similar to: what is difference between ifconfig and ifup?

Hello all I am setting up a Centos 6 machine with one network card & one onboard network port. Both are recognized & work. Onboard Network port is unused yet, but is required for dedicated access to LTSP LAN, which would allow older PIII machines to boot from this system. I have installed LTSP but again Networking seems to be the problem area, as the clients won't boot from this

I need to apply three resources one immediatelly after another. It''s a ifdown/ifup commands, and command to generate /etc/network/interfaces file. I need to do ifdown, then rebuild interfaces, then ifup. I try to add simple relationship, but in this case some File resources are trying to be applied between ifdown and ifup. So they can''t connect to Puppet master to verify

I have a series of static routes in route-eth0 Recently I had to made changes and could not find an effective way to get the old routes out and the new routes in. ifdown-route seems to apply the content of route-eth0 to take down the routes listed and ifup-route brings up routes based on route- So what ends up is that the old routes never go away, just new routes added. ifdown eth0; ifup

If eth0 holds virtual IP as its secondary IP and I bring down eth0 by command "ifdown eth0", CTDB will automatically pull eth0 up. Sometime it goes wrong. The virtual IP becomes primary IP, and origin primary IP turns into a secondary IP or just missing. If the origin primary IP is missing, I have to run "ifup eth0" though CTDB has pulled eth0 up. CTDB uses “ip link set eth0

I want to change the contents of my /etc/sysconfig/static-routes-ipv6 and NOT restart the network. Is there a way to do this??? I know about ifup and ifdown for interfaces, but what about routing (and IP6 at that).

We add disks to an LSI raid array periodically to increase the amount of available space for business needs. It is understood that this process starts with metal, and has many layers that must each adjust to make use of the additional space. Each of these layers also says that it can do that 'online' without interruption or rebooting. But making it happen is not that easy. When the HW

Dear developers! I''ve found that recent xen releases cannot be simly run on openSUSE! The script /etc/xen/scripts/xen-network-common.sh makes some incorrect assumptions on the SuSE ifup script. Bridged xen networking only works if the script executes this branch: preiftransfer() { true } ifup() { false } ifdown() { false } Otherwise the xen networking scripts fail to put the

> First off, I assume you can ping your link-local address: > > ping6 -I eth1 fe80::a00:27ff:fe03:5b8a > > Second, you never mentioned how eth1 was assigned its IPv6 address. > Given that you've tried to embed an IPv4 address within an IPv6 address > (which is normally done with a 0:0:0:0:0: prefix), I'd guess you did it > manually. If so, with what tools?

Dear Friends I have 2 netcards (eth0 to Internet and eth1 to internal network) in CENTOS 4.2, bit when I boot system the up eth0 and et1i [OK]. When I run ifconfig the eth1 has not IP configure, then I run command ifdown eth1 and ifup eth1, after eth1 is work perfect. Below I show file /etc/sysconfig/network-scripts/ifcfg-eth1 # Please read /usr/share/doc/initscripts-*/sysconfig.txt # for

I recently reconfigured some CentOS 4.3 systems that were using DHCP to use static IP addresses. At the same time, the systems were moved to a new VLAN. Here is the approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have

My manager tells me a system in the datacenter is down. I go down there, and plug in a monitor-on-a-stick and keyboard. It's up, but no network. I try systemctl restart NetworkManager several times, and ip a shows *no* change. Finally, I do an ifdown, followed by an ifup, and everything's wonderful. My manager thinks that the NM daemon thinks everything's fine, and there've been

hi, I seem to have a problem with the Linux xen-network driver leaking skbs. This is probably my own fault, upon resumption after migration I call this: void network_resume(void) { struct net_device* dev = __dev_get_by_name("eth0"); MOD_DEC_USE_COUNT; network_open(dev); } -- which works fine. However, in network_open() the call to NETOP_RESET_RINGS seems to clear all the

Hello, since updating to Centos 7.4 the ifup-post script in /etc/sysconfig/network-scripts does not behave as it did before the update. I use it to configure additional routes via? /sbin/ifup-local with the parameter of the interface being upped, but it seems to pass only 'lo' as interface name. Before it passed correctly 'eth0:0' of the virtual interface. Added a line in

Hi, This is a Centos 5.5 host with one xen guest. About 2 weeks ago, the host randomly lost network connection. By this I mean I could not connect to the services on it, or ping it. Also was the status of the guest. From serial console, I connected to the host, trying to see what happened. No clue (any error messages) in messages or dmesg. ifdown/ifup the interface did not help, either. Only

Hi, This is a Centos 5.5 host with one xen guest. About 2 weeks ago, the host randomly lost network connection. By this I mean I could not connect to the services on it, or ping it. Also was the status of the guest. From serial console, I connected to the host, trying to see what happened. No clue (any error messages) in messages or dmesg. ifdown/ifup the interface did not help, either. Only

Requirement is a very strong word , but you should consider using it and here is a short demo why: - By default, RHEL uses NetworkManager to configure and manage network connections, and the /usr/sbin/ifup and /usr/sbin/ifdown scripts use NetworkManager to process ifcfg files in the /etc/sysconfig/network-scripts/ directory. [root at system ~]# ls -l /usr/sbin/ifup lrwxrwxrwx. 1 root root 22 21

tags 671018 +patch thanks This issue has been fixed upstream for 4.2 by using the same hotplug scripts for tap devices as for vif devices rather than using a special qemu-ifup script. I don't think this is an appropriate thing to backport to 4.1 for wheezy so therefore I think the right fix is as Pierre suggests to set the MAC address in the qemu-ifup script. In terms of a patch to the

Hi Guys, I want to create multiple virtual interfaces on a system running linux 2.6. The main requirment being, to assign unique MAC address fo each of the virtual interfaces. I need to know, if this is possible and will really appriciate if someone can provide me pointer in this direction. Thanks a lot. R. Singh _______________________________________________ LARTC mailing list

Anyone know off the top of their head the "right" way to hard set a link automatically to 100Mbps Full Duplex, etc using the ifup or ifcfg files? Don't see options in the scripts that might cover this, but maybe there's a more elegant way to do it than to do something in rc.local or hack up the ifup files myself... Ray

I need basic PPPoE startup help. adsl-start DID bring up my PPPoE link (ppp0) to my ISP over eth0 via the DSL modem/bridge. My IPv4 CIDR block is routing and Shorewall is doing the firewalling. But shorewall has to be started after ppp0 is up and working. For now this means running shorewall restart (or start?). Shorewall 4.2 will have a way to restart shorewall without recompiling, I