Also, I have used Let’s Encrypt to auto renew the SSL certificate every three months which is quite neat. And I am trying to speed up the load time of the page to score better on Google PageSpeed.

So if you know anyone who is looking for a house, you can refer them to her website at https://BuyingHouseAtlanta.com.

[Source]

For secondary the steps is very similar on how you configure the primary. You start off by installing the required package

yum install bind bind-utils -y

Then you can start configuring /etc/named.conf where you add/configure these within the options

        listen-on port 53 { 192.168.2.2; };
        allow-query     { 192.168.1.1; localhost; };
        allow-recursion { localhost; };
        /*

I did include allow-transfer as this is the secondary DNS and will request transfer from the primary.

At below section of /etc/named.conf, I will point to my zones records where here I set them as slave rather than primary

zone "fuchsiaapp.com" {
        type slave;
        file "/var/named/fuchsiaapp.com.db";
        allow-update { none; };
        masters { 192.168.1.1; };
        allow-query     { any; };
};

zone "66.174.107.in-addr.arpa" IN {
        type slave;
        file "/var/named/fuchsiaapp.com.rr.db";
        allow-update { none; };
        masters { 192.168.1.1; };
        allow-query     { any; };
};

After that you just need to restart named process. On CentOS 6.5 you will execute

service named restart

Or CentOS 7 you will run

systemctl restart named.service

Then finally you can run some dig or nslookup to check on your DNS response

We start by getting the required package. I got CentOS 6.5 and CentOS 7 on my primary and secondary DNS VPS. First we need to install the bind package by issuing the following command

yum install bind bind-utils -y

With that, we can start configuring the our DNS server. We shall pretend that my IP is as follows on 2 different subnets:-

primary DNS IP is 192.1.1.1
Secondary DNS IP is 192.2.2.2
Domain: aditest.com
Hosting IP: 188.188.188.188

/etc/named.conf
listen-on port 53 { 192.1.1.1; };
allow-query { 192.1.1.1; 192.2.2.2; localhost; };
allow-transfer { 192.2.2.2; };
allow-recursion { 192.2.2.2; localhost; };

The listen port is to open up an IP on your server for DNS. There may be need to open up firewall/iptables if you have them blocking port 53 TCP and UDP.

Also allow-transfer is to allow the zone file to be transfered to our allowed secondary DNS server.

I did allow recursion on my dns server for both my primary and secondary. But since this is a authoritative dns server, you can actually not have the allow-recursion line and change so that your server is not used as public recursive DNS server

recursion yes;

to

recursion no;

I have added the following in /etc/named.conf for zones record.

zone "aditest.com" {
	type master;
	file "/var/named/aditest.com.db";
	notify yes;
	allow-update { none; };
	allow-query { any; };
	};

This type indicate master as primary DNS Server. File indicating the zone file location.

You will also need a reverse zone on your /etc/named.conf. Where you can see that the IP is actually in reverse

zone "1.1.192.in-addr.arpa" IN {
	type master;
	file "/var/named/aditest.com.rr.db";
	allow-update { none; };
	allow-query { any; };
	};

Then, then next step is to create the zone file

vi /var/named/aditest.com.db

On the file, you will include the following:-

$ORIGIN aditest.com
$TTL 86400
@	IN	SOA	ns87.aditest.com.	admin.aditest.com. ( 
		2016123001 ; serial number
		1800 ; refresh
		3600 ; retry
		604800 ; expire
		1800 ; minimum
		)
@	IN	NS	ns87.aditest.com.
@	IN	NS	ns88.aditest.com.
@	IN	A	188.188.188.188
ns87	IN 	A	192.1.1.1
ns88	IN 	A	192.2.2.2
web1	IN 	A	188.188.188.188
www 	IN 	CNAME 	188.188.188.188
www2 	IN 	CNAME 	www

The SOA line is the Start of Authority.

ns87.aditest.com – primary nameserver
admin.aditest.com – administrator email address translated as admin@adi.test.com (because @ is use for other purpose)

I then have two line of NS record indicating both my primary and secondary nameserver. The IP is then listed on the ns87 and ns88’s A record.

The first A record would be where my domain would be pointed towards.

web1 would be a subdomain whereby it is possible to forward to another host or directory when someone try to get http://web1.aditest.com.

www2 is a Canonical Name (CNAME) which will forward request to the http://www.aditest.com when user tries to access http://www2.aditest.com.

Once that is configured, you will need to restart your named service. On CentOS you will use

service named start

or CentOS 7

systemctl start named.service

From your PC or another host, you should be able to do a dig or nslookup towards your nameserver for the domain

$ dig aditest.com @192.1.1.1

; <<>> DiG 9.10.4-P4 <<>> aditest.com @192.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30856
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;aditest.com. IN A

;; ANSWER SECTION:
aditest.com. 86400 IN A 188.188.188.188

;; AUTHORITY SECTION:
aditest.com. 86400 IN NS ns87.aditest.com.
aditest.com. 86400 IN NS ns88.aditest.com.

;; ADDITIONAL SECTION:
ns87.aditest.com. 86400 IN A 192.1.1.1

;; Query time: 53 msec
;; SERVER: 192.1.1.1#53(192.1.1.1)
;; WHEN: Fri Dec 30 11:54:02 EST 2016
;; MSG SIZE rcvd: 124

• First server I got from ImpactVPS with 512MB, 1 CPU core, 10GB HDD and 500GB of bandwidth + 1 IPv4 + 10 IPv6. For $6/year. Click here
• Second server is from Virmach. Again it is 512MB, 2 CPU core, 15GB HDD and 1TB of bandwidth + 1 IPv4 (hopefully IPv6 by Jan 2017). For $7/year Click here

These are quite good offer considering you are getting your own IPv4 for a year + hosting service. I got both servers at different location as well. This is a limited time offer by the provider. Also notice there is windows server for $15/year 1GB KVM with Windows License which is another crazy deal if you are trying to learn Window Server 2012 R2.

I have already setup a domain of mine using BIND. Both servers acts as primary and secondary authoritative server for my assigned domain. Will share the setup in my next post.

Was at Colombo, Sri Lanka for business and manage to go to Kandy during on of the weekend. It is a great place to visit. Above is a picture of the awesome view from OZO Kandy roof top during our stay there.

Temple of the Sacred Tooth Relic Buddhist temple

A view of the pool and scenary from OZO hotel

Both the garden and huge bamboo tree is capture at the Royal Botanical Garden when we visited Kandy.

Finally, a view from the observatory deck of our train from Kandy to Colombo. It is quite an awesome experience with the kids on ExpoRail.

We all read about the Google CFO, Patrick Pichtte had just recently resigned to spend more time with his family. It is odd that I see this on my Linkedin. Of course I would say this is a fake profile. I had reported it. The contact information indicating some email from @careceo.com which is a China website. At them same time, I don’t think some C level person would add me for my level now, maybe in the future.

Sorry fake Patrick Pichtte, I had to report and block you.

I manage to configure ownCloud on my VPS host and also got an app from iOS store to sync my image with the cloud. The result is pretty awesome.

Also with SSL from my own domain, the traffic is encrypted rather than allow it to pass through the network through normal http port.

Still not quite sure what is with the hype on the new Social Media Ello that seems to gain so much publicity this few days. The main things you need to know is that Ello will be an ad-free social media platform. Here is their interesting manifesto that seems to give it so much hype as the anti-facebook. They will be earning money from features and addons that is optional to their users in the long run.

Are you curious as well? Or simply want to reserve your username first? I got some invites. Go to http://ello.co/join. Use the following code (these are one time use code):

• wheres-white-cards-7c6b74
• yes-somebody-lefthand-0847cb

As for me, the Courier font on website is kind of weird, although I work with these font daily in my daily work on systems. It still has long way to go in terms of functionality and stability. Will post more when I gets more invite code.

/Users/adiwong # sudo ./create_sdcard /Volumes/OPENELEC/
Password:

#########################################################
# #
# OpenELEC.tv USB Installer #
# #
#########################################################
# #
# This will wipe any data off your chosen drive #
# Please read the instructions and use very carefully.. #
# #
#########################################################

What I actually needed to do is to follow the following steps. First to find out the verify the local disk pointing to the SD Card

/Users/adiwong # diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *320.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 319.2 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *31.7 GB disk1
1: Windows_FAT_32 OPENELEC 31.7 GB disk1s1
/dev/disk4
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *29.4 MB disk4
1: Apple_partition_map 32.3 KB disk4s1
2: Apple_HFS Ez7z 2.14 29.3 MB disk4s2
/dev/disk5
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *25.2 MB disk5
1: Apple_HFS tuneupmymac_newim 25.1 MB disk5s1
/dev/disk6
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *29.4 MB disk6
1: Apple_partition_map 32.3 KB disk6s1
2: Apple_HFS Ez7z 2.14 29.3 MB disk6s2

I had the SD Card rename and I know it is 32GB. So from there I know /dev/disk1 is my path towards the SD Card.

Then use the image that is downloaded and launch the following command. NOTE that this would actually wipe out the path, so make sure you are formating the correct path from the earlier command.

/Users/adiwong # sudo dd if=./OpenELEC-RPi.arm-4.0.7.img of=/dev/disk1

If you get the following resource busy error

dd: /dev/disk1: Resource busy

Use this command to unmount and try the above command again

/Users/adiwong # diskutil unmountDisk /dev/disk1
Unmount of all volumes on disk1 was successful