CentOS 5 Networking :: How To Create Virtual IP's
Mar 29, 2011I have one static IP, how can i turn it into multiple IPs so i can run multiple games on one machine.
View 2 RepliesI have one static IP, how can i turn it into multiple IPs so i can run multiple games on one machine.
View 2 RepliesI 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 want to create a virtual host and virtual ip in proftpd linux centos. can anyone please help me on this,I'm new in linux.
View 8 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 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'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 m facing problem in creating virtual network adpater. I want to have multiple mac address for a single NIC.
View 2 Replies View RelatedI need to set a NAC (PacketFence) system , 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
I must missed something
My ifcfg-eth0 goes as follow
Code:
My ifcfg-eth0.2 goes as follow
Code:
I would like to configure and SAN disk. But I do not have a physical SAN disk. Is it possible to create and configure a Virtual SAN disk and work on it with virtual machines?I have around 400GB of space in my Laptop.
View 7 Replies View RelatedThere seems to be a lot written about virtual networking but I am not sure what approach to take in my situation. My local subnet has a public block of 128 addresses. I have a virtual host running on my machine. My machine has a static address and I'd need to assign one to the guest. I have edited the guest's interface file and assigned a public address to it's eth0. However the guest cannot ping out and I can't ping in.
By default the virtual machine manager creates a virtual network (virbr0) and assigned a private address range to it. I have tried to create a new virtual network using a subnet of my public range (/31) but the manager says the range must to a minimum of 16 addresses (/4). It doesn't look possible to achieve my aims using the virtual machine manager.
In the past I have used the procedure laid out here:[URL].. which is to manually create a bridge. I am not sure that is relevant for my 9.10. I think I would have to disable the network manager if I were to do that and I am not sure how to do that.
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 Replies View RelatedHow can i add a PPPOE connection witch connect automatically on system start up in text mode in centos 5.4
View 3 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'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 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"
Is there a way we can create a WAN Balancer on Centos or Fedora?
If yes what are the essentials hardware requirements to achieve the same?
And also let me know if there is any reference URL that I can go through?
I have heard about Untangle as mentioned in the below URL but want to find out if it can be achived on CentOS or fedora.
URL: [url]
is there anyone here knows how to setup Dial up server in CentOS 5.3?
View 3 Replies View RelatedI have just taken on a dedicated server sitting somewhere in Norfolk. I have created a website that uses PHP to connect to another remote server in order to interrogate a MSSQL database. This script, running on Apache, uses a VPN connection to connect to the remote server.To test, I have Apache on my laptop at home and just used Microsoft Network Connection to create the VPN connection.I have now uploaded this site to my new CentOS server and need to create the same VPN connection. I understand this is a command level and have been advised to use OpenVPN which I have successfully installed.My problem is I only have the details remote ip address, username and password. I believe I have to use the 'client.conf' script instead of server.conf.
View 1 Replies View Relatedi am in final semester and almost being stuck to create a streaming server. can any body tell me that how can i create a streaming server on centos 5?
View 2 Replies View RelatedI have a cgi script that tries to get the IP address of a domain. the Domain is defined in Bind, yet it can not resolve it. I put the domain in the host file and it then gives a Error: unable to create socket - Permission denied
I figure I have to do some code changes to the script but here I would like an explaination as to the error I am getting.
When I create virtual ethernet interface and do a ping -I <v_int> <host> the outgoing address is the one of the physical interface and NOT the virtual interface.Is there no chance that trafic will go out with virtual interface address??Incoming trafic is done well i.e. responds to the virtual interface have the virtual address.
My problem is that I have 2 modems and want to check both default gw behind the modems.
If I do a "normal" ping both are reachable over default route even the modem which is not the default route will not work because ping goes over the working modem.So I have 2 routing tables and want to route the virtual interface to one modem the other to the other modem
I have a CentOS 5.5 server running currently with a Netgear gigabit ethernet card and for wifi I have a wi-fi card with the chipset: RT2860.Now I have gotten the ethernet card and wi-fi card working but my main question is: How do you bridge the connection between the ethernet card and the wi-fi card to create a wireless network with a hidden ESSID if possible and WPA encryption? (So the server basically acts as a wireless router as well as doing all the other stuff I need to do on it).
View 2 Replies View RelatedI have been unable to create any type of Windows VM in Xen. Every time it tells me that the processor(s) in the machine do not support full virtualization. After some research, I found several articles regarding the vmx setting in /proc/cpuinfo not showing up when the xen kernel is booted versus it showing up in the default kernel. Of course, I am not seeing the vmx extension in /proc/cpuinfo after I boot to the xen kernel. In the other posts where other people are in the same situation, the only resolution is to upgrade to the 2.6.16 xen kernel. I am already past that:
linux-vxke:~ # uname -r
2.6.31.8-0.1-xen
yet I am still unable to create any form of Windows VM. I have even seen that some people are able to create a partially virtualized Windows VM, and they report that the message is only a warning. However, I am unable to get past this message. I am running a Dell Optiplex 760 with an Intel Core 2 Duo E7300, and I have the VT-x setting enabled in the BIOS. Has anyone else seen this situation or have any thoughts on why this is happening?
I'm trying to add another virtual display for X (eg. :1) so I can use VNC on it instead of :0 I have x11vnc installed for that.
View 9 Replies View RelatedI'm trying to setup PPTPd on my dedicated server and the IP ranges i put the in the config have to exist in one of the network interfaces otherwise the connection wont work,I currently only have eth0 with the direct internet IP which i can't use for this purpose,I need a new NIC with a LAN IP for this and I have no clue.
View 1 Replies View RelatedI want to try to create my own virtual device in Linux. Something simple, for example, a /dev/fortune virtual device that returns a line from fortune() each time you read from it.
I am willing to do my own research and study, I just need to know where to start. E.g., what to read or what to google, in order to get me where I want to go the fastest. I have some C/C++ and Ruby background.
I have a server that is on both a standard network and a virtual network, as follows: server1 attached to standard network server1 acting as Dom0 with two linux DomU guests (under Xen) I only have one network card. How do I configure server1 to have a different hostname on the standard network than on the virtual network? Here are the relevant network configuration files for server1:
/etc/sysconfig/network-scripts/ifcfg-eth0:1
DEVICE=eth0:1
BOOTPROTO=none
NETMASK=255.255.255.0
IPADDR=192.168.122.9
[Code]...
I 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 Related