Postfix

Postfix is a free and open source mail transfer agent (MTA), a computer program for the routing and delivery of email. It is intended as...

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License: IBM Public License

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smtpd is not enabled by default. In order to use it as the system mailer, ensure the mail queue is empty, then stop sendmail(8): # pkill sendmail Modify the current mailwrapper(8) settings by editing /etc/mailer.conf: sendmail /usr/sbin/smtpctl send-mail /usr/sbin/smtpctl mailq /usr/sbin/smtpctl makemap /usr/libexec/smtpd/makemap newaliases /usr/libexec/smtpd/makemap Rebuild the aliases database, and enable the daemon: # newaliases # echo "sendmail_flags=NO" >> /etc/rc.conf.local # echo "smtpd_flags=" >> /etc/rc.conf.local # smtpd

listen on lo0
listen on bnx0

map "aliases" { source db "/etc/mail/aliases.db" }

accept from all for local deliver to mbox
accept for all relay

accept from all for domain "unworkable.org" relay

listen on lo0

map aliases { source db "/etc/mail/aliases.db" }
map secrets { source db "/etc/mail/secrets.db" }

accept for local deliver to maildir
accept for all relay via smtp.sonic.net ssl enable auth

char buf[MAXLINELEN];
while (fgets(buf, MAXLINELEN, ifp) != NULL) {
    buf[strcspn(buf, "\n")] = '\0';
    if (buf[0] == '\0')
        continue;
}

June meet-up
Anyway, the first meet-up went extremely well - we had 15 people show up, which was a perfect number for the space. Shannon -jj Behrens gave an excellent talk on building RESTful Web services and Marius Eriksen - in fact a colleague from the OpenBSD project - gave an awesome talk on GeoDjango. Slides for both talks are online, of course.

July meet-up
Metaweb Technologies presenting a comparison of Django and Pylons. Then we have Alec Flett, another Metaweb'er, speaking about all the issues involved in scaling Python web applications.

Check it out
If you are interested in checking out the event, its July 28th, 6pm @ SF Main Public Library’s Stong Room. Full details can be found at pywebsf.org. Or if you are interested in giving a talk, just let me know.

I started using tmux today. It's a terminal multiplexer / task switcher for UNIX-likes, very much in the same vein as GNU Screen. However, it's a from-scratch implementation, designed to be clean, sane and easy to configure. The more liberal 3-clause BSD license is a plus also, since it means that OpenBSD has been able to integrate it into the source tree, so that it's available out of the box.

Comparison with GNU Screen
I've been a heavy screen user for many years - almost all my work is done on remote screen sessions. However, screen configuration has always been essentially black magic to me. For this reason, tmux and its nice manual page is a breath of fresh air. `tmux list-commands' is very straight forward and easy to grok. Furthermore, I like that everything in tmux is scriptable from the command line - you can run commands like `tmux resize-pane-up -t comms' to resize the pane on a session called 'comms'.

The other thing I really like about tmux is its default status bar. Some people might hate this, but I find it very useful to have a clock and a list of windows along with the process executing in them. This took quite some work to set up to my liking in GNU screen, but the default in tmux is great.

My config
One thing I don't much like is the default of C-b as the 'prefix' command. I suppose this makes some sense, since the author doesn't want to clobber GNU screen key bindings. Perhaps he will consider changing it to C-a, like in GNU screen, in the future. In any case, this isn't hard to change. Also, I am constantly using C-a C-a to switch back to the previous window - the default for this action in tmux is C-b l. Much less friendly in my opinion - of course, it's also easy to change!

So here are the contents of my $HOME/.tmux.conf:

set -g prefix C-a
bind-key C-a last-window

Getting tmux
I'm sure that packages exist for most operating systems. You can grab the source from http://tmux.sourceforge.net/. On OpenBSD, you can simply run `pkg_add -i tmux' to get the binary on your system.

UPDATE
Since OpenBSD 4.6, tmux is part of the base system. This means that if you are running OpenBSD 4.6 or later, you don't need to install any packages in order to get tmux.

# install the package
$ sudo pkg_add -i unbound

# edit the config
$ sudo vi /var/unbound/etc/unbound.conf

    local-zone: "inet." static
    local-data: "joust.inet. IN A 192.168.1.1"

    interface: 0.0.0.0
    # Make sure you have a packet filter to block queries from the Internet.
    # Alternatively, set this only for your local network.
    access-control: 0.0.0.0/0 allow

$ sudo /usr/local/sbin/unbound

$ pkg_info -D unbound
Information for inst:unbound-1.2.1p0

Install notice:
You should add:

    syslogd_flags="${syslogd_flags} -a /var/unbound/dev/log"

to /etc/rc.conf.local to create a syslog socket in the unbound chroot.

You may also want to add the following to /etc/rc.local to start unbound
at boot:

        if [ -x /usr/local/sbin/unbound ]; then
                echo -n ' unbound'; /usr/local/sbin/unbound 
        fi

cvs2svn --trunk-only --svnrepos ~/unworkable-svn ~/unworkable-cvs

• Log into your Google Code project with administrator privileges.
• Browse to the 'Source' page (either 'Checkout' or 'Browse' but not 'Changes').
• Scroll to the bottom of the page, and click the 'reset this repository' link, which is sort of hidden.
• Choose the option "Did you just start this project and do you want to 'svnsync' content from an existing repository into this project?"
• Click the big "Reset Repository" button which has a big red warning label beside it.

# This command takes both the path to your Google Code repository
# and the path to the repository you want to import
svnsync init --username YOURUSERNAME 
    https://YOURPROJECT.googlecode.com/svn file:///path/to/localrepos
# This command takes just the path to the Google Code repository.
# It will take a while to complete.
svnsync sync --username YOURUSERNAME https://YOURPROJECT.googlecode.com/svn

/script?key=123abcxyz

/abc/123/123abcxyz

"^/script?key=(([0-9a-f]{3})([0-9a-f]{3}).*)" => "/$2/$3/$1"

RewriteRule ^/script?key=(([0-9a-f]{3})([0-9a-f]{3}).*) /$2/$3/$1

RewriteCond %{QUERY_STRING} key=(([0-9a-f]{3})([0-9a-f]{3}).*)
RewriteRule ^/script /%2/%3/%1

$ sudo pkg_add -i osbf-lua
lua-5.1.4: complete
osbf-lua-2.0.4p1: complete

# Do the following steps under your account, not as root

#1) Create your local osbf-lua dir:
    mkdir $HOME/osbf-lua
# 2) Create your log and cache dirs:
    mkdir $HOME/osbf-lua/log
    mkdir $HOME/osbf-lua/cache
# Note: Old messages in the cache dir should be deleted
# regularly, typically from a cron job, to preserve disk space. 

# 3) Copy the spamfilter config file to your dir:
    cp /usr/local/share/osbf-lua/spamfilter_config.lua \
        $HOME/osbf-lua

# 4) Edit spamfilter_config.lua to set your password
    $EDITOR $HOME/osbf-lua/spamfilter_config.lua

# 5) Change to the current dir to your osbf-lua dir and 
# and create the spamfilter databases (spam.cfc, nonspam.cfc)
     cd $HOME/osbf-lua
     lua /usr/local/share/osbf-lua/create_databases.lua
# 6) Add the following lines to your .procmailrc:

# set OSBF_LUA_DIR to where spamfilter.lua, 
# spamfilter_command.lua, etc were installed

OSBF_LUA_DIR=/usr/local/share/osbf-lua
OSBF_LUA_USER_DIR=$HOME/osbf-lua

:0fw: .msgid.lock
* < 350000 # don't check messages greater than 350000 bytes
| $OSBF_LUA_DIR/spamfilter.lua --udir $OSBF_LUA_USER_DIR

macro index,pager H "~/learn-nonspam.sh"
macro index,pager S "~/learn-spam.sh"

#!/bin/sh
UDIR=$HOME/osbf-lua
LEARN=/usr/local/share/osbf-lua/spamfilter.lua
$LEARN --learn=spam --udir=$UDIR

#!/bin/sh
UDIR=$HOME/osbf-lua
LEARN=/usr/local/share/osbf-lua/spamfilter.lua
$LEARN --learn=nonspam --udir=$UDIR