請問開不開防火牆的差別 - Linux
By Carol
at 2015-04-15T12:55
at 2015-04-15T12:55
Table of Contents
最近為了某些原因開了SSH和VPN ( PPTP ) 的服務,因此在小烏龜上面設定了這兩個port的forwarding,
由於之前PPTP在防火牆那邊會出現一些問題以至於無法連上,所以目前為止是都沒有開啟防火牆的,
但是我有時候必須要PPPOE撥接使用到公用IP,深怕我的系統會因此被入侵。
問題:
1. 請問開不開防火牆真的會有影響嗎?
2. 請問開了防火牆,但有開放這兩個port,這樣有意義嗎?
3. 除了使用中的這兩個服務,其餘的port會有什麼影響呢?
拜託各位解解小弟的疑問。
--
由於之前PPTP在防火牆那邊會出現一些問題以至於無法連上,所以目前為止是都沒有開啟防火牆的,
但是我有時候必須要PPPOE撥接使用到公用IP,深怕我的系統會因此被入侵。
問題:
1. 請問開不開防火牆真的會有影響嗎?
2. 請問開了防火牆,但有開放這兩個port,這樣有意義嗎?
3. 除了使用中的這兩個服務,其餘的port會有什麼影響呢?
拜託各位解解小弟的疑問。
--
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Linux
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