Cluster der kan alt/Install DNS server

2014-10-21T07:19:19Z

CKM:

== Install DNS Server ==

Install DNS server
<source lang="text">
apt-get install bind9
</source>

== Configure DNS Server ==

=== 1. Add domain zone ===

Edit /etc/bind/named.conf.local
<source lang="cli">
sudo nano /etc/bind/named.conf.local
</source>
Add the text below to the bottom of the file
<source lang="cli">
# Domain Zone
zone "dka.local." {
type master;
file "/etc/bind/zones/dka.local.db";
};

# For reverse DNS
zone "0.0.10.in-addr.arpa" {
type master;
file "/etc/bind/zones/rev.0.0.10.in-addr.arpa.db";
};
</source>

=== 2. Add DNS servers from your ISP ===

Enter the named.conf.options file
<source lang="cli">
nano /etc/bind/named.conf.options
</source>
Comment out the following lines
<source lang="text">
dnssec-validation auto;

auth-nxdomain no; # conform to RFC1035
listen-on-v6 { any; };
</source>
Add the following to the bottom of the file, just above '};'
<source lang="cli">
forwarders {
172.16.4.77; # Mercantec DNS
};

auth-nxdomain no; # conform to RFC1035
listen-on-v6 { any; };
listen-on { any; };

allow-query { 127.0.0.1; 172.16.4.77/24; 10.0.0.0/24; };
</source>

'''NOTE:''' Be aware of which IP segment you are in. 172.16.4.77 = Hovedforløb 172.16.2.50,172.16.2.51 = Grundforløb

=== 3. Modify the resolv.conf file ===

Edit /etc/resolvconf/resolv.conf.d/base file, and add the following lines. Replace 'dka.local' with your own domain.

<source lang="cli">
nameserver 127.0.0.1
nameserver 10.0.0.1
nameserver 172.16.4.77
domain dka.local
search dka.local
</source>

You may want to lock down the resolv.conf file, making it immutable.

<source lang="cli">
sudo chattr -f +i /etc/resolv.conf
</source>
Any problems with the resolv.conf file, look [http://ubuntuforums.org/showthread.php?t=1978656%7C here]

=== 4. Define zones ===

First make the directory /etc/bind/zones
<source lang="cli">
mkdir /etc/bind/zones
</source>

Second make the file dka.local.db (replace with your own domain)
<source lang="cli">
nano /etc/bind/zones/dka.local.db
</source>

Add the following text to the newly created file <source lang="cli">
; BIND data file for local loopback interface
;
$TTL 604800
@ IN SOA ns.dka.local. root.dka.local. (
8 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS ns.dka.local.
ns IN A 10.0.0.1
cluster IN A 10.0.0.1
node1 IN A 10.0.0.10
node2 IN A 10.0.0.11
node3 IN A 10.0.0.12
node4 IN A 10.0.0.13
</source>

'''Note:''' TTL is set for 1 week.

=== 5. Create a “rev.0.0.10.in-addr.arpa” file for reverse lookup ===

Create the rev.0.0.10.in-addr.arpa file <source lang="cli">
nano /etc/bind/zones/rev.0.0.10.in-addr.arpa
</source> Add the following text <source lang="cli">
$TTL 3D
@ IN SOA ns.dka.local. admin.dka.local. (
2007062001
28800
604800
604800
86400
)
IN NS ns.dka.local.
1 IN PTR ns.dka.local.
1 IN PTR cluster.dka.local.
10 IN PTR node1.dka.local.
11 IN PTR node2.dka.local.
12 IN PTR node3.dka.local.
13 IN PTR node4.dka.local.
</source>

=== 6. Verify domain and DNS entries ===

Restart the network service <source lang="cli">
service bind9 restart
</source>

Dig

<source lang="cli">
$ dig dka.local
</source>

Nslookup

<source lang="cli">
nslookup ns
</source> {{Source cli}}

Cluster der kan alt/Install DHCP server

2014-10-20T14:59:56Z

CKM: /* Install DHCP server */

== Install DHCP server ==

Install DHCP server by download and install the DHCP package

<source lang=cli>
sudo apt-get install isc-dhcp-server
</source>

=== Configure dhcpd.conf ===
Ether the dhcp.conf
<source lang=cli>
nano /etc/dhcp/dhcpd.conf
</source>

Uncomment everything and add the following lines at the bottom of the dhcp.conf file. You have to enter the nodes MAC-addresses. This can be added later on, but if you already know the MAC-addresses on the nodes type them in now

<source lang=cli>

ddns-update-style none;
authoritative;

option domain-name "dka.local";
option domain-name-servers 10.0.0.1;

default-lease-time 3100; # 51 minutes.
max-lease-time 604800; # 1 week

subnet 10.0.0.0 netmask 255.255.255.0 {
option routers 10.0.0.1;
option subnet-mask 255.255.255.0;
option broadcast-address 10.0.0.255;
next-server 10.0.0.1;
filename "pxelinux.0";

# The latest input from layer-9 required us to shift the dynamic
# range from the top half of the subnet down to the bottom half.
# This pool clause will elicit NAKs for the old leases while the
# clients migrate. Remember to remove this once they've all booted
# once or expired.
pool {
range 10.0.0.1 10.0.0.20;
deny all clients;
}
pool {
range 10.0.0.21 10.0.0.254;
}

host node1 {
hardware ethernet <node1 MAC address>;
server-name "node1.dka.local";
fixed-address 10.0.0.10;
}

host node2 {
hardware ethernet <node2 MAC address>;
server-name "node2.dka.local";
fixed-address 10.0.0.11;
}

host node3 {
hardware ethernet <node3 MAC address>;
server-name "node3.dka.local";
fixed-address 10.0.0.12;
}

host node4 {
hardware ethernet <node4 MAC address>;
server-name "node4.dka.local";
fixed-address 10.0.0.13;
}

}

</source>
{{Source cli}}

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Cluster der kan alt/Install DNS server

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