eth: error fetching interface information: Device not found
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I have an ubuntu 18.04 linux server.
Why does the command(ifconfig eth) says Device not found whereas this command(ifconfig eth0) works?
$ ifconfig eth
eth: error fetching interface information: Device not found
$ ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
inet 96.114.208.69 netmask 255.255.255.128 broadcast
96.114.208.127
inet6 fe80::8a9:12ff:fe5b:c324 prefixlen 64 scopeid 0x20<link>
ether 0a:a9:12:5b:c3:24 txqueuelen 1000 (Ethernet)
RX packets 5126229 bytes 7622036755 (7.6 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1823543 bytes 124228703 (124.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Note: I tried the same thing on my other 14.04 linux server. Both commands are working
ubuntu ifconfig interface
edited Aug 17 at 12:48
GAD3R
22.8k154895
asked Aug 17 at 11:42
Nani
173
add a comment |Â
up vote
-1
down vote
favorite
I have an ubuntu 18.04 linux server.
Why does the command(ifconfig eth) says Device not found whereas this command(ifconfig eth0) works?
$ ifconfig eth
eth: error fetching interface information: Device not found
$ ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
inet 96.114.208.69 netmask 255.255.255.128 broadcast
96.114.208.127
inet6 fe80::8a9:12ff:fe5b:c324 prefixlen 64 scopeid 0x20<link>
ether 0a:a9:12:5b:c3:24 txqueuelen 1000 (Ethernet)
RX packets 5126229 bytes 7622036755 (7.6 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1823543 bytes 124228703 (124.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Note: I tried the same thing on my other 14.04 linux server. Both commands are working
ubuntu ifconfig interface
edited Aug 17 at 12:48
GAD3R
22.8k154895
asked Aug 17 at 11:42
Nani
173
Post the output from the working system
– Raman Sailopal
Aug 17 at 12:11
add a comment |Â
up vote
-1
down vote
favorite
up vote
-1
down vote
favorite
I have an ubuntu 18.04 linux server.
Why does the command(ifconfig eth) says Device not found whereas this command(ifconfig eth0) works?
$ ifconfig eth
eth: error fetching interface information: Device not found
$ ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
inet 96.114.208.69 netmask 255.255.255.128 broadcast
96.114.208.127
inet6 fe80::8a9:12ff:fe5b:c324 prefixlen 64 scopeid 0x20<link>
ether 0a:a9:12:5b:c3:24 txqueuelen 1000 (Ethernet)
RX packets 5126229 bytes 7622036755 (7.6 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1823543 bytes 124228703 (124.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Note: I tried the same thing on my other 14.04 linux server. Both commands are working
ubuntu ifconfig interface
edited Aug 17 at 12:48
GAD3R
22.8k154895
asked Aug 17 at 11:42
Nani
173
I have an ubuntu 18.04 linux server.
Why does the command(ifconfig eth) says Device not found whereas this command(ifconfig eth0) works?
$ ifconfig eth
eth: error fetching interface information: Device not found
$ ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
inet 96.114.208.69 netmask 255.255.255.128 broadcast
96.114.208.127
inet6 fe80::8a9:12ff:fe5b:c324 prefixlen 64 scopeid 0x20<link>
ether 0a:a9:12:5b:c3:24 txqueuelen 1000 (Ethernet)
RX packets 5126229 bytes 7622036755 (7.6 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1823543 bytes 124228703 (124.2 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Note: I tried the same thing on my other 14.04 linux server. Both commands are working
ubuntu ifconfig interface
ubuntu ifconfig interface
edited Aug 17 at 12:48
GAD3R
22.8k154895
asked Aug 17 at 11:42
Nani
173
edited Aug 17 at 12:48
GAD3R
22.8k154895
asked Aug 17 at 11:42
Nani
173
edited Aug 17 at 12:48
GAD3R
22.8k154895
edited Aug 17 at 12:48
GAD3R
22.8k154895
edited Aug 17 at 12:48
GAD3R
22.8k154895
22.8k154895
asked Aug 17 at 11:42
Nani
173
asked Aug 17 at 11:42
Nani
173
asked Aug 17 at 11:42
Nani
173
173
Post the output from the working system
– Raman Sailopal
Aug 17 at 12:11
add a comment |Â
Post the output from the working system
– Raman Sailopal
Aug 17 at 12:11
Post the output from the working system
– Raman Sailopal
Aug 17 at 12:11
Post the output from the working system
– Raman Sailopal
Aug 17 at 12:11
add a comment |Â
1 Answer
1
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up vote
2
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Because you don' t have any eth device, but you have the eth0.
If you use ifconfig -a or ip addr you can see all the devices available.
edited Aug 17 at 16:09
RobotJohnny
675216
answered Aug 17 at 12:19
Scorpion
543
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)
– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)
– Nani
Aug 17 at 14:06
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output ofifconfig -a?
– Scorpion
Aug 17 at 19:00
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
Because you don' t have any eth device, but you have the eth0.
If you use ifconfig -a or ip addr you can see all the devices available.
edited Aug 17 at 16:09
RobotJohnny
675216
answered Aug 17 at 12:19
Scorpion
543
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)
– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)
– Nani
Aug 17 at 14:06
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output ofifconfig -a?
– Scorpion
Aug 17 at 19:00
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
add a comment |Â
up vote
2
down vote
Because you don' t have any eth device, but you have the eth0.
If you use ifconfig -a or ip addr you can see all the devices available.
edited Aug 17 at 16:09
RobotJohnny
675216
answered Aug 17 at 12:19
Scorpion
543
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)
– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)
– Nani
Aug 17 at 14:06
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output ofifconfig -a?
– Scorpion
Aug 17 at 19:00
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
add a comment |Â
up vote
2
down vote
up vote
2
down vote
Because you don' t have any eth device, but you have the eth0.
If you use ifconfig -a or ip addr you can see all the devices available.
edited Aug 17 at 16:09
RobotJohnny
675216
answered Aug 17 at 12:19
Scorpion
543
Because you don' t have any eth device, but you have the eth0.
If you use ifconfig -a or ip addr you can see all the devices available.
edited Aug 17 at 16:09
RobotJohnny
675216
answered Aug 17 at 12:19
Scorpion
543
edited Aug 17 at 16:09
RobotJohnny
675216
edited Aug 17 at 16:09
RobotJohnny
675216
edited Aug 17 at 16:09
RobotJohnny
675216
675216
answered Aug 17 at 12:19
Scorpion
543
answered Aug 17 at 12:19
Scorpion
543
answered Aug 17 at 12:19
Scorpion
543
543
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)
– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)
– Nani
Aug 17 at 14:06
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output ofifconfig -a?
– Scorpion
Aug 17 at 19:00
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
add a comment |Â
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)
– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)
– Nani
Aug 17 at 14:06
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output ofifconfig -a?
– Scorpion
Aug 17 at 19:00
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
on ubuntu 14.04 server, both commands returns same output
– Nani
Aug 17 at 14:03
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073083 errors:0 dropped:0 overruns:0 frame:0 TX packets:17790249 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628310363 (628.3 MB) TX bytes:25682765383 (25.6 GB)– Nani
Aug 17 at 14:05
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)– Nani
Aug 17 at 14:06
ubuntu@ip-96-114-208-17:~$ ifconfig eth0 eth0 Link encap:Ethernet HWaddr 0a:c6:8c:f3:88:84 inet addr:96.114.208.17 Bcast:96.114.208.127 Mask:255.255.255.128 inet6 addr: fe80::8c6:8cff:fef3:8884/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 RX packets:3073247 errors:0 dropped:0 overruns:0 frame:0 TX packets:17792171 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:628338790 (628.3 MB) TX bytes:25685051888 (25.6 GB)– Nani
Aug 17 at 14:06
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output of
ifconfig -a ?– Scorpion
Aug 17 at 19:00
In the question you said that the output is different and that you are using ubuntu 18.04 server and not the 14.04. What is the output of
ifconfig -a ?– Scorpion
Aug 17 at 19:00
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
@Nani it's probably a good idea to omit your public IP address from your PS1 (since it contains your IP) and the output of ifconfig. Also formatting in a comment can be difficult to read, so you would likely get a better response if you're to amend your question with those outputs rather than in the comments :)
– RobotJohnny
Aug 20 at 8:13
add a comment |Â
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Post the output from the working system
– Raman Sailopal
Aug 17 at 12:11