下载链接经常被指定到 124.202.164.* 这个 IP 段，是运营商劫持还是 CDN 部署？

[Biwood]

我在使用 Linode 的 SpeedTest 页面的下载链接进行测速时，下载地址发生了变化，但是仍然能够正常下载。

原地址是：http://speedtest.tokyo.linode.com/100MB-tokyo.bin
Chrome 的下载页面显示的地址却是：http://124.202.164.4/files/118400000600AA94/speedtest.tokyo.linode.com/100MB-tokyo.bin
下载速度有 1M/s 。

今天下载最新版 VirtualBox 的安装文件时也遇到了这种情况。
原地址是：http://download.virtualbox.org/virtualbox/5.0.10/VirtualBox-5.0.10-104061-Win.exe
Chrome 下载页显示的地址却是：http://124.202.164.16/files/117900000722B058/119.147.135.245/tech.down.sina.com.cn/20151111/c50dbed4/VirtualBox-5.0.10-104061-Win.exe
下载速度有 6M/s ，基本满速。

如图：

变化之后的链接地址都是 http://124.202.164.4/files/xxx 这种形式，这是什么意思？关键是下载速度都还比较快，到底是 CDN 还是什么。

[imgalaxy]

这是一种叫缓存服务器的东西 一般三方运营商和校园网布置较多
热门文件会进服务器 进行网内传输 达到节省运营商外网流量的目的
大概就是这样 以上都是我瞎说的

[datocp]

用 wget 下载吧，有 302 重定向提示，不过电信线路应该是不会显示转向这个 url 链接的。刚想演示一下结果。。。可怜的 linode


R:\>wget http://speedtest.tokyo.linode.com/100MB-tokyo.bin
--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
=> `100MB-tokyo.bin'
Resolving speedtest.tokyo.linode.com... 106.187.96.148
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 2) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 3) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 4) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 5) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 6) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 7) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 8) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try: 9) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:10) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:11) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:12) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:13) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:14) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:37-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:15) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:38-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:16) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:38-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:17) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:38-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:18) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:38-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:19) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Retrying.

--15:06:38-- http://speedtest.tokyo.linode.com/100MB-tokyo.bin
(try:20) => `100MB-tokyo.bin'
Connecting to speedtest.tokyo.linode.com|106.187.96.148|:80... connected.
HTTP request sent, awaiting response... Read error (Connection reset by peer) in
headers.
Giving up.

[datocp]

R:\>wget http://download.microsoft.com/download/b/a/4/ba4a7e71-2906-4b2d-a0e1-80
cf16844f5f/dotnetfx45_full_x86_x64.exe
--15:11:13-- http://download.microsoft.com/download/b/a/4/ba4a7e71-2906-4b2d-a0
e1-80cf16844f5f/dotnetfx45_full_x86_x64.exe
=> `dotnetfx45_full_x86_x64.exe'
Resolving download.microsoft.com... 183.134.43.146
Connecting to download.microsoft.com|183.134.43.146|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 50,352,408 (48M) [application/octet-stream]

9% [==> ] 4,618,710 488.58K/s ETA 01:32^
C
R:\>wget http://dl.softmgr.qq.com/original/Drivers/dotnetfx45_full_x86_x64.exe
--15:11:49-- http://dl.softmgr.qq.com/original/Drivers/dotnetfx45_full_x86_x64.
exe
=> `dotnetfx45_full_x86_x64.exe.1'
Resolving dl.softmgr.qq.com... 183.61.224.110, 123.151.152.123, 101.226.129.171
Connecting to dl.softmgr.qq.com|183.61.224.110|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: http://221.228.67.148/dl.softmgr.qq.com/original/Drivers/dotnetfx45_fu
ll_x86_x64.exe?mkey=5662a8c772bcfd86&f=1324&p=.exe [following]
--15:11:49-- http://221.228.67.148/dl.softmgr.qq.com/original/Drivers/dotnetfx4
5_full_x86_x64.exe?mkey=5662a8c772bcfd86&f=1324&p=.exe
=> `dotnetfx45_full_x86_x64.exe@mkey=5662a8c772bcfd86&f=1324&p=.exe'
Connecting to 221.228.67.148:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 50,352,408 (48M) [application/octet-stream]

3% [> ] 1,572,864 442.26K/s ETA 01:47^
C

[Andy1999]

ISP 劫持无误

[bazingaterry]

IP ： 124.202.164.4 来自：北京市 鹏博士

[Biwood]

@bazingaterry 我用的就是鹏博士

[Biwood]

@Andy1999 关键是下载速度还挺快，要是劫持了怎么还能下载到源文件呢

[wsy2220]

运营商缓存

[just1]

@Biwood 局域网内的缓存啊，兄弟

[Andy1999]

@Biwood 缓存到内网 目测是彭博士的代理服务器 前几天刚被日过一次

[yexm0]

有谁懂 openwrt 路由怎么设置才能绕开这种内网缓存不?

[luckykong]

@Biwood 为什么劫持了就不能下载到文件？
这个不就相当于迅雷的离线下载么，服务商替你下载好，你直接从内网的服务器瞎子啊

[luckykong]

@Biwood 抱歉 按键太快了
最后三个字“瞎子啊”，应该是“下载”。。打错了

[yexm0]

@luckykong 楼主下载测速文件是想测试它家电脑到 vps 之间的线路速度,现在被运营商截掉了那还怎么测试呢?

[Biwood]

@luckykong 这也太不安全了，万一他们把下载文件替换了我都不知道，谁特么要运营商替我缓存文件的，真是自作多情

[baijd]

移动 ftth ，也碰到>_<

有时候下下来文件被修改了

[fengxing]

@yexm0 openwrt 设置 ss 透明代理吧，国外地址全部走代理

[Cu635]

运营商缓存。

不过 lz 你算是幸运的，运营商的缓存还没问题，要是赶上运营商跳转到自己的缓存、这缓存还三天两头损坏你就会想烧了运营商机房的。

不知道你这运营商缓存会不会出现上游文件同名更新，缓存文件却不更新的情况。

[mengskysama]

之前游戏公司遇到过大量玩家投诉无法按照，最后查出来是缓存错了 1 个字节