我的电脑发生了一些奇怪的事情。大多数网站无缘无故打不开。浏览器每次都会抛出Server not found.几秒钟后它工作正常，然后又找不到了。该问题也存在于一些使用互联网连接的其他应用程序中（例如系统更新失去连接）。路由器还连接了其他几台可以正常工作的计算机。
这是一个例子：
kiril@kiril-X501A1 ~ $ ping github.com
ping: unknown host github.com
kiril@kiril-X501A1 ~ $ traceroute github.com
github.com: No address associated with hostname
Cannot handle "host" cmdline arg `github.com' on position 1 (argc 1)
kiril@kiril-X501A1 ~ $ traceroute facebook.com
traceroute to facebook.com (69.171.230.68), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 0.378 ms 0.580 ms 0.922 ms
2 * * *
3 81.7.67.65 (81.7.67.65) 3.846 ms 3.934 ms 3.794 ms
4 82-135-180-4.static.zebra.lt (82.135.180.4) 6.851 ms 82-135-182-4.static.zebra.lt (82.135.182.4) 7.238 ms 6.699 ms
5 80.249.209.115 (80.249.209.115) 39.536 ms 38.448 ms 39.025 ms
6 ae1.bb02.ams2.tfbnw.net (31.13.29.90) 39.706 ms ae1.bb01.ams2.tfbnw.net (31.13.29.86) 37.793 ms ae1.bb02.ams2.tfbnw.net (31.13.29.90) 37.701 ms
7 ae8.bb02.lhr2.tfbnw.net (74.119.76.65) 43.270 ms 42.563 ms ae4.bb02.bos2.tfbnw.net (204.15.23.199) 135.523 ms
8 be14.bb01.ewr2.tfbnw.net (74.119.78.142) 129.109 ms 129.290 ms 130.037 ms
9 be29.bb02.dca1.tfbnw.net (74.119.78.164) 133.867 ms be44.bb01.iad3.tfbnw.net (31.13.26.1) 142.009 ms ae15.bb04.dca1.tfbnw.net (74.119.76.26) 138.904 ms
10 be21.bb01.prn2.tfbnw.net (74.119.76.61) 209.282 ms ae28.bb03.prn2.tfbnw.net (31.13.25.149) 223.201 ms 213.090 ms
11 ae0.dr10.prn1.tfbnw.net (31.13.27.53) 208.828 ms ae44.dr05.prn2.tfbnw.net (31.13.27.13) 239.814 ms ae41.dr06.prn2.tfbnw.net (31.13.27.133) 207.633 ms
12 * * *
13 * * *
14 * * *
15 * * *
16 edge-star-mini-shv-17-prn1.facebook.com (69.171.230.68) 207.671 ms 201.389 ms 209.076 ms
kiril@kiril-X501A1 ~ $ traceroute github.com
github.com: No address associated with hostname
Cannot handle "host" cmdline arg `github.com' on position 1 (argc 1)
kiril@kiril-X501A1 ~ $ traceroute github.com
traceroute to github.com (192.30.252.131), 30 hops max, 60 byte packets
1 192.168.0.1 (192.168.0.1) 0.353 ms 0.539 ms 0.884 ms
2 * * *
3 81.7.67.65 (81.7.67.65) 4.295 ms 4.256 ms 4.299 ms
4 s-b6-link.telia.net (213.248.89.157) 26.201 ms 26.205 ms 26.803 ms
5 * * *
6 ae-4-90.edge3.Washington4.Level3.net (4.69.149.210) 143.054 ms ae-3-80.edge3.Washington4.Level3.net (4.69.149.146) 139.265 ms 139.305 ms
7 ae-3-80.edge3.Washington4.Level3.net (4.69.149.146) 139.950 ms 139.889 ms ae-4-90.edge3.Washington4.Level3.net (4.69.149.210) 140.025 ms
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
还有一些有关操作系统的信息：
kiril@kiril-X501A1 ~ $ cat /etc/*-release
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=17
DISTRIB_CODENAME=qiana
DISTRIB_DESCRIPTION="Linux Mint 17 Qiana"
NAME="Ubuntu"
VERSION="14.04.3 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.3 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
cat: /etc/upstream-release: Is a directory
不常见的热门网站：github、facebook、goole 等。有时它会加载某些网站并停止...