Ubuntu 14.04 LTS server: configure virtual network devices [fail]
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Since a few hours I have a problem with the networkdevice at my server. When I (re)boot the server I get the following fail-message:
configure virtual network devices [fail]
A few moments later it waits for network respons. And then it says that it had wait longer then 60 seconds and it will continue with booting.
When I login and when and enter: ifconfig, I only get only the lo.
When I reboot the system again I choose in grub-modus for (recovery) and in the menu I choose to start the network, and then choosing in that same menu to reboot the server.
After login again and when I enter ifconfig I get the lo and the config and I see that it got the ipaddress, netmask and other stuff.
But when I enter that ip-address in the browser then the browser can't get connection with server. Same when I try to login via SSH.
Same thing when I give the server's mac-address a static-ip-address. It get that static-ip-address, but i can't connect to the server.
Untill a few hours ago it al worked fine. I'm not sure, but maybe the problem started when I renamed the hostname in Webmin -> 'network'.
EDIT When I enter: sudo ifup --no-act eth0
I get the message: /etc/network/interface:15: option with empty value
| ifup: coulnd't read interfaces file "/etc/network/interface"
I'll hope someone can help me with this problem
Thanks,
KevinX
14.04 networking server interface virtual
asked May 7 '15 at 6:55
kevinx
652311
add a comment |
up vote
1
down vote
favorite
Since a few hours I have a problem with the networkdevice at my server. When I (re)boot the server I get the following fail-message:
configure virtual network devices [fail]
A few moments later it waits for network respons. And then it says that it had wait longer then 60 seconds and it will continue with booting.
When I login and when and enter: ifconfig, I only get only the lo.
When I reboot the system again I choose in grub-modus for (recovery) and in the menu I choose to start the network, and then choosing in that same menu to reboot the server.
After login again and when I enter ifconfig I get the lo and the config and I see that it got the ipaddress, netmask and other stuff.
But when I enter that ip-address in the browser then the browser can't get connection with server. Same when I try to login via SSH.
Same thing when I give the server's mac-address a static-ip-address. It get that static-ip-address, but i can't connect to the server.
Untill a few hours ago it al worked fine. I'm not sure, but maybe the problem started when I renamed the hostname in Webmin -> 'network'.
EDIT When I enter: sudo ifup --no-act eth0
I get the message: /etc/network/interface:15: option with empty value
| ifup: coulnd't read interfaces file "/etc/network/interface"
I'll hope someone can help me with this problem
Thanks,
KevinX
14.04 networking server interface virtual
asked May 7 '15 at 6:55
kevinx
652311
In my case the "ifup --no-act br0" allowed me to see all the commands that would be executed and one of them was a duplication of adding a default route :) thx a lot. one more command worth mentioning is "ifquery --state". if one of your interfaces which you configured (only configured ones) is missing on the output list then you did something wrong and need to investigate this interface with the previous command
– Pawel Barcik
Mar 5 '16 at 19:00
one more thing worth noting is that you can run manually the output of "ifup --no-act br0" line by line and you will see exactly which line causes problems (pro tip: look for command duplication)
– Pawel Barcik
Mar 5 '16 at 19:17
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
Since a few hours I have a problem with the networkdevice at my server. When I (re)boot the server I get the following fail-message:
configure virtual network devices [fail]
A few moments later it waits for network respons. And then it says that it had wait longer then 60 seconds and it will continue with booting.
When I login and when and enter: ifconfig, I only get only the lo.
When I reboot the system again I choose in grub-modus for (recovery) and in the menu I choose to start the network, and then choosing in that same menu to reboot the server.
After login again and when I enter ifconfig I get the lo and the config and I see that it got the ipaddress, netmask and other stuff.
But when I enter that ip-address in the browser then the browser can't get connection with server. Same when I try to login via SSH.
Same thing when I give the server's mac-address a static-ip-address. It get that static-ip-address, but i can't connect to the server.
Untill a few hours ago it al worked fine. I'm not sure, but maybe the problem started when I renamed the hostname in Webmin -> 'network'.
EDIT When I enter: sudo ifup --no-act eth0
I get the message: /etc/network/interface:15: option with empty value
| ifup: coulnd't read interfaces file "/etc/network/interface"
I'll hope someone can help me with this problem
Thanks,
KevinX
14.04 networking server interface virtual
asked May 7 '15 at 6:55
kevinx
652311
Since a few hours I have a problem with the networkdevice at my server. When I (re)boot the server I get the following fail-message:
configure virtual network devices [fail]
A few moments later it waits for network respons. And then it says that it had wait longer then 60 seconds and it will continue with booting.
When I login and when and enter: ifconfig, I only get only the lo.
When I reboot the system again I choose in grub-modus for (recovery) and in the menu I choose to start the network, and then choosing in that same menu to reboot the server.
After login again and when I enter ifconfig I get the lo and the config and I see that it got the ipaddress, netmask and other stuff.
But when I enter that ip-address in the browser then the browser can't get connection with server. Same when I try to login via SSH.
Same thing when I give the server's mac-address a static-ip-address. It get that static-ip-address, but i can't connect to the server.
Untill a few hours ago it al worked fine. I'm not sure, but maybe the problem started when I renamed the hostname in Webmin -> 'network'.
EDIT When I enter: sudo ifup --no-act eth0
I get the message: /etc/network/interface:15: option with empty value
| ifup: coulnd't read interfaces file "/etc/network/interface"
I'll hope someone can help me with this problem
Thanks,
KevinX
14.04 networking server interface virtual
14.04 networking server interface virtual
asked May 7 '15 at 6:55
kevinx
652311
asked May 7 '15 at 6:55
kevinx
652311
edited May 7 '15 at 8:25
asked May 7 '15 at 6:55
kevinx
652311
asked May 7 '15 at 6:55
kevinx
652311
asked May 7 '15 at 6:55
kevinx
652311
652311
In my case the "ifup --no-act br0" allowed me to see all the commands that would be executed and one of them was a duplication of adding a default route :) thx a lot. one more command worth mentioning is "ifquery --state". if one of your interfaces which you configured (only configured ones) is missing on the output list then you did something wrong and need to investigate this interface with the previous command
– Pawel Barcik
Mar 5 '16 at 19:00
one more thing worth noting is that you can run manually the output of "ifup --no-act br0" line by line and you will see exactly which line causes problems (pro tip: look for command duplication)
– Pawel Barcik
Mar 5 '16 at 19:17
add a comment |
In my case the "ifup --no-act br0" allowed me to see all the commands that would be executed and one of them was a duplication of adding a default route :) thx a lot. one more command worth mentioning is "ifquery --state". if one of your interfaces which you configured (only configured ones) is missing on the output list then you did something wrong and need to investigate this interface with the previous command
– Pawel Barcik
Mar 5 '16 at 19:00
one more thing worth noting is that you can run manually the output of "ifup --no-act br0" line by line and you will see exactly which line causes problems (pro tip: look for command duplication)
– Pawel Barcik
Mar 5 '16 at 19:17
In my case the "ifup --no-act br0" allowed me to see all the commands that would be executed and one of them was a duplication of adding a default route :) thx a lot. one more command worth mentioning is "ifquery --state". if one of your interfaces which you configured (only configured ones) is missing on the output list then you did something wrong and need to investigate this interface with the previous command
– Pawel Barcik
Mar 5 '16 at 19:00
In my case the "ifup --no-act br0" allowed me to see all the commands that would be executed and one of them was a duplication of adding a default route :) thx a lot. one more command worth mentioning is "ifquery --state". if one of your interfaces which you configured (only configured ones) is missing on the output list then you did something wrong and need to investigate this interface with the previous command
– Pawel Barcik
Mar 5 '16 at 19:00
one more thing worth noting is that you can run manually the output of "ifup --no-act br0" line by line and you will see exactly which line causes problems (pro tip: look for command duplication)
– Pawel Barcik
Mar 5 '16 at 19:17
one more thing worth noting is that you can run manually the output of "ifup --no-act br0" line by line and you will see exactly which line causes problems (pro tip: look for command duplication)
– Pawel Barcik
Mar 5 '16 at 19:17
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
I had this situation once.
In my case,
ifup eth0
will show the message
can not find /etc/network/interfaces
But actually the file is exist.
So I tried to copy the interfaces file, delete the original interfaces file, the mv the new file back (still no luck).
So I create the interfaces file from scratch again. This time it works.
edited Mar 11 '16 at 13:16
wittich
785716
answered Mar 11 '16 at 9:24
Jiang Junyu
1
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
I had this situation once.
In my case,
ifup eth0
will show the message
can not find /etc/network/interfaces
But actually the file is exist.
So I tried to copy the interfaces file, delete the original interfaces file, the mv the new file back (still no luck).
So I create the interfaces file from scratch again. This time it works.
edited Mar 11 '16 at 13:16
wittich
785716
answered Mar 11 '16 at 9:24
Jiang Junyu
1
add a comment |
up vote
0
down vote
I had this situation once.
In my case,
ifup eth0
will show the message
can not find /etc/network/interfaces
But actually the file is exist.
So I tried to copy the interfaces file, delete the original interfaces file, the mv the new file back (still no luck).
So I create the interfaces file from scratch again. This time it works.
edited Mar 11 '16 at 13:16
wittich
785716
answered Mar 11 '16 at 9:24
Jiang Junyu
1
add a comment |
up vote
0
down vote
up vote
0
down vote
I had this situation once.
In my case,
ifup eth0
will show the message
can not find /etc/network/interfaces
But actually the file is exist.
So I tried to copy the interfaces file, delete the original interfaces file, the mv the new file back (still no luck).
So I create the interfaces file from scratch again. This time it works.
edited Mar 11 '16 at 13:16
wittich
785716
answered Mar 11 '16 at 9:24
Jiang Junyu
1
I had this situation once.
In my case,
ifup eth0
will show the message
can not find /etc/network/interfaces
But actually the file is exist.
So I tried to copy the interfaces file, delete the original interfaces file, the mv the new file back (still no luck).
So I create the interfaces file from scratch again. This time it works.
edited Mar 11 '16 at 13:16
wittich
785716
answered Mar 11 '16 at 9:24
Jiang Junyu
1
edited Mar 11 '16 at 13:16
wittich
785716
edited Mar 11 '16 at 13:16
wittich
785716
edited Mar 11 '16 at 13:16
wittich
785716
785716
answered Mar 11 '16 at 9:24
Jiang Junyu
1
answered Mar 11 '16 at 9:24
Jiang Junyu
1
answered Mar 11 '16 at 9:24
Jiang Junyu
1
1
add a comment |
add a comment |
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In my case the "ifup --no-act br0" allowed me to see all the commands that would be executed and one of them was a duplication of adding a default route :) thx a lot. one more command worth mentioning is "ifquery --state". if one of your interfaces which you configured (only configured ones) is missing on the output list then you did something wrong and need to investigate this interface with the previous command
– Pawel Barcik
Mar 5 '16 at 19:00
one more thing worth noting is that you can run manually the output of "ifup --no-act br0" line by line and you will see exactly which line causes problems (pro tip: look for command duplication)
– Pawel Barcik
Mar 5 '16 at 19:17