修改过hosts文件后，比如youtube，能够ping通www.youtube.com但无法在浏览器打开，有没有人知道这是为什么啊？有遇到过同样问题的朋友吗？

引用自: zxlyx 于 九月 06, 2013, 04:31:25 下午
修改过hosts文件后，比如youtube，能够ping通www.youtube.com但无法在浏览器打开，有没有人知道这是为什么啊？有遇到过同样问题的朋友吗？

应该是浏览器的DNS缓存没有清除吧，关闭浏览器再打开试一试

猜是你设了个错误 IP地址 指向 www.youtube.com ，所以能ping不能访问。

在海外机器上能访问也能ping通，ping的结果也是hosts文件中设置的ip，同样的hosts内容在大陆几台机器上测就只能ping通，这会是gfw在作祟吗？或者可能只是大陆个别地区的情况？

这些hosts是新的

173.194.43.33   accounts.youtube.com
74.125.29.121   apiblog.youtube.com
74.125.131.105   help.youtube.com
74.125.228.96   insight.youtube.com
173.194.43.34   m.youtube.com
173.194.43.46   www.youtube.com
74.125.228.105   gdata.youtube.com
173.194.74.116   upload.youtube.com
74.125.228.100   s.youtube.com
173.194.43.35   youtube.com
74.125.228.99   s2.youtube.com
173.194.43.37   i.ytimg.com
173.194.43.36   i1.ytimg.com
173.194.43.38   i2.ytimg.com
173.194.43.46   i3.ytimg.com
173.194.43.35   i4.ytimg.com
173.194.43.34   s.ytimg.com
173.194.43.40   ytimg.l.google.com
67.218.93.12   v1.lscache1.c.youtube.com
67.218.93.13   v2.lscache1.c.youtube.com
74.125.111.82   v3.lscache1.c.youtube.com
67.218.93.15   v4.lscache1.c.youtube.com
67.218.93.12   v5.lscache1.c.youtube.com
67.218.93.13   v6.lscache1.c.youtube.com
74.125.97.182   v7.lscache1.c.youtube.com
74.125.111.119   v8.lscache1.c.youtube.com
67.218.93.12   v9.lscache1.c.youtube.com
67.218.93.13   v10.lscache1.c.youtube.com
67.218.93.14   v11.lscache1.c.youtube.com
67.218.93.15   v12.lscache1.c.youtube.com
74.125.97.144   v13.lscache1.c.youtube.com
67.218.93.13   v14.lscache1.c.youtube.com
67.218.93.14   v15.lscache1.c.youtube.com
67.218.93.15   v16.lscache1.c.youtube.com
67.218.93.12   v17.lscache1.c.youtube.com
67.218.93.13   v18.lscache1.c.youtube.com
67.218.93.14   v19.lscache1.c.youtube.com
67.218.93.15   v20.lscache1.c.youtube.com
173.194.21.184   v21.lscache1.c.youtube.com
67.218.93.13   v22.lscache1.c.youtube.com
67.218.93.14   v23.lscache1.c.youtube.com
67.218.93.15   v24.lscache1.c.youtube.com
67.218.93.12   v1.lscache2.c.youtube.com
67.218.93.13   v2.lscache2.c.youtube.com
67.218.93.14   v3.lscache2.c.youtube.com
67.218.93.15   v4.lscache2.c.youtube.com
67.218.93.12   v5.lscache2.c.youtube.com
67.218.93.13   v6.lscache2.c.youtube.com
67.218.93.14   v7.lscache2.c.youtube.com
67.218.93.15   v8.lscache2.c.youtube.com
67.218.93.12   v9.lscache2.c.youtube.com
74.125.97.185   v10.lscache2.c.youtube.com
67.218.93.14   v11.lscache2.c.youtube.com
74.125.97.187   v12.lscache2.c.youtube.com
67.218.93.12   v13.lscache2.c.youtube.com
67.218.93.13   v14.lscache2.c.youtube.com
67.218.93.14   v15.lscache2.c.youtube.com
67.218.93.15   v16.lscache2.c.youtube.com
74.125.111.20   v17.lscache2.c.youtube.com
74.125.97.181   v18.lscache2.c.youtube.com
67.218.93.14   v19.lscache2.c.youtube.com
67.218.93.15   v20.lscache2.c.youtube.com
67.218.93.12   v21.lscache2.c.youtube.com
67.218.93.13   v22.lscache2.c.youtube.com
67.218.93.14   v23.lscache2.c.youtube.com
67.218.93.15   v24.lscache2.c.youtube.com
67.218.93.12   v1.lscache3.c.youtube.com
67.218.93.13   v2.lscache3.c.youtube.com
67.218.93.14   v3.lscache3.c.youtube.com
67.218.93.15   v4.lscache3.c.youtube.com
67.218.93.12   v5.lscache3.c.youtube.com
74.125.97.149   v6.lscache3.c.youtube.com
67.218.93.14   v7.lscache3.c.youtube.com
74.125.97.151   v8.lscache3.c.youtube.com
67.218.93.12   v9.lscache3.c.youtube.com
67.218.93.13   v10.lscache3.c.youtube.com
67.218.93.14   v11.lscache3.c.youtube.com
67.218.93.15   v12.lscache3.c.youtube.com
67.218.93.12   v13.lscache3.c.youtube.com
67.218.93.13   v14.lscache3.c.youtube.com
74.125.97.178   v15.lscache3.c.youtube.com
74.125.97.147   v16.lscache3.c.youtube.com
67.218.93.12   v17.lscache3.c.youtube.com
67.218.93.13   v18.lscache3.c.youtube.com
67.218.93.14   v19.lscache3.c.youtube.com
67.218.93.15   v20.lscache3.c.youtube.com
67.218.93.12   v21.lscache3.c.youtube.com
67.218.93.13   v22.lscache3.c.youtube.com
67.218.93.14   v23.lscache3.c.youtube.com
67.218.93.15   v24.lscache3.c.youtube.com
67.218.93.12   v1.lscache4.c.youtube.com
67.218.93.13   v2.lscache4.c.youtube.com
67.218.93.14   v3.lscache4.c.youtube.com
67.218.93.15   v4.lscache4.c.youtube.com
67.218.93.12   v5.lscache4.c.youtube.com
67.218.93.13   v6.lscache4.c.youtube.com
74.125.110.246   v7.lscache4.c.youtube.com
67.218.93.15   v8.lscache4.c.youtube.com
67.218.93.12   v9.lscache4.c.youtube.com
67.218.93.13   v10.lscache4.c.youtube.com
74.125.111.122   v11.lscache4.c.youtube.com
67.218.93.15   v12.lscache4.c.youtube.com
67.218.93.12   v13.lscache4.c.youtube.com
67.218.93.13   v14.lscache4.c.youtube.com
67.218.93.14   v15.lscache4.c.youtube.com
67.218.93.15   v16.lscache4.c.youtube.com
67.218.93.12   v17.lscache4.c.youtube.com
67.218.93.13   v18.lscache4.c.youtube.com
74.125.110.214   v19.lscache4.c.youtube.com
74.125.111.23   v20.lscache4.c.youtube.com
67.218.93.12   v21.lscache4.c.youtube.com
74.125.111.25   v22.lscache4.c.youtube.com
67.218.93.14   v23.lscache4.c.youtube.com
74.125.110.219   v24.lscache4.c.youtube.com
67.218.93.12   v1.lscache5.c.youtube.com
67.218.93.13   v2.lscache5.c.youtube.com
67.218.93.14   v3.lscache5.c.youtube.com
67.218.93.15   v4.lscache5.c.youtube.com
74.125.97.148   v5.lscache5.c.youtube.com
67.218.93.13   v6.lscache5.c.youtube.com
67.218.93.14   v7.lscache5.c.youtube.com
67.218.93.15   v8.lscache5.c.youtube.com
67.218.93.12   v9.lscache5.c.youtube.com
67.218.93.13   v10.lscache5.c.youtube.com
74.125.97.154   v11.lscache5.c.youtube.com
67.218.93.15   v12.lscache5.c.youtube.com
74.125.111.112   v13.lscache5.c.youtube.com
67.218.93.13   v14.lscache5.c.youtube.com
67.218.93.14   v15.lscache5.c.youtube.com
67.218.93.15   v16.lscache5.c.youtube.com
74.125.97.180   v17.lscache5.c.youtube.com
74.125.97.181   v18.lscache5.c.youtube.com
67.218.93.14   v19.lscache5.c.youtube.com
67.218.93.15   v20.lscache5.c.youtube.com
67.218.93.12   v21.lscache5.c.youtube.com
74.125.97.153   v22.lscache5.c.youtube.com
67.218.93.14   v23.lscache5.c.youtube.com
67.218.93.15   v24.lscache5.c.youtube.com
74.125.110.208   v1.lscache6.c.youtube.com
74.125.110.241   v2.lscache6.c.youtube.com
67.218.93.14   v3.lscache6.c.youtube.com
74.125.110.211   v4.lscache6.c.youtube.com
67.218.93.12   v5.lscache6.c.youtube.com
67.218.93.13   v6.lscache6.c.youtube.com
67.218.93.14   v7.lscache6.c.youtube.com
67.218.93.15   v8.lscache6.c.youtube.com
67.218.93.12   v9.lscache6.c.youtube.com
67.218.93.13   v10.lscache6.c.youtube.com
67.218.93.14   v11.lscache6.c.youtube.com
67.218.93.15   v12.lscache6.c.youtube.com
67.218.93.12   v13.lscache6.c.youtube.com
67.218.93.13   v14.lscache6.c.youtube.com
67.218.93.14   v15.lscache6.c.youtube.com
67.218.93.15   v16.lscache6.c.youtube.com
74.125.111.116   v17.lscache6.c.youtube.com
67.218.93.13   v18.lscache6.c.youtube.com
173.194.21.118   v19.lscache6.c.youtube.com
67.218.93.15   v20.lscache6.c.youtube.com
67.218.93.12   v21.lscache6.c.youtube.com
67.218.93.13   v22.lscache6.c.youtube.com
67.218.93.14   v23.lscache6.c.youtube.com
67.218.93.15   v24.lscache6.c.youtube.com
74.125.97.176   v1.lscache7.c.youtube.com
74.125.97.145   v2.lscache7.c.youtube.com
67.218.93.14   v3.lscache7.c.youtube.com
67.218.93.15   v4.lscache7.c.youtube.com
67.218.93.12   v5.lscache7.c.youtube.com
67.218.93.13   v6.lscache7.c.youtube.com
67.218.93.14   v7.lscache7.c.youtube.com
67.218.93.15   v8.lscache7.c.youtube.com
67.218.93.12   v9.lscache7.c.youtube.com
74.125.110.249   v10.lscache7.c.youtube.com
67.218.93.14   v11.lscache7.c.youtube.com
67.218.93.15   v12.lscache7.c.youtube.com
67.218.93.12   v13.lscache7.c.youtube.com
67.218.93.13   v14.lscache7.c.youtube.com
67.218.93.14   v15.lscache7.c.youtube.com
67.218.93.15   v16.lscache7.c.youtube.com
74.125.97.180   v17.lscache7.c.youtube.com
67.218.93.13   v18.lscache7.c.youtube.com
74.125.97.150   v19.lscache7.c.youtube.com
67.218.93.15   v20.lscache7.c.youtube.com
67.218.93.12   v21.lscache7.c.youtube.com
67.218.93.13   v22.lscache7.c.youtube.com
67.218.93.14   v23.lscache7.c.youtube.com
67.218.93.15   v24.lscache7.c.youtube.com
74.125.111.16   v1.lscache8.c.youtube.com
67.218.93.13   v2.lscache8.c.youtube.com
74.125.110.210   v3.lscache8.c.youtube.com
67.218.93.15   v4.lscache8.c.youtube.com
67.218.93.12   v5.lscache8.c.youtube.com
67.218.93.13   v6.lscache8.c.youtube.com
67.218.93.14   v7.lscache8.c.youtube.com
67.218.93.15   v8.lscache8.c.youtube.com
67.218.93.12   v9.lscache8.c.youtube.com
67.218.93.13   v10.lscache8.c.youtube.com
67.218.93.14   v11.lscache8.c.youtube.com
74.125.111.59   v12.lscache8.c.youtube.com
67.218.93.12   v13.lscache8.c.youtube.com
67.218.93.13   v14.lscache8.c.youtube.com
67.218.93.14   v15.lscache8.c.youtube.com
67.218.93.15   v16.lscache8.c.youtube.com
173.194.21.148   v17.lscache8.c.youtube.com
67.218.93.13   v18.lscache8.c.youtube.com
74.125.111.86   v19.lscache8.c.youtube.com
67.218.93.15   v20.lscache8.c.youtube.com
67.218.93.12   v21.lscache8.c.youtube.com
67.218.93.13   v22.lscache8.c.youtube.com
67.218.93.14   v23.lscache8.c.youtube.com
67.218.93.15   v24.lscache8.c.youtube.com
203.208.46.16   r1.pek01s01.c.youtube.com
203.208.46.17   r2.pek01s01.c.youtube.com
203.208.46.18   r3.pek01s01.c.youtube.com
203.208.46.19   r4.pek01s01.c.youtube.com
203.208.46.20   r5.pek01s01.c.youtube.com
203.208.46.21   r6.pek01s01.c.youtube.com
203.208.46.22   r7.pek01s01.c.youtube.com
203.208.46.23   r8.pek01s01.c.youtube.com
203.208.46.24   r9.pek01s01.c.youtube.com
203.208.46.25   r10.pek01s01.c.youtube.com
203.208.46.26   r11.pek01s01.c.youtube.com
203.208.46.27   r12.pek01s01.c.youtube.com
203.208.46.28   r13.pek01s01.c.youtube.com
203.208.46.29   r14.pek01s01.c.youtube.com
203.208.46.30   r15.pek01s01.c.youtube.com
203.208.46.31   r16.pek01s01.c.youtube.com
203.208.46.32   r17.pek01s01.c.youtube.com
203.208.46.33   r18.pek01s01.c.youtube.com
203.208.46.34   r19.pek01s01.c.youtube.com
203.208.46.35   r20.pek01s01.c.youtube.com
203.208.46.36   r21.pek01s01.c.youtube.com
203.208.46.37   r22.pek01s01.c.youtube.com
203.208.46.38   r23.pek01s01.c.youtube.com
203.208.46.39   r24.pek01s01.c.youtube.com