domain-name-system – 我怎样才能进行主机查找而不是卷曲呢?

有没有人见过这个?请注意,这不仅发生在google.com上,而且发生在我尝试的每个域中.这是一个无线连接(WEP),但我不确定这是如何相关的:
$curl -v google.com
# This takes about 60s to return
* getaddrinfo(3) Failed for google.com:80
* Couldn't resolve host 'google.com'
* Closing connection #0
curl: (6) Couldn't resolve host 'google.com'

$wget google.com
--2011-11-28 14:44:08--  http://google.com/
Resolving google.com... Failed: Name or service not kNown.
wget: unable to resolve host address `google.com'

$ping google.com
PING google.com (209.85.148.147) 56(84) bytes of data.
64 bytes from fra07s07-in-f147.1e100.net (209.85.148.147): icmp_req=2 ttl=54 time=136 ms
64 bytes from fra07s07-in-f147.1e100.net (209.85.148.147): icmp_req=3 ttl=54 time=34.0 ms
64 bytes from fra07s07-in-f147.1e100.net (209.85.148.147): icmp_req=4 ttl=54 time=34.3 ms
64 bytes from fra07s07-in-f147.1e100.net (209.85.148.147): icmp_req=5 ttl=54 time=42.5 ms
64 bytes from fra07s07-in-f147.1e100.net (209.85.148.147): icmp_req=6 ttl=54 time=44.7 ms
64 bytes from fra07s07-in-f147.1e100.net (209.85.148.147): icmp_req=7 ttl=54 time=34.5 ms
^C
--- google.com ping statistics ---
8 packets transmitted,6 received,25% packet loss,time 7007ms
rtt min/avg/max/mdev = 34.063/54.376/136.026/36.758 ms


$host google.com
google.com has address 209.85.148.106
google.com has address 209.85.148.147
google.com has address 209.85.148.99
google.com has address 209.85.148.103
google.com has address 209.85.148.104
google.com has address 209.85.148.105
google.com mail is handled by 30 alt2.aspmx.l.google.com.
google.com mail is handled by 40 alt3.aspmx.l.google.com.
google.com mail is handled by 50 alt4.aspmx.l.google.com.
google.com mail is handled by 10 aspmx.l.google.com.
google.com mail is handled by 20 alt1.aspmx.l.google.com.

$host google.com 192.168.1.201
Using domain server:
Name: 192.168.1.201
Address: 192.168.1.201#53
Aliases: 

google.com has address 209.85.148.103
google.com has address 209.85.148.104
google.com has address 209.85.148.105
google.com has address 209.85.148.106
google.com has address 209.85.148.147
google.com has address 209.85.148.99
google.com mail is handled by 40 alt3.aspmx.l.google.com.
google.com mail is handled by 50 alt4.aspmx.l.google.com.
google.com mail is handled by 10 aspmx.l.google.com.
google.com mail is handled by 20 alt1.aspmx.l.google.com.
google.com mail is handled by 30 alt2.aspmx.l.google.com.

$cat /etc/resolv.conf 
# Generated by NetworkManager
nameserver 192.168.1.201

$cat /etc/hosts
127.0.0.1       localhost
::1             localhost

$netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.1.254   0.0.0.0         UG        0 0          0 wlan0
127.0.0.0       127.0.0.1       255.0.0.0       UG        0 0          0 lo
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 wlan0

基本上任何应用程序(包括Firefox)都无法进行名称查找.更重要的是,如果我将wifi脱机并插入以太网电缆,一切都很好.

解决方法

也许你有一些非常奇怪和限制性的SELinux(或grsecurity ……)规则?

如果没有,请尝试strace -o / tmp / wtf -fF curl -v google.com并尝试从/ tmp / wtf输出文件中发现正在发生的事情.

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