Linux Mint Forums

by **lunasspecto** on Mon Jun 11, 2012 8:33 pm

I'm currently living with my father, and he recently switched his ISP to Comcast. Since then I've been unable to resolve domain names on the 32-bit Cinnamon edition of Linux Mint most of the time. Occasionally, for no apparent reason, I get a few minutes where everything works fine, but it never lasts. The problem persists whether I'm using Firefox, Chromium, or Lynx. It also makes it difficult for me to run apt-get updates and upgrades. Oddly, I have no problem with the network when I'm using either Microsoft Windows 7 or the latest "Slacko" build of Puppy Linux. It's not that I have any trouble connecting to the wireless network, either, it's just that performing domain name lookups on the network usually fails. I've taken to doing most of my casual browsing in the Tor Browser, because connecting to web sites via the Tor network works every time. I would, however, like to be able to connect to web sites directly so I can use Flash and such things again.

I ran the mintWifi script and this was the output:

Code: Select all: ------------------------- * I. scanning WIFI PCI devices... -- Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01) ==> PCI ID = 10ec:8176 (rev 01) ------------------------- * II. querying ndiswrapper... ------------------------- * III. querying iwconfig... lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"HOME-CCB2" Mode:Managed Frequency:2.462 GHz Access Point: 00:1D:D1:51:CC:B0 Bit Rate=65 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr=2347 B Fragment thr:off Encryption key:off Power Management:off Link Quality=56/70 Signal level=-54 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:3 Missed beacon:0 eth0 no wireless extensions. ------------------------- * IV. querying ifconfig... eth0 Link encap:Ethernet HWaddr e4:11:5b:f7:cc:2d UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:44 Base address:0x4000 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:16436 Metric:1 RX packets:15448 errors:0 dropped:0 overruns:0 frame:0 TX packets:15448 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7853584 (7.8 MB) TX bytes:7853584 (7.8 MB) wlan0 Link encap:Ethernet HWaddr d0:df:9a:f4:dc:12 inet addr:10.0.0.3 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::d2df:9aff:fef4:dc12/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1562 errors:0 dropped:0 overruns:0 frame:0 TX packets:1314 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1685754 (1.6 MB) TX bytes:368883 (368.8 KB) ------------------------- * V. querying DHCP... Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service smbd reload Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the reload(8) utility, e.g. reload smbd RTNETLINK answers: File exists ------------------------- * VI. querying nslookup google.com... ;; Got SERVFAIL reply from 75.75.75.75, trying next server Server: 75.75.75.75 Address: 75.75.75.75#53 ** server can't find google.com: NXDOMAIN

Anybody have any ideas? Sorry if I missed a post where this problem has already been addressed.

by **mikkoh79** on Tue Jun 12, 2012 2:25 pm

You can try this and see if it helps:

"DHCP + DNS problems in Ubuntu 12.04"
http://ubuntuforums.org/showthread.php?t=1996379

Mikko

Linux Mint Forums

Domain name lookups failing (most of the time)

Domain name lookups failing (most of the time)

Re: Domain name lookups failing (most of the time)

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