Displaying 20 results from an estimated 2000 matches similar to: "CentOS 6: ethernet "ifconfig up" failure"
2020 Sep 22
2
nmcli: unwanted secondary ip-address
Dear Simon,
> And can you diff the config of eno1 and eno4.
# pwd
/etc/sysconfig/network-scripts
# diff -u ifcfg-eno1 ifcfg-eno4
--- ifcfg-eno1??? 2020-09-21 17:23:25.576672703 +0200
+++ ifcfg-eno4??? 2020-09-22 07:18:43.160532532 +0200
@@ -3,15 +3,20 @@
?BROWSER_ONLY=no
?BOOTPROTO=none
?DEFROUTE=no
-IPV4_FAILURE_FATAL=yes
-IPV6INIT=no
-IPV6_AUTOCONF=no
+IPV4_FAILURE_FATAL=no
2020 Sep 22
2
nmcli: unwanted secondary ip-address
Dear Simon,
every second IP-address is unwanted. We restarted? eno4:
nmcli con down eno4; nmcli con up eno4
and the second address vanishes. Then after a few ours, the second ip
address reappears.
This is the config-file of eno2:
# cat ifcfg-eno2
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
2014 Jan 15
4
default gw route has gone?
Weird behaviour.
A couple of days ago I installed another DSL router.
During the process I have somehow caused the default gw route to
disappear - on system start up the interface comes up fine, I can see
and connect to the local subnet but not to the internet.
[rkampen at timsws network-scripts]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
2018 Jun 21
2
NetworkManager updating resolv.cfg
Hi,
I am facing issue stoping NetworkManager to update resolv.cfg, I am using below configuration for eth0 interface:
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=eth0
UUID=93b90a46-dab5-4a67-8fd0-fefe8874a8b9
DEVICE=eth0
ONBOOT=no
PEERDNS=no
PEERROUTES=yes
2013 Sep 23
4
Upgrade of CentOS and libvirt: need help on configuring network
I upgraded from CentOS 5.9 to CentOS 6.4.
I try to reuse my virtual machines and am only partially successful: I can run them, I just cannot get the network OK and need some help with that.
What I had in the past was pretty simple: both the host and the VM's used eth0 and each had an IP in the same subnet and could communicate freely. With the new install it seems somewhat more complex and I
2019 Sep 20
2
7.7.1908, interface bonding, and default route
Hi!
I just upgraded a machine to 7.7.1908 and the default route is not being
set on boot. This particular server has a bonded interface, and the
corresponding configuration for the master is (
/etc/sysconfig/network-scripts/ifcfg-bond0):
TYPE=Bond
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
NAME=bond0
DEVICE=bond0
ONBOOT=yes
IPADDR=10.3.20.131
PREFIX=24
2017 Feb 13
2
CentOS 7, systemd, NetworkMangler, oh, my
Gordon Messmer wrote:
> On 02/13/2017 07:35 AM, m.roth at 5-cent.us wrote:
>> Finally, I do an ifdown, followed by an ifup, and everything's
>> wonderful.
>
> What's in /etc/sysconfig/network-scripts/ifcfg-<interface>? Does it say
> NM_CONTROLLED=no?
>
Good catch. No, it doesn't say no... because the line was commented out.
I've just uncommented it,
2018 Aug 24
1
Mail has quit working
On Thu, 23 Aug 2018 at 19:11, TE Dukes <tdukes at palmettoshopper.com> wrote:
>
>
> Whoooosh, senior moment!!
>
> Here's the link:
> https://paste.fedoraproject.org/paste/MMNEJmqIrEzK-A4N3MR0ZA
>
> I just recently disabled IPV6 due to errors resolving I saw in the logs.
> This was AFTER mail quit working the second time. It did not correct the
> problem.
2013 Apr 16
4
2nd NIC troubles
Hi All,
I have 2 NICS in this system. CentOS 6.4
eth0 is the virtual IP from PFSense mapping connected to the router, works
fine.
eth1 is a second NIC that I have assigned a private IP to and connected it
to a switch on the private network. I have many other private devices, so I
know this setup works.
When I connect the cable to the switch and bring up eth1 the system
basically stops taking
2015 Dec 11
2
CentOS 7 Lost NIC
Hello,
I have a big problem with my servers.
I have 4 NIC on all my KVM Servers but the most time on a start (restart) I
lost one NIC? It is not always the same, but this two are virtio NICs.
with ifup eth0(1) the system say,I have no configured eth0 or eth1 file ?
Can any tell me what I can do?
thank's for a answer
NetworkManager is disabled.
--
mit freundlichen Gr??en / best regards,
2016 Mar 29
2
Network bond - one port goes down from time to time
Am 28.03.16 um 12:12 schrieb Leon Fauster:
> Am 28.03.2016 um 11:27 schrieb G?tz Reinicke <goetz.reinicke at filmakademie.de>:
>> We have three supermicron servers with two 10Gb Ports each, connected to a cisco switch stack 1Gb ports. All are on auto speed.
>>
>> I configured a LACP bond on both sides on all servers, first with citrix xen server.
>>
>> On
2013 Jun 04
3
Centos6.4 routing problem
dear All,
I'm facing this routing problem, the setup is actualy part of ltsp, but
I think this problem is Centos-specific.
The server is a Dell Poweredge R210. The install is standard 6.4, updated.
I have one nic facing the public internet:
vi /etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
BOOTPROTO=none
HWADDR=d4:ae:52:c1:28:2b
NM_CONTROLLED=no
ONBOOT=yes
TYPE=Ethernet
2012 Jan 14
3
Centos 6.2 / KVM troubles with network
Hi,
I have installed CentOS 6.2 x86_64 and KVM/Qemu and I have some troubles
with network.
The first case:
-----------------
The configuration is:
- CentOS 6.2 (hardware machine) has one Ethernet interface with static
IP address (eth0).
- Virtual machine has bridge network interface with eth0 interface on
CentOS 6.2. This bridge is created using wizard integrated with
virt-manager.
- Bridge
2014 Oct 15
2
IP aliasing on CentOS 7
Hello all,
is there a good wirte-up on how edit script files in
the /etc/sysconfig/network-scripts directory on Centos & to assign multiple
IP addresses to the same NIC on boot?
Thanks for any and all help.
Cheers,
Boris.
2013 Jun 06
1
Fwd: WpaSupplicant how to
Hi,
I was recently going through the how to located here:
http://wiki.centos.org/HowTos/Laptops/WpaSupplicant
This how-to shows the steps to follow to get a wifi interface working
without using NetworkManager and subsequently how to have wireless working
withouth having a user login.
Anyways, when going through this I was having issues because everything
seemed to work but I was never
2018 Oct 04
3
Need help with Linux networking interfaces and NIC bonding
Hello everyone
I am running into some strange issues when configuring networking
interfaces on my physical server running Centos 7.5. Let me give you an
overview of what's going on:
We have a physical server, running CentOS 7.5. This server has one 4 port
NIC and one 2 port NIC and a Dell IDRAC port. The first port of the 4 port
NIC, em1, is used for Management traffic. The first port of
2020 Sep 22
4
nmcli: unwanted secondary ip-address
Dear CentOS-Community,
we are facing the following issue:
A secondary ip address seems to be automatically added to a nic which
causes several issues in our setup.
This server is equipped with four nics which are currently in use:
# nmcli con show
NAME????? UUID????????????????????????????????? TYPE????? DEVICE
eno2????? cb6fcb54-be52-4ab6-8324-88091a0ea1a0? ethernet? eno2
eno4?????
2015 Aug 31
4
Libvirt resume guest startup issues centos 7
Here is the relevant log snippet:
journal: libvirt version: 1.2.8, package: 16.el7_1.3 (CentOS BuildSystem
<http://bugs.centos.org>, 2015-05-12-20:12:58, worker1.bsys.centos.org)
journal: failed to connect to monitor socket: No such process
journal: internal error: process exited while connecting to monitor:
((null):1937): Spice-Warning **: reds.c:3036:reds_init_socket:
2018 Aug 23
3
Mail has quit working
On Thu, 23 Aug 2018 at 18:52, TE Dukes <tdukes at palmettoshopper.com> wrote:
>
>
>
> > -----Original Message-----
> > From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Stephen
> > John Smoogen
> > Sent: Thursday, August 23, 2018 6:24 PM
> > To: CentOS mailing list
> > Subject: Re: [CentOS] Mail has quit working
> >
> >
2012 Sep 04
6
Simple routing question
We use a dual homed CentOS-6.3 host for our Internet gateway router.
Its internal nic (eth1) is configured such that the address
192.168.0.1 is one of its aliases.
# cat /etc/sysconfig/network-scripts/ifcfg-eth1:192BOOTPROTO=none
BROADCAST=192.168.255.255
DEVICE=eth1:192
IPADDR=192.168.0.1
IPV6INIT=no
MTU=""
NAME="LAN - Non-routable"
NETMASK=255.255.0.0
NETWORK=192.168.0.0