tinydns and dnscache setup on OS X

com.tonykwon.alias.plist

/*
    $ cat /Library/LaunchDaemons/com.tonykwon.alias.plist
    $ launchctl load -w /Library/LaunchDaemons/com.tonykwon.alias.plist
    $ reboot
*/
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.tonykwon.alias</string>
    <key>ProgramArguments</key>
    <array>
        <string>/sbin/ifconfig</string>
        <string>lo0</string>
        <string>alias</string>
        <string>127.0.0.2</string>
        <string>netmask</string>
        <string>0xff000000</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>

create-user-group.sh

# Taken from https://gist.githubusercontent.com/zomo/2468712/raw/c017a56ca65d091cce248ff523b5aaf0d2cde8a5/djbdns-osx-dscl.sh

#!/bin/sh

# taken from http://qmail.jms1.net/djbdns/osx.shtml
# find appropriate uid/gids by $ dscl . -list /Users UniqueID  | sort -n -k2

# if you are working with a directory services path other than the
# local machine, put the correct path here.
DSPATH="."

# if you need different numeric UID/GID values, set them here
NGID="300" # for group djbdns
RUID="300" # for user dnsrun
LUID="301" # for user dnslog

echo dscl "$DSPATH" create /Groups/djbdns PrimaryGroupID $NGID

echo dscl "$DSPATH" create /Users/dnsrun UniqueID $RUID
echo dscl "$DSPATH" create /Users/dnsrun PrimaryGroupID $NGID
echo dscl "$DSPATH" create /Users/dnsrun UserShell /bin/false
echo dscl "$DSPATH" create /Users/dnsrun NFSHomeDirectory /nohome
echo dscl "$DSPATH" create /Users/dnsrun RealName dnsrun

echo dscl "$DSPATH" create /Users/dnslog UniqueID $LUID
echo dscl "$DSPATH" create /Users/dnslog PrimaryGroupID $NGID
echo dscl "$DSPATH" create /Users/dnslog UserShell /bin/false
echo dscl "$DSPATH" create /Users/dnslog NFSHomeDirectory /nohome
echo dscl "$DSPATH" create /Users/dnslog RealName dnslog

echo dscl "$DSPATH" create /Groups/djbdns GroupMembership dnsrun dnslog

Steps

0. create users then hide dnsrun and dnslog users from the login window
    $ sh create-user-group.sh
    $ sudo defaults write /Library/Preferences/com.apple.loginwindow HiddenUsersList -array-add dnsrun dnslog

1. Install daemontools -> http://cr.yp.to/daemontools.html

    $ mkdir /package
    $ cd /package
    $ curl http://cr.yp.to/daemontools/daemontools-0.76.tar.gz -o daemontools-0.76.tar.gz
    $ tar -xvzf daemontools-0.76.tar.gz
    $ cd admin/daemontools-0.76
    $ package/install

    remove "csh -cf '/command/svscanboot &'" from /etc/rc.local as OS X does not use /etc/rc.local
    
2. Install ucspi-tcp -> http://cr.yp.to/ucspi-tcp.html

    $ cd /package
    $ curl http://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz -o ucspi-tcp-0.88.tar.gz
    $ tar -xvzf ucspi-tcp-0.88.tar.gz
    $ cd ucspi-tcp-0.88
    $ make
    $ make setup check
    
3. Install djbdns -> http://cr.yp.to/djbdns.html

    $ cd /package
    $ curl http://cr.yp.to/djbdns/djbdns-1.05.tar.gz -o djbdns-1.05.tar.gz
    $ tar -xvzf djbdns-1.05.tar.gz
    $ cd djbdns-1.05
    $ make
    $ make setup check

4. Setup tinydns

    $ sudo tinydns-conf dnsrun dnslog /usr/local/tinydns 127.0.0.1
    $ sudo echo '127.0.0.2' > /user/local/tinydns/env/IP
    
    add .dev entries to /usr/local/tinydns/root/data
    
    .dev::600::
    +*.dev:127.0.0.1
    
    $ make
    
5. Setup dnscache

    $ sudo dnscache-conf dnsrun dnslog /usr/local/dnscache 127.0.0.1
    $ sudo echo '127.0.0.2' > /usr/local/dnscache/root/servers/dev
    
6.
    $ ln -s /usr/local/tinydns  /service
    $ ln -s /usr/local/dnscache /service
    
7. Test

    $ env DNSCACHEIP=127.0.0.1 dnsqr a php.dev
    $ env DNSCACHEIP=127.0.0.1 dnsqr a www.google.com
    
Adjust cache size

    $ echo 100000000 > /service/dnscache/env/CACHESIZE
    $ echo 104857600 > /service/dnscache/env/DATALIMIT
    $ svc -t /service/dnscache

Adjust concurrent connections ( /service/dnscache/run )

    softlimit -o1500

to.yp.cr.daemontools.plist

/*
    $ cat /Library/LaunchDaemons/to.yp.cr.daemontools.plist
    $ launchctl load -w /Library/LaunchDaemons/to.yp.cr.daemontools.plist
    $ reboot
*/
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>to.yp.cr.daemontools</string>
    <key>ProgramArguments</key>
    <array>
        <string>/command/svscanboot</string>
        <string>&</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>