djbdns/files/tinydns-setup

   1 #!/bin/bash
   2
   3 #
   4 # source functions.sh for einfo, eerror and ewarn
   5 . /etc/init.d/functions.sh
   6
   7 setup() {
   8         echo
   9         echo
  10         einfo "tinydns Setup"
  11         echo
  12         echo ">>> More information on this package can be found at"
  13         echo ">>> http://cr.yp.to/djbdns/tinydns.html"
  14         echo
  15         echo "If you have previously setup tinydns, those directories will"
  16         echo "not be overwritten.  To redo setup, delete your"
  17         echo "tinydns dir tree first."
  18         echo
  19         echo '(press enter to begin setup, or press control-C to abort)'
  20         echo
  21         read
  22
  23         echo
  24         einfo "Install location"
  25         echo
  26         echo "Where do you want tinydns installed?"
  27         echo "Ex. /var would install dnscache in /var/tinydns."
  28         echo "!!No trailing slash!!"
  29         echo
  30         read -p "[/var]> " mypath
  31         echo
  32
  33         if [ "$mypath" == "" ]
  34         then
  35                 mypath="/var"
  36         fi
  37
  38         if [ ! -e ${mypath} ]
  39         then
  40                 echo ">>> Creating ${mypath}..."
  41                 mkdir $mypath
  42         fi
  43
  44         # check for existance of users tinydns and dnslog:
  45         echo
  46         echo
  47         einfo "Checking for tinydns and dnslog user accts ..."
  48         echo
  49         /usr/bin/grep nofiles /etc/group &> /dev/null
  50         if [ $? -ne 0 ]
  51         then
  52                 echo ">>> Adding group nofiles ..."
  53                 /usr/sbin/groupadd nofiles &> /dev/null
  54         fi
  55
  56         /usr/bin/grep tinydns /etc/passwd &> /dev/null
  57         if [ $? -ne 0 ]
  58         then
  59                 echo ">>> Adding user tinydns ..."
  60                 /usr/sbin/useradd -d /dev/null -s /bin/false -g nofiles \
  61                         tinydns &> /dev/null
  62         fi
  63
  64         /usr/bin/grep dnslog /etc/passwd &> /dev/null
  65         if [ $? -ne 0 ]
  66         then
  67                 echo ">>> Adding user dnslog ..."
  68                 /usr/sbin/useradd -d /dev/null -s /bin/false -g nofiles \
  69                         dnslog &> /dev/null
  70         fi
  71
  72
  73         # grab interfaces
  74         addrs=`ifconfig -a | grep "inet addr" | cut -f2 -d":" | cut -f1 -d" "`
  75
  76         echo "Specify an address to which tinydns should bind."
  77         echo "NOTICE: tinydns must be able to bind to port 53 on "
  78         echo "choosen ip address! udp by tinydns - tcp by axfrdns"
  79         echo "Usually this is NOT 127.0.0.1"
  80         echo "Currently running IP addresses:"
  81         echo
  82         echo $addrs
  83         echo
  84
  85         while [ "$myip" = "" ]
  86         do
  87                 read -p "IP to bind nameserver to>" myip
  88         done
  89         echo
  90
  91         if [ ! -e ${mypath}/tinydns ]
  92         then
  93                 einfo "Setting up tinydns..."
  94                 /usr/bin/tinydns-conf tinydns dnslog \
  95                         ${mypath}/tinydns $myip
  96         else
  97                 ewarn "*** tinydns directory currently exists, nothing done."
  98         fi
  99
 100         #add afxrdns
 101         if [ ! -e ${mypath}/axfrdns ]
 102         then
 103                 einfo "Setting up axfrdns..."
 104                 /usr/bin/axfrdns-conf tinydns dnslog \
 105                         ${mypath}/axfrdns ${mypath}/tinydns $myip
 106         else
 107                 ewarn "*** axfrdns directory currently exists, nothing done."
 108         fi
 109
 110         #grant access to axfrdns
 111
 112         echo
 113         echo
 114         einfo "Start service"
 115         echo
 116         echo "tinydns is ready for startup."
 117         echo "Do you want dnscache to be started and"
 118         echo "supervised by daemontools now?"
 119
 120         echo
 121         echo "This requires daemontools to supervise"
 122         echo "/service !!"
 123         echo
 124         echo '(press control-C to abort)'
 125         read
 126
 127         # Don't make symbolic links to / !
 128         # use ../ instead as it gives trouble in chrooted environments
 129         # By Kalin KOZHUHAROV <kalin@ThinRope.net>
 130         local fixedroot_path=`echo ${mypath} | sed -e 's#^/#../#'`
 131         cd /service
 132         ln -sf ${fixedroot_path}/tinydns .
 133         ln -sf ${fixedroot_path}/axfrdns .
 134
 135         echo
 136         echo
 137         einfo "Installation successfull"
 138         echo
 139
 140 }
 141
 142 # check for root user!
 143 if [ `id -u` -ne 0 ]
 144 then
 145         eerror "${0}: must be root."
 146         exit 1
 147 fi
 148
 149
 150 # run setup
 151 setup