SSH2,Telnet/SSL,Rlogin,Serial,TAPI,RAW

    采用Telnet用来訪问远程计算机的TCP/IP协议以控制你的网络设备,相当于在离开某个建筑时大喊你的username和口令。非常快会有人进行监听, 并且他们会利用你安全意识的缺乏。传统的网络服务程序如:ftp、pop和telnet在本质上都是不安全的,由于它们在网络上用明文传送口令和数据,别 实用心的人非常easy就能够截获这些口令和数据。并且,这些服务程序的安全验证方式也是有其弱点的。就是非常easy受到“中间人”(man-in-the- middle)这样的方式的攻击。所谓“中间人”的攻击方式,就是“中间人”冒充真正的server接收你的传给server的数据,然后再冒充你把数据传给真正的服务 器。server和你之间的数据传送被“中间人”一转手做了手脚之后。就会出现非常严重的问题。

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    系统运维工程师的法宝:python pa

    安装:pip install Paramiko paramiko是用python语言写的一个模块,遵循SSH2协议,支持以加密和认证的方式,进行远程服务器的连接。 使用paramiko可以很好的解决以下问题: 需要使用windows客户端, 远程连接到Linux服务器,查看上面的日志状态,批量配置远程服务器,文件上传,文件下载等 "paramiko" is a combination of the esperanto words for "paranoid" and "friend".  it's a module for python 2.5+ that implements the SSH2 protocol for secure (encrypted and authenticated) connections to remote machines. unlike SSL (aka TLS), SSH2 protocol does not require hierarchical certificates signed by a powerful central authority. you may know SSH2 as the protocol that replaced telnet and rsh for secure access to remote shells, but the protocol also includes the ability to open arbitrary channels to remote services across the encrypted tunnel (this is how sftp works, for example). it is written entirely in python (no C or platform-dependent code) and is released under the GNU LGPL (lesser GPL). the package and its API is fairly well documented in the "doc/" folder that should have come with this archive. Requirements ------------  - python 2.5 or better <http://www.python.org/>  - pycrypto 2.1 or better <https://www.dlitz.net/software/pycrypto/> If you have setuptools, you can build and install paramiko and all its dependencies with this command (as root)::    easy_install ./ Portability ----------- i code and test this library on Linux and MacOS X. for that reason, i'm pretty sure that it works for all posix platforms, including MacOS. it should also work on Windows, though i don't test it as frequently there. if you run into Windows problems, send me a patch: portability is important to me. some python distributions don't include the utf-8 string encodings, for reasons of space (misdirected as that is). if your distribution is missing encodings, you'll see an error like this::    LookupError: no codec search functions registered: can't find encoding this means you need to copy string encodings over from a working system. (it probably only happens on embedded systems, not normal python installs.) Valeriy Pogrebitskiy says th

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