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The defense date of the thesis is 2009-05-12
The current date is 2019-05-24
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URN etd-0511109-142542 Statistics This thesis had been viewed 2337 times. Download 13 times. Author Yu-Cheng Hsu Author's Email Address No Public. Department Communication Engineering Year 2008 Semester 2 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 69 Title An Implementation of Blocking Encrypted Instant Messengers such as Skype and QQ Keyword Iptables Skype Blocking Instant Messenger Instant Messenger Blocking Skype Iptables Abstract This thesis introduces an innovative method, which uses Iptables module of Linux system to establish filter rules that can effectively block encryption Instant Messenger, Skype and QQ. Because Skype and QQ use encryption and private communication protocol, Employees like to use Skype and QQ for not being managed. It is result in information security of managing industry network, so there are every kind of solution on the internet, like blocking particular servers, restricting public ports on network, and analyzing packets for figuring out packet specific. But these solutions can not block Skype and QQ completely in fact. However, this paper provides the solution of using free Iptables to certainly block encryption Instant Messenger, Skype and QQ with no need of extra cost. In the end of this paper will explain the reason why the prior blocking solutions failed, and mention this paper’s experimental result in different environment. Advisor Committee Cheng-Jen Tang - advisor
Files Date of Defense 2009-01-09 Date of Submission 2009-05-12