Questions tagged [eth0]

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RTNETLINK: Device or resource busy - DELL 2950

I cant start second NIC on Dell Poweredge 2950, OMSA installed, the NIC cards is BCM5708C ,version of Operating System Centos 6.7. The first card worling correctly [root@alfa ~]# ifup eth1 RTNETLINK ...
17 votes
7 answers
105k views

CentOS ifcfg-eth0 config file deleted. Utility to recreate it?

On CentOS I no longer have a ifcfg-eth0 configuration file (I deleted it). When I run system-configure-network it shows no interfaces that I can edit. How can I recreate the ifcfg-eth0 configuration ...
10 votes
6 answers
56k views

CentOS: eth0 not starting on boot

Whenever I reboot a CentOS Hyper-V VM, eth0 does not start automatically. All I need to do is perform ifup eth0 and all is fixed, but that isn't feasible from ssh! I am starting in runlevel 3. [root@...
1 vote
1 answer
5k views

Linux Reset adapter

I have centos 7.3, and get these errors, why is this [ 888.884795] e1000 0000:00:03.0 enp0s3: Reset adapter [ 890.923975] e1000: enp0s3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [ 1130....
0 votes
0 answers
48 views

How to force the use of an ip of my server [duplicate]

How to force the use of an ip of my server eth0:1, if my server interoge example google.com when i use my php scripts, the ip that google must see is eth0:1 # The primary network interface auto eth0 ...
0 votes
3 answers
20k views

Can't get an IP address

I'm running Ubuntu 9.04. I have an onboard network card. The computer usually boots perfectly, but today, I don't have an IP address. The light is on, on the network card as well as the switch. Other ...
0 votes
2 answers
1k views

How to change Google compute instance primary network device eth0 netmask /32

When I create an instance in the default VPC, and check ifconfig, it says netmask is /32, as shown below: eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1460 inet 10.138.0.2 ...
0 votes
1 answer
5k views

Added eth0:0 configuration but fails on ifup with "RTNETLINK answers: file exists"

I have an Ubuntu Server I'm adding some interfaces for and I can't figure out what I am be missing. Here's my /etc/network/interfaces/ auto lo iface lo inet loopback # The primary network interface ...
1 vote
0 answers
316 views

CentOS guest eth0 limited to 100Mbps in XenServer host

The host shows a bond of 2Gbps, but the CentOS guest only has 100Mbps according to dd. Using ethtool the only information is that the link exists (which I gather is correct for a guest VM). Xen ...
0 votes
1 answer
5k views

dhclient: No broadcast interfaces found, but eth0 is up and broadcast

I'm experiencing a common problem with dhclient. But I wasn't able to find a clear solution to this problem. System: ReadyNas RN104 Stock Debian for armhf Just upgraded to Debian Jessie Self-built ...
3 votes
2 answers
6k views

Can't set a second network interface on a second ethernet port Debian 3.16

My goal is to set two ethernet interfaces on two different ports and with two differents static IP on the same network. The matter is that one port will become reachable by the two IPs, the other won'...
0 votes
1 answer
146 views

Resetting network interfaces [closed]

I am using vmware workstation to create virtual network. Many of the virtual machines are using 3-4 network interfaces. I also wanted to put ubuntu 9.10 OS in two different places. Hence I cloned ...
20 votes
4 answers
122k views

How to "restart" particular network interface on RHEL?

In RHEL, instead of using service network restart command, how can i restart a particular network interface, lets say "eth1", with only one command. "Only one command" because that is the only ...
1 vote
0 answers
51 views

Is it possible to create a second network device with a specific name?

Due to a licence server requirement I need to have an eth0 or eth1 named network device. However, my current configuration only has a network device named enp8s0. I am using a CentOS 7 linux system. ...
1 vote
2 answers
4k views

forward eth0 traffic over tun0

I'm trying to setup a raspberry pi 3 as a vpn access point(?) So far I have wlan0 configured to connect to a mobile hotspot, when this is connected openvpn connects to the vpn server. This works fine,...
1 vote
0 answers
7k views

Failed to bring up eth0; can't establish any network connections

So for 1,5 years now I was running a DigitalOcean droplet without any problems. did apt-get upgrade several times, changed some things - all fine! Last night suddenly all my alarms went off and my ...
-2 votes
1 answer
90 views

Connected to router but without internet [closed]

My Linux Mint 17 box is connected to a router via eth0, of which is connected to the internet. However, my box cannot access websites or ping google.com etc. I am sure the problem is with the DNS ...
0 votes
1 answer
127 views

how to disable ethernet interface eth5 permanently and how my added routes in rc.local file is unset when i reboot machine

actually my machine having 3 interface cards eth0 eth4 eth5 where eth0--local ip and eth4--wan Ip1 and eth5--wan ip5 but i want to disable permanent eth5 and i have added some routes in rc,local file ...
5 votes
1 answer
1k views

Reset eth0 to move ubuntu server 14.04

New Ubuntu Server 14.04 instance for installation on a dedicated server. Everything required is setup as a vbox guest then I add the drive to the allocated server. When I was using 12.04, my last step ...
1 vote
0 answers
775 views

Direct all traffic between Eth0:1 interface and VPN Tun0

If answered correctly this question will show you how to link a 2nd public IP address on a machine to a VPN server tunnel on that machine, so that the remote VPN client (running a server), sees this ...
0 votes
0 answers
10k views

*-network UNCLAIMED : How can I fix this issue

Out of the blue my second ethernet port stopped working. Both of them are part of the motherboard. I can see both of the ports in bios. They were working, but I was using only one of them up to now. ...
86 votes
4 answers
152k views

How to reload default Mac OSX routing table without rebooting

Greetings, I'm using vpnc for a VPN client. I'm also doing some tricky things with route to make sure I can still access my local network, etc. etc. (the particulars here are not very important). ...
0 votes
2 answers
655 views

How to best monitor/log problems on eth0?

I have manually configured an email server - very simple config and I have done no fancy networking. I simply opened up only the relevant ports via iptables. Once every 10-15 days however, eth0 ...
-2 votes
2 answers
1k views

I did 'ifdown eth0' and...I can't connect my instance [duplicate]

I should have run ifdown eth0 && ifup eth0, but I just ran ifdown eth0. Can I connect to my instance and run ifup eth0? What should I do?
1 vote
2 answers
2k views

Haproxy backend servers on different interfaces

I have a haproxy server which gets limited to some 60k connections. I think it is because of ephemeral port limit as I have 1:1 connection mapping, so all my outgoing connections go to the same server....
-1 votes
1 answer
2k views

Vagrant Determining IP information for eth2... failed [closed]

Im running a vagrant file to bring up a CentOS Virtual Box on OSX, but when running vagrant up it always fails at default: Configuring and enabling network interfaces... with the error: The following ...
2 votes
0 answers
214 views

Production servers can suddenly not access the internet anymore

Problem All Production Servers were suddenly not able to access the internet anymore, while four other Servers connected to the same VLAN and same eth0 settings can. Figure 1: System 1 represents ...
0 votes
0 answers
206 views

ethernet RX/TX drops to zero, is it normal? No problems at all discovered

I am using Debian Wheezy 7.1 [3.2.0-4-amd64 #1 SMP Debian 3.2.46-1+deb7u1 x86_64 GNU/Linux] and when monitoring eth0 via Slurm or built-in System monitor I am getting: Current RX Speed: 1883.11 KB/s ...
-1 votes
2 answers
152 views

Change IP Address of a CentOS System [closed]

I have a unmanaged Dedicated CentOS Server running and I've been trying to get a new IP Address for it. My hosting provider allowed me to buy a new IP Address but it's up to me to actually change it ...
-1 votes
2 answers
109 views

Trying to bind a port on a completely different IP yet says it is in use

My host has given me a range of usable IP's for example (10.1.2.100 - 10.1.2.105). These did not come pre-bound to the OS, so I manually had to bind them. The only problem I am having is that when I ...
0 votes
1 answer
274 views

Server with multiple ipv4 addresses adding ipv6

I've got a dedicated Centos 6.5 server with nginx and 2 ip-addresses (these are 2 ip(v4)-failover addresses from OVH) for hosting 2 different websites on the same server. I want to add ipv6 addresses ...
0 votes
2 answers
3k views

Problems with IP Block Proxmox on OVH

I am using Proxmox. That should be clear by the title. I have developed a software program in vb.net that generates network configurations, and I just copy and paste to the correct files. I am using ...
0 votes
1 answer
156 views

looking for ftp client or web browser which can assign network interface

Does anyone know of an ftp client (or web browser), which allows me to specify (or assign) a network interface explicitly (like eth1 for example) during usage? Something for Linux would be good.
36 votes
3 answers
171k views

How to Ping explicitly from eth1 instead of eth0

I'm trying to execute a ping with eth1, but the program uses eth0(the default network device). Any tips, tricks, or alternate techniques available?
2 votes
2 answers
5k views

How do I configure Xen's virtualization of interfaces (eth0 to peth0)?

I installed Xen a while ago but had not yet booted up with the hypervisor. Well I did yesterday and all hell broke loose. I completely lost internet connectivity on my server because of Xen. When I ...
0 votes
2 answers
2k views

Ucarp start error on Centos 6 : "You must supply a valid host id"

I'm trying to get ucarp working on 2 Centos 6 servers running Apache. I've configured both /etc/sysconfig/carp/vip-001.conf and /etc/sysconfig/network-scripts/eth0 and eth0:0 as such on serv1: vip-...
2 votes
1 answer
16k views

How to enable eth0 on a cloned RHEL VM running in Windows Server 2012?

Due to a critical personnel shortage, I (not a willing sysadmin!) have been given a RHEL 6.1 VM image with the request that it be migrated to a server running Windows Server 2012 with HyperV. The ...
1 vote
2 answers
180 views

Cannot attach CentOS VMs via DHCP following router swap

I recently swapped out an old Netgear modem/wireless router and replaced with a ZyXel P660HW-T1 supplied by our ISP. I have configured it so that the new router has the same IP address, subnet mask, ...
2 votes
2 answers
5k views

Debian: Can't bring eth0 down or up with ifdown or ifup

I can't bring eth0 down or up with ifdown or ifup ifdown: interface eth0 not configured but ifconfig shows me eth0 Link encap:Ethernet HWaddr 00:16:3e:4d:09:5f inet addr:192.168.0.3 ...
0 votes
2 answers
967 views

Fedora 15: em1 recently dissapeared and hostapd no longer serves internet to wirelessly connected devices

I have a laptop running hostapd, phpd, and mysql. This laptop uses an Ethernet connection to connect to the internet and acts as a wireless access point for my workplace's wifi devices. After ...
1 vote
0 answers
172 views

XCP Project Kronos syslog error: "irq ... : nobody cared" on Dom0 host

One of our production clusters driven by XCP suddenly went uresponsive. After restart and some investigation we found such logs in dom0 machine syslog: Oct 26 20:32:03 hetzner-2-mrx kernel: [1797931....
1 vote
2 answers
465 views

routing eth0:1 directly to kvm VM

Ive got a Dedicated Server with 2 Public IP Adresses and would like to route all eth0:1 traffic to a KVM Guest via iproute2 or even iptables. Outgoing Traffic should also be routed to eth0:1 - eth0 ...
2 votes
2 answers
6k views

Ubuntu Server forgets how to connect using ethernet

I have encountered a series of errors after my Ubuntu server was restarted. It seems to have forgotten how to connect to my router as it cannot ping local or other IPs. When I start it up it says ...
3 votes
3 answers
3k views

Bridge ppp0 and eth0

I have seen many posts explaining bridging eth and wlan interfaces. I would like to know if it is possible to bridge ppp0 interface (a USB modem) and eth0. I have a working internet connection through ...
0 votes
2 answers
4k views

Configuring Static IPs on CentOS 6.2

I am a complete Linux newbie, but we have quite a few spare Dedicated Machines available right now, so I decided to setup CentOS 6.2 on one of them and start getting more familiar with it. Obviously ...
1 vote
2 answers
921 views

Two network adapters with the same ip

I have two network adapters that use the same ip range, but are different networks. I tried this but it didn't work: iptables -t nat -A OUTPUT -p all -d 1.2.3.0/8 -j DNAT --to-destination 192.168.0....
1 vote
0 answers
524 views

Linux: single NIC is named eth0/eth1 due to udev and MAC-based rules. Kinda weird

I have a motherboard with onboard NIC (single Ethernet NIC in the computer); also USB port is constantly occupied with Wifi dongle. in my /etc/udev/rules.d/70-persistent-net.rules, found this: # PCI ...
0 votes
2 answers
2k views

Check by program if eth link is up or down on linux o.s. ...and kernel 2.4

I need to check the change in the status of eth connection ( link up and link down ) by program ( using c or perl ). Now I using the keepalive way, but i sometime loose the notification. Inside the ...
2 votes
1 answer
7k views

eth0:0 is configured but not listed in ifconfig output

I have the following problem: My server was given two IPs from [b]different[/b] subnets. Now I am trying to configure the system to work properly. I have created [root@server ~]# cat /etc/sysconfig/...
5 votes
2 answers
13k views

Bridging Network Devices with Multiple IPs

I have a small server with a single NIC that I am trying to get a bridge functioning on so that I can run KVM. On this NIC I have a couple IPs statically assigned to it: eth0 = 192.168.1.1 eth0:1 = ...