// VIEW BASED AUTHORITATIVE ONLY NAME SERVER FOR EXAMPLE, INC.
// MAINTAINED BY: ME MYSELF ALONE
// CHANGELOG:
// 1.  9 july 2003 - DID SOMETHING
// 2. 16 july 2003 - DID SOMETHING ELSE
// 3. 23 july 2003 - DID SOMETHING MORE
//
// GLOBAL OPTIONS
options 
{
    directory "/var/named";
    // VERSION STATEMENT - INHIBITED FOR SECURITY
    // (AVOIDS HACKING ANY KNOWN WEAKNESSES)
    version "not currently available";
};
//
// LOG TO /var/log/example.log ALL EVENTS
// FROM INFO UP IN SEVERITY (NO DEBUG)
// DEFAULTS TO USE 3 FILES IN ROTATION
// BIND 8.x LOGGING MUST COME FIRST IN THIS FILE
// BIND 9.X PARSES THE WHOLE FILE BEFORE USING THE LOG
// FAILURE MESSAGES UP TO THIS POINT ARE IN (syslog)
// TYPICALLY /var/log/messages
//
logging
{
    channel example_log
    {
        file "/var/log/named/example.log" versions 3 size 2m;
        severity info;
        print-severity yes;
        print-time yes;
        print-category yes;
    };
    category default
    {
        example_log;
    };
};
// PROVIDE RECURSIVE QUERIES AND CACHING FOR INTERNAL USERS
view "goodguys" 
{
    match-clients { 192.168.0.0/24; }; // OUR NETWORK
    recursion yes;
    // REQUIRED ZONE FOR RECURSIVE QUERIES
    zone "." 
    {
        type hint;
        file "root.servers";
    };
    zone "example.com" 
    {
        type master;
        // PRIVATE ZONE FILE INCLUDING LOCAL HOSTS
        file "view/master.example.com.internal";
    };
    // REQUIRED LOCAL HOST DOMAIN
    zone "localhost" in
    {
        type master;
        file "master.localhost";
        allow-update{ none; };
    };
    // LOCALHOST REVERSE MAP
    zone "0.0.127.in-addr.arpa" in
    {
        type master;
        file "localhost.rev";
        allow-update{ none; };
    };
}; // END VIEW

// EXTERNAL HOSTS VIEW
view "badguys" 
{
    match-clients { "any"; }; // ALL OTHER HOSTS
    // recursion not supported
    recursion no;
    zone "example.com" 
    {
        type master;
        // ONLY PUBLIC HOSTS
        file "view/master.example.com.external";
    };
}; // END VIEW

// VIEW BASED GEOGRAPHIC DNS SERVER FOR EXAMPLE, INC.
// MAINTAINED BY: ME MYSELF ALONE
// CHANGELOG:
// 1.  9 july 2009 - DID SOMETHING
// 2. 16 july 2009 - DID SOMETHING ELSE
// 3. 23 july 2009 - DID SOMETHING MORE
//
// GLOBAL OPTIONS
options 
{
    directory "/var/named";
    // VERSION STATEMENT - INHIBITED FOR SECURITY
    // (AVOIDS HACKING ANY KNOWN WEAKNESSES)
    version "Name is Bind, James Bind";
    // AUTHORS NOTE: No IDEA WHO CAME UP WITH THE CLEVER TEXT BUT IF YOU EMAIL
    // WE'D BE MORE THAN HAPPY TO CREDIT IT YOU - YOU DESERVE IT
    allow-update{ none; };  // DEFAULTED IF NOT PRESENT
    recursion no;         // AUTHORITATIVE ONLY
};
//
// LOG TO /var/log/example.log ALL EVENTS
// FROM INFO UP IN SEVERITY (NO DEBUG)
// DEFAULTS TO USE 3 FILES IN ROTATION
// BIND 9.x PARSES THE WHOLE FILE BEFORE USING THE LOG
// FAILURE MESSAGES UP TO THIS POINT ARE IN (SYSLOG)
// TYPICALLY /var/log/messages
//
logging
{
    channel example_log
    {
        file "/var/log/named/example.log" versions 3 size 2m;
        severity info;
        print-severity yes;
        print-time yes;
        print-category yes;
    };
    category default
    {
        example_log;
    };
};
// MAP SERVICE TO GEOGRAPHIC ORIGINATION
view "gondor" 
{
    match-clients { 172.15/16; 172.14/16; }; // ORIGINATE IN GONDOR
    zone "example.com" 
    {
        type master;
        // ZONE FILE WILL RETURN www.example.com = 172.15.1.1
        file "view/master.example.com.gondor";
    };
}; // END VIEW

view "mordor" 
{
    match-clients { 172.16/16; }; // ORIGINATE IN MORDOR
    zone "example.com" 
    {
        type master;
        // ZONE FILE WILL RETURN www.example.com = 172.16.1.1
        file "view/master.example.com.mordor";
    };
}; // END VIEW

// DEFAULT FOR EVERYTHING ELSE LIES IN A DEFAULT VIEW
view "default"
{
    match-clients { "any"; }; // MUST BE IN THE LAST CLAUSE
    zone "example.com" 
    {
        type master;
        // ZONE FILE WILL RETURN www.example.com WITH DEFAULT (WORLDWIDE) IP
        file "view/master.example.com.default";
    };
};