上過網路課的人都知道,網路封包在網路上傳送幾乎都是未加密的
少見的https通常只用在帳號密碼確認時
所以網路管理者可以知道你正在用電腦作什麼
他可以知道你
正在Yahoo拍賣買衣服
MSN聊天晚上要去哪鬼混
用電子轉帳付本月的會錢
上網看股票漲還是跌
blog寫文章爆公司的料
跟女朋友Email情話綿綿
圖一:透過軟體監控該區段所有網路活動
圖二:MSN對話
圖三:透過軟體擷取MSN對話
圖四:輸入網站密碼
圖五:透過軟體擷取密碼
圖六:下標網路拍賣啊?
圖七:連妳下標的價格都可以知道(這是匯出報表的格式)
當然他也可以記錄起來,來個期末統計報告
簡直比每天自己虎爛的日報表還詳細(還可以記錄幾點幾分幾秒)
不過Sniffer這種軟體還是對一種網路傳輸沒輒那就是SSL加密的:https
圖八:Https網站連入
圖九:擷取結果都變成亂碼
雖然監控網路應該是不合法的,但是難保老闆或員工因為個人興趣而在暗地的作
但是所以不想讓別人知道你到底在上哪些網站,用網路幹些什麼
那你可能需要「自由門」或「無界」這兩套軟體
他們就是靠著https協定來達成,由於https可以讓網路傳送變成加密
因此這兩套軟體便透過https與proxy建立通道
在這通道上的通訊都是加密的,因此無法被解譯
雖然都是大陸出品的黑心軟體,但這款可以安心使用
畢竟他們發明之初,也都是為了對抗共產黨集權的自由鬥士
圖十:自由門架構
圖十一:瀏覽一般網頁
圖十二:已經都經過加密了
那即時通跟MSN也可以透過這樣的方式嗎?
經我測試後,答案是不行的,原因為何並不清楚,不過有另外的方法
就是把即時通或MSN透過網頁形式即可,也就是網頁版即時通或MSN嘍
自由門保證網路傳輸的安全嗎?
未必,考慮以下幾點
1.自由門保障的是妳到Proxy這段,Proxy到Server這段是明碼
(以我的角度,能夠監控到這段的人非常少,而且你的訊息已經混在茫茫網海裡)
2.你是否能信任自由門所指定的Proxy?
(最大的問題應該是這段...)
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