Skip to main content

Libvirt KVM fixed IP address


When playing with KVM LibVirt Vms, I often need them to have fixed IP address.
Ironically, I enjoy fixing them with DHCP.
Here is the “default” configuration I use in order to fix them.
Redefining the "default" network is done with:

virsh --connect qemu:///system net-destroy default
virsh --connect qemu:///system net-undefine default
virsh --connect qemu:///system net-define /tmp/network.xml
virsh --connect qemu:///system net-start default

Feel free to get inspiration:
<network>                                                   
  <name>default</name>                                      
  <uuid>7efbc96f-94e8-443f-820c-615d2e0331d5</uuid>         
  <forward mode='nat'/>                                     
  <bridge name='virbr0' stp='on' delay='0' />               
  <ip address='192.168.122.1' netmask='255.255.255.0'>      
    <dhcp>                                                  
      <range start='192.168.122.2' end='192.168.122.254' /> 
      <host mac="52:54:00:9a:81:00" name="centos6-00.vm.mihamina.netapsys.fr" ip="192.168.122.132" />
      <host mac="52:54:00:e0:0e:8a" name="centos6-01.vm.mihamina.netapsys.fr" ip="192.168.122.118" />
      <host mac="52:54:00:c1:ff:12" name="debian7-00.vm.mihamina.netapsys.fr" ip="192.168.122.144" />
      <host mac="52:54:00:06:a1:f4" name="debian7-01.vm.mihamina.netapsys.fr" ip="192.168.122.68" />
      <host mac="52:54:00:91:d1:96" name="debian7-02.vm.mihamina.netapsys.fr" ip="192.168.122.92" />
      <host mac="52:54:00:22:20:cd" name="fedora19-00.vm.mihamina.netapsys.fr" ip="192.168.122.20" />
      <host mac="52:54:00:1d:0f:9e" name="fedora19-01.vm.mihamina.netapsys.fr" ip="192.168.122.157" />
      <host mac="52:54:00:2a:a6:41" name="gitlab-c6-01.vm.mihamina.netapsys.fr" ip="192.168.122.235" />
      <host mac="52:54:00:f7:30:03" name="gitlab-c6-02.vm.mihamina.netapsys.fr" ip="192.168.122.54" />
      <host mac="52:54:00:86:a0:d6" name="win7-00.vm.mihamina.netapsys.fr" ip="192.168.122.152" />
      <host mac="52:54:00:e8:a8:b8" name="win7-01.vm.mihamina.netapsys.fr" ip="192.168.122.14" />
    </dhcp>                                                 
  </ip>                                                     
</network>                                                  


Popular posts from this blog

npm run build base-href

Using NPM to specify base-href When building an Angular application, people usually use "ng" and pass arguments to that invocation. Typically, when wanting to hard code "base-href" in "index.html", one will issue: ng build --base-href='https://ngx.rktmb.org/foo' I used to build my angular apps through Bamboo or Jenkins and they have a "npm" plugin. I got the habit to build the application with "npm run build" before deploying it. But the development team once asked me to set the "--base-href='https://ngx.rktmb.org/foo'" parameter. npm run build --base-href='https://ngx.rktmb.org/foo did not set the base href in indext.html After looking for a while, I found https://github.com/angular/angular-cli/issues/13560 where it says: You need to use −− to pass arguments to npm scripts. This did the job! The command to issue is then: npm run build -- --base-href='https://ngx.rktmb.org/foo&

Jenkins invalid privatekey

Publish over SSH, Message "invalid privatekey:" With quite recent (June-July 2020) installations of Jenkins and OpenSSH, I have the following error message when using the "Deploy overs SSH" Jenkins plug-in and publishing artifacts to the target overs SSH: jenkins.plugins.publish_over.BapPublisherException: Failed to add SSH key. Message [invalid privatekey: [B@d8d395a] This problem seems to be referenced here: https://issues.jenkins-ci.org/browse/JENKINS-57495 Just regenerate a key with the right parameters To solve it: ssh-keygen -t rsa -b 4096 Or ssh-keygen -t rsa -b 4096 -m PEM

Emacs TypeScript Development

Emacs Configuration for Typescript In order to comfortably develop on Node, React or Angular projects with Emacs, TIDE is a good solution. We have TypeScript code highlight (that is the minimum!) and code completion based on the codebase (not only on locally defined and builtins) In order to achieve that: Install Emacs (24+) Install Node Install Typescript (which will provide "tsserver") Install TIDE and some usefull dependencies Configure Emacs to use all those Node is then installed in " /home/mihamina/Apps/node-v12.18.0-linux-x64/bin ": you should add it to your PATH. Installing Typescript is done with: npm install --save typescript @types/browserify After that, "tsserver" will be in " /home/mihamina/node_modules/.bin " Then comes the installation of TIDE: With the Emacs package manager, M-x package-install , install "tide". Do the same for "web-mode", "flycheck", "company" "js2-mode" and "