telnet

http://cache.baiducontent.com/c?m=9f65cb4a8c8507ed4fece763105392230e54f73b6cd0d3027fa3cf1fd579253a3b0189e37c634a43cec67b640aaa4a4bea876c34685d34f2c688de459aebd57469cf3035000bf04705a71eb8ba4732b126875b99b86fe6ad813384afa295880a0f9d15127bf0e7fb5d1765cf7881142693d08e49654861befa4763e828073eeb5357b737ee9636797186e1ad585bb25a&p=c966c801a4904ead08e2977e0c4990&newp=882a9645d79602fc57ef8f364f4dcf231610db2151d4da1e6b82c825d7331b001c3bbfb423241b02d3cf7a6601aa485cebf6377535012ba3dda5c91d9fb4c57479dd64&user=baidu&fm=sc&query=ubuntu%D4%F5%C3%B4%D3%C3telnet%B5%C7%C2%BD%C6%E4%CB%FB%D6%D5%B6%CB&qid=ec5a6a84000288f9&p1=2

http://blog.csdn.net/u010165367/article/details/50907821
http://blog.csdn.net/ruglcc/article/details/7804377