This article is about how to use NBD(network block device) in a virtualization enviroment, we setup a nbd server and use their disk files to provide block devices for other clients. Also we could use remote nbd by kvm support instead of nbd client.
Read MoreWhen I try using vncviewer to remote access a libvirt virtual machine, it shows error:
VNC Viewer Free Edition 4.1.1 for X - built Apr 2 2015 21:51:06
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Wed Dec 16 11:24:12 2015
main: unable to connect to host: Connection refused (111)
I had a wierd situation recently, could get the ip address, set up apt.conf and proxy correctly, but could not connect network, could ping a inner desttop, then my friend found that it responses twice when ping this ip, so it probably is that the ip is used by other people stactly, so I need to get a new automatic ip address, here is what I did,
Read More1. vim /etc/ssh/sshd_config
Change the setting PrintLastLog to "no"
Change the setting PermitRootLogin to "yes"
2. vim /etc/motd
Change the content to what you want.
3. service sshd restart or /etc/init.d/ssh restart
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