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Upgrade DIR-850L firmware to v1.09

My DIR-850L has firmware 1.06 now.  Yesterday, I saw 1.09 is released in September, 2013.

I checked the release notes of it, below.

Firmware:   v1.09   9/17/2013 NA and EU Region
Revision Info:
¤ Block traffic between WAN and LAN ports during booting
¤ Fixed UPnP security issue
¤ Improved wireless IOT issue
¤ Enhanced direct access stability with mydlink SharePort app

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Implement New Relic server service on Centos 6.4 64bit

It is a very popular service on web application and mobile apps. I like its server service.

The servers New Relic supported includes Linux, Windows.:

  • Centos / Red Hat
  • Ubuntu / Debian
  • Other Linux
  • Windows 2003, 2008


I followed the instruction of Centos to install the service on my ServerMania VPS.
Step 1: SSH to VPS as Root
Step 2: Add the New Relic yum repository

rpm -Uvh

step 3: Install the Server Monitor package

yum install newrelic-sysmond

Step 4: Configure & start the Server Monitor daemon
Add license key to config file: (See /etc/newrelic/nrsysmond.cfg for other config options)

nrsysmond-config --set license_key=your_own_key

Start the daemon:

/etc/init.d/newrelic-sysmond start

Step 5: Done!
The data is update just in minutes.

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Install Memcached with Admin Panel on Centos 6.4 64bit

Since I installed PHP 5.5.3 and Zend OPcache v7.0.3, it is good for WordPress opcode already. For other cache optimization, I need a cache system. I choose Memcached server.

Part 1. Install Memcached Server

I install Memcached with following command:

yum install memcached

Then change the setting of it.

 vi /etc/sysconfig/memcached

Change the last line of option as below to restrict access from only. and CACHSIZE to 128M.


Start Memcached

/etc/init.d/memcached start

Memcached doesn’t start by default upon boot, we want it to start upon boot.

chkconfig --levels 235 memcached on

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Install LEMP on Centos 6.4 64bit at Burst.Net VPS

It is a guide to install LEMP on a Centos 6.4 64bit VPS at It is also working on other VPS. LEMP stands for Linux, NginX, MySQL, PHP.

First of all, rebuild the OS on VPS with Centos-6.2-x86_64.

Other VPS providers have similar interface to rebuild / reload operation system.

After 5 to 10 minutes, the VPS is ready to use.

SSH to VPS through PUTTY with root account.  The following installation steps will be done in terminal window.

1) Update the system to Centos 6.4

yum update

There are 158 updates need to be installed. So just confirm it and wait all the updates completed. Then the Centos is updated from 6.2 to 6.4.

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How to Install ZPanel on CentOS 6.4 64bit

About ZPanel

ZPanel is a free to download and use Web hosting control panel written to work effortlessly with Microsoft Windows and POSIX (Linux, UNIX and MacOSX) based servers or computers. This solution can turn a home or professional server into a fully fledged, easy to use and manage web hosting server.

It can be used as a reseller system for web hosting. The program runs on top of an Apache, MySQL, PHP.

The latest version of ZPanel is v10.1.0

How to Install ZPanel on Centos 6.4 64bit system

step 1:

Download the installation script.

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Update Skype manually

I checked software update information often. If there is new version come up, I will update it right away.
It is clear that Skype has a new version released. The one on my Windows 7 is I used Skype built-in Check For Updates function to check the new version. It said, no update found.
I go to the Skype official site, and download the Skpyesetup.exe file, re-install Skype program. It is still I don’t know what’s wrong of the Skype installation program.

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Install htop on Linode VPS

htop is an interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses.
If you used top command before, I would like to tell you that htop is a replacement of top, but even better.

Since I have rpmforge Repository on my VPS, the installation is as simple as one command.

yum install htop

When finished, I run htop command.

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How to Install a Mobile Style on phpBB 3

It is based on phpBB 3.0.11. I checked the Google Analytics report. There are about 20% users using cellphone or iPad.
To accommodate these users, I installed a mobile style on it and added the Mobile device detection facilitate.

There are 4 steps to install it. Very easy.

Step 1
Download the Style package and unzip it.
Blue/Orange style
Unzip it and the folder structure looks like below.

Step 2
Upload all files unziped into the Styles folder on server.

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How to install SugarCRM ce on Dreamhost

Here is the guide to show you how to install SugarCRM Community Edition on Dreamhost share hosting plan.

Step 1:
Set up a new domain, subdomain, or folder for Sugar.

Step 2:
Set up a new MySQL database in Dreamhost Web Panel. Write down the mysql host name, user name, password and database name.

Step 3:
Download the latest Community Edition of SugarCRM. It is free version. Then, unzip into a folder such as /home/yourUserName/

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Some tips for Upgrade Windows 7 on Brand name PC

Say, there is a ASUS Laptop, which is shipped with Windows Vista. Now the user want to change it to Windows 7. Here is the tips to upgrade it.
1) Backup up the user files to a safe place. Maybe USB disk or NAS.
2) Go to the official site of Asus, download the latest BIOS and upgrade it to the latest one.
3) Check the BIOS with the tool, Everest Ultimate, or any other tools you like, see if SLIC 2.1 included in the BIOS.
4) If there is SLIC 2.1 , it is ready to install Windows 7 without problem. Just download Windows 7 OEM iso and install it, fresh install or upgrade, both are fine.
5) if there is SLIC 2.0 only, there is something to do.

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