This page is under continual development. Content is developed by Robert Mooney, unless otherwise noted.

• OpenBSD ftp-proxy patch: Connection logging and corrections
  This patch was recently included in OpenBSD 3.2-current.
• Using DHCPD w/ multiple interfaces under OpenBSD
  DHCPD under OpenBSD core dumps due to the use of ProPolice (which I assume means DHCPD has an overflow or something else going on the ProPolice doesn't like). At any rate, this text explains how to temporarily fix the problem.
• OpenBSD identd patch: User specified tokens
  This patch was recently included in OpenBSD 2.8-current. Check out the identd -U option.
• CExpat: Expat wrapper class (STL)
  Wrapper class for the expat XML parser. It was meant to read small files, but the concept is probably useful in other XML use cases, since it creates an XML tree heirarchy using STL maps and strings. Compiles under both Windows (Visual C++), and UNIX (tested under OpenBSD). See "readme.txt" for more information.
• DAEX : Digital Audio Extractor for BSD
  Extracts digtial audio from a CD device. Includes CDDB support in its latest version.
• NTP server setup on OpenBSD
  Useful information for getting up and running quickly with the network time protocol.
• PaletteRot Demo: DirectX Palette Rotation
  Rotates a bitmap palette and allows the user to control the direction and speed of the rotation. Provides examples for loading a bitmap, message boxes, and other Windows DirectX/GDI stuff. Sample bitmaps are included. Runs on Windows 9x/NT.
• Patch: DCC High Port Send (BitchX 1.0c18)
  Allows a user to specify -D on the command line, which will have BitchX attempt to use ports in the range 49152 - 65535 when initiating a DCC connection in IRC. The functionality is similar to the OpenBSD ftpd -h option. Applies in the main BitchX/ directory.
• OpenBSD, Apache and IPv6
  The Apache httpd daemon in OpenBSD 3.0 does not support IPv6 natively. It must be patched. Unfortunately...
• OpenBSD, DJBDNS and IPv6
  This document describes the configuration and setup of DJBDNS 1.05 for IPv6 under OpenBSD 2.9...
• Routing Windows 2000 IPv6 traffic with OpenBSD
  Useful information for getting up and running quickly with IPv6.
• Client Certificate Authentication With Apache (An Example)
  Useful information for getting up and running quickly with client authentication via certificates. Demonstrated on OpenBSD and Windows 2000 w/ Apache and Mod_SSL.
• TheShell : Remote UNIX file manager for Windows (via SSH)
  Provides a user with a GUI to transfer and manipulate files through OpenSSH.
• Beagle Bros. Link Page and Local Software Archive
  Beagle Bros.: A very cool Apple ][ software company.
• How to create a project in CVS
  Provides simple instructions for creating a project in CVS.

• Quick fix for the "proc size mismatch" error in OpenBSD
  This usually occurs after updating the kernel sources, rebuilding and rebooting with the new kernel.

  Download the source tree if you haven't already. Update it via CVS.

  cd /usr/src/include && make clean includes
  cd /usr/src/lib/libkvm && make clean all install

  Remake and install the utilities based on libkvm with the following script:

  #!/bin/sh
  
  PATH="/bin:/usr/bin"
  
  CMD=`basename $0`
  TMPFILE0=`mktemp /tmp/$CMD.XXXXXXXXXX` || exit 1
  TMPFILE1=`mktemp /tmp/$CMD.XXXXXXXXXX` || exit 1
  
  find /usr/src/ -name Makefile | xargs grep "\-DUVM" | sed -e "s/\.\//\/usr\/src\//" | sed -e "s/\/Makefile.*//" > $TMPFILE0
  find /usr/src/ -name Makefile | xargs grep "\-lkvm" | sed -e "s/\.\//\/usr\/src\//" | sed -e "s/\/Makefile.*//" >> $TMPFILE0
  
  sort $TMPFILE0 | uniq > $TMPFILE1
  
  for dir in `cat $TMPFILE1 | grep -v libkvm`; do
    cd $dir     
    make clean all install 
  done
  
  rm -f $TMPFILE0 $TMPFILE1
  

  There may be a few additional utilities that need a rebuild, but the above should cover most of them.
• Adding Maildir support to PINE 4.33 under OpenBSD
  Download a fresh copy of PINE 4.33. Download the Maildir patch: http://qmail.nac.net/pine-maildir-4.33.

  Uncompress and untar PINE. Patch PINE from the directory where you untar'ed it: patch -p0 < pine-maildir-4.33. Change to the pine-4.33 directory, and type ./build obs. Install the resulting binaries and man pages.

  If you don't already have /etc/pine.conf, create a new one: pine -conf. Modify /etc/pine.conf so that inbox-path points to the user's Maildir. E.g. inbox-path=~/Maildir.

  For some reason, applying this patch to the OpenBSD ports collection does NOT work. Save your time and energy by doing a native build. :-)

• Appending options to /etc/resolv.conf under OpenBSD, running DHCPD
  Insert your custom options in /etc/resolv.conf.tail. dhclient-script will append these options to resolv.conf the next time it recreates the file.
• Adding Solaris packages located in a directory
  In order to get pkgadd packages to install from a directory (e.g. from the Solaris CD), do something like:

  # cd /cdrom/cdrom0/s0/Solaris_2.6/Product
  # pkgadd -d . SUNWlibm

  In other words, pkgadd using the current directory as your device, and the SUNWlibm directory as the package directory.

• Changing default MX hostname records with tinydns
  In order to have an MX record in tinydns that points to a host other than a.mx.domain.com, add a line to the tinydns/root/data file, similar to the following, and re-make:

  @domain.com::mx.another.com:86400

  This is useful if the MX IP changes often.

• Determining the MAC address of an interface under OpenBSD
  $ netstat -I xl0 | grep Link | awk '{print $4 }'

  Replace "xl0" with your interface.

• Compiling system sources with debugging symbols (gcc -g) under OpenBSD
  $ DEBUG="-g" make

• Deleting to the beginning of the file in VI
  d1G