Re: [Xen-users] Cannot access to Apache on Xen VM

[Age_M <Age_M@xxxxxx>]

Hi Freddie,

there is another workaround so you don't have to do that stuff manually.
go to your /etc/xen/scripts directory and edit the xen-network-common.sh

scroll down until you see the following function:

add_to_bridge ()

modify the function from this:
add_to_bridge () {
   local bridge=$1
   local dev=$2

   # Don't add $dev to $bridge if it's already on a bridge.
   if [ -e "/sys/class/net/${bridge}/brif/${dev}" ]; then
       ip link set ${dev} up || true
       return
   fi
   brctl addif ${bridge} ${dev}
   ip link set ${dev} up
}

to this (only the last line with 'ethtool' in it:

add_to_bridge () {
   local bridge=$1
   local dev=$2

   # Don't add $dev to $bridge if it's already on a bridge.
   if [ -e "/sys/class/net/${bridge}/brif/${dev}" ]; then
       ip link set ${dev} up || true
       return
   fi
   brctl addif ${bridge} ${dev}
   ip link set ${dev} up
   ethtool -K ${dev} tx off
}

So now, everytime a virtual network device is added to the bridge, the 
script will turn off checksumming on this device.
Have a nice day
Greetz Age_M



freddie weng wrote:
> Hi Age_M,
>  
> It works!
> Thank you so so much!!
> I did exactly what you said and now I can access to the apache perfectly!!
> You are so nice ~
>  
> all the best,
> Freddie
>
> */Age_M <Age_M@xxxxxx>/* wrote:
>
>     Hi Freddie,
>
>     maybe it's a checksum problem. try to disable transfer
>     checksumming with
>     ethtool.
>     First you need to check which ID your domU has:
>
>     # xm list
>
>     Then you turn off tx checksumming with ethtool:
>
>     # ethtool -K vif.0 tx off
>
>     So for a domU with ID 12 it would be:
>
>     # ethtool -K vif12.0 tx off
>
>     Hope it helps,
>     Greetz Age_M
>
>
>     freddie weng schrieb:
>     > Hi all,
>     >
>     > I have installed an apache server on my Virtual Machine but I
>     can't access to that URL from outside.
>     > However I can ping the virtual machine from outside successfully.
>     > Do you have any ideas about this issue?
>     >
>     > thanks in advance,
>     > freddie
>     >
>     >
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