running pf on AWS

There's only FreeBSD AMI available on AWS cloud service currently. Therefore we can get it directly from Market Place if we want to run pf or other related services.

• pf_enable=YES in /etc/rc.conf.
• vi /etc/pf.conf. keep state is by default.
• reboot. then pf should be available now.

opensmtpd setup

mailq to view queue

smtpctl monitor to view realtime status

tail -f /var/log/maillog to view realtime logs

ports ∴ sysutils/coreutils

GNU coreutils supports utf8, which mostly not in the base system.

http://www.openbsd.org/faq/faq10.html#ksh

http://ports.su/sysutils/coreutils

quickly removes all packages

http://www.openbsd.org/faq/upgrade37.html

To quickly remove all packages from your system:

pkg_delete -q /var/db/pkg/*

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