再分析 Steam 连接服务器失败问题 - 一个八零网管的电脑

一、首先点击 Steam 会前往 http://media.steampowered.com/client/steam_client_win32 下载文件校验，然后进行版本更新一类的，steam_client_win32 可以用记事本查看里边的文件名称及信息。吐槽一下，为啥现在还是http，这样很容易被各种缓存搞。

|   |
| ------------ | 
| http://media.steampowered.com/client/tenfoot_dicts_all.zip.33245b7d523f68418283e93b0572508fa127ee8f   |
| http://media.steampowered.com/client/tenfoot_dicts_all.zip.33245b7d523f68418283e93b0572508fa127ee8f  |
|  http://media.steampowered.com/client/tenfoot_fonts_all.zip.vz.7673e4cd32b6752bc621d8bc1a7118a9af19b64a_12077027 |
| http://media.steampowered.com/client/tenfoot_ambientsounds_all.zip.89b80bcfdd11b2b99257ddbbdc374e2df54e2738  |
| http://media.steampowered.com/client/tenfoot_sounds_all.zip.vz.ffef2b2fc386819a842ea79484b966a937c2ca7e_1209792  |
|  http://media.steampowered.com/client/tenfoot_images_all.zip.vz.2bb2e0fd7778b60915d496578aa4722e1db8c58f_32706663 |
|  http://media.steampowered.com/client/tenfoot_all.zip.vz.26ee169e1e8191f503cc71fe98255e0e1ffbe305_2351742 |
| http://media.steampowered.com/client/friendsui_all.zip.vz.74681f3f193b2a8b2839a6097715e99e52eb6f12_2626502  |
|  http://media.steampowered.com/client/steamui_websrc_all.zip.vz.6b0d0edb805f04c4f4273ffe6e8704d0ae87fe9c_18978863 |
| http://media.steampowered.com/client/resources_misc_all.zip.vz.4a1fa88d21b005b67a41a9a0fc6044ae1fa46791_2225211  |
| http://media.steampowered.com/client/resources_music_all.zip.vz.7a62e15083d4a65668f0d1fa58ad8c1b99fb5ace_3708050  |
|  http://media.steampowered.com/client/resources_hidpi_all.zip.vz.a6ec169f53f3e3efaebc05c1a68c1aeb567c5847_57918 |
| http://media.steampowered.com/client/resources_all.zip.vz.74a4a2eb0be1667bff2513842c93a7b9e79690e4_1298033  |
| http://media.steampowered.com/client/strings_en_all.zip.be5795336641de48956c90a7c3f1a675046e9b79  |
| http://media.steampowered.com/client/strings_all.zip.vz.e82c34ce9de88d7fbef876ed4320f1d2d8eb74a3_1959887  |
| http://media.steampowered.com/client/public_all.zip.vz.009a39b0ca3971e5cd74eb1ea0bfb2dfaaeb46f5_10086935  |
|  http://media.steampowered.com/client/bins_codecs_win32.zip.vz.47f27f7d989b344bd7bb0f9d9ca3e7c60be61001_3064006 |
|  http://media.steampowered.com/client/bins_misc_win32.zip.vz.7e0cdafef43ae24960db2324d230edaa7dbb1bab_12932036 |
| http://media.steampowered.com/client/bins_cef_win32_win10-64.zip.vz.5ab0f3ddd27a51ba6899da39d6e98ff51ce4e134_59659206  |
| http://media.steampowered.com/client/bins_cef_win32_win7.zip.vz.c36e441a6e158137ef878c1bd4060adcc3c33907_57514521  |
|  http://media.steampowered.com/client/bins_webhelpers_win32_win10-64.zip.vz.52c54438669a1f78845c707613a8507a6405d758_2622254 |
|  http://media.steampowered.com/client/bins_webhelpers_win32_win7.zip.vz.f9d4bf659b0dd16e0942c6b9be3b431b8ddb3609_2316620 |
| http://media.steampowered.com/client/bins_win32.zip.vz.aa722cc0f01b3eeace0be1dee401b4dc3300ac70_28367357  |
| http://media.steampowered.com/client/steam_win32_steamrow.zip.vz.b386e4312963eff1abd02b93880a6cc13d8763a4_1750528  |

二、输入帐号密码后会前往 https://api.steampowered.com/ISteamDirectory/GetCMListForConnect/v0001/?cellid=0&format=vdf 获取CM服务器信息，获取后会进行连接，下边表格只是释例，看看就行。

|   |
| ------------ |
| https://cm1-tyo1.cm.steampowered.com:27023/cmping/  |
| https://cm1-tyo1.cm.steampowered.com:27025/cmping/  |
| https://cm1-tyo2.cm.steampowered.com:27035/cmping/  |
| https://cm1-tyo1.cm.steampowered.com:27025/cmsocket/  |

三、输入帐号密码后会有一系列的更新用户信息，摘抄了几个域名，可能跟你的不一样。

|   |
| ------------ |
| http://clientconfig.akamai.steamstatic.com  |
| http://steamcdn-a.akamaihd.net  |
| https://steamcloud-hkg.oss-accelerate.aliyuncs.com  |
| https://steamstore-a.akamaihd.net  |
| https://steam-chat.com (聊天)  |
| https://community.akamai.steamstatic.com/  |
| https://avatars.st.dl.pinyuncloud.com  |

四、看到这里得到了几个关键域名，然后经过 nslookup 域名 8.8.8.8 获取了IP

| 域名  | IP  | 端口  | 地域  |
| ------------ | ------------ | ------------ | ------------ |
| media.steampowered.com  | 23.199.34.66  | | 中国台湾台北市  |
|  media.steampowered.com | 23.199.34.34  | |  中国台湾台北市 |
|  media.steampowered.com | 23.199.34.73  | | 中国台湾台北市  |
|  media.steampowered.com | 23.199.34.51  | | 中国台湾台北市  |
|  media.steampowered.com  | 104.116.243.202 |  | 中国台湾台北市  |
|  media.steampowered.com |  23.199.34.59 | | 中国台湾台北市  |
|  media.steampowered.com |  23.210.215.56 | | 中国台湾台北市  |
|  api.steampowered.com | 184.86.171.203  | |  美国德克萨斯达拉斯 |
|  cm1-hkg1.cm.steampowered.com | 153.254.86.179 |  |  中国香港 NTT |
|  cm2-hkg1.cm.steampowered.com | 153.254.86.163 |  | 中国香港 NTT  |
|  cm3-hkg1.cm.steampowered.com | 153.254.86.29  | | 中国香港 NTT  |
|  cm4-hkg1.cm.steampowered.com  | 153.254.86.181 |  |  中国香港 NTT |
|  cm1-sgp1.cm.steampowered.com |  103.10.124.162 | | 新加坡  |
|  cm2-sgp1.cm.steampowered.com  | 103.10.124.163 |  | 新加坡   |
| cm3-sgp1.cm.steampowered.com  |  103.10.124.164 | | 新加坡   |
| cm4-sgp1.cm.steampowered.com  | 103.10.124.165  | | 新加坡   |
| cm1-tyo1.cm.steampowered.com  | 155.133.245.36  | | 日本东京  |
| cm2-tyo1.cm.steampowered.com  |  155.133.245.37 | | 日本东京   |
| cm1-tyo2.cm.steampowered.com  |  155.133.239.20 | | 日本东京  |
|  cm2-tyo2.cm.steampowered.com | 155.133.239.51 |  | 日本东京  |

五、以上可以得出，想登录，不管什么模式得先解析api.steampowered.com 这个域名得到cm服务器地址后才开始登录，所以把这个域名的解析ip放到hosts里有惊喜。
我从国内两个地区（北京、西安）获取的cm服务器地址基本是 香港、日本、新加坡，可能你们能获取到别的地方的cm服务器。可以把这些服务器地址直接扔到hosts里，ip基本不变的，具体选哪个cm服务器，会在 vdf 里有判断。ping是ping不通的，只能通过端口访问，vdf里有端口，我就没放上。

```bash
echo. >>C:\Windows\System32\Drivers\etc\hosts

for /f "skip=1 tokens=2 delims=, " %%i in ('nslookup api.steampowered.com 8.8.8.8 2^>nul^|find /i "Addr"') do echo %%i api.steampowered.com>>C:\Windows\System32\Drivers\etc\hosts 
```

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