similar to: Weird behaviour of ifcfg scripts

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.