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Articles about freebsd

  1. Writing speed on FreeBSD 8.1-RELEASE amd64

    Recently the question came up how fast the write speed of a disk drive on FreeBSD should be. I decided to test the hardware that I have at my disposal, which is a desktop machine and a laptop.

    The test is writing approximately 10 GB data from /dev/zero to ...

  2. Updating to FreeBSD 8.1-RELEASE

    Updating my desktop to 8.1-RELEASE from 8.0 was pretty straightforward. I used the following steps

    • Made a backup and verified that it can be restored. I cannot stress enough how important that is!
    • Using csup I updated my kernel sources, using the following supfile;
    *default host=cvsup ...
  3. Enlarging networking buffers

    In the hope of increasing networking performance, I’ve set the following sysctls in /etc/sysctl.conf;

    # Increase send/receive buffer maximums from 256KB to 16MB.
    # FreeBSD 7.x and later will auto-tune the size, but only up to the max.
    net.inet.tcp.recvbuf_max ...
  4. Defining command completions for tcsh

    The default interactive shell is tcsh. Recently I discovered that this shell also has the ability to complete your command-line by using the built-in complete command. After some experimentation, I’ve added the following lines to my /etc/csh.cshrc file:

    complete cd 'p/1/d/'
    complete man 'p/1 ...
  5. Creating a virtual server on FreeBSD with a jail

    After Virtualbox crashed my machine, I decided to try my hand at building a virtual server using FreeBSD’s jail facility.

    First, I created a directory to serve as the root directory for my jail;

    slackbox# mkdir -p /usr/local/var/jails/

    Then I built the ...

  6. Breaking and repairing Xorg

    By accident I managed to break X11. The symptoms were that Xorg could not open new programs, and after restarting it complained that it could not save a compiled keymap, so it unloaded the keayboard and mouse modules, leaving X unusable. :-(

    After going into single-user mode, I ran fsck on ...

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