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Check DNS lookup in Tiger

lookupd -configuration

Look for the following in the output:
LookupOrder: Cache FF DNS NI DS
_config_name: Host Configuration


The FF (flat file) refers to your hosts file (/etc/hosts), and Tiger does check its contents before going to DNS and Netinfo. Just a little FYI for those who may not have realized that 10.4 fixed things.


to osx tiger dns guide lookup by minofare on Sep 21, 2007

godaddy wildcard dns entry

To add a wildcard dns entry, make it an A record with proper IP address destination

@ <IP address of web server>
* <IP address of web server>
to dns administration by deckard on Jun 14, 2007

Generate a bind9 rndc key

// description of your code here

dnssec-keygen -a hmac-md5 -b 256 -n HOST mybrandnewkey


The result will be something like "K%2Ftmp%2Fmybrandnewkey.+157+42885", so you do

cat K%2Ftmp%2Fmybrandnewkey.+157+42885.private


Put the key in /etc/rndc.key like this:
key "rndc-key" {
        algorithm hmac-md5;
        secret "Hr1U28EsMhp8r0TEEjAmksoldReEYuiWwQFH0/gkk6I=";
};
to dns bind accelerator by itorres on May 29, 2007

bind9 rndc.conf template

I'm in your /etc, managing your named.

include "/etc/rndc.key";

options {
default-server  127.0.0.1;
default-key     "rndc-key";
};
to dns bind accelerator by itorres on May 29, 2007

bind9 google apps zone template

Change 1.2.3.4 for your accelerator's ip and mydomain.net for your domain name

$TTL 86400
@ IN SOA ns1.mydomain.net. hostmaster.mydomain.net. (
                              2007052701      ; serial
                              3H              ; refresh
                              15M             ; retry
                              1W              ; expiry
                              1D )            ; minimum

                    IN NS     ns1.mydomain.net.
                    IN NS     ns1.everydns.net.
                    IN NS     ns2.everydns.net.
                    IN NS     ns3.everydns.net.
                    IN NS     ns4.everydns.net.

@                   IN TXT    "v=spf1 ip4:1.2.3.4 include:gmail.com~all include:mydomain.joyent.net~all ~all"

@                   IN MX   1 aspmx.l.google.com.
@                   IN MX   3 alt1.aspmx.l.google.com.
@                   IN MX   3 alt2.aspmx.l.google.com.
@                   IN MX   5 aspmx2.googlemail.com.
@                   IN MX   5 aspmx3.googlemail.com.
@                   IN MX   5 aspmx4.googlemail.com.
@                   IN MX   5 aspmx5.googlemail.com.

_xmpp-server._tcp   IN SRV  5 0 5269 xmpp-server.l.google.com.
_xmpp-server._tcp   IN SRV 20 0 5269 xmpp-server1.l.google.com.
_xmpp-server._tcp   IN SRV 20 0 5269 xmpp-server2.l.google.com.
_xmpp-server._tcp   IN SRV 20 0 5269 xmpp-server3.l.google.com.
_xmpp-server._tcp   IN SRV 20 0 5269 xmpp-server4.l.google.com.

_jabber._tcp        IN SRV  5 0 5269 xmpp-server.l.google.com.
_jabber._tcp        IN SRV 20 0 5269 xmpp-server1.l.google.com.
_jabber._tcp        IN SRV 20 0 5269 xmpp-server2.l.google.com.
_jabber._tcp        IN SRV 20 0 5269 xmpp-server3.l.google.com.
_jabber._tcp        IN SRV 20 0 5269 xmpp-server4.l.google.com.


@                   IN A      1.2.3.4
www                 IN CNAME  @
mail                IN CNAME  ghs.google.com.
start               IN CNAME  ghs.google.com.
calendar            IN CNAME  ghs.google.com.
to dns bind accelerator by itorres on May 29, 2007

bind9 0.0.127.in-addr.arpa template

Refered as /var/named/named.local in my named.conf template

$TTL    86400
@       IN      SOA     localhost. root.localhost.  (
                                      1997022700 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum
              IN      NS      localhost.

1       IN      PTR     localhost.
to dns bind accelerator by itorres on May 29, 2007

bind9 localhost.zone template

Localhost zone template.

$TTL    86400
$ORIGIN localhost.
@                       1D IN SOA       @ root (
                                        42              ; serial (d. adams)
                                        3H              ; refresh
                                        15M             ; retry
                                        1W              ; expiry
                                        1D )            ; minimum

                        1D IN NS        @
                        1D IN A         127.0.0.1
to dns bind accelerator by itorres on May 29, 2007

bind9 named.conf template

Replace 1.2.3.4 with your accelerator's public ip.

acl "internals" { 1.2.3.4 ; 127.0.0/8 ; };
acl "everydns" { 64.158.219.0/24; 4.79.232.0/24; 38.99.14.0/24; 216.218.240.206; 80.84.249.169; 63.219.183.200; };
acl "gandi" { 217.70.177.40; }

options {
        directory "/var/named";
        allow-recursion { "internals"; };
        allow-transfer { "internals"; "everydns"; "gandi";};
        statistics-file "/var/log/named.stats";
        listen-on { 127.0.0.1; 1.2.3.4; };
        forwarders { 208.67.220.220; 208.67.222.222; };
};

include "/etc/rndc.key";

controls {
        inet 127.0.0.1 port 953 allow { 127.0.0.1; } keys { "rndc-key"; };
};

logging {
        channel namedlog {
                file "/var/log/named.log" versions 5 size 2m;
                print-time yes;
                print-category yes;
        };
        category xfer-out { namedlog; };
        category security { namedlog; };
        category lame-servers { null; };
};

zone "." { type hint; file "named.root"; };
zone "0.0.127.in-addr.arpa" { type master; file "named.local"; };
zone "localhost" { type master; file "localhost.zone"; };

zone "mydomain.net" { type master; file "mydomain.net.zone"; };
to dns bind accelerator by itorres on May 29, 2007

Flush DNS cache

In Terminal, type:

lookupd -flushcache
to osx dns lookupd by jtnt on Oct 24, 2005

DiG for gtcaz3

dig @dns1.textdrive.com alexandracheshire.com

; <<>> DiG 9.3.1 <<>> @dns1.textdrive.com alexandracheshire.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10904
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;alexandracheshire.com. IN A

;; ANSWER SECTION:
alexandracheshire.com. 2400 IN A 207.7.108.242

;; Query time: 33 msec
;; SERVER: 67.19.231.130#53(67.19.231.130)
;; WHEN: Wed Sep 7 19:59:38 2005
;; MSG SIZE rcvd: 55
to dns dig main domain by rsimplicio on Sep 07, 2005

DiG for gtcaz2

dig @dns1.textdrive.com cheshirelaw.textdriven.com

; <<>> DiG 9.3.1 <<>> @dns1.textdrive.com cheshirelaw.textdriven.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12577
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;cheshirelaw.textdriven.com. IN A

;; ANSWER SECTION:
cheshirelaw.textdriven.com. 2400 IN A 207.7.108.242

;; Query time: 39 msec
;; SERVER: 67.19.231.130#53(67.19.231.130)
;; WHEN: Wed Sep 7 19:55:01 2005
;; MSG SIZE rcvd: 60
to dns dig subdomain by rsimplicio on Sep 07, 2005

DiG for Simplicio.com

dig @dns1.textdrive.com simplicio.com

; <<>> DiG 9.3.1 <<>> @dns1.textdrive.com simplicio.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45365
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;simplicio.com. IN A

;; ANSWER SECTION:
simplicio.com. 1200 IN A 207.7.108.101

;; Query time: 40 msec
;; SERVER: 67.19.231.130#53(67.19.231.130)
;; WHEN: Wed Sep 7 19:37:33 2005
;; MSG SIZE rcvd: 47
to dns dig main domain by rsimplicio on Sep 07, 2005

DiG for gtcaz

dig @dns1.textdrive.com cheshirelaw.com

; <<>> DiG 9.3.1 <<>> @dns1.textdrive.com cheshirelaw.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 57856
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;cheshirelaw.com. IN A

;; Query time: 38 msec
;; SERVER: 67.19.231.130#53(67.19.231.130)
;; WHEN: Wed Sep 7 19:51:25 2005
;; MSG SIZE rcvd: 33
to dns dig subdomain by rsimplicio on Sep 07, 2005

How to flush the local DNS cache on Mac OS X

If you want to add a virtualhost on your Mac OS X box without having to wait around for ages, then the easiest way to do so is to shove a line into /etc/hosts and flush the dnscache. Here's a friendly bash function to throw into your .bashrc:

function edithosts {
        if [ -x "`which $EDITOR`" ] || [ -x "`which $1`" ]
        then
                if [ -x "`which $EDITOR`" ]
                then
                        export TEMP_EDIT="`which $EDITOR`"
                else
                        export TEMP_EDIT="`which $1`"
                fi
                echo "* Using ${TEMP_EDIT} as editor"
                $TEMP_EDIT /etc/hosts && echo "* Successfully edited /etc/hosts"
                lookupd -flushcache && echo "* Flushed local DNS cache"
        else
                echo "Usage: edithosts [editor]"
                echo "(The editor is optional, and defaults to \$EDITOR)"
        fi
        unset TEMP_EDIT
}


More simply, you can just flush the DNS cache manually with:

lookupd -flushcache
to lighttpd virtualhosting shell bash hosts dns cache by nickstenning on Jun 07, 2005 2 Comments
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