[Cloud] OwnCloud, a self-owned DropBox-Like Server(Chinese Version)

        相信大多的IT人都有使用DropBox的服務，這個服務讓我們可以將重要的文件，同步到一個網路硬碟，然後不管道哪裡都可以用這個服務將重要的資料在異機、異地取回這些文件。然而這個服務是一個由服務提供者（Service Provide）所維護的系統，若與企業研發相關的重要機密，基於商業機密的考量，可能就無法享用這個服務的便利性了。

        筆者近來找了一些類似DropBox服務的軟體，種類相當多，而且性能都非常好，依據用途的不同可選用不同的套件。

 FTPBox，透過FTPBox套件安裝在Client端就可以將資料同步到FTP Server。看起來當前僅支援Windows平台。

ownCloud，筆者這次測試的軟體，和DropBox非常非常類似，支援多種作業系統：如Mac OS, Linux, Windows, Android...也可以使用WebDAV的方式進行同步。由於測試的結果發現這套軟體的運作非常近似DropBox，且安裝過程較無痛苦，所以是此次最佳的學習範例。另外若企業有具備維護Linux系統的人才，可採用此套軟體簡化備份、並節省大量的建置成本。自第4版開始之後，新加入版本控制功能、檔案加密、還有免安裝Client以拖拉方式進行同步等許許多多的先進能力。。

SparkleShare，鼎鼎有名的同步軟體，主要是以git套件所兜製而成，具有版本控制的功能，很適合專案開發使用。SparkleShare支援了Linux, Mac OS與Windows Vista之後的作業系統。這套系統應是功能最完整且強大的一套，筆者會在ownCloud測試完畢後繼續進行SparkleShare的安裝。

[Backup] Bacula on Ubuntu 12.04 - Chinese Version

        Bacula是一套企業級的備份軟體，且Open Source。

        這套軟體的設定過程非常複雜，所以在學習過程中有一些困難，但是實際操作後應可漸漸習慣。它的參考文件相當豐富，且備份功能十分完備。

        若小型企業在導入備份系統時，覺得市面上的備份方案太貴了，可以採用這套系統，如此軟體的採購就全部省下來了。

[Linux] NIC Card Reorder on RedHat/ CentOS

      In some cases, we may clone a system for deploy a new system quickly, then encountered a problem on NIC order.

      Let's resolve this problem.


Edit this file:     

/etc/udev/rules.d/70-persistent-net.rules


The content of this file is shown below:
# PCI device 0x14e4:0x164c (bnx2) (custom name provided by external tool)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?", ATTR{address}=="00:11:22:33:44:55", ATTR{type}=="1", KERNEL=="eth", NAME="eth0"

# PCI device 0x8086:0x10d6 (igb) (custom name provided by external tool)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?", ATTR{address}=="aa:bb:cc:dd:ee:ff", ATTR{type}=="1", KERNEL=="eth", NAME="eth1"

Just set the device name as the output "ifconfig -a" accordingly.

[CMS] WordPress Installation Guide on Ubuntu 12.04

No more description, Just do it.

First of all, REMEMBER TO INSTALL MYSQL-SERVER unless you have mysql-server(local or remote will do) already.

1. a00ylc00@WP-ubuntu1204:~$ sudo  apt-get install  mysql-server

2. a00ylc00@WP-ubuntu1204:~$ sudo  apt-get install wordpress
3. a00ylc00@WP-ubuntu1204:~$ sudo ln -s /usr/share/wordpress /var/www/wordpress
  

a00ylc00@WP-ubuntu1204:~$ cd /usr/share/doc/wordpress [You could ignore this step. The content of README.Debian tell us what to do.] JUMP to point 5.
    a00ylc00@WP-ubuntu1204:/usr/share/doc/wordpress$ ls
    changelog.Debian.gz  copyright  examples  NEWS.Debian.gz  README.Debian
    a00ylc00@WP-ubuntu1204:/usr/share/doc/wordpress$ less README.Debian
   
#### Quick setup

Setup apache to point to /usr/share/wordpress. See the examples/apache.conf

Database setup can be done with the help of a script in examples/setup-mysql
################

Good point! Let's setup the Database by examples/setup-mysql

Before that, here is a bug that would interrupt the configuration if you did not create a "debian.cnf" file before creating database.

4. a00ylc00@WP-ubuntu1204:/usr/share/doc/wordpress/examples$ sudo touch /etc/mysql/debian.cnf


5. a00ylc00@WP-ubuntu1204:/$ sudo bash /usr/share/doc/wordpress/examples/setup-mysql -n wordpress [your wordpress IP address]



PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_req=1 ttl=64 time=0.027 ms

--- localhost ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.027/0.027/0.027/0.000 ms
/etc/wordpress/config-localhost.php written
Trying to create upload directory: /var/www/wp-uploads/localhost
Setting up permissions
Goto http://localhost to setup Wordpress
a00ylc00@WP-ubuntu1204:~$/etc/init.d/apache2 restart


Browse http://localhost/wordpress on your browser.



Web Installation.

Installation success.






















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Dashboard of your Wordpress site.

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Wordpress installtion completed.