• Quick Installation Guide
  • Step by Step
  • Admin User Guide
01. Introduction
02. Hardware Requirement
03. Acquire the Software
04. System Configuration
05. Recover System via RAID
  • Recover System via RAID
06. FAQ

Recover System via Software RAID

RAID (redundant array of inexpensive drives) can be classified into different types of applications, for example, to cascade multiple hard disk drives into a single logical unit with error checking to recover data while one of the hard drives is failed, or to mirror each other. Azblink SOHORAID (software RAID) provides a disk mirroring service to protect your server’s data.  Those steps need be performed on Console.

For simplicity, let's make the following assumption: originally, two partitions  /dev/hda1 and /dev/hdc1 are used for the MD device "/dev/md0” for RAID1 (mirroring).  And then, "/dev/hdc1" is crashed so that it is kicked out of the device "/dev/md0".
At this moment, you use another hard drive to replace /dev/hdc –
How do you rebuild "/dev/md0”?  The steps are

1. Partition /dev/hdc so that "/dev/hdc1" can have proper size
What is "proper" size?  The answer is the size exactly as the same as "/dev/hda1".
You can use the following to know how "/dev/hda" is partitioned:

#  fdisk -l  /dev/had

And then, use

#  fdisk  /dev/hdc

(It will give you a menu-driven User interface. You can start from there. )

2.  format "/dev/hdc1" after partitioning "/dev/hdc"
Use the command

#  mke2fs  /dev/hdc1
(This will do the formatting of hard drive)

# tune2fs -j /dev/hdc1
(Make it as journal file system)

# tune2fs -c 0 -i 0  /dev/hdc1
(This will make the system not check file system so often.)

3. Let "/dev/hdc1" join to "/dev/md0"


# mdadm  /dev/md0 -a  /dev/hdc1

In summary, you only need to know how to use the following commands:
fdisk (for disk partitioning)
mke2fs  (format it as "ext2" file system)
tune2fs  (make it as "ext3" after doing "mke2fs”)
mdadm  (RAID utility program)


Basic Web Setting

After the system installation be finished, take the CD out, reboot the machine, and then start the basic network setting for the system.

There are two modes to configure the host, one is console mode on the local host, and the other is Web interface mode on Client. You can choose the one you like or just by the network environment of that time.

Console Mode --- configure on local host

A. Input account and password to login into console configuration interface.


B. You will see 7 options after login in

 1. IP Address:
 2. Netmask:
 3. Default Gateway:
 4. Save and Reboot
 5. Reset to CD setting (DHCP) and Reboot
 6. View Current Active Values
 7. Exit without Saveing Changes

C. Is there any fixed ip ready for configuration?

  Yes, type fixed IP address, Netmask and Default Gateway into option 1.2.3. severally. You can use up
  and down arrow to choose the option who needs edit, and then press enter to configure. After option 1.2.3
  be correctly configured, you can use option 4 to save these changes and reboot the machine. (If you have
  no idea about the Netmask and Default Gateway, you can just refer to the Completion List provided by your

  No, if there is a DHCP server providing the IP assignment services in your network, you can just use option6
  to check the IP address assigned by the system. After checking eth0, please write down the IP address, and
  remember to use option 7 to quit the Console interface.

D. By the IP address you set or the one obtained from DHCP, you can view the configuration page of the
   system host via Web browser on remote Client.

※ DHCP server exists in your network, but if you find eth0 shown as IP when you check current system value, please check if your network cables plug into wrong place (eh0 and eth1 may been exchanged), or if there are some problems on other equipments. (Refer to Q&A in the manual)

Web interface Mode --- configure at sub-network

A. Is the host, which you installed system on, connected by other hosts?

  Yes, please confirm the host is the only DHCP sever (that is to say the network should not have other
  DHCP servers, e.g. IP distributor), and then start from C.

  No, please complete basic network configuration according to B’s instruction.

B. A network cable makes host’s eth1 port and the Hub connected. And use another cable to connect to
  Hub, let the other end of this cable link to a common Client computer.

C. Choose one Client computer from the sub-network which connected to the system host.

D. Open command prompt on the Client (suppose it’s a Windows machine), type “ipconfig” and then press
 “Enter” button, check whether the Default Gateway is or not?

  Yes, just close the command prompt, enter into next step.

  No, type “ipconfig/release” to release the old IP in your computer, and then type “ipconfig/renew” to get
  new assigned IP.
  (If you are still unable to obtain new IP, please check if the network has other DHCP sever or not, or maybe
  TCP/IP of this Client does not use the mode of “Obtain an IP Address Automatically”.)

E. Open your Browser, and type at the address bar to link. When you visit the page at the
  first time, you will see 4 items;

  Host Name:Please set Host Name for this host.
  Admin Password:Default password is admin123.
  New Admin Password:Please set new password.
  Confirm Password:Please confirm your new password.

F. After you enter into system page, go to System>>Network, choose Internet or PPPoE depending on the

  Choose Internet. At the Internet Interface, mostly, you should set the values for IP address / Netmask /
  Default Gateway and then submit, restart your machine and you will find it already connected to Internet.

  Choose PPPoE. If you use PPPoE, remember to check the checkbox of “Turn on PPPoE”. Fill in the account
  and password provided by ISP and submit, reboot your computer, then you can connect to the network.
  (Please refer to the sections of Configuration and Q&A in Quick Installation Guide if you have any questions.)


The Presence of the Running Machine on the Internet

Everything has a start, and has an end.

Deploying a server over the Internet is different from setting up a local server without being revealed to outside people. For a server to be unknown on the Internet by fully-qualified hostname, it requires some registration processes. Furthermore, since the server is known to the public, some security measures should have been taken to avoid the abuse of the server.

This package includes basic elements for network operation, for example, DNS, FTP, firewall, backup storage server, VPN (Virtual Private Network) and Email .

We start from the introduction on Domain name registration with the following diagram:

1. Purchase domain name from the “vendor for domain name registration”

The “Domain Name Registration Vendor” usually will provide a Web interface for you to query your desired domain name. You may find some of the domain names you like have been acquired by other people. It is necessary for you need to find a domain name that is not being occupied. And then make the purchase of the domain name from the “Domain Name Registration Vendor” to complete this step.

2. Purchase Internet bandwidth and obtain “static” IP addresses from your local ISP (internet service provider).

Usually, the ISP will give you a set of IP addresses that may include a list of public IP addresses, the netmask, and the default Gateway. This IP information will be used when you install the software and configure your server. You shall keep the information in a safe place once you obtain that from your ISP.

3. Find a legitimate “DNS host provider”

It is to host your domain name (which you get from step 2) and the associated static IP address (which you get from step 3) record so that everybody on Internet can use your domain name to reach your server. Usually, the “DNS host provider” will provide a Web interface to allow you to input your domain name and the mapped IP address record into their hosted server. This step is completed after you have entered the data into the web page.

4. Update the record at the “Domain Name Registration Vendor” server with the IP addresses of the “DNS host provider”.

At this step, you need to access the website provided by “Domain Name Registration Vendor”. If you do not know the DNS server’s IP addresses of your “DNS host provider”, you can do as follows at your Windows command prompt (the command prompt is reached through Start > Run > cmd), issue the command

  C:\>nslookup DNS-server- name-from-your-provider

The system will respond with the IP address of your “DNS host provider”. Usually, you need to find two IP addresses of the two DNS servers provided by “DNS host provider” (one is called primary DNS host server, the other is secondary DNS host server). The two IP addresses will be entered into the record in the place of “Domain Name Registration Vendor”. We suggest using primary DNS server and secondary server from different places. The Azblink server package also provides DNS server. But to allow people all over the world can query your domain, you should have your domain name placed in different DNS servers to alleviate the load.

5. Wait until it is in effect.

In general, it needs 24 hours to 72 hours to have your domain name record of the server populated across the world so that people can use domain name to access your server.
Those are the general steps as long as you want to have your own private server(s) on Internet.

Hardware Requirement

X86-compliant hardware

Nowadays, this kind of application would not need computation power like large-scaled scientific research projects. Most of the constraints come from input/output operations from one device to another device. So, instead of choosing powerful machines, we suggest using reliable ones.

Hardware with Ethernet interface(s):

If you would like to put the server inside a firewall, it only needs one Ethernet interface on that machine. To use firewall on the same machine, it needs two Ethernet interfaces.

Uninterrupted Power System

For the sake of system stability, we recommend to equip the server with mini UPS (Uninterrupted Power System) to protect the server from sudden power outage. Power outage or power surge would damage some components. To protect the investment, it is a good choice to have UPS ready.


Switch or hub bridges traffic from each host and each host is responsible for collision detection and retransmission. If your network environment has more PCs that can not be plugged into one hub or switch, an additional Ethernet switch shall be used to expand the connectivity.

Wireless Router (Recommended, but not necessary)

Wireless router or wireless access point becomes popular in office and home environment. This device can deliver data just like a wired Ethernet, and provide an efficient solution for people with mobile computers. It should be noticed to deploy wireless access point by avoiding IP address conflict.