similar to: host OS can't access internet but guest OS with bridge can

Hi, I am trying to fix a problem I have for about a week now. The environment is: --several independent servers with Centos5.4 on the latest patchlevel (example will be server2) All of them are working properly. --a machine with Xen installed to host some virtual machines (xenserver1) --domu servers on xenserver1 (crmserver1, winserver1) The whole network is connected with a Lancom router to a

I just did a fresh install of centos 5.0 from cd, followed by yum update which installed 399 packages. No failures or errors that I can see. I have three nics in the box, but am only setting up one at the moment. The box can ping others in my network, but if I try ssh, telnet, ftp, etc I get this: [root at cm network-scripts]# ftp watchdog ftp: connect: No route to host ftp> [root at cm

I''m running Xen and created a virtual os called Domain-1. So now I have two systems, Domain-0(dom0) and Domain-1(dom1), both running fedora 8. I only have 1 ethernet device eth0. However, for some reason, my internet doesn''t work in Domain-1. My output for route -n on Domain-0 is: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref

Hi, I'm using CentOS release 5.6 (Final) and Xen 3.1. I'm writing to ask how to configure port forwarding. With virt-manager 0.6.1 I added the machines, but there I don't see an option for port forwarding. I would like to reach the VM on a specific port of the host machine. Once the machinces are running, I can configure iptables so that the port forwarding works, but after

I have a CentOS 6.4 VM that is getting its DHCP information from dnsmasq (a libvirt instance). However, it is not applying the routing information. Attached is a tcpdump of the dhcpc output. You'll see: Default-Gateway Option 3, length 4: 192.168.122.1 However, when I run 'route -n', I get: # route -n Kernel IP routing table Destination Gateway Genmask

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 hi all, i have several flac files which have their comment tag filled up with... comments, as well as the other tags filled in with relevant information. and then i have some similar flac files, resulting from some audio processing on the original flac files, in a subdirectory, S, for example. i am using metaflac 1.2.1-1.2 on ubuntu 9.04 and i am

I would have to see a file sample to debug it. --- On Wed, 12/30/09, scar <scar at drigon.com> wrote: ... > and thus none of the tags are transferred.? i put an equals sign into > the comment and then metaflac doesn't complain anymore.? however, on the > files that it did not complain about there was no equals sign in the > comments.? so i am confused as to what is the real

Has anyone ran into this issue before? 2 physical nics: eth0 hooked up to 10.175.8.0/21 eth1 hooked up to 10.150.8.0/24 Ifconfig -a looks like this: [root@mgixen1 ~]# ifconfig -a eth0 Link encap:Ethernet HWaddr 00:19:B9:F2:1B:C3 inet addr:10.175.8.158 Bcast:10.175.15.255 Mask:255.255.248.0 inet6 addr: fe80::219:b9ff:fef2:1bc3/64 Scope:Link UP

Hi all, I wonder if someone can help me with this: The setup is as follows: 192.168.1.254 - wireless ADSL modem, with DHCP pool on 192.168.100 - 192.168.200 192.168.1.250 - Linux firewall RED interface 192.168.2.250 - Linux firewall GREEN interface. There are some normal LAN clients behind the Linux firewall's GREEN interface, which can all access each other's shared services and also

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 i am envisioning a scenario that a fellow sysadmin is employing using xen, where the host is configured with LVM. basically, one volume group spans the physical disk. then, various logical volumes are created for the host and (Linux) guest OSes. this makes it easy to resize logical volumes should it be needed. is a setup like this possible with

Hello, On Ubuntu 9.04 (libvirt 0.6.1-0ubuntu5.1) I have 2 different network files: root at sauron:~# ls -l `locate default.xml` lrwxrwxrwx 1 root root 14 2010-02-13 12:34 /etc/libvirt/qemu/networks/autostart/default.xml -> ../default.xml -rw-r--r-- 1 root root 373 2010-03-01 00:02 /etc/libvirt/qemu/networks/default.xml -rw------- 1 root root 319 2010-03-01 00:04

On 12/16/2013 04:47 AM, Gao feng wrote: > On 12/14/2013 10:51 AM, scar wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA256 >> >> Gao feng @ 12/12/2013 10:18 PM: >>> I saw there are two bridge br0 and virbr0 in your host. which >>> bridge the libvirt uses? what's result of #virsh net-list ? >> well i don't quite understand bridges

HI again, This is the solution to my problem, hope it helps someone in the future. First of all, thanks to Ramachandran Radhakrishnan for helping me with this. The problem was my NIC: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) What happens, is that the NIC''s driver sets the HWADRRESS = FE:FF:FF:FF:FF:FF, and that''s the same

$ dovecot -n # 1.1.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.28-11-server x86_64 Ubuntu 9.04 protocols: imap imaps managesieve I need to make an IMAP (actually imaps) server available over the Internet. Unfortunately, VPN is not available (not all clients support VPN), so I will have to expose the imaps port to the Internet. My question is: how reliable is Dovecot in such a setup? I am not

Hi there, I've installed a new KVM-Server. The routing in all instances are only working after "arp -s ip_of_router mac_of_router" Server: CentOS7, KVM Clients: CentOS6 and Fedora 21 What going wrong? [root at bgstkvmlr01 ~]# ifconfig bond0: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST> mtu 1500 inet6 fe80::3ed9:2bff:fe0b:c706 prefixlen 64 scopeid

Hi, I''m trying to install xen with this configuration: dom0 -> Centos 5.3 dom1 -> Fedora 10 dom2 -> Fedora 10 Centos kernel = (2.6.18-128.1.10.el5.centos.plusxen) XEN Version = 3.0.3 I''m having some problems trying to install xen on my mychine, but i''ve been able to solve all of them but one: i can''t reach my gateway from

I have two Linux (RH v9) routers connected to the Internet (separate DSL connections), each with two EtherNet cards. Router #1 has static IP address "a.a.a.1" for the internal LAN, and static IP address "x.x.x.x" for the Internet connection; here''s what the "route command shows: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref

I have 2 machines running centos. each machine has 2 network cards. Box 1: eth1: T1 connection 74.X.X.X eth0: office connection 192.X.X.X Box 2: eth1: Cable modem 24.X.X.X eth0: office connection 192.X.X.X How do I issue a route command on each box so it will use eth0 as the shortest route between the two boxes??? Thanks, Jerry -------------------- On Box1 the route is: [root at mndemo ~]#

Hello everybody. I could not find an answer to my problem in the archive. (But that may just be me :-) ) I have a problem with proxy arp and connection from loc (localnet) and from the firewall. Works fine from internet to dmz / proxy arp and vise versa. I have a feeling the solution is simple, but I''m no guru in Linux routing etc. The problem seems to be the routing setup. loc -

I try to setup networking with a fresh CENTOS4.4 installation. Upto now I have 20 installations, most of them FC3/FC4 and RHEL3. I noticed that the default gateway is not setup properly when using Centos. [root at raaf ~]# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.101.0 * 255.255.255.0 U 0 0