Displaying 20 results from an estimated 1000 matches similar to: "Weird behaviour of ifcfg scripts"
2011 Nov 13
3
binding additional IP addresses to centos6 on one interface
I know this was discussed before, and I have seen a million ways of
doing this via online docs. I have a quick question that hopefully the
community can help me out with
I am trying to add a block of 10 IP addresses. Rather then create 10
different alias files, I want to use the RANGE file.
Docs say to use the following format:
IPADDR_START=x.x.x.x
IPADDR_END=x.x.x.x
CLONENUM_START=0
If the
2015 Feb 18
3
Help with routing question.
CentOS-6.6
We have a host that has multiple IPv4 addresses aliased to eth0. The
primary address is 216.185.71.x and the alias is 192.168.6.x.
This host connects to devices on both netblocks without problems.
Only default routing is used and it looks like this:
#ip route
192.168.6.0/24 dev eth0 proto kernel scope link src 192.168.6.x
216.185.71.0/24 dev eth0 proto kernel scope link src
2011 Jan 13
5
ifcfg-rh: error: Unknown connection type 'Bridge'
CentOS-5.5
# uname -a
Linux inet05.hamilton.harte-lyne.ca 2.6.18-194.32.1.el5 #1 SMP Wed
Jan 5 17:52:25 EST 2011 x86_64 x86_64 x86_64 GNU/Linux
Can anyone tell me why I am seeing these error message?
Specifically, why is TYPE=Bridge giving Unknown connection type
'Bridge'?
Jan 13 08:25:31 inet05 nm-system-settings: Loaded plugin ifcfg-rh:
(c) 2007 - 2008 Red Hat, Inc. To report bugs
2017 Jul 06
3
Virtual IP
H? all;
i need your helps on setting the virtual ip. I am trying to setup static
virtual ip on CenOS7. but I want my VIP to should not open when rebooting.
My interface settings like this:
*for ens33 NIC -> ifcfg-ens33*
DEVICE=ens33
BOOTPROTO=none
ONBOOT=yes
PREFIX=24
IPADDR=192.168.2.151
*and for VIP NIC ens33:2* * -> ifcfg-ens33:2*
DEVICE=ens33:2
ONBOOT=no
ONPARENT=no
2008 Nov 13
3
Virtual NICs (aliases like eth0:1) won't come up after reboot
With one problem down I still have another remaining. Since the
installation of our primairy webserver we have had a problem with the
network aliasses.
Our server has 8 IP adresses so we used the tool provided in the GUI to
specify (and name - for our own convinience) eth0 aliasses with the
other 7 adresses. After setting them up, applying them, activating them
and restarting
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
2009 Nov 24
7
CERN using RHEL/CentOS?
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi list,
I just did my daily news scan and saw some screenshots that illustrate
the press release [0] announcing the first collisions at the LHC. Those
screenshots show windows and buttons that exactly match my CentOS GNOME
Desktop [1]. AFAIK, SuSE/Novell has different skins, as has
(Open)Solaris and AIX, for instance.
So, has there anybody more
2012 Jun 18
1
Cannot set alias IP address
Hi,
I have an eth0 interface (it's a CentOS 6 guest VM on a KVM host) which
is configured as follows (see below) with a primary public IP address of
xxx.xxx.xxx.130 (which works fine). I cannot set an alias IP address. I
want eth0 to also use another IP address (xxx.xxx.xxx.131, so I create
/etc/sysconfig/network-scripts/ifcfg-eth0:1. Then:
# service network restart
Shutting down
2015 Nov 12
10
Poor perfmance of bridged interfaces
Hi,
I've created a bridge using 2 interfaces and have a lot of messages as
follows:
nov 12 15:30:22 localhost kernel: br0: received packet on enp0s3 with own
address as source address
nov 12 15:30:22 localhost kernel: br0: received packet on enp0s3 with own
address as source address
And the operating systems is extremely slow
Interfaces files :
[root at localhost ~]# cat
2016 Oct 04
1
Virtualization Networking
> Date: Monday, October 03, 2016 22:00:07 -0400
> From: TE Dukes <tdukes at palmettoshopper.com>
>
>> From: Gordon Messmer
>> Sent: Monday, October 3, 2016 4:25 PM
>>
>> On 10/03/2016 04:54 AM, TE Dukes wrote:
>> > I can get the guest to access the internet but have tried every
>> > was possible to be able to access the guest from the LAN
2014 Mar 03
1
IP aliases Centos 6.x
What's the right way to assign an IP alias to an ethernet interface
that you want to bring up and down manually, not on boot?
I tried the old way of making an ifcfg-eth3:0 file and it does work
with the ifup, ifdown commands, but even though I specified onboot=no,
it activated at boot-up.
--
Les Mikesell
lesmikesell at gmail.com
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
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
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,
2011 Sep 11
4
CentOS 6: ethernet "ifconfig up" failure
On my CentOS 6 partition of my laptop:
First note that for this test, NetworkManager is not
running because I did:
chkconfig --del NetworkManager
and then rebooted.
Here is my ifcfg-eth0:
DEVICE="eth0"
NM_CONTROLLED="no"
ONBOOT=no
HWADDR=xx:xx:xx:xx:xx:xx
TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.2.5
PREFIX=24
GATEWAY=192.168.2.1
DNS1=192.168.2.1
DNS2=192.168.2.1
2015 Nov 13
3
Poor perfmance of bridged interfaces
2015-11-12 18:07 GMT-03:00 James A. Peltier <jpeltier at sfu.ca>:
> ----- Original Message -----
> | Hi,
> |
> | I've created a bridge using 2 interfaces and have a lot of messages as
> | follows:
> |
> | nov 12 15:30:22 localhost kernel: br0: received packet on enp0s3 with own
> | address as source address
> | nov 12 15:30:22 localhost kernel: br0: received
2012 Jan 18
2
Connecting ethX devices directly to a KVM/QEMU guest OS (no bridging)
Hello CentOS gurus, and a belated Happy New Year (or an early Happy
Chinese New Year).
I'm in the process of building a CentOS-6 KVM host machine whose only
function will be to run four independent 'm0n0wall' firewall guest
instances. I have a couple of quad-port Intel NICs to provide four
WAN-side and four LAN-side ports, which will not be shared with any
other guests. Remote
2014 May 15
4
Set static IP
Hello,
I want my CentOS 6.5 computer to have a static IP. Currently I get the
IP I want because I have my router assign it on the basis of mac address.
I placed the following file as:
/etc/sysconfig/networking-scripts/eth0
DEVICE="eth0"
BOOTPROTO=static
HWADDR=00:1F:D0:9E:AE:67
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
NETMASK=255.255.255.0
IPADDR=192.168.0.99
2013 Oct 28
1
bridged networking using VLAN : guest with 2 NIC
hello all,
I have been trying to set-up bridged network with VLAN and not able to
succeed as many tutorials address only single NIC.
I am trying to setup 2 guests (backtrack instance) each guest has NIC1 and
NIC2. following is snippet for guest1
I am not able to get 192.168.0.2 address back on guest eth0.
VIRT-MANAGER GUI :
guest1-lan details radio button
left side panel
NIC1
2015 Jul 09
1
Bond & Team: RX dropped packets
Hi all,
we are testing CentOS 7 in order to migrate from Scientific Linux 6 /
CentOS 6 and we are facing an issue with the network. Trying to configure
network with teaming in activebackup mode or also with bonding in mode=1
(active backup as well) we see many RX dropped packets in the bond0
interface (around 10% of the total), 100% RX drops in the backup interface
and 0% in the active interface.