compiling ffmpeg on OpenBSD

1) Install required packages like nasm, etc, following the CentOS guide below:
https://trac.ffmpeg.org/wiki/CompilationGuide/Centos

2) Install git, gmake, as well as x264, for H.264 encoding feature:
# pkg_add -v git gmake x264

3) check out the latest source:
$ git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg

4) cd ffmpeg; ./configure --enable-gpl --enable-libx264 ; gmake .

fvwm local setup

REF: Doing ls -a shows the dot-files, too, and I see that there is a file called .fvwmrc in /usr/X11R6/lib/X11/fvwm/.

http://blogs.dailynews.com/click/2008/04/10/configuring-fvwm-in-openbsd-an/

xterm setup & alternatives

xterm alternatives: gnome-terminal, xfce4-terminal, konsole. xterm can be launched with -fg grey -bg black -font 10x20 to change colors.

REF:

https://mkaz.com/2010/04/04/xterm-colors/

http://docstore.mik.ua/orelly/unix3/upt/ch05_18.htm

tcpwrappers replacement

tcpwrappers moved out from OpenBSD 5.6, which can be implemented similarly by AllowUsers in sshd_config to restrict users and ip range.

Compile Wireshark on OpenBSD

Wireshark (older version, say 1.0.0) can be compiled on OpenBSD (--with-krb5=no) following this article: http://cromwell-intl.com/linux/compiling-wireshark-on-openbsd.html .

OpenBSD upgrade with firmware

upgrading with bsd.rd can utilize firmware installed previously! then fw_update will download proper updates after system upgrade.

HiR's Secure OpenBSD, Apache, MySQL and PHP Guide

Install php-mysql and mysql-server. This will install all necessary dependencies, including php, libiconv and several perl modules needed by the MySQL scripts.

$ sudo pkg_add php-mysql mysql-server
Ambiguous: choose package for php-mysql
 a       0: 
         1: php-mysql-5.2.17p16
         2: php-mysql-5.3.27
Your choice: 2
Ambiguous: choose dependency for php-mysql-5.3.27: 
 a       0: php-5.3.27
         1: php-5.3.27-ap2
Your choice: 0

REF: http://www.h-i-r.net/p/hirs-secure-openbsd-apache-mysql-and.html