I want to add more than one Virtual IP to my CentOS machine. I was able to add one ver easily by creating a file ifcfg-eth0:1 and editing the IPADDR field. But I cannot create more by creating a ifcfg:eth0:2, for example.
View 3 RepliesI have installed CentOS on a VMwareWorktation and that CentOS, i also install VMware Server (suscess) and setup a guest OS that, but i start this Guest OS, an error show "You may not power virtual machine in virtual machine"...
View 3 Replies View RelatedI have Linux server with VMware Server 1.0.8. When I creating a virtual machine, I can not "send" a PING to the virtual machine. In the virtual machine, I have installed CentOS 5.3 (32bit). In the virtual machine I have defined the addresses IP. So, whey I can't "sent" a ping to the virtual machie? I have to set something on the Linux server?
View 3 Replies View RelatedWhich virtual machine in Red Hat now pushing (championing)? And is it supported on CentOS yet? Does it support multiple cores in the guest and does it take advantage of hardware visualization?
View 4 Replies View RelatedWhere can i download an image file of centos for running it in wmware ?
View 4 Replies View Relatedwe are going to implement a virtual environment and I would like to install freenx on a virtual machine.
View 2 Replies View RelatedI am newbie to centos. I am trying to install virtual server in my machine. I have installed the Xen virtual machine monitor which comes with CentOS through add/remove software. Here is the problem, I am unable to open connection with Xen hypervisor. Here is the error i am facing:
Unable to open a connection to the Xen hypervisor/daemon. code...
I installed the Centos 5.5 with XEN and put 03 virtual machines (Centos 5.5 too). I did this correctly, but I have a problem. In the virtual machine, I need update the kernel. I used "yum update kernel" and this is downloaded correctly and the menu.lst file is updated too, but the kernel not ran. I ran "grub-install /dev/sda" or "grub-install /dev/xvda" and received a error return. I read the device.map file and i ran "grub-install /dev/sde" and received a error return too.
The errors:
[root@vm01 ~]# grub-install /dev/sda
/dev/sda: Not found or not a block device.
[root@vm01 ~]# grub-install /dev/sde
/dev/sda1 does not have any corresponding BIOS drive.
[root@vm01 ~]# grub-install /dev/xvda
/dev/xvda: Not found or not a block device.
I had set up 4 virtual machines on centos 5.5 system where I directed the image locations to an external storage. I have lost the image files in the storage, but I have the image files that were copied from the virtual machine image location. I want to put up the same system on the same computer by copying these backup images. However, when I copy the image file to the same exact location and start the corresponding virtual machine I get "no bootable disk" error. When I increase the size of the image using "qemu-img" commands, I can get rid of this error, but get "error reading disk" error. Is there a way to overcome these problems, or is it not possible to restore a virtual machine by copying the machine image file under ..../xen/images?
View 1 Replies View RelatedI need start a virtual machine (Virtual Box) when when my server centos is turned on or start.
View 6 Replies View RelatedI am encountering some problems regarding CentOS 5 and I am going to kindly ask your help in debugging further what is happening. I will give as much information as possible about the setup. Here we go. We use on one server of our servers, GOautodial, an inbound/outbound call center application, that it's installed on a CentOS 5.5 (Final).
# cat /etc/*release*
cat: /etc/lsb-release.d: Is a directory
CentOS release 5.5 (Final)
GoAutoDial CE 2.0
# uname -a
Linux xxxxx.com 2.6.18-194.8.1.el5.goPAE #1 SMP Fri Jul 30 05:30:57 EDT 2010 i686 i686 i386 GNU/Linux
Running Fedora 10, I installed CentOS 5 in Virtualbox, but I can't ping the Virtual Machine...
From within CentOS, I can ping my laptop [known as the host?] but from the laptop I can't ping the CentOS Virtual Machine. I tried turning off the firewall on both too... CentOS was able to access the internet through my laptop right away without any configurations too.
Unless someone has an idea to resolve the above, I am also wondering about something else VirtualBox-related:
To see if it was possible to get around the above issue, I was going to install another CentOS virtual machine to see if I can get them to communicate both ways [if at all], but to do so, I think I have to install CentOS AGAIN on another allocated amount of hard disk space. This will take some time, so I was wondering if anyone knew if it was possible to just create a quick duplicate of the previous installation, if you wanted 2 different virtual installations of the same OS.
I'm running CentOS 5.5 x64 and have just installed VMWare Server 1. I am able to create a new Virtual Machine, but when I go to power on the VM in order to install the OS (windows server 2003), either the host crashes/reboots (with "Run in Debugging Mode" turned on) or the VM simply does not start (with that Debugging box unchecked) and in the log there is an error along the lines of VMware Server unrecoverable error (vmx)
View 1 Replies View RelatedI'm trying to set up a virtual machine environment in Centos5.5. My hardware fully supports virtualization, and I'm running qemu as the hypervisor with Virtual Machine Manager as the GUI to manage and create VMs. Host hardware is a Dell PowerEdge T710, with a quad core Xenon processor and four 1TB disks in a raid 6 array.
Within the Virtual Machine Manager when trying to create a new VM, there is the option to not "allocate entire virtual disk now". What format is created when you "allocate entire virtual disk now" and when you don't?
I want to create a qcow2 image format, but it doesn't look like it is supported. Does anybody know how to create a VM with a qcow2 image format?
When you create a blank disk with "qemu-img create -f qcow2 disk.qcow2 3700G", it indeed does create a qcow2 image. However, Virtual Machine Manager is unable to read these images, claiming that it is 15 megs or so in size (which is what it actually occupies in host disk space until you try and put a VM into it).
I have CentOS 5.5 and try to create KVM virtual machine with CentOS 5.5 as a guest. But when I exec command:
virt-install --connect qemu:///system --name test --ram 1024 --file=/var/lib/libvirt/images/test.img --file-size=10 --vnc --cdrom=/var/lib/libvirt/images/CentOS-5.5-x86_64-bin-DVD-1of2.iso --vncport=10000 --accelerate --os-type=linux --nonsparse --livecd --hvm
I have two machines, one has XP service pack2, second one has CentOS 5.3 (Linux), they are connected through crossover cable. I have configured everything fine but don't know why till now can't ping!
A. Windows machine settings as follows:
IP Address: 192.168.1.3
Subnet Mask: 255.255.255.0
Default Gatway: 192.168.1.1
+ Firewall is turned OFF.
B. For Linux machine, I will list everything stored in network files, logged as [root@localhost ~]# :
1. /etc/sysconfig/network:
ifconfig eth0 192.168.1.4 netmask 255.255.255.0 up
route add -net 192.168.1.0 netmask 255.255.255.0 eth0
route add default gw 192.168.1.1 eth0
NETWORKING = yes
NETWORKING_IPV6=no
HOSTNAME=localhost.localdomain
2. /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
IPADDR="192.168.1.4"
NETMASK="255.255.255.0"
ONBOOT="yes"
BOOTPROTO="yes"
3. /etc/resolv.conf
nameserver 192.168.1.4
search locadomain
4. I restarted network service using this command:
/etc/init.d/network start
everything is fine. When checking using ifconfig command. I get the following:
eth0 Link encap: Ethernet HWaddr 00:08:0D:EE:19:66
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr:........
[code]....
I mean I assigned the IP: 192.168.1.4 to Linux machine (Eth0). I did everything above and can't ping till now, when pinging from windows or Linux I get a message "destination host unreachable" restarted Linux many times but same result. NETWORK CABLE is working fine I tested it.
I have a few mail servers, a mail log server and a web server running on Centos 5. Now I have a task: to avoid accidental crashes on the production servers while installing updates, my boss asked me to do clones (these clones will all be VMware virtual machines) of the servers (EXCLUDING the actual e-mails and log contents) and then to run those clones on VMWare Server. This way, first I will install and test updates on the clones and - if they will be running without crashes - I will apply the updates on the real production servers themselves.
I have already installed VMWare Server 2.0 I have a few questions: How do I build the virtual machines to exclude the actual mail files and mail logs? Can I use VMware Converter for this purpose, or do I have to use another program? How do I actually do this cloning? Is there a tutorial on how to do this?
Why i cant install a new virtual machine from dvd/cd only via network install and which install media url i must paste in the option to install debian or Suse or redhat.
View 3 Replies View RelatedI have one static IP, how can i turn it into multiple IPs so i can run multiple games on one machine.
View 2 Replies View RelatedI've installed CentOS 5.3 on a machine, and I need a Samba version 3.2 or higher. Since 3.4 is out, I thought I'd grab that. But, "yum list|grep samba" gives me only version 3.0.33. Is there a package of Samba I can grab that will upgrade the 3.0 installation so that I don't have two laying around? If not and I need to compile from source, do you have any suggestions for what arguments I should give configure? I'm not used to Linux coming from the BSD world
View 1 Replies View RelatedI have a webserver with 3 virtual interfaces named eth0:1 eth0:3 and eth0:3. Until yesterday all the virtual ip's worked but eth0:1 decided that it just won't work anymore since yesterday. The configs are:
eth0
Code:
DEVICE=eth0
USERCTL=no
ONBOOT=yes
BOOTPROTO=none
BROADCAST=xx.xxx.26.190
NETWORK=xx.xxx.26.160
NETMASK=255.255.255.224
IPADDR=xx.xxx.26.174
GATEWAY=xx.xxx.26.161
eth0:1
Code:
MTU=""
NETMASK=255.255.255.224
ONPARENT=yes
BROADCAST=xx.xxx.26.191
BOOTPROTO=none
NAME=""
IPADDR=xx.xxx.26.175
NETWORK=xx.xxx.26.160
ONBOOT=yes
DEVICE=eth0:1
eth0:3
Code:
MTU=""
NETMASK=255.255.255.224
ONPARENT=yes
BROADCAST=xx.xxx.26.191
BOOTPROTO=none
NAME=""
IPADDR=xx.xxx.26.182
NETWORK=xx.xxx.26.160
ONBOOT=yes
DEVICE=eth0:3
eth0:4
Code:
MTU=""
NETMASK=255.255.255.224
ONPARENT=yes
BROADCAST=xx.xxx.26.191
BOOTPROTO=none
NAME=""
IPADDR=xx.xxx.26.187
NETWORK=xx.xxx.26.160
ONBOOT=yes
DEVICE=eth0:4
route-eth0
Code:
ADDRESS0=0.0.0.0
NETMASK0=0.0.0.0
GATEWAY0=xx.xxx.26.161
eth0:3 and eth0:4 still work, but 2 doesn't
I can access my Win 7 machine from my CentOS machine, but not the other way around.
View 13 Replies View RelatedI have ubuntu-8.04.1-server installed on virtual machine. It works perfect. Now, I made copy of this virtual machine. I started that copied machine and it works fine, except one thing: network does not work!
I have several others VMs with freeBSD, openBSD or Windows on it, but only ubuntu machine hes network problem after coping. I tried some other VM with ubuntu on it - same problem! I downloaded VM with ubuntu - same problem.I take a look into /etc/network/interfaces file and it looks just as it should (same as before coping) but ifconfig command returns parameters for lo only (before coping there was eth0 and lo).
I've run into a problem gathering usage for my xen virtual systems. With my old model I used to gather all network usage via my cisco devices using the the counters for each port. Each system had it's own port on the switch, and I tracked network usage accordingly. Now that I'm using xen for virtual systems, and multiple vm's share the same switch port, i'm not exactly sure what my best option is for tracking usage.
I thought I may be able to setup vlans on the switch, and bind each vm to a different vlan using vconfig... but it seems like there has to be a better solution than that.
I need to set a NAC (PacketFence) system (CentOS 5.5), i would like to set in my case eth0 to work with several different VLAN'S i created ifcfg-eth0.2 copied from orginal ifcfg-eth0 and changed the ip and append VLAN=yes but when i am triyng to load ifcfg-eth0.2 i get error
my ifcfg-eth0 goes as follow
# Intel Corporation 82578DM Gigabit Network Connection
# Normal VLAN Lan adapter (Managment)(On-boad 1st NIC)
DEVICE=eth0
[code]....
I have a running PDC with Samba and LDAP. But when I want to join the Domain with an XP Pro Client I just get following error message.
"A Device connected to the System is not working".
i have sun Virtual box installed on my centos as my host os and centos as guest os.The ip on Sun virtual box virtual interface is10.0.2.15 and the ip on the physical machine is 192.168.1.11.when i try to ping the ip from my vps on centos to my physical machine it pings but it does't work when i try to ping my vps ip from my physical machine.Please recommend the route enteries i need to do in physical machine
View 3 Replies View RelatedI just getting back to working with linux. I'm having a problem with what seems to be an iptables thing or something easier than that, Enough here is the question I can get apache to run on the local machine by either going to http://localhost or by the ipaddress on the CentOS machine. But for some reason when I try to take a look on my laptop (on the same network) and try to go to it using the IP address is doesn't go. I can ssh from my laptops but it will not open the apache startup page.
View 1 Replies View RelatedI just installed Centos 5.4 on the 2nd partion of my hard drive. I have an ethernet card in my machine (a 3Com Corporation 3c905 100BaseTX [Boomerang] card), but I need to be able to use my wireless USB device I bought from my local phone company (Qwest)...because I will not always have the luxury of plugging in to a hard-wired connection. The USB wireless device works fine in Windows, but I need to be able to use it on my newly installed Centos 5.4 partition.
Here's some info:
[Code]...
I had made following entries in my httpd.conf file at centos5.5.
###########################
Listen 80
Listen 8080
Listen 8085[code]....
When i am trying to access the any directory other on port *80, its not being accessible from the static ip which is routed through a DMZ server. http://122.165.35.9:8085 something like this returns the error "could not connect to web browser"