Running a windows 2008 r2 virtual on KVM via this guide. https://wiki.centos.org/HowTos/KVM#head-8424c473b52c407c62d08e8a37406821d05f5862
Using the interface provided by: virt-manager &
With settings:
Windows network adapter info:
First you will need bridge-utils, available from the base repo:
yum install bridge-utils
You'll also need tunctl.
This is now available from the RPMForge repository, so, once the repo is enabled, can easily be installed with
yum install tunctl
You will also want to edit your /etc/udev/rules.d/90-kvm-rules. When you installed the rpm, the created file reads:
KERNEL=="kvm", NAME="%k", GROUP="kvm", MODE="0660"
In theory, adding the line:
KERNEL=="tun", NAME="net/%k", GROUP="kvm", MODE="0660"
should give /dev/net/tun proper permissions. In practice, this doesn't seem to be the case, and though it is a kludge, one can simply add lines like
chown root:kvm /dev/net/tun
chmod 0660 /dev/net/tun
to /etc/rc.local. This will definitely work. If the reader only uses kvm on occasion, they can simply make a little script with those lines, save it as something like tunperms.sh (or a better name) and just run it, either as root or with root permissions, when you want to use bridged networking.
For the impatient, here is our simple script. We'll explain it afterwards. This is assuming that you're on a 192.168.1.0/24 network with no DHCP server.
#!/bin/sh
PATH=$PATH:/usr/sbin:/sbin
sudo brctl addbr br0
sudo ifconfig eth0 0.0.0.0
sudo brctl addif br0 eth0
sudo ifconfig br0 192.168.1.120 netmask 255.255.255.0 up
sudo route add -net 192.168.1.0 netmask 255.255.255.0 br0
sudo route add default gw 192.168.1.1 br0
sudo tunctl -b -u john
sudo ifconfig tap0 up
sudo brctl addif br0 tap0
export SDL_VIDEO_X11_DGAMOUSE=0
sudo iptables -I RH-Firewall-1-INPUT -i br0 -j ACCEPT
qemu-kvm ~/win2k.img -m 512 -net nic -net tap,ifname=tap0,script=no
From the above guide I did everything until
sudo ifconfig br0 192.168.1.120 netmask 255.255.255.0 up
Which turns off my remote connection and does not do anything for a long time. until I reboot server. It seems to only be successful at disconnecting the server's connectivity.
Unable to get internet connectivity.
Not sure how to set up the connectivity. Also viewed:
And ran the following commands:
iptables -t nat -A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p tcp -j MASQUERADE --to-ports 1024-65535
iptables -t nat -A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -p udp -j MASQUERADE --to-ports 1024-65535
iptables -t nat -A POSTROUTING -s 192.168.122.0/24 ! -d 192.168.122.0/24 -j MASQUERADE
iptables -t nat -A POSTROUTING -s 192.168.122.0/24 -o eth0 -j SNAT --to-source <my server 19 here>
iptables -t filters -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -t filters -A FORWARD -s 192.168.122.0/24 -i br0 -j ACCEPT
iptables -t filters -A INPUT -s 192.168.122.0/24 -i br0 -j ACCEPT
