:: Adeeology ::

How to set up Parental Control on Cisco DPC2320 Wireless Gateway

noreply@blogger.com (Anonymous) — Sun, 03 Jan 2016 04:52:00 +0000

My kids are growing bigger. Kid's toys are very different now. Nowaday, they are already used to playing with several electronic gadgets, and I've already bought some consoles such as the PlayStation Portable & the Nintendo DS Lite for my kids. But now they've started to move to play with Android tablets.

Speaking about Android, definitely closely related to internet access. And as we know, the internet is like two sides of the blade. On the one hand, it bring positive benefits, but also dangerous, in the terms of adult contents.

I have two small kids who actively use Android tablets every weekend (yeah, just in the weekend). They require internet access to play games (download and multiplayer) and watching Youtube.

For internet access and cable TV, I have subscribed to the service and Fastnet HomeCable from Firstmedia. I have been given one unit of Cisco DPC2320 Wireless Gateway as its access point.

The Cisco® Model DPC2320 DOCSIS 2.0 Wireless Residential Gateway with Embedded Digital Voice Adapter (DPC2320) is a high-performance home gateway that combines a cable modem, router and 802.11n wireless access point in a single device providing a cost-effective voice and networking solution for both the home and small office

To secure my kids to access some internet content that is unsuitable for their age, so I'd tried to implemented the Parental Control on this device.

And here are the scenarios I've made for my family's internet access :

Member	Devices/Gadgets	Username/Roles	Internet Access
Me	Notebook, Smartphone, PC	parents	all access
Wife	Smartphone	parents	all access
Kid 1	Tablet	kidmode	restricted
Kid 2	Tablet	kidmode	restricted

And here's the scheme i would to configured :

To access the setup page of this modem, please access the URL from the browser http://192.168.0.1. Will pop-up a screen asked for user and password, ignore it because by default the user and password was blank. (Hey do not ask me if case you forgot your password).

Parental Control > Time-Of-Day Rules

I created a profile name 'WeekendOnly'. I want to block my kids' internet access for all day except Sunday and Saturday. And I also set time limitation, only can access from 6.01 am to 8.59 pm.

Parental Control > Basic Setup

On Basic Setup, I created a rule named 'Kids-Safe'. Here, I put some keywords that related to adult contents which the kids shouldn't access it. I also put some domains which knowns showed adult contents. There's also a feature to override the limitation based on password.

Parental Control > User Setup

I've create two user configurations. One named 'parents' (for me and my wife) and the other one named 'kidmode' (for my kids & their friends). For the parents config, just set it as Trusted User and gave duration for 1440 minutes (24 hours). And for the kidmode, I've assigned the Kids-Safe for the Content Rule, WeekendOnly for the Time Access Rule, and gave duration for 180 minutes (2 hours), so my kids won't stuck too long to play with their gadgets.

Wireless > Basic

Ok, now we headed to Wireless section. On the Basic page, I enabled the Access Point and set name the SSID. Left other settings unchanged.

Wireless > Security

On the Security page, I'd set up the WPA Pre Shared Key. Left other settings unchanged.

Done !

OK now let's tried our config either worked or not. First, established a connection to the access point, then open browser on my gadget, try to access random website, a Parental Control login page will appeared :

Conclusion

With a little efforts and do some config to the access point in our home, we can save our children to accessing Internet content that is not suitable with their age, without prohibiting them to use gadgets

How to root Lenovo P780

noreply@blogger.com (Anonymous) — Thu, 15 May 2014 10:22:00 +0000

Here's how to easily root your Lenovo P780 smartphone.

You need to download an app called Framaroot from here (find the newest version)
On your phone, enable app installation from Unknown Sources. Go to Settings > Security > tick on Unknown Sources to allow installation of non-market apps.
Install the Framaroot.apk from your SD card and open the app
It would looks like below :

Choose Boromir
After the exploit is successfully completed, it will prompt for a reboot.
Do reboot the phone.
That’s all, your device will reboot now and your device will be rooted.

There will be an app named SuperSU on your phone, which listed which apps that has been granted root priviledge.

Vivan V06 6000mAh Power Bank review

noreply@blogger.com (Anonymous) — Thu, 15 May 2014 09:17:00 +0000

Last day, i'd received gift, a power bank unit from our partner. Branded as Vivan V06, this unit comes with a nice package.

Product specifications :
Cell type : Samsung 18650
Capacity : 6000mAh
Input : DC 5V, 1 A max
Output : DC 5V, 1 A max
Charging time : 5-6 hours
Cycle life : >= 500 times

Unboxed, this power bank equipped with :

A warranty card
A User Manual
A built-in Micro USB cable
A built-in LED Light
Power Switch
Indicator light
Micro USB input port
USB output port
A USB to Micro USB cable
A USB AC adapter charger
A Nokia DC 2.0 output jack
A Micro USB output jack
A Mini USB output jack
An iPhone 5 output jack
A Samsung Galaxy Tab output jack
A nice brown pouch :-)

Where it excels :
This power bank unit has a big capacity (6000mAh), use trusted Samsung's battery cell, nice design, and has a LED torch-light (double click on button to turn it on), very usable. It also can charges two cellphones at once, and support many varieties of cellphone's charge jack.

Where it falls :
Despite having a large capacity, it only provide small electric charge output as 1 A. Ok it's fine for some smartphone that comes with less than 3000mAh battery. But for some gadget such as tablet or smartphone with 'monster' battery (such as Lenovo P780) which need at least 2 A for charging, I'm sure this powerbank will falls.

MEGADETH World Tour 2014 - Live in Jakarta !

noreply@blogger.com (Anonymous) — Sat, 08 Feb 2014 19:38:00 +0000

One of my favorite metal band, Megadeth will come to Jakarta on this March 5th! Can't wait to watch them! See you there !

[Android] How to hack Flappy Bird score

noreply@blogger.com (Anonymous) — Sat, 08 Feb 2014 19:25:00 +0000

Flappy Bird is become a popular game now. I like this game but it's kinda difficult game for me,... I just don't have much time to play this game. One naughty thing, I wonder if I can hack the score and show it off on my Facebook :-)

The way is simple, make sure your Android has been rooted (please, don't ask me how to root your Android phone), then download the Root Browser from Google's Play Store.

Once the Root Browser has installed, go to /data/data/com.dotgears.flappybird/shared_prefs and find a file named "FlappyBird.xml". Open the file (with RB Text Editor), go to the 4th line, change the score value into whatever you want.

Okay, try to show off the screenshot on your Facebook's wall or Twitter... your friends will be amaze :-)

How to re-install New Smartfren Andromax Tab (NSFAT) 7.0 with Android Jelly Bean 4.1.1 Build 60.5 (Stock ROM)

noreply@blogger.com (Anonymous) — Sat, 08 Feb 2014 18:51:00 +0000

I have a tablet New Smartfren Andromax Tab 7.0 a.k.a Hisense WM7 a.k.a WonderMedia PRIZM 8950 , and tonight the tablet acting weird . At boot time, the display stops at the logo " Smartfren " and not entering the main menu of Android . I have tried to do a hard reset on the device but does not solve the problem .

I 've tried to bring this device to the nearest Smartfren Gallery . They said this device must be delivered to the Smartfren's service center at the Roxy - Central Jakarta , and it would took at least 2 weeks . No way man , I can't wait that long .

Finally , I decided to install this device by myself :-(

WARNING !

Do it at your own risk ! I am not responsible for any damage that may occur
This action will remove your warranty, so think twice !

Preparation :

1 . Prepare a micro SD card, a more than 512mb on size would do.
2. Install WinRAR. It's not mandatory, but it'll help you much.
3 . Make sure you 've your NSFAT 7.0 shows a full battery , or should do the install on the charging condition.4 . Download the NSFAT Stock ROM with the link below :

Part 1 : http://www.mediafire.com/?0ck1to8ik0liol7
Part 2 : http://www.mediafire.com/?r1zw337ctvyj2g7
Part 3 : http://www.mediafire.com/?xka9330nuanix5z
Part 4 : http://www.mediafire.com/?dki4jvk3susf8uv

Note : Those files above wasn't uploaded by me. Do let me know if those links are broken.

UPDATE : March 14th 2014
I've uploaded an alternative link, a whole package (compressed) in my Dropbox (367 MB) : https://www.dropbox.com/s/9pf61jy04y0qu1w/FW-SMARTFREN-WM7-3.25.00_60.5-201303041524-B58-user-JB.7z

Installation :

1. Extract the downloaded file, and then move the contents of the extracted file into the micro SD card :

2 . Insert the micro SD card into an available port on NSFAT, then turn on the NSFAT.
3 . Installation will begin running :

4 . Once the note below appears green , unplug your micro SD card, the device will automatically reboot :

5 . Done ! your NSFAT will be back to normal as usual

# All thanks for the guys at Indonesia's Smartfren Andromax | New Tab 7 Community

UPDATE : I think i've found the culprit !
Yes, I think i've found the culprit! It seems that the Bluetooth is the root cause of the bootloop. I used to reinstall this tablet once a week. But unconsciously, i never use Bluetooth since 2 months ago.. and this tablet never gone bootloop again. Wifi is safe, you can use it all day long. So, try to turn off your Bluetooth, and let's see the result!

My mobile phones list : past to present

noreply@blogger.com (Anonymous) — Mon, 25 Nov 2013 18:09:00 +0000

In the terms of mobile phones ownership, I am a person who isn't too often to change mobile phones (models). Because I only bought a new phone, IF ONLY the older one had broken or had disfunctionality. I always avoid to bought a new phone, only for following the trends or fashion. Well, I just want save my money. Just to memorize them all, here my cell-phones time by time, from past to present :

1. Nokia 3310 (2002)

This is my first phone, Nokia 3310 ! I bought it in second condition for $60. I love this phone, so tough, have a great keyboard for SMS. See its full specs here

2. Nokia 2100 (2003)

This is my second mobile phone, actually i didn't very like this phone, more because it had a girly looks. But at that time, i had to bought a phone, because the previous one has broken. Bought it (new) at $110. This phone was so lightweight, had a soft blue backlit, and had a great polyphonic ringtone maker. Full Specs

3. Siemens M55 (2004)

So Nokia 2100 hadn't fitted my personality, and broken up. So I need a more advanced phone. A phone with internet capabilities, with WAV ringtones, and a colored display. So I choose the Siemens M55, a tough phone, looked macho, advertised as scorpions, display color, Java Games, and of course WAP-enabled! Bought at 2nd-handed market for $140, i very loved this phone. Unfortunately, the keypad went broken, and I had to sold this phone :-(. Full Specs

4. Sony Ericsson (2005 - 2007)

Next, I had bought a Sony Ericsson K700i, a sophisticated phone at that time. A rival to Nokia 6600. With sharp display resolution, crispy speaker, MP3 & MP4 supports, FM radio, Java Games, had a great camera with flash (although its only had VGA resolution), but poor at night. I love its push e-mail, fast GPRS browser, and easy navigations. The worse parts were : the small storage (41MB) and the bad quality port closer at the bottom of the phone. Full Specs

5. O2 XDA II Mini Pocket PC (2008 - 2009)

I given the K700i to my brother-in-law. I need a phone that have a capability to read Ms.Excel spreadsheet, to read a code generator for my company core-apps. So i choose the O2 XDA II mini for $160 (2nd-handed). This is my first touch screen phone (with stylus). Installed with Pocket PC 2003, i installed many Windows Mobile apps and games. The phone was so heavy, poor very poor camera without flash, and i got calibration error on its screen. Later, i upgraded it with Windows Mobile 6, some improvement. I throw this phone because the battery was dropped, and the charger was broken. Full specs

6. Esia Huawei C2801 (2009)

The XDA II mini problems were getting annoyed. I need a phone for my daily activities. Since I ain't got much money, so I decided to bought an Esia Huawei C2801 featured phone. This phone was so cheap ($30, new), bundling and locked with Esia's cell operator. This is my first CDMA phone, it has an awesome battery life, could last till 1,5 weeks on standby mode. The network coverage of Esia were good at Jakarta, but poor outside of it. Well, I just used it for voice call and sms, and this phone had enough for that.

7. Nokia E71 (2009 - 2011)

I liked Nokia, but I never liked Symbian. Somehow, i don't know, why I still put a trust on Nokia E71. This is the most expensive phone I ever bought for entire my life ($399, new). And the result? I were very regretted :-( On the specifications, this phone was awesome. 3G/HSDPA, 3.2MP camera, QWERTY keyboard. But when I used this phone, the Symbian run very slow, the browser was slow as snail, the camera result was great on phone screen, but went unsharpy on PC's screen, poor Ovi Store... anyone still use the Ovi Store?? The WLAN gone sucked, the push email wasn't very good. The battery life was average, the speaker was great. Full specs

8. Flexi ZTE S189 (2010)

I got this phone for free for our IT crews internal communication. This phone was so lightweight, great battery life. But this phone also had a uncomfortable keypad, no vibration, boring ringtone, and Flexi voice quality were so poor. My ears would getting warmer if I used this phone for a long time.

9. Samsung Galaxy Ace S5830 (2011 - 2013)

So I gave the E71 to my wife as her second phone. Now, the Android era! So I choose the Samsung Galaxy Ace S5830 at that day ($225, new). Equipped with Android version 2.2 (Frozen Yoghurt), I very loved this phone, but I hate its 'small' battery. I'd installed many Android apps and games from Google Play. I do not feel much left out, although I still use the outdated Froyo's OS. Full Specs

10. [2014] What's next ?

My Samsung Galaxy Ace, has often give me some errors and slow performances in these days. It's seems to be a signal to me to find a new phone. I still haven't found any phone that i'll bought. I need a powerful smartphone, wide screen, good battery life, sharp camera, and of course the price must be reasonable.

Would you give me some suggestions or recommended some phones to me? I'll be pleased to hear your recommendations. Oh yea, please don't recommend any Blackberry and iPhone to me. Seriously, I won't use BB. I like iPhone, but the price is too high for me. Wasted $600-$900 for a mobile phone seems unreasonable for me (maybe not for you hee...). So I will choose among Android or Windows smartphone.

UPDATE :

10. Lenovo P780 (2014 - present)

At last I put my choice to Lenovo P780 4GB. 5-inch screen, Quad-core MTK procs, 1 GB of RAM, Android Jelly Bean, Dual-SIM (actually i just need one), double camera with flashlight on the back, superb 8MP camera result ( a liitle whitey on grey object, but it's okay), aaaaaandd ... the monster size battery !! With 4000mAh on capacity of battery, this phone could hold for 3 days (light use) or it's about 1.5 days for heavy usage. Much enough for someone like me. No more afraid of low battery. Recommended one!

How to change Google Drive desktop app's language into English

noreply@blogger.com (Adi Riswan) — Sun, 13 Oct 2013 14:41:00 +0000

I have just installed Google Drive desktop application on my computer. Then I checked, it turns out the menu in Indonesian language (according to my settings in the Regional and Language). For some reason, I prefer to use English in the application menu.

Since there's no any option available to change the language in Google Drive, for changing the language on Google Drive desktop application, do following steps :

1. Open the Start Menu, type in the phrase "edit system environment variables" then choose the menu as shown below :

2. On System Properties dialog, choose Advanced tab, then click the Environment Variables... button. On Environment Variables dialog, create a new System Variable, named "LANG" and "en_US" on its value. Just follow the step-by-step as in the image below:

3. Turn off Google Drive desktop application, then restart it.

4. Should Google Drive desktop application menus are in English now.

Google Drive's menu in English

Try it yourself :-)

HP Mini 210-1109TU : How to speed up boot time and fix the slow performance

noreply@blogger.com (Adi Riswan) — Sun, 06 Oct 2013 16:21:00 +0000

HP Mini 201-1109TU

On this weekend , i got an order from Mr. Yul Alfian, which was he asked me to fixed some problems on his netbook, the HP Mini 201-1109TU . He was concerned about the sluggish performance and also the boot time is too slow.

OK, when i turned on this netbook for the first time impression, it does a very slow boot time ( almost 4+ minutes ), and the performance is very disresponsive and too much lag.

This netbook has an Intel Atom N470@1.83GHz processor (hyper-thread) , 1 GB of RAM , 250 GB on HDD and OS Windows 7 Starter. I know, the specifications is less powerfull , but hey .. This is a netbook right? Don't expect too much on it.

As usual , I always avoiding re-install the OS in every troubleshoot i did. In my opinion, that way is less smart . I believe i can boost up this netbook's performance into acceptable speed.

I take the following steps to overcome the problem on the netbook :

1 . First , I immediately uninstalled the Norton Internet Security and Adobe Reader. No offense, but for all this time I am personally more happy with Avira Free Antivirus (download here) and Foxit Reader (download here) as a PDF file's reader . Both of the them are much lighter, especially on low-specs computers. Doing a full virus scan with Avira right after install it is also a good idea .

2 . Perform download and install updates from Windows Update. Also make sure that all the drivers have been installed properly and up to date. Get the HP Mini 210 drivers here

3 . Third , turn off all the effects that have an impact on performance. Go to Control Panel > System > Advanced System Settings , on the Advanced tab select the Performance panel and press the Settings button . Determine the appropriate custom settings in the image below :

Win 7 Performance Options

4 . Next we have to change the Power Plan . Go to Control Panel > Power Options , select the High Performance power plan .

Win 7 Power Plans

5 . Go to Control Panel > Intel ( R ) GMA Driver for Mobile > Display Settings , then press the Power Settings . In the dialog that appears , drag the slider on the option Disable Power Savings.

Intel GMA Driver

6 . Turn On ClearType text. Go to Control Panel > Display > Adjust ClearType text . You can check the checkbox to Turn on the ClearType . You will do some calibrations here :

7 . The HP Mini 210 features HP QuickWeb. So for the user does not have to wait for long boot time , set the computer to boot into the Windows OS if inactive for 5 seconds . Go to Control Panel > HP QuickWeb Configuration Tool , do set it there .

HP QuickWeb

8 . Install HijackThis from TrendSecure (link) . Oh how I love HijackThis . With this tool we can remove the startup entry, malware, backdoors, trojans, etc . Well, I'm not going to explain more about HijackThis , you gotta explore it yourself. :-)

HijackThis

9 . Dispose of unnecessary applications running on your computer and waste services that are not necessary. I know, this steps can be a painful step, such as MsConfig, Registry Editor , blah .. blah ... But my recommendation, just go install Baidu PC Faster (download here). This application is very useful and well smart in diagnosing problems on your computer, while it also offering a solution or fixes. A very very recommended tool.

Baidu PC Faster

10 . Last but not least, defragment the hard drive! . I use Deffragler (link)

And now let's see the result after reboot. It was shocking !
Boot time decreased from 4+ minutes to just 55 seconds !
And the overall performance also feels much more responsive . Although sometimes there is still a little lag especially when we do multitasking tasks.

My advice? I strongly suggest to upgrade this netbook onto 2 GB of RAM for a smooth performance.

And here the following comparison of Task Manager , before tuning and after tuning ( idle condition ) :

Hopefully this post can help you whom with same performance issues on HP Mini 210-1109TU . Basically the above tricks can also be implemented on other notebook's brands .

At least we do not have to reinstall the OS, right ? :-)

How to Enabling the openSSL PHP extension in XAMPP

noreply@blogger.com (Adi Riswan) — Sun, 22 Sep 2013 08:58:00 +0000

I assumed you're installing your copy of XAMPP in c:\xampp

First, do make sure you have the library file named 'php_openssl.dll' in your c:\xampp\php\ext directory or just paste this script below into command line and run it :

if exist c:\xampp\php\ext\php_openssl.dll (echo YES) else (echo NO)

Next, go open the 'c:\xampp\php\php.ini' file and remove the semicolon to:

;extension=php_openssl.dll

If you don't have that line, just write that line down (without semicolon of course), in the "Dynamic Extensions" section. Don't forget to save it.

Last, restart the Apache service through XAMPP panel, and you're done :-)

How to clear memory cache & swap space on your Linux system

noreply@blogger.com (Adi Riswan) — Wed, 18 Sep 2013 10:35:00 +0000

If you think your Linux system has decreased performance,you can try some workarounds such clear the memory cache and clear the swap space.

To clear the filesystem's memory cache, run the following commands:


[root@development ~]# sync
[root@development ~]# echo 3 > /proc/sys/vm/drop_caches
[root@development ~]# echo 0 > /proc/sys/vm/drop_caches
[root@development ~]# sync

To clear the swap space, run the following command:

[root@development ~]# swapoff -a && swapon -a

For daily automation, paste the above two commands in your cron jobs, such as the following:

0 1 * * * /sbin/swapoff -a && /sbin/swapon -a
0 0 * * * /bin/sync; echo 3 > /proc/sys/vm/drop_caches; echo 0 > /proc/sys/vm/drop_caches; /bin/sync

Note : i use CentOS 6.4 with root privilege

Hope these tricks helps

METALLICA is coming to Jakarta !! And I'm gonna watch them !!

noreply@blogger.com (Adi Riswan) — Thu, 22 Aug 2013 18:07:00 +0000

I'm so excited :-) My favorite metal band, Metallica is finally coming to Jakarta !! Formed in the early 80s, the bandl has released nine studio albums & four live albums. The band has won nine Grammy Awards and has had five consecutive albums debut at number one on the Billboard 200.

Metallica Asia Tour 2013 will be held in Jakarta at Gelora Bung Karno, on August 25th 2013. With a stadium capacity, this concert will be the biggest in South East Asia!

Ok guys!... see you there !!

Playing music on your Android

noreply@blogger.com (Adi Riswan) — Thu, 27 Jun 2013 16:03:00 +0000

Android operating system allows us to explore the possibility of doing about anything, thanks to Google Play for the support of many applications on it (most of them are free).

One thing that we can do with Android is the possibility to play music on it, whether playing it alone or on a collaborate like a band playing.

So, what are applications that you need for the band play with your friends? Here it is:

1. Real Drums:
With this application we can play drums with your fingers. Drums available sets are complete except for the unavailability of cow bell. Also, it can record your drums playing.

2. My Piano:
Limited to 18 keys, we can play simple piano on My Piano. This application can do the recording and has 3 effects.

3. Real Bass:
Has 18 frets and 5 strings, can do the recording on bass, and the bass has 5 modes (Acoustic, Electric Fingered, Picked Electric, Electric Slapper, and Synth). You probably need a headphone or loudspeaker if you wanna hear the lowest tones.

4. Robotic Guitarist Free
This application has a complete customization, such as chord presets, metronome, tuner, guitar lab, and more. Unfortunately there is no facility to record the guitar's play. Very good for rhythm guitar but not for solos / melody.

5. Ethereal Dialpad
This is the expressive touch synthesizer. Just tap and move your finger on the screen and you can make beautiful music, even a baby can do it!

Do you have another Android apps to play music?. Feel free to share here :-)

Krisbow Alarm Padlock K108C Review - Padlock with Built-In Alarm

noreply@blogger.com (Adi Riswan) — Mon, 10 Jun 2013 05:44:00 +0000

To provide more security to my Bajaj Pulsar 200, I bought a padlock at Ace Hardware. I bought Krisbow Alarm Padlock K108C for Rp.98.600 (about +- $10). This padlock is smart tool that integrates with padlock & motion sensor alarm. It will sound if it moved. Great isn't it?

Krisbow Alarm Padlock K108C

Some advantages of this padlock are:

Water resistant, anti-corrosion, and weather-proof changes.
High security standards (USA and CE (Europe) standard quality)
Vibrating Sensor & alarm 110db
Can be used with or without alarm.
Have an uncommon keys + keyhole so it makes more difficult for a thief to hack it.

This padlock comes with 3 pieces of keys, and 12 pieces of LR1130 button batteries. (6 pieces batteries is mounted in the padlock, and 6 pieces batteries as backups).

Key Position

Ok now, how to use it? What I found was, the instructions behind the package is not in accordance with the padlock that I have. Such instruction is given (maybe) to the type of K108A :-(

So I had to find myself how to use this padlock, and here's how :

The use the padlock with alarm:

Use the key to open the padlock.
To lock, insert the shackle into the lock-hole, the position of the key is still attached to the padlock body, in the UNLOCK position.
When shackle got entered, It will sound a beep, indicating that the alarm has been activated.
Turn the key lock to the LOCK position and pull off the keys.

The use the padlock without alarm:

Use the key to open the padlock.
To lock, insert the shackle into the lock-hole with the key positions is ready to be unplugged. It means that right after when the shackle inserted into the hole, you should immediately turn the key to LOCK position and immediately pull off the key.
If you do it right, it will not beep, and the alarm is off.

How to replace the batteries:

Use the key to open the padlock.
Use a [+] screwdriver to open a pair of screw as you can see in the picture below :
Once opened, replace the battery with new 6 pieces of button battery and reattach the screws.

Screws Position

Padlock unscrewed & batteries replacement

Showtime!
Here I demonstrate the usage of alarm padlock :

[VIDEO COMING SOON]

How to build a virtual web server and enable access from external network (Windows 8, CentOS 6, VMware Workstation)

noreply@blogger.com (Adi Riswan) — Thu, 09 May 2013 12:44:00 +0000

I am faced with a task where I have to build a development webserver on a notebook, spesifically a Lenovo ThinkPad Twist (Intel Core i7, 8GB RAM, Windows 8 64-bit).
I would not use werbserver package such as XAMPP werbserver, PHPTriad, etc, to avoid incompatibility issues at the time of deployment later.
It means, I must build a pure web server environment, and for that I would use CentOS operating system.

Since the ThinkPad Twist already came with an original Windows 8, so I'm not going to use a dual-boot approach. The only way is to install CentOS virtual guest host on Windows 8 with VMware Workstation.

Concern that must be achieved are:

Host OS is Windows 8 64-bit
Guest OS is Linux CentOS 6.4 Final
Apache web server running on Guest OS
MySQL database server running on Guest OS
The web server on Guest OS must be accessible from the Host OS
The web server on Guest OS must also be accessible from the external network, for colaborative development needs. (Allows access to SSH, HTTP, and MySQL to Guest webserver)

I will explain how to make it, step by step:

Devices :

Lenovo ThinkPad Twist (Intel Core i7, 8GB RAM, Windows 8 64-bit) as the host, also installed VMWare Workstation 9.0 with 64-bit CentOS 6.4 as a guest OS that will act as a webserver. Let assume the IP address for this notebook is 10.2.2.213
Lenovo ThinkPad X100e (AMD Athlon Neo MV-40, 2GB of RAM, Windows 7 64-bit), act as the client computer that needs access to webserver. The IP address is 10.2.2.214

Installation:

I'm not going to explain how to install CentOS guest OS, I assume you've understand how to install a guest OS in VMWare Workstation. Maybe, if there is some free time, I will write it in a separate article.

Once the OS has been installed in VMWare Centos, it is advisable to install VMWare Tools.
Next step, is to install the necessary packages:

Apache2 Webserver:

yum install httpd
chkconfig - levels 235 httpd on
/etc/init.d/httpd start

MySQL database server:

yum install mysql-server mysql
chkconfig - levels 235 mysqld on
/etc/init.d/mysqld start

PHP5:

yum install php
/etc/init.d/httpd restart

MySQL Support in PHP5:

yum install php-mysql php-gd php-imap php-ldap php-mbstring php-odbc php-pear php-xml php-xmlrpc
/etc/init.d/httpd restart

Enable SSH daemon:

chkconfig - levels 235 sshd on
service sshd start

Let's make sure everything is going well:

[root@localhost ~]# service httpd status; service mysqld status; service sshd status
httpd (pid 2490) is running ...
mysqld (pid 2355) is running ...
openssh-daemon (pid 3760) is running ...

Then, try to direct your browser to http://localhost

Apache2 Test Page

NAT Settings:

OK, next we will configure the NAT (Network Address Translation) in VMWare Workstation.
First, give a static IP on the guest OS. In this case, I give the IP address with 192.168.222.128. Please write down the IP somewhere, we will need it later.

On VMware, choose Edit > Virtual Network Editor menu. In the dialog that appears, select VMnet8 adapter with external NAT connection, then press the NAT Settings button.

On NAT Settings, we will do some port forwarding. The principle, if there is a request to port XXX on the host OS, it will be forwarded (forwarding) to YYY ports in the guest OS.

We will forward some ports as follows:

Host IP	Port	Guest IP	Port
127.0.0.1	8888	192.168.222.128	80
127.0.0.1	3333	192.168.222.128	3306
127.0.0.1	2222	192.168.222.128	22

The final result will be like this:

Now back to the host OS (Windows 8), I open the browser, navigate to http://127.0.0.1:8888, and hooplaa... it works !

So how to access the webserver from external network? Simple, just point your browser to the IP address of the host computer and adding the port number that we've specified above. For example htpp://10.2.2.213:8888

For SSH access, use the 10.2.2.213 IP address on port 2222
For accessing MySQL Databases remotely, use 10.2.2.213 IP address on port 3333

OK guys, i hope this article will helps :-)
drop me ur comment

CentOS : yum install problems - [Errno 14] Could not open / read file

noreply@blogger.com (Adi Riswan) — Sun, 05 May 2013 11:48:00 +0000

Today I've just finished installing CentOS guest in VirtualBox for development server needs. As usual, the first thing I did was to install my favorite file editor / commander , the Midnight Commander (mc). But a strange thing happened when I tried to install mc:


[root@localhost ~]# yum install mc
Loaded plugins: fastestmirror, refresh-PackageKit, security
Loading mirror speeds from cached hostfile
 * Base: ossm.utm.my
 * C6-media:
 * Centosplus: ossm.utm.my
 * Extras: ossm.utm.my
 * Updates: ossm.utm.myfile :///media/CentOS/repodata/repomd.xml: 
[Errno 14] Could not open / read file :///media/CentOS/repodata/repomd.xml
Trying other mirror.file :///media/cdrecorder/repodata/repomd.xml: 
[Errno 14] Could not open / read file :///media/cdrecorder/repodata/repomd.xml
Trying other mirror.file :///media/cdrom/repodata/repomd.xml: 
[Errno 14] Could not open / read file :///media/cdrom/repodata/repomd.xml
Trying other mirror.Error: Can not retrieve repository metadata (repomd.xml) for repository: c6-media. 
Please verify its path and try again

After searching for the cause, I can solved this problem quite easy. First, edit this file :


[root@localhost ~]# vi /etc/yum.repos.d/CentOS-Media.repo

Find a line labelled "enabled=1", then change its value into "enabled=0" (without quotes). Save the file, and try to repeat the installation.


[root@localhost ~]# yum install mc
Loaded plugins: fastestmirror, refresh-PackageKit, security
Loading mirror speeds from cached hostfile
 * Base: ossm.utm.my
 * Centosplus: ossm.utm.my
 * Extras: ossm.utm.my
 * Updates: ossm.utm.my
Setting up Install Process
Resolving Dependencies-> Running transaction check---> Package mc.x86_64 1:4.7.0.2-3. El6 will be installed
-> Finished Dependency Resolution
Dependencies Resolved================================================== 
Package Arch Version Repository Size===================================
Installing:
 mc x86_64 1:4.7.0.2-3. el6 base 1.6 M
Transaction Summary
=======================================================================
Install 1 Package (s)Total download size: 1.6 M
Installed size: 5.4 M
Is this ok [y / N]: y

Downloading Packages:mc-4.7.0.2-3.el6.x86_64.rpm | 1.6 MB 00:42
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing: 1: mc-4.7.0.2-3.el6.x86_64 1/1
  Verifying: 1: mc-4.7.0.2-3.el6.x86_64 1/1Installed:
  mc.x86_64 1:4.7.0.2-3. el6
Complete!
[root@localhost ~]#

Huawei Mobile Partner for Windows 8

noreply@blogger.com (Adi Riswan) — Sat, 04 May 2013 02:21:00 +0000

Huawei - Windows 8

The first problem I've experienced when trying Windows 8 for the first time is when I try to stick my HSDPA USB modem, Huawei E160E into my notebook and Windows 8 does not recognize it at all.

The problem is because the default driver inside the modem is not compatible with Windows 8. The solution is to upgrade the Mobile Partner's software with the latest version (currently version 23.009.09.00.983 UTPs). You can download it here

Done! My Huawei E160E now is recognized well by Windows 8!
This driver also compatible with any types of Huawei's modems.

Hopefully this can help you whom experiencing similar problems

Proses atau hasil ?

noreply@blogger.com (Adi Riswan) — Thu, 14 Feb 2013 15:29:00 +0000

selama orientasinya adalah 'hasil', maka selama itulah sebuah 'proses' tidak pernah mendapat perhatian. ketika sebuah 'proses' telah terhenti, maka timbullah ketergantungan pada 'hasil' orang lain untuk keberlangsungan hidup. ketika ketergantungan pada 'hasil' orang lain sudah demikian parah, yang ada hanyalah saling menyalahkan kenapa tidak melakukan proses, kenapa tidak memberikan hasil, kenapa tidak memberi perhatian kepada proses, dsb.

CentOS 6 : Problem with FTP login - 500 OOPS cannot change directory

noreply@blogger.com (Adi Riswan) — Sat, 05 Jan 2013 02:09:00 +0000

Yesterday I get a problem when I want to make an FTP connection to one of our web server (operating with CentOS 6). It's a bit strange, because usually it works normally.

The problem described as below (the IP address below is only an example, for security reasons):

[root@optiflex ~]# ftp 10.10.10.10
Connected to 10.10.10.10.
220 (vsFTPd 2.2.2)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (10.10.10.10:root): golduser
331 Please specify the password.
Password:
500 OOPS: cannot change directory:/home/golduser
Login failed.

As we can see above, the FTP login failures occur because FTP can not change directory to the user's home directory (in this case it is /home/golduser).

To fix this problem, then here's how i done it. First, I do log on to the web server through an SSH connection with user 'root'.

Once the login is successful, then I need to see the booleans value of SELinux policy, filtering on whom containing the word 'ftp':

[root@goldsrv ~]# getsebool -a | grep ftp
allow_ftpd_anon_write --> off
allow_ftpd_full_access --> off
allow_ftpd_use_cifs --> off
allow_ftpd_use_nfs --> off
ftp_home_dir --> off
ftpd_connect_db --> off
httpd_enable_ftp_server --> off
sftpd_anon_write --> off
sftpd_enable_homedirs --> off
sftpd_full_access --> off
sftpd_write_ssh_home --> off
tftp_anon_write --> off

As we can see above, the ftp_home_dir boolean is set to off, that's preventing the FTP daemon (vsftpd) from reading and writing to files in user home directories.

To change the boolean value to on, perform the following steps (the '-P' parameter means permanent):

[root@goldsrv ~]# setsebool -P ftp_home_dir on

Please check back if ftp_home_dir values have changed:

[root@goldsrv ~]# getsebool -a | grep ftp
allow_ftpd_anon_write --> off
allow_ftpd_full_access --> off
allow_ftpd_use_cifs --> off
allow_ftpd_use_nfs --> off
ftp_home_dir --> on
ftpd_connect_db --> off
httpd_enable_ftp_server --> off
sftpd_anon_write --> off
sftpd_enable_homedirs --> off
sftpd_full_access --> off
sftpd_write_ssh_home --> off
tftp_anon_write --> off

Aaah, the ftp_home_dir already set to on :-) After doing the steps above, I can log into my web server with FTP connection without any problems. Hope this article helps those of you who encountered similar problems.

Reference : RedHat customer portal

Exporting HTML table into CSV file

noreply@blogger.com (Adi Riswan) — Thu, 06 Dec 2012 08:31:00 +0000

I work as a team member in a web application developer at my company. Often, I receive requests from the business users or (sometimes) auditors which asks me to generate some data (usually in CSV format) from the production database. Do not ask about the ACL or Picalo, they are not familiar with it :-(

In fact, actually, those data which they needed already have provided in a report on the (web) application, but hey,... they need raw data for further processing, for example in spreadsheet, and that's fine for them as business owners.

To reduce their dependence on programmers just to generate the data, as well as programmers reduced access to the production database (you know, it's a bad bad idea), we can use a Mozilla Firefox add-ons named ExportToCSV created by Souvik Chatterjee. This is a simple extension for exporting HTML table data as a CSV file

INSTALLATION :

Just go to this page, click the 'Add to Firefox' button, follow the instruction, you'll need to restart your Firefox.
Next, select the menu Tools> Export to CSV> Settings
Give a tick on Include Texts from all nodes, and check on Ignore Line Breaks

HOW TO EXPORT :

Simple, just right click on any HTML table, on the context menu choose Export Data as CSV.
On the next dialog, select the location where you will save the CSV file. Anyway don't forget to give the extension. 'CSV' end of the file name (I think Mr.Souvik miss about this).
Click Save button

PROBLEMS WITH CSV (?) :
CSV stands for Comma Separated Values. In short, CSV is actually plain text file that contains values separated by commas.

See the following picture, when i opened the CSV file in text editor :

Well, if the CSV file is opened with spreadsheet applications (eg Microsoft Excel), then they may look a little messed up as follows:

SO HOW TO DEAL WITH IT? :

Simple. We can use the Text to Columns feature from Excel itself.
Highlight the cells that are in the first column.

Select the Data tab, then press the Text to Columns button.
The dialog wizard will appear;
In Step 1 gave tick on Delimited option, then press Next.

At Step 2, Set Delimiter to Comma, and Text Qualifier as ", then click Finish button

Hoopla! Your data will be neatly separated between cells. Furthermore, the data that data can be processed through spreadsheet or Save as into Excel format.

Have a try. Not all reports must be requested from the programmer right? Anyway, programmers are human too, :-)

Note, in this test I use :

Mozilla Firefox 14.0.1
ExportToCSV 1.2.b1
Microsoft Excel 2007

Programmer

noreply@blogger.com (Adi Riswan) — Sat, 03 Nov 2012 14:32:00 +0000

Got this from 9gag :-)

How to install SHC on your Linux system

noreply@blogger.com (Adi Riswan) — Sat, 03 Nov 2012 07:18:00 +0000

SHC stands for Generic shell script compiler. Created by Francisco Javier Rosales García, shc creates a stripped binary executable version of the script specified with -f on the command line. The binary version will get a .x extension appended and will usually be a bit larger in size than the original ascii code. Generated C source code is saved in a file with the extension .x.c .

In a simple word, SHC compile your Bash script into binary so no one can see your code.

And here's step by step how to install SHC (I use Ubuntu 12.04 LTS) :

1. Download the latest version of SHC at here

2. Put the package at your home (~) directory

3. Extract the tarball :

adee@thinkpad:~$ tar -xzvf shc-3.8.9.tgz 
shc-3.8.9/CHANGES
shc-3.8.9/Copying
shc-3.8.9/match
shc-3.8.9/pru.sh
shc-3.8.9/shc-3.8.9.c
shc-3.8.9/shc.1
shc-3.8.9/shc.README
shc-3.8.9/shc.html
shc-3.8.9/test.bash
shc-3.8.9/test.csh
shc-3.8.9/test.ksh
shc-3.8.9/makefile

4. Step inside into the shc folder and do the 'make' command :

adee@thinkpad:~$ cd shc-3.8.9/
adee@thinkpad:~/shc-3.8.9$ make
make: *** No rule to make target `shc.c', needed by `shc'.  Stop.

5. As you see above, there's an error about missing file named 'shc.c' Actually the 'shc.c' is already there, we just have to rename / duplicate it into the right name :

adee@thinkpad:~/shc-3.8.9$ cp shc-3.8.9.c shc.c
adee@thinkpad:~/shc-3.8.9$ make
cc -Wall  shc.c -o shc
*** �Do you want to probe shc with a test script?
*** Please try... make test

6. Ok, then we shall continue to 'make install' command (need sudo):

adee@thinkpad:~/shc-3.8.9$ sudo make install
*** Installing shc and shc.1 on /usr/local
*** �Do you want to continue? y
install -c -s shc /usr/local/bin/
install -c -m 644 shc.1 /usr/local/man/man1/
install: target `/usr/local/man/man1/' is not a directory: No such file or directory
make: *** [install] Error

7. Something sucks occurs again. It's looks like there's no such directory named '/usr/local/man/man1/'. So what should we do? Simple, just create that folder and repeat again the make install command. It should works now!

adee@thinkpad:~/shc-3.8.9$ sudo mkdir /usr/local/man/man1
adee@thinkpad:~/shc-3.8.9$ sudo make install
*** Installing shc and shc.1 on /usr/local
*** �Do you want to continue? y
install -c -s shc /usr/local/bin/
install -c -m 644 shc.1 /usr/local/man/man1/

8. Next, we have to move the shc binary file into /bin and give it the excecutable bit :

adee@thinkpad:~/shc-3.8.9$ sudo cp shc /bin/shc
adee@thinkpad:~/shc-3.8.9$ sudo chmod +x /bin/shc

9. OK Done! SHC is installed into your system. To test it, try type 'shc' at the terminal, and it should looks like this :

adee@thinkpad:~/shc-3.8.9$ shc 
shc Usage: shc [-e date] [-m addr] [-i iopt] [-x cmnd] [-l lopt] [-rvDTCAh] -f script

OK on the next few days, i will write an article about the usage of SHC. So stay tuned :-)

How to shows subtitle (*.srt) in Windows 7 - Windows Media Player 12

noreply@blogger.com (Adi Riswan) — Sat, 03 Nov 2012 04:09:00 +0000

By default, Windows 7 Windows Media Player 12 (WMP12) does not support *. SRT files for movie ssubtitles. To shows subtitle on WMP12, we can use Local Subtitles for WMP plug-in from codepack.co. This Plug-In will allow you to play movies with subtitles in Windows 7 Media Player 12

And here's the steps :

Prepare your video files
Download subtitle (*. SRT) in accordance with the title of the movies and languages you want. (Subscene is a recommended site for subtitle's searching).
Rename the SRT file name with the same name of your movie file (excluding the extension).

For example:
- myvideodvdrip.mp4
- myvideodvdrip.srt

Download and install the Local Subtitles for WMP plugin from this link : http://codecpack.co/download/Local-Subtitles-for-WMP.html
Open a the video file at first with WMP12.
Switch to library mode
Load subtitle in a way as shown below:

The movie will be played. Make sure the subtitle is loaded by right clicking on the movie screen > Lyrics, captions and subtitles> On, if available
Done. Your WMP12 will shows the subtile below the the screen.

Have a try ! :-)

Extends your notebook battery's life with Aerofoil

noreply@blogger.com (Adi Riswan) — Sat, 27 Oct 2012 06:19:00 +0000

Aerofoil is an application that can help you to enhance your notebook battery life by disabling Aero and some configurations that sucking your battery power. This application is very useful for those of you who use notebooks and away from the power source (wall outlet) and also for those of you who have a notebook with a small capacity battery power. Besides the way to turn off Aero Glass, Aerofoil also disable some setting that has potential to suck up your battery power.

If you stick to wall outlet, Aerofoil will automatically set your power plan to "High Performance" which is included:

Enable Aero Glass
Enable Sound
Enable Sidebar

Meanwhile, if you are runs on battery, Aerofoil will turn your power plan to "Power Saver" which is included:

Disable Aero Glass
Disable Sound (mute)
Disable Sidebar

This application is open-source, free, and, oh... it only runs on Windows Vista and 7, both 32-bit and 64-bit. This is a must have tiny app for your notebook, go get it at http://silentdevelopment.blogspot.com/2010/05/aerofoil-151-released.html

PHP : Switch statement with multiple cases

noreply@blogger.com (Adi Riswan) — Fri, 26 Oct 2012 18:06:00 +0000

In PHP programming, sometimes we encounter in a conditions which we have to make a switch statement with multiple case values. Previously I was very confused how to make it, but after a bit of experimenting and googling anywhere, I finally find the way. See the code below for more details:


<?

# PHP    : switch with multiple case
# Author : adi@riswan.com

echo "| X | Y | ";
echo "--------- ";

for ($x=1;$x<=5;$x++)
 {
  switch ($x) 
  {
   case 1 :
   case 4 : $y = 'A';
      break;
   case 2 :
   case 5 : $y = 'B';
      break;
   case 3 : $y = 'C';
      break;
  }
 echo "| $x | $y | ";
 }
?>

and the result will be :
| X | Y |
---------
| 1 | A |
| 2 | B |
| 3 | C |
| 4 | A |
| 5 | B |