Hi all!
I'm having a weird behavior on my Mint13 laptop: On my own wireless internet connection, everything is working fine. But if I add some new wireless connection, even an open one without encryption, I can connect, ping IP addresses (I use 8.8.8.8 ) but I cannot ping to any DNS name.
ping 8.8.8.8
PING 8.8.8.8 (8.8.8. 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_req=1 ttl=57 time=423 ms
64 bytes from 8.8.8.8: icmp_req=2 ttl=57 time=346 ms
64 bytes from 8.8.8.8: icmp_req=3 ttl=57 time=369 ms
^C
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 346.078/379.832/423.816/32.550 ms
nslookup 8.8.8.8
;; connection timed out; no servers could be reached
Is seems DNS is not resolving to any new connections but on my own everything works fine.
While connected to my own working wifi:
(I'll add the results from another non-working connection when I connect myself to one)
sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo no wireless extensions.
wlan1 IEEE 802.11bg ESSID:"Gateway2Hell"
Mode:Managed Frequency:2.462 GHz Access Point: 28:9A:FA:3D:08:18
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=36/70 Signal level=-74 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:51 Missed beacon:0
eth0 no wireless extensions.
-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet Endereço de HW 00:03:0d:9f:ee:eb
UP BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
IRQ:41 Endereço de E/S:0x6000
lo Link encap:Loopback Local
inet end.: 127.0.0.1 Masc:255.0.0.0
endereço inet6: ::1/128 Escopo:Máquina
UP LOOPBACK RUNNING MTU:16436 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan1 Link encap:Ethernet Endereço de HW 00:10:60:36:23:7c
inet end.: 192.168.0.243 Bcast:192.168.0.255 Masc:255.255.255.0
endereço inet6: fe80::210:60ff:fe36:237c/64 Escopo:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:3177 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:2593 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:2662331 (2.6 MB) TX bytes:436687 (436.6 KB)
-------------------------
* V. querying DHCP...
RTNETLINK answers: File exists
-------------------------
* VI. querying nslookup google.com...
Server: 192.168.0.1
Address: 192.168.0.1#53
Non-authoritative answer:
Name: google.com
Address: 216.58.210.110
The hosts file seems clean and legit.
cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 mint13
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
When I use MATE's network manager to connect to a new wireless connection, it behaves kinda weird: sometimes it does not detect the network (the SSID does not show up in there), or if it does it does not ask me for a password. If I create a new connection and enter everything manually, it will connect but only ping by IP address and not by DNS name.
I've got 2 kernels (2.6.39-02063904-generic and 3.2.66-030266-generic) and it behaves the same way with both of them, so I think we can exclude kernel problems here...
Any help troubleshooting this one, please?
Mint13 MATE: DNS not working for new wireless connections
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Mint13 MATE: DNS not working for new wireless connections
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Bye for now,
Bruno
(Always backup before you screw up :)
Bruno
(Always backup before you screw up :)
-
- Level 4
- Posts: 359
- Joined: Thu Jun 24, 2010 2:22 pm
Re: Mint13 MATE: DNS not working for new wireless connection
Ok, here's the result of from a network I had trouble resolving DNS names:
sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo no wireless extensions.
eth0 no wireless extensions.
wlan1 IEEE 802.11bg ESSID:"CFP Seixal"
Mode:Managed Frequency:2.462 GHz Access Point: 00:0C:F6:16:45:38
Bit Rate=48 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=42/70 Signal level=-68 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:21 Missed beacon:0
-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet Endereço de HW 00:03:0d:9f:ee:eb
UP BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
IRQ:41 Endereço de E/S:0x4000
lo Link encap:Loopback Local
inet end.: 127.0.0.1 Masc:255.0.0.0
endereço inet6: ::1/128 Escopo:Máquina
UP LOOPBACK RUNNING MTU:16436 Métrica:1
pacotes RX:4 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:4 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:0
RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)
wlan1 Link encap:Ethernet Endereço de HW 00:10:60:36:23:7c
inet end.: 192.168.26.18 Bcast:192.168.255.255 Masc:255.255.0.0
endereço inet6: fe80::210:60ff:fe36:237c/64 Escopo:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:262 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:111 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:30030 (30.0 KB) TX bytes:15652 (15.6 KB)
-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
Server: 208.67.222.222
Address: 208.67.222.222#53
Non-authoritative answer:
Name: google.com
Address: 216.58.210.110
The weird thing is: (and I've seen this happening several times)
I connect to a network and ping does not work because DNS does not resolve names. But after running mintWifi.py, it starts to work normally!
The same thing happened before running the script now.
Does anyone know if there is any command on mintWifi.py that resets DNS or does something relative to this?
I'm puzzled and lost here...
sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo no wireless extensions.
eth0 no wireless extensions.
wlan1 IEEE 802.11bg ESSID:"CFP Seixal"
Mode:Managed Frequency:2.462 GHz Access Point: 00:0C:F6:16:45:38
Bit Rate=48 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=42/70 Signal level=-68 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:21 Missed beacon:0
-------------------------
* IV. querying ifconfig...
eth0 Link encap:Ethernet Endereço de HW 00:03:0d:9f:ee:eb
UP BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
IRQ:41 Endereço de E/S:0x4000
lo Link encap:Loopback Local
inet end.: 127.0.0.1 Masc:255.0.0.0
endereço inet6: ::1/128 Escopo:Máquina
UP LOOPBACK RUNNING MTU:16436 Métrica:1
pacotes RX:4 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:4 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:0
RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)
wlan1 Link encap:Ethernet Endereço de HW 00:10:60:36:23:7c
inet end.: 192.168.26.18 Bcast:192.168.255.255 Masc:255.255.0.0
endereço inet6: fe80::210:60ff:fe36:237c/64 Escopo:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:262 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:111 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:30030 (30.0 KB) TX bytes:15652 (15.6 KB)
-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
Server: 208.67.222.222
Address: 208.67.222.222#53
Non-authoritative answer:
Name: google.com
Address: 216.58.210.110
The weird thing is: (and I've seen this happening several times)
I connect to a network and ping does not work because DNS does not resolve names. But after running mintWifi.py, it starts to work normally!
The same thing happened before running the script now.
Does anyone know if there is any command on mintWifi.py that resets DNS or does something relative to this?
I'm puzzled and lost here...
Bye for now,
Bruno
(Always backup before you screw up :)
Bruno
(Always backup before you screw up :)