Ubuntu 16.04 internet not working but SSH works after upgrade
I just upgraded from 14.04 to 16.04 but now the internet does not work.
I am able to SSH into the box.
I can ping 8.8.8.8
I have tried sudo dpkg-reconfigure resolvconf and sudo reboot but that didn't resolve it.
I have also tried
sudo rm /etc/resolv.conf
sudo ln -s ../run/resolvconf/resolv.conf /etc/resolv.conf
sudo resolvconf -u
And still nothing
EDIT:
ip addr show outputs
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:26:6c:f7:b2:b8 brd ff:ff:ff:ff:ff:ff
inet 209.123.74.69/27 brd 209.123.74.95 scope global em1
valid_lft forever preferred_lft forever
inet6 fe80::226:6cff:fef7:b2b8/64 scope link
valid_lft forever preferred_lft forever
3: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 00:26:6c:f7:b2:b9 brd ff:ff:ff:ff:ff:ff
ifconfig outputs
em1 Link encap:Ethernet HWaddr 00:26:6c:f7:b2:b8
inet addr:209.123.74.69 Bcast:209.123.74.95 Mask:255.255.255.224
inet6 addr: fe80::226:6cff:fef7:b2b8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12013 errors:0 dropped:10 overruns:0 frame:0
TX packets:7250 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2076402 (2.0 MB) TX bytes:1061991 (1.0 MB)
Memory:c0000000-c001ffff
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:13464 errors:0 dropped:0 overruns:0 frame:0
TX packets:13464 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:1003144 (1.0 MB) TX bytes:1003144 (1.0 MB)
and the /etc/resolv.conf is empty
16.04 upgrade dns
asked 2 days ago
nadermx
1256
add a comment |
I just upgraded from 14.04 to 16.04 but now the internet does not work.
I am able to SSH into the box.
I can ping 8.8.8.8
I have tried sudo dpkg-reconfigure resolvconf and sudo reboot but that didn't resolve it.
I have also tried
sudo rm /etc/resolv.conf
sudo ln -s ../run/resolvconf/resolv.conf /etc/resolv.conf
sudo resolvconf -u
And still nothing
EDIT:
ip addr show outputs
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:26:6c:f7:b2:b8 brd ff:ff:ff:ff:ff:ff
inet 209.123.74.69/27 brd 209.123.74.95 scope global em1
valid_lft forever preferred_lft forever
inet6 fe80::226:6cff:fef7:b2b8/64 scope link
valid_lft forever preferred_lft forever
3: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 00:26:6c:f7:b2:b9 brd ff:ff:ff:ff:ff:ff
ifconfig outputs
em1 Link encap:Ethernet HWaddr 00:26:6c:f7:b2:b8
inet addr:209.123.74.69 Bcast:209.123.74.95 Mask:255.255.255.224
inet6 addr: fe80::226:6cff:fef7:b2b8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12013 errors:0 dropped:10 overruns:0 frame:0
TX packets:7250 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2076402 (2.0 MB) TX bytes:1061991 (1.0 MB)
Memory:c0000000-c001ffff
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:13464 errors:0 dropped:0 overruns:0 frame:0
TX packets:13464 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:1003144 (1.0 MB) TX bytes:1003144 (1.0 MB)
and the /etc/resolv.conf is empty
16.04 upgrade dns
asked 2 days ago
nadermx
1256
What is the content of /etc/resolv.conf? What does "ip addr show" give? And just to be sure, you are not able to resolve domain names right? (e.g., ping google.com)
– Eric Mintz
2 days ago
@EricMintz went ahead and updated answer with the outputs
– nadermx
2 days ago
add a comment |
I just upgraded from 14.04 to 16.04 but now the internet does not work.
I am able to SSH into the box.
I can ping 8.8.8.8
I have tried sudo dpkg-reconfigure resolvconf and sudo reboot but that didn't resolve it.
I have also tried
sudo rm /etc/resolv.conf
sudo ln -s ../run/resolvconf/resolv.conf /etc/resolv.conf
sudo resolvconf -u
And still nothing
EDIT:
ip addr show outputs
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:26:6c:f7:b2:b8 brd ff:ff:ff:ff:ff:ff
inet 209.123.74.69/27 brd 209.123.74.95 scope global em1
valid_lft forever preferred_lft forever
inet6 fe80::226:6cff:fef7:b2b8/64 scope link
valid_lft forever preferred_lft forever
3: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 00:26:6c:f7:b2:b9 brd ff:ff:ff:ff:ff:ff
ifconfig outputs
em1 Link encap:Ethernet HWaddr 00:26:6c:f7:b2:b8
inet addr:209.123.74.69 Bcast:209.123.74.95 Mask:255.255.255.224
inet6 addr: fe80::226:6cff:fef7:b2b8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12013 errors:0 dropped:10 overruns:0 frame:0
TX packets:7250 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2076402 (2.0 MB) TX bytes:1061991 (1.0 MB)
Memory:c0000000-c001ffff
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:13464 errors:0 dropped:0 overruns:0 frame:0
TX packets:13464 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:1003144 (1.0 MB) TX bytes:1003144 (1.0 MB)
and the /etc/resolv.conf is empty
16.04 upgrade dns
asked 2 days ago
nadermx
1256
I just upgraded from 14.04 to 16.04 but now the internet does not work.
I am able to SSH into the box.
I can ping 8.8.8.8
I have tried sudo dpkg-reconfigure resolvconf and sudo reboot but that didn't resolve it.
I have also tried
sudo rm /etc/resolv.conf
sudo ln -s ../run/resolvconf/resolv.conf /etc/resolv.conf
sudo resolvconf -u
And still nothing
EDIT:
ip addr show outputs
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:26:6c:f7:b2:b8 brd ff:ff:ff:ff:ff:ff
inet 209.123.74.69/27 brd 209.123.74.95 scope global em1
valid_lft forever preferred_lft forever
inet6 fe80::226:6cff:fef7:b2b8/64 scope link
valid_lft forever preferred_lft forever
3: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 00:26:6c:f7:b2:b9 brd ff:ff:ff:ff:ff:ff
ifconfig outputs
em1 Link encap:Ethernet HWaddr 00:26:6c:f7:b2:b8
inet addr:209.123.74.69 Bcast:209.123.74.95 Mask:255.255.255.224
inet6 addr: fe80::226:6cff:fef7:b2b8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12013 errors:0 dropped:10 overruns:0 frame:0
TX packets:7250 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2076402 (2.0 MB) TX bytes:1061991 (1.0 MB)
Memory:c0000000-c001ffff
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:13464 errors:0 dropped:0 overruns:0 frame:0
TX packets:13464 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:1003144 (1.0 MB) TX bytes:1003144 (1.0 MB)
and the /etc/resolv.conf is empty
16.04 upgrade dns
16.04 upgrade dns
asked 2 days ago
nadermx
1256
asked 2 days ago
nadermx
1256
edited 2 days ago
asked 2 days ago
nadermx
1256
asked 2 days ago
nadermx
1256
asked 2 days ago
nadermx
1256
1256
What is the content of /etc/resolv.conf? What does "ip addr show" give? And just to be sure, you are not able to resolve domain names right? (e.g., ping google.com)
– Eric Mintz
2 days ago
@EricMintz went ahead and updated answer with the outputs
– nadermx
2 days ago
add a comment |
What is the content of /etc/resolv.conf? What does "ip addr show" give? And just to be sure, you are not able to resolve domain names right? (e.g., ping google.com)
– Eric Mintz
2 days ago
@EricMintz went ahead and updated answer with the outputs
– nadermx
2 days ago
What is the content of /etc/resolv.conf? What does "ip addr show" give? And just to be sure, you are not able to resolve domain names right? (e.g., ping google.com)
– Eric Mintz
2 days ago
What is the content of /etc/resolv.conf? What does "ip addr show" give? And just to be sure, you are not able to resolve domain names right? (e.g., ping google.com)
– Eric Mintz
2 days ago
@EricMintz went ahead and updated answer with the outputs
– nadermx
2 days ago
@EricMintz went ahead and updated answer with the outputs
– nadermx
2 days ago
add a comment |
1 Answer
1
active
oldest
votes
The empty /etc/resolv.conf file looks like issue - that's where you should see something like
nameserver 8.8.8.8
nameserver 8.8.4.4
Add those into it and see if that resolves the internet connectivity issue. If it does, you can make the change permanent by changing it in the Network Manager settings.
Also you can add ones for IPv6:
nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844
answered 2 days ago
Eric Mintz
1619
add a comment |
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1 Answer
1
active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The empty /etc/resolv.conf file looks like issue - that's where you should see something like
nameserver 8.8.8.8
nameserver 8.8.4.4
Add those into it and see if that resolves the internet connectivity issue. If it does, you can make the change permanent by changing it in the Network Manager settings.
Also you can add ones for IPv6:
nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844
answered 2 days ago
Eric Mintz
1619
add a comment |
The empty /etc/resolv.conf file looks like issue - that's where you should see something like
nameserver 8.8.8.8
nameserver 8.8.4.4
Add those into it and see if that resolves the internet connectivity issue. If it does, you can make the change permanent by changing it in the Network Manager settings.
Also you can add ones for IPv6:
nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844
answered 2 days ago
Eric Mintz
1619
add a comment |
The empty /etc/resolv.conf file looks like issue - that's where you should see something like
nameserver 8.8.8.8
nameserver 8.8.4.4
Add those into it and see if that resolves the internet connectivity issue. If it does, you can make the change permanent by changing it in the Network Manager settings.
Also you can add ones for IPv6:
nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844
answered 2 days ago
Eric Mintz
1619
The empty /etc/resolv.conf file looks like issue - that's where you should see something like
nameserver 8.8.8.8
nameserver 8.8.4.4
Add those into it and see if that resolves the internet connectivity issue. If it does, you can make the change permanent by changing it in the Network Manager settings.
Also you can add ones for IPv6:
nameserver 2001:4860:4860::8888
nameserver 2001:4860:4860::8844
answered 2 days ago
Eric Mintz
1619
answered 2 days ago
Eric Mintz
1619
answered 2 days ago
Eric Mintz
1619
answered 2 days ago
Eric Mintz
1619
1619
add a comment |
add a comment |
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What is the content of /etc/resolv.conf? What does "ip addr show" give? And just to be sure, you are not able to resolve domain names right? (e.g., ping google.com)
– Eric Mintz
2 days ago
@EricMintz went ahead and updated answer with the outputs
– nadermx
2 days ago