2017-08-06 00:46:25 -07:00
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# udp2raw+kcptun 加速tcp流量 Step by Step 教程
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
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2017-08-10 08:46:05 -07:00
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本教程会一步一步演示用udp2raw+kcptun加速SSH流量的过程。加速任何其他tcp流量也一样,包括ss;本文避免涉及科学上网,所以演示ssh。
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2017-08-06 00:46:25 -07:00
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### 环境要求
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2017-08-09 06:04:18 -07:00
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两边的主机都是linux,有root权限。 可以是openwrt路由器或树莓派,windows上桥接模式的虚拟机也可用
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2017-08-06 00:46:25 -07:00
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### 安装
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下载好kcptun和udp2raw的压缩包,解压分别解压到client端和server端。
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https://github.com/xtaci/kcptun/releases
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https://github.com/wangyu-/udp2raw-tunnel/releases
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解压好后,如图:
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
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### 运行
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1.在远程服务器运行 udp2raw_amd64 server模式:
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```
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./udp2raw_amd64 -s -l0.0.0.0:8855 -r 127.0.0.1:4000 -k "passwd" --raw-mode faketcp -a
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```
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
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2.在本地运行udp2raw_amd64 client模式,假设server ip是45.66.77.88:
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```
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./udp2raw_amd64 -c -r45.66.77.88:8855 -l0.0.0.0:4000 --raw-mode faketcp -a -k"passwd"
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```
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如果一切正常client端输出如下,显示client_ready:
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
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server端也会有类似输出,显示server_ready:
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
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3.在远程服务器运行 kcp server
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2017-08-07 16:05:27 -07:00
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2017-08-06 00:46:25 -07:00
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```
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./server_linux_amd64 -t "127.0.0.1:22" -l ":4000" -mode fast2 -mtu 1300
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```
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2017-08-07 16:05:27 -07:00
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-mtu 1300很重要,或者设置成更小。
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2017-08-06 00:46:25 -07:00
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
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4.在本地运行
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2017-08-07 16:05:27 -07:00
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2017-08-06 00:46:25 -07:00
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```
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2017-08-07 16:05:27 -07:00
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./client_linux_amd64 -r "127.0.0.1:4000" -l ":3322" -mode fast2 -mtu 1300
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2017-08-06 00:46:25 -07:00
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```
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2017-08-07 16:05:27 -07:00
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-mtu 1300很重要,或者设置成更小。
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2017-08-06 00:46:25 -07:00
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
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5.所有准备工作已经做好,在本地运行
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```
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ssh -p 3322 root@127.0.0.1
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```
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已经连进去了,而且是经过kcptun加速的:
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
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