[libvirt-users] Windows Client
Having newly compiled a Libvirt on a Windows Vista machine (many thanks to Matthias Bolte) I have attempted to connect to a remote Ubuntu machine using virsh.exe. However, the connection fails as follows: $ virsh -c qemu+tcp:///system error: unable to connect to libvirtd at 'localhost': errno=10061 error: failed to connect to the hypervisor 1. I have modified /etc/libvirt/libvirt.conf to set listen_tcp=1. 2. I cannot find /etc/sysconfig/libvirtd so I am unable to set LIBVIRTD_ARGS="--listen". As stated on a previous post, my background is Windows rather than Linux, so I am at a loss as to know where to look next. I would very much appreciate some guidance. Many thanks in anticipation... Tim McLeod
On 04/28/2010 03:38 PM, Tim McLeod wrote:
Having newly compiled a Libvirt on a Windows Vista machine (many thanks to Matthias Bolte) I have attempted to connect to a remote Ubuntu machine using virsh.exe. However, the connection fails as follows:
$ virsh -c qemu+tcp:///system
Well, you have two problems. The first is that this URI is trying to connect to the localhost; you need to specify which host you want to connect to: $ virsh -c qemu+tcp://ubuntu-host.example.com/system The second problem...
1. I have modified /etc/libvirt/libvirt.conf to set listen_tcp=1.
2. I cannot find /etc/sysconfig/libvirtd so I am unable to set LIBVIRTD_ARGS="--listen".
...is that this setup is not enough. When using TCP, by default, we require authentication/encryption to be done via SASL (kerberos). Your best bet for production use is going to be to setup TLS (meaning you have to setup certificates on the destination machine) or setup SASL (meaning you have to setup sasl on the destination machine). Instructions for generating certificates are here: http://libvirt.org/remote.html#Remote_certificates (unfortunately setting up SASL is a bit baroque, and I don't remember all of the ins and outs of it at the moment) If you just want to *test* using plain TCP, then you'll have to change auth_tcp = "sasl" to auth_tcp = "none" (and uncomment it) in /etc/libvirt/libvirtd.conf on the destination machine (though we don't recommend this setup). -- Chris Lalancette
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Chris Lalancette -
Tim McLeod