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Illustration of a flying bird.

Category: Linux

  • Infiniband Setup: 40Gbs speed on the cheap!

    [et_pb_section admin_label=”section” background_color=”#2ea3f2″ inner_shadow=”off” parallax=”on”][et_pb_row admin_label=”row”][et_pb_column type=”4_4″][et_pb_blurb admin_label=”Blurb” url_new_window=”off” image=”” animation=”bottom” background_layout=”light” text_orientation=”center” use_icon=”off” icon_color=”#45c4ec” use_circle=”off” circle_color=”#45c4ec” use_circle_border=”off” circle_border_color=”#45c4ec” icon_placement=”top” title=”I wanted fast Ethernet, I found Infiniband” use_icon_font_size=”off” use_border_color=”off” border_color=”#ffffff” border_style=”solid”] [/et_pb_blurb][/et_pb_column][/et_pb_row][et_pb_row admin_label=”row”][et_pb_column type=”4_4″][et_pb_text admin_label=”Text” background_layout=”dark” text_orientation=”center” use_border_color=”off” border_color=”#ffffff” border_style=”solid”] Infiniband Setup Setup Infiniband 40Gbs IPoIB on Ubuntu/Debian/Proxmox Load missing modules nano /etc/modules mlx4_ib mlx4_en…

  • Proxmox, Ceph, and Linux Helps

    Passwordless SSH If you don’t want to be prompted for a password each time rsync makes a connection — and you don’t — make sure that you have rsync set up to log in using an SSH key rather than a password. To do this, create an SSH key on the local machine using ssh-keygen…

  • Create Windows 8.1 accessible samba shares with user level authentication

    I have had the hardest time getting Windows to access user level protected Samaba shares until today. I found out how to properly add a samba user (webmin does not seem to do it properly on it’s own). I am using Ubuntu 12.04 LTS. (replace SAMBAUSERNAME with the name you want to use) sudo useradd…

  • Extend LVM disk for virtual machine server or any server

    I am doing this on proxmox 1) login to the proxmox server 2) cd to the disk you need to expand [box] cd /var/lib/vz/images[/box] 3) Increase the disk size [box] qemu-img resize diskimage.zzz +[size in GB you want to expand]G[/box] 4) boot your VM with gparted or partition magic live iso 5) expand the volume…

  • Install Headless Virtualbox 4.1 on Ubuntu 12.04 LTS Precise

    This is assuming a 64bit install and the latest versions as of 7/7/2012 sudo nano /etc/apt/sources.list add this line to the end deb precise contrib wget -q -O- | sudo apt-key add – sudo apt-get update sudo apt-get install dkms sudo apt-get install virtualbox-4.1 wget sudo VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.1.18-78361.vbox-extpack  

  • Rsync and SSH – Passwordless Login

    Making remote copies What if you want to copy files offsite to a remote host? No problem — all you need to do is add the host and user information. So, for instance, if you want to copy the same directory to a remote host, you’d use: rsync -ave ssh –delete /home/user/dir/ If you…

Painting of ducks in the water.
Illustration of a flying bird.