Linux下开启Libvirtd的tcp监控

使用virsh连接到别的服务器时,使用的是tcp连接

virsh -c qemu+tcp://host/system

如果目标服务器没有开启libvirtd的tcp端口监听时,会出现

error: unable to connect to server at 'host:16509': Connection refused
error: failed to connect to the hypervisor

ubuntu下解决方法

sed -i 's/#listen_tls = 0/listen_tls = 0/g' /etc/libvirt/libvirtd.conf
sed -i 's/#listen_tcp = 1/listen_tcp = 1/g' /etc/libvirt/libvirtd.conf
sed -i 's/#auth_tcp = "sasl"/auth_tcp = "none"/g' /etc/libvirt/libvirtd.conf

vi /etc/default/libvirt-bin
修改为libvirt_opts = "-d -l"  
增加-l监听tcp

service libvirt-bin restart

centos下解决方法

sed -i 's/#listen_tls = 0/listen_tls = 0/g' /etc/libvirt/libvirtd.conf
sed -i 's/#listen_tcp = 1/listen_tcp = 1/g' /etc/libvirt/libvirtd.conf
sed -i 's/#auth_tcp = "sasl"/auth_tcp = "none"/g' /etc/libvirt/libvirtd.conf
sed -i 's/#LIBVIRTD_ARGS="--listen"/LIBVIRTD_ARGS="--listen"/g' /etc/sysconfig/libvirtd

service libvirtd restart
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