几天前我使用了宽带连接。我从网络管理器设置了 DSL 电缆连接，使用用户名和密码，我可以完美地连接到互联网。但我发现我无法访问任何 .wordpress.com 博客和一些其他网站。它只显示正在加载，但网页没有出现。
我正在使用 ubuntu 14.04 LTS。
以下是输出ifconfig
eth0 Link encap:Ethernet HWaddr 20:1a:06:e9:69:c8
inet6 addr: fe80::221a:6ff:fee9:69c8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:67065 errors:0 dropped:0 overruns:0 frame:1
TX packets:56506 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:53712544 (53.7 MB) TX bytes:9554010 (9.5 MB)
Interrupt:18
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:10435 errors:0 dropped:0 overruns:0 frame:0
TX packets:10435 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1543246 (1.5 MB) TX bytes:1543246 (1.5 MB)
ppp0 Link encap:Point-to-Point Protocol
inet addr:192.168.73.160 P-t-P:192.168.73.1 Mask:255.255.255.255
inet6 addr: fe80::c838:8a30:c7d4:f54/10 Scope:Link
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
RX packets:59392 errors:0 dropped:0 overruns:0 frame:0
TX packets:56264 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:51344545 (51.3 MB) TX bytes:8071683 (8.0 MB)
wlan0 Link encap:Ethernet HWaddr 9c:d2:1e:a4:55:93
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:91 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:15221 (15.2 KB)
ping另一个无法访问的网站的命令输出：
ping www.rokomari.com
PING www.rokomari.com (184.73.108.203) 56(84) bytes of data.
--- www.rokomari.com ping statistics ---
294 packets transmitted, 0 received, 100% packet loss, time 292999ms
输出ping -c 4 wordpress.com
PING wordpress.com (192.0.78.17) 56(84) bytes of data.
64 bytes from 192.0.78.17: icmp_seq=1 ttl=53 time=72.0 ms
64 bytes from 192.0.78.17: icmp_seq=2 ttl=53 time=72.3 ms
64 bytes from 192.0.78.17: icmp_seq=3 ttl=53 time=72.7 ms
64 bytes from 192.0.78.17: icmp_seq=4 ttl=53 time=71.5 ms
--- wordpress.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 71.526/72.142/72.707/0.545 ms
输出：traceroute --max-hops=10 wordpress.com
traceroute to wordpress.com (192.0.78.9), 10 hops max, 60 byte packets
1 192.168.73.1 (192.168.73.1) 1.413 ms 1.398 ms 1.388 ms
2 192.168.98.41 (192.168.98.41) 2.208 ms 2.203 ms 2.197 ms
3 103.43.150.97 (103.43.150.97) 2.820 ms 2.814 ms 2.802 ms
4 103.43.148.249 (103.43.148.249) 3.538 ms * *
5 * * *
6 * 103.9.136.241 (103.9.136.241) 2.217 ms 2.259 ms
7 t-0-2-0-core2-dhk.novocom-bd.com (103.9.136.249) 2.250 ms 2.991 ms 3.308 ms
8 p-0-1-1-core-sg.novocom-bd.com (103.9.138.249) 61.158 ms 61.140 ms 61.114 ms
9 aes-static-025.1.22.125.airtel.in (125.22.1.25) 71.862 ms 71.858 ms 71.793 ms
10 125.62.187.117 (125.62.187.117) 191.575 ms 191.569 ms 188.738 ms
输出：wget http://wordpress.com
--2015-02-23 19:57:27-- http://wordpress.com/
Resolving wordpress.com (wordpress.com)... 192.0.78.9, 192.0.78.17
Connecting to wordpress.com (wordpress.com)|192.0.78.9|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://wordpress.com/ [following]
--2015-02-23 19:57:28-- https://wordpress.com/
Connecting to wordpress.com (wordpress.com)|192.0.78.9|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: ‘index.html’
[ <=> ] 17,105 49.4KB/s in 0.3s
2015-02-23 19:57:29 (49.4 KB/s) - ‘index.html’ saved [17105]
有人能帮帮我吗？