similar to: Strange network failure on C6

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

given machine with C6 x86_64 (seen on C 6.6 but also before and probably still present on C6.7) only 1 interface, there is dhcp on this network (for kickstarting) but the machines have static ip's, and NO networkmanager installed contents of resolv.conf search some.domain.here nameserver x.x.x.x #dns1 nameserver y.y.y.y #dns2 change resolv.conf to: search some.newdomain.here nameserver

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

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

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

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

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

Hi all, I have a CentOS 5.4 server-only installation, i.e. no X installed, and for some odd reason /etc/resolve.conf gets overwritten by NetworkManager on a constant basis. I haven't been able to track down how often, but I think it's on the hour, or something. This is the conents of the file right now: # Generated by NetworkManager # No nameservers found; try putting DNS servers into

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

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

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

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

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,

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

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.

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,

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.

I'm having some issues with Internet access from CentOS7 server which is installed in Vmware Workstation 10.0.3 build-1895310 in Windows 7 x64. At this point I can't get if the error is on CentOS configuration or it's another problem so I leave here what I did in order to get Internet working on that VM. 1) */etc/resolv.conf* # Generated by NetworkManager nameserver 8.8.8.8 nameserver

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

> 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