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2018-02-27 12:05:07 +08:00
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notes/计算机网络.md
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@ -462,7 +462,6 @@ CIDR
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>㣬<EFBFBD><E3A3AC>ʶ<EFBFBD><CAB6> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַת<D6B7><D7AA><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD><D6A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><CEAC> IP <20><>ַ<EFBFBD><D6B7> MAC <20><>ַ<EFBFBD><D6B7>ӳ<EFBFBD>䡣
- ·<><C2B7><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC>ʶ<EFBFBD><CAB6> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַת<D6B7><D7AA><EFBFBD><EFBFBD><EFBFBD>顣ά<E9A1A3><CEAC><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ߡ<EFBFBD>
## ·<><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@ -478,14 +477,14 @@ CIDR
## ·<><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD><D0AD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD>·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Э<EFBFBD>鶼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˱仯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ؽ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD>·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Э<EFBFBD>鶼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽ṹ<EFBFBD>ı仯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ؽ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ AS<41><53>һ<EFBFBD><D2BB> AS <20><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>һ<EFBFBD>ֺͱ<D6BA><CDB1><EFBFBD> AS <20><>ͬ<EFBFBD><CDAC>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD>顣
<EFBFBD><EFBFBD><EFBFBD>԰<EFBFBD>·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Э<EFBFBD>黮<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣺ
1. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> IGP<47><50>Interior Gateway Protocol<6F><6C> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD> RIP <20><> OSPF<50><46>
2. <20>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> EGP<47><50>External Gateway Protocol<6F><6C> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ֮<EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD> BGP<47><50>
1. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> IGP<47><50>Interior Gateway Protocol<6F><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AS <EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD> RIP <20><> OSPF<50><46>
2. <20>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> EGP<47><50>External Gateway Protocol<6F><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AS ֮<EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD> BGP<47><50>
![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/e0be6970-5b0e-44a2-bc71-df4d61c42b8f.jpg)
@ -509,13 +508,13 @@ RIP Э
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> OSPF<50><46><EFBFBD><EFBFBD>Ϊ<EFBFBD>˿˷<CBBF> RIP <20><>ȱ<EFBFBD><C8B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD>ʾ OSPF <20><><EFBFBD><EFBFBD>ijһ<C4B3>ҳ<EFBFBD><D2B3>̿<EFBFBD><CCBF>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD>ǹ<EFBFBD><C7B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Dijkstra <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD>㷨 SPF<50><46>
<EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD>ʾ OSPF <20><><EFBFBD><EFBFBD>ijһ<C4B3>ҳ<EFBFBD><D2B3>̿<EFBFBD><CCBF>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD>ǹ<EFBFBD><C7B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD>ʾʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Dijkstra <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD>㷨 SPF<50><46>
OSPF <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص㣺
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ǻ鷺<C7BA><E9B7BA><EFBFBD><EFBFBD>
2. <20><><EFBFBD>͵<EFBFBD><CDB5><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ·<D0A9><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>·<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7>á<EFBFBD><C3A1><EFBFBD><EFBFBD>롢ʱ<EBA1A2>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>
3. ֻ<>е<EFBFBD><D0B5><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD>仯ʱ<E4BBAF><CAB1>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>Żᷢ<C5BB><E1B7A2><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ǻ鷺<C7BA><E9B7BA><EFBFBD><EFBFBD>
- <20><><EFBFBD>͵<EFBFBD><CDB5><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ·<D0A9><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>·<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7>á<EFBFBD><C3A1><EFBFBD><EFBFBD>롢ʱ<EBA1A2>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>
- ֻ<>е<EFBFBD><D0B5><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD>仯ʱ<E4BBAF><CAB1>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>Żᷢ<C5BB><E1B7A2><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽ṹͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>µġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> RIP<49><50>OSPF <20>ĸ<EFBFBD><C4B8>¹<EFBFBD><C2B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺܿ졣
@ -545,8 +544,8 @@ PING
PING <20>Ĺ<EFBFBD><C4B9>̣<EFBFBD>
1. PING ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7>Ȼ<EFBFBD><C8BB>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޷<EFBFBD><DEB7><EFBFBD><EFBFBD>ҵ<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> ARP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
2. PING <20><>ͬ<EFBFBD><CDAC><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>͸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>͸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>Ҫͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
1. PING ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7>Ȼ<EFBFBD><C8BB>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޷<EFBFBD><DEB7><EFBFBD><EFBFBD>ҵ<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> ARP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
2. PING <20><>ͬ<EFBFBD><CDAC><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>Ҫͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
## IP <20>ಥ
@ -574,7 +573,7 @@ VPN ʹ
ר<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> NAT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP ת<><D7AA>Ϊȫ<CEAA><C8AB> IP<49><50>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>NAT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ȫ<EFBFBD><C8AB> IP һһ<D2BB><D2BB>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD>ӵ<EFBFBD><D3B5> n <20><>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7>ר<EFBFBD><D7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>ͬʱ<CDAC><CAB1> n ̨<><CCA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뻥<EFBFBD><EBBBA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˸<EFBFBD><CBB8><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3>õ<EFBFBD> NAT ת<><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ˿ں<CBBF>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7>ʹ<EFBFBD>ö˿ںŵ<DABA> NAT Ҳ<><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>˿<EFBFBD>ת<EFBFBD><D7AA> NAPT<50><54>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>NAT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ȫ<EFBFBD><C8AB> IP һһ<D2BB><D2BB>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD>ӵ<EFBFBD><D3B5> n <20><>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7>ר<EFBFBD><D7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>ͬʱ<CDAC><CAB1> n ̨<><CCA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뻥<EFBFBD><EBBBA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˸<EFBFBD><CBB8><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3>õ<EFBFBD> NAT ת<><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ˿ں<CBBF>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>ʹ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD>ר<EFBFBD><D7A8><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7>ʹ<EFBFBD>ö˿ںŵ<DABA> NAT Ҳ<><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>˿<EFBFBD>ת<EFBFBD><D7AA> NAPT<50><54>
![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/0f31bc7a-d60b-48a6-8e3f-597708369e52.png)
@ -586,12 +585,9 @@ VPN ʹ
## UDP <20><> TCP <20><><EFBFBD>ص<EFBFBD>
<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>Э<EFBFBD><EFBFBD> UDP<44><50>User Datagram Protocol<6F><6C>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> TCP<43><50>Transmission Control Protocol<6F><6C>
- <EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>Э<EFBFBD><EFBFBD> UDP<44><50>User Datagram Protocol<6F><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD>ϲ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> UDP <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>
UDP <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD>ϲ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> UDP <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>
TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<D3B5><C4A3>ṩ<EFBFBD>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3>ṩȫ˫<C8AB><CBAB>ͨ<EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ò㴫<C3B2><E3B4AB><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>֯<EFBFBD>ɴ<EFBFBD>С<EFBFBD><D0A1><EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD>ݿ飩
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> TCP<43><50>Transmission Control Protocol<6F><6C> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<EFBFBD><EFBFBD>ṩ<EFBFBD>ɿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD>ṩȫ˫<EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ò㴫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֯<EFBFBD>ɴ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ飩
## UDP <20>ײ<EFBFBD><D7B2><EFBFBD>ʽ
@ -603,19 +599,19 @@ TCP
![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/21a00b02-c0a6-4bcd-9af0-5ec6bb66e34c.jpg)
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 301<30><31><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>һ<EFBFBD><D2BB><EFBFBD>ֽڵı<DAB5><C4B1><EFBFBD>Ϊ 301<30><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Я<EFBFBD><D0AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>Ϊ 100 <20>ֽڣ<D6BD><DAA3><EFBFBD>ô<EFBFBD><C3B4>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD><EFBFBD>ӦΪ 401<30><31>
- **<2A><><EFBFBD><EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 301<30><31><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>һ<EFBFBD><D2BB><EFBFBD>ֽڵı<DAB5><C4B1><EFBFBD>Ϊ 301<30><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Я<EFBFBD><D0AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>Ϊ 100 <20>ֽڣ<D6BD><DAA3><EFBFBD>ô<EFBFBD><C3B4>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD><EFBFBD>ӦΪ 401<30><31>
**ȷ<>Ϻ<EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD><EFBFBD><EFBFBD> B <20><>ȷ<EFBFBD>յ<EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD><EFBFBD>Ϊ 501<30><31>Я<EFBFBD><D0AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>Ϊ 200 <20>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD><EFBFBD>Ϊ 701<30><31>B <20><><EFBFBD>͸<EFBFBD> A <20><>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>Ķ<EFBFBD><C4B6><EFBFBD>ȷ<EFBFBD>Ϻž<CFBA>Ϊ 701<30><31>
- **ȷ<>Ϻ<EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD><EFBFBD><EFBFBD> B <20><>ȷ<EFBFBD>յ<EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD><EFBFBD>Ϊ 501<30><31>Я<EFBFBD><D0AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>Ϊ 200 <20>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD><EFBFBD>Ϊ 701<30><31>B <20><><EFBFBD>͸<EFBFBD> A <20><>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>Ķ<EFBFBD><C4B6><EFBFBD>ȷ<EFBFBD>Ϻž<CFBA>Ϊ 701<30><31>
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>** <20><>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2>־<EFBFBD><D6BE>뱨<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ij<EFBFBD><C4B3>ȡ<EFBFBD>
- **<2A><><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB>** <20><>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2>־<EFBFBD><D6BE>뱨<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ij<EFBFBD><C4B3>ȡ<EFBFBD>
**ȷ<><C8B7> ACK** <20><><EFBFBD><EFBFBD> ACK=1 ʱȷ<CAB1>Ϻ<EFBFBD><CFBA>ֶ<EFBFBD><D6B6><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>TCP <20>涨<EFBFBD><E6B6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>͵ı<CDB5><C4B1>Ķζ<C4B6><CEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACK <20><> 1<><31>
- **ȷ<><C8B7> ACK** <20><><EFBFBD><EFBFBD> ACK=1 ʱȷ<CAB1>Ϻ<EFBFBD><CFBA>ֶ<EFBFBD><D6B6><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>TCP <20>涨<EFBFBD><E6B6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>͵ı<CDB5><C4B1>Ķζ<C4B6><CEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACK <20><> 1<><31>
**ͬ<><CDAC> SYN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD> SYN=1<><31>ACK=0 ʱ<><CAB1>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΡ<C4B6><CEA1><EFBFBD><EFBFBD>Է<EFBFBD>ͬ<EFBFBD>⽨<EFBFBD><E2BDA8><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SYN=1<><31>ACK=1<><31>
- **ͬ<><CDAC> SYN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD> SYN=1<><31>ACK=0 ʱ<><CAB1>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΡ<C4B6><CEA1><EFBFBD><EFBFBD>Է<EFBFBD>ͬ<EFBFBD>⽨<EFBFBD><E2BDA8><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SYN=1<><31>ACK=1<><31>
**<EFBFBD><EFBFBD>ֹ FIN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD> FIN=1 ʱ<><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD>˱<EFBFBD><CBB1>Ķεķ<CEB5><C4B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѷ<EFBFBD><D1B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
- **<2A><>ֹ FIN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD> FIN=1 ʱ<><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD>˱<EFBFBD><CBB1>Ķεķ<CEB5><C4B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѷ<EFBFBD><D1B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>Ϊ<EFBFBD><CEAA><EFBFBD>շ<EFBFBD><D5B7>÷<EFBFBD><C3B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䷢<EFBFBD>ʹ<EFBFBD><CDB4>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ݡ<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>շ<EFBFBD><D5B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޵ġ<DEB5>
- **<2A><><EFBFBD><EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>Ϊ<EFBFBD><CEAA><EFBFBD>շ<EFBFBD><D5B7>÷<EFBFBD><C3B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䷢<EFBFBD>ʹ<EFBFBD><CDB4>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ݡ<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>շ<EFBFBD><D5B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޵ġ<DEB5>
## TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
@ -729,11 +725,10 @@ TCP
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣺ
**(1) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
**(2) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
**(3) Ȩ<><C8A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
3. Ȩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>ΪĬ<CEAA><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><C3B8>ٻ<EFBFBD><D9BB>档
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ b <20><><EFBFBD><EFBFBD> abc.com <20>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc.com <20><> y.abc.com
@ -743,8 +738,6 @@ TCP
![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/8b335d94-c1ca-42e1-ad48-bb179d28a4f1.jpg)
**(4) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><>Ҳ<EFBFBD><D2B2>ΪĬ<CEAA><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><C3B8>ٻ<EFBFBD><D9BB>档
### 2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>򱾵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>̲<EFBFBD><EFBFBD>õݹ飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õݹ<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><EFBFBD>
@ -767,7 +760,7 @@ TELNET
## <20><>ά<EFBFBD><CEAC> WWW
<EFBFBD><EFBFBD> HTTP <20>ʼǡ<CABC>
[HTTP](https://github.com/CyC2018/InterviewNotes/blob/master/notes/HTTP.md)
## <20><><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Э<EFBFBD><D0AD>