wiki:jazz/11-04-21

Version 2 (modified by jazz, 14 years ago) (diff)

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2011-04-21

  • hadoop.nchc.org.tw 維護
    • 在 dmesg 看到很多 IPv6 錯誤訊息
      [3606868.273337] IPv6 addrconf: prefix with wrong length 112
      [3607061.676147] IPv6 addrconf: prefix with wrong length 112
      [3607061.676151] IPv6 addrconf: prefix with wrong length 112
      
    • [參考] IPv6 addrconf: prefix with wrong length 修改 /etc/sysctl.conf 加入
      net.ipv6.conf.all.accept_ra = 0
      net.ipv6.conf.all.autoconf = 0
      

Virtualization

  • 目前在 debian 中有關虛擬化的幾個套件
    • virt-top - 透過 libvirt 來查詢整體的資源使用量
    • virt-what - 可以判斷目前是跑在 xen 還是 kvm
    • virtinst - 透過 libvirt 執行產生新虛擬機器映像檔的工具
      • virt-install: provision new virtual machines virt-clone: clone existing virtual machines
      • virt-image: create virtual machines from an image description
      • virt-convert: convert virtual machines between formats
    • virt-viewer - Displaying the graphical console of a virtual machine - 可以把虛擬機器的 console 透過 VNC 顯示過來。