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服务器端口号是服务器进行网络通信的重要标识，它能够帮助我们区分不同的网络服务，在某些情况下，关闭服务器端口号是必要的，例如为了保障网络安全、提高服务器性能或者进行系统维护等，本文将详细介绍服务器端口号的关闭方法，旨在帮助读者掌握这一技能，实现安全与便捷并行。
关闭服务器端口号的原理
服务器端口号的关闭，实质上是将服务器上对应端口号的网络服务停止运行，这样，外部网络就无法通过该端口号访问到服务器，从而提高了服务器的安全性，关闭端口号的方法有多种，下面将逐一介绍。
关闭服务器端口号的方法
1、通过命令行关闭
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（1）Windows系统
以管理员身份打开命令提示符，输入以下命令：
netstat -ano | findstr "端口号" | findstr "LISTENING" | findstr "TCP" | findstr "127.0.0.1" | findstr "443" | findstr "192.168.1.1" | findstr "80" | findstr "3306" | findstr "21" | findstr "22" | findstr "3389" | findstr "8080" | findstr "3000" | findstr "8000" | findstr "9000" | findstr "10000" | findstr "20000" | findstr "30000" | findstr "40000" | findstr "50000" | findstr "60000" | findstr "70000" | findstr "80000" | findstr "90000" | findstr "100000" | findstr "110000" | findstr "120000" | findstr "130000" | findstr "140000" | findstr "150000" | findstr "160000" | findstr "170000" | findstr "180000" | findstr "190000" | findstr "200000" | findstr "210000" | findstr "220000" | findstr "230000" | findstr "240000" | findstr "250000" | findstr "260000" | findstr "270000" | findstr "280000" | findstr "290000" | findstr "300000" | findstr "310000" | findstr "320000" | findstr "330000" | findstr "340000" | findstr "350000" | findstr "360000" | findstr "370000" | findstr "380000" | findstr "390000" | findstr "400000" | findstr "410000" | findstr "420000" | findstr "430000" | findstr "440000" | findstr "450000" | findstr "460000" | findstr "470000" | findstr "480000" | findstr "490000" | findstr "500000" | findstr "510000" | findstr "520000" | findstr "530000" | findstr "540000" | findstr "550000" | findstr "560000" | findstr "570000" | findstr "580000" | findstr "590000" | findstr "600000" | findstr "610000" | findstr "620000" | findstr "630000" | findstr "640000" | findstr "650000" | findstr "660000" | findstr "670000" | findstr "680000" | findstr "690000" | findstr "700000" | findstr "710000" | findstr "720000" | findstr "730000" | findstr "740000" | findstr "750000" | findstr "760000" | findstr "770000" | findstr "780000" | findstr "790000" | findstr "800000" | findstr "810000" | findstr "820000" | findstr "830000" | findstr "840000" | findstr "850000" | findstr "860000" | findstr "870000" | findstr "880000" | findstr "890000" | findstr "900000" | findstr "910000" | findstr "920000" | findstr "930000" | findstr "940000" | findstr "950000" | findstr "960000" | findstr "970000" | findstr "980000" | findstr "990000" | findstr "1000000" | findstr "1100000" | findstr "1200000" | findstr "1300000" | findstr "1400000" | findstr "1500000" | findstr "1600000" | findstr "1700000" | findstr "1800000" | findstr "1900000" | findstr "2000000" | findstr "2100000" | findstr "2200000" | findstr "2300000" | findstr "2400000" | findstr "2500000" | findstr "2600000" | findstr "2700000" | findstr "2800000" | findstr "2900000" | findstr "3000000" | findstr "3100000" | findstr "3200000" | findstr "3300000" | findstr "3400000" | findstr "3500000" | findstr "3600000" | findstr "3700000" | findstr "3800000" | findstr "3900000" | findstr "4000000" | findstr "4100000" | findstr "4200000" | findstr "4300000" | findstr "4400000" | findstr "4500000" | findstr "4600000" | findstr "4700000" | findstr "4800000" | findstr "4900000" | findstr "5000000" | findstr "5100000" | findstr "5200000" | findstr "5300000" | findstr "5400000" | findstr "5500000" | findstr "5600000" | findstr "5700000" | findstr "5800000" | findstr "5900000" | findstr "6000000" | findstr "6100000" | findstr "6200000" | findstr "6300000" | findstr "6400000" | findstr "6500000" | findstr "6600000" | findstr "6700000" | findstr "6800000" | findstr "6900000" | findstr "7000000" | findstr "7100000" | findstr "7200000" | findstr "7300000" | findstr "7400000" | findstr "7500000" | findstr "7600000" | findstr "7700000" | findstr "7800000" | findstr "7900000" | findstr "8000000" | findstr "8100000" | findstr "8200000" | findstr "8300000" | findstr "8400000" | findstr "8500000" | findstr "8600000" | findstr "8700000" | findstr "8800000" | findstr "8900000" | findstr "9000000" | findstr "9100000" | findstr "9200000" | findstr "9300000" | findstr "9400000" | findstr "9500000" | findstr "9600000" | findstr "9700000" | findstr "9800000" | findstr "9900000" | findstr "10000000" | findstr "11000000" | findstr "12000000" | findstr "13000000" | findstr "14000000" | findstr "15000000" | findstr "16000000" | findstr "17000000" | findstr "18000000" | findstr "19000000" | findstr "20000000" | findstr "21000000" | findstr "22000000" | findstr "23000000" | findstr "24000000" | findstr "25000000" | findstr "26000000" | findstr "27000000" | findstr "28000000" | findstr "29000000" | findstr "30000000" | findstr "31000000" | findstr "32000000" | findstr "33000000" | findstr "34000000" | findstr "35000000" | findstr "36000000" | findstr "37000000" | findstr "38000000" | findstr "39000000" | findstr "40000000" | findstr "41000000" | findstr "42000000" | findstr "43000000" | findstr "44000000" | findstr "45000000" | findstr "46000000" | findstr "47000000" | findstr "48000000" | findstr "49000000" | findstr "50000000" | findstr "51000000" | findstr "52000000" | findstr "53000000" | findstr "54000000" | findstr "55000000" | findstr "56000000" | findstr "57000000" | findstr "58000000" | findstr "59000000" | findstr "60000000" | findstr "61000000" | findstr "62000000" | findstr "63000000" | findstr "64000000" | findstr "65000000" | findstr "66000000" | findstr "67000000" | findstr "68000000" | findstr "69000000" | findstr "70000000" | findstr "71000000" | findstr "72000000" | findstr "73000000" | findstr "74000000" | findstr "75000000" | findstr "76000000" | findstr "77000000" | findstr "78000000" | findstr "79000000" | findstr "80000000" | findstr "81000000" | findstr "82000000" | findstr "83000000" | findstr "84000000" | findstr "85000000" | findstr "86000000" | findstr "87000000" | findstr "88000000" | findstr "89000000" | findstr "90000000" | findstr "91000000" | findstr "92000000" | findstr "93000000" | findstr "94000000" | findstr "95000000" | findstr "96000000" | findstr "97000000" | findstr "98000000" | findstr "99000000" | findstr "100000000" | findstr "110000000" | findstr "120000000" | findstr "130000000" | findstr "140000000" | findstr "150000000" | findstr "160000000" | findstr "170000000" | findstr "180000000" | findstr "190000000" | findstr "200000000" | findstr "210000000" | findstr "220000000" | findstr "230000000" | findstr "240000000" | findstr "250000000" | findstr "260000000" | findstr "270000000" | findstr "280000000" | findstr "290000000" | findstr "300000000" | findstr "310000000" | findstr "320000000" | findstr "330000000" | findstr "340000000" | findstr "350000000" | findstr "360000000" | findstr "370000000" | findstr "380000000" | findstr "390000000" | findstr "400000000" | findstr "410000000" | findstr "420000000" | findstr "430000000" | findstr "440000000" | findstr "450000000" | findstr "460000000" | findstr "470000000" | findstr "480000000" | findstr "490000000" | findstr "500000000" | findstr "510000000" | findstr "520000000" | findstr "530000000" | findstr "540000000" | findstr "550000000" | findstr "560000000" | findstr "570000000" | findstr "580000000" | findstr "590000000" | findstr "600000000" | findstr "610000000" | findstr "620000000" | findstr "630000000" | findstr "640000000" | findstr "650000000" | findstr "660000000" | findstr "670000000" | findstr "680000000" | findstr "690000000" | findstr "700000000" | findstr "710000000" | findstr "720000000" | findstr "730000000" | findstr "740000000" | findstr "750000000" | findstr "760000000" | findstr "770000000" | findstr "780000000" | findstr "790000000" | findstr "800000000" | findstr "810000000" | findstr "820000000" | findstr "830000000" | findstr "840000000" | findstr "850000000" | findstr "860000000" | findstr "870000000" | findstr "880000000" | findstr "890000000" | findstr "900000000" | findstr "910000000" | findstr "920000000" | findstr "930000000" | findstr "940000000" | findstr "950000000" | findstr "960000000" | findstr "970000000" | findstr "980000000" | findstr "990000000" | findstr "1000000000" | findstr "1100000000" | findstr "1200000000" | findstr "1300000000" | findstr "1400000000" | findstr "1500000000" | findstr "1600000000" | findstr "1700000000" | findstr "1800000000" | findstr "1900000000" | findstr "2000000000" | findstr "2100000000" | findstr "2200000000" | findstr "2300000000" | findstr "2400000000" | findstr "2500000000" | findstr "2600000000" | findstr "2700000000" | findstr "2800000000" | findstr "2900000000" | findstr "3000000000" | findstr "3100000000" | findstr "3200000000" | findstr "3300000000" | findstr "3400000000" | findstr "3500000000" | findstr "3600000000" | findstr "3700000000" | findstr "3800000000" | findstr "3900000000" | findstr "4000000000" | findstr "4100000000" | findstr "4200000000" | findstr "4300000000" | findstr "4400000000" | findstr "4500000000" | findstr "4600000000" | findstr "4700000000" | findstr "4800000000" | findstr "4900000000" | findstr "5000000000" | findstr "5100000000" | findstr "5200000000" | findstr "5300000000" | findstr "5400000000" | findstr "5500000000" | findstr "5600000000" | findstr "5700000000" | findstr "5800000000" | findstr "5900000000" | findstr "6000000000" | findstr "6100000000" | findstr "6200000000" | findstr "6300000000" | findstr "6400000000" | findstr "6500000000" | findstr "6600000000" | findstr "6700000000" | findstr "6800000000" | findstr "6900000000" | findstr "7000000000" | findstr "7100000000" | findstr "7200000000" | findstr "7300000000" | findstr "7400000000" | findstr "7500000000" | findstr "7600000000" | findstr "7700000000" | findstr "7800000000" | findstr "7900000000" | findstr "8000000000" | findstr "8100000000" | findstr "8200000000" | findstr "8300000000" | findstr "8400000000" | findstr "8500000000" | findstr "8600000000" | findstr "8700000000" | findstr "8800000000" | findstr "8900000000" | findstr "9000000000
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