Forum is Under Construction !!

If you love Nokia hardware but wish for a better operating system, consider what some enthusiastic developers have done.As part of a project called NITDroid, the developers have created a compatible version of the Android operating system for Nokia’s internet tablets. The result is a device that has the body of Nokia and the brains of Android.

“Nokia’s hardware is fantastic but their software is suboptimal, slow, buggy and not always the best user experience,” says Terrence Eden, a U.K.-based mobile consultant who installed Android 1.6 “Donut” on his Nokia N810. “Android is a much better software environment for Nokia hardware than what Nokia provides.”

Eden’s Nokia-Android hybrid works well except for access to Google Market and apps, he says.

Meanwhile developers have created a stable version of Android 2.2 Froyo for the Nokia N900, which ships with Nokia’s Maemo operating system. They have been able to get calls, data and Google apps going on the hacked device. The only missing feature is camera support.

This is not the first time a phone has been hacked to run an entirely different kind of operating system. Eager to experience Android’s features, some intrepid smartphone users hacked their Windows Mobile phones to run Android.

With Android for Nokia phones, the NITdroid project has had varying degrees of success. So far, they have attempted to port Android for Nokia’s tablet range of devices — which means the Nokia N770, N800, N810 and N900.

“On the N810, everything is pretty much functional. It isn’t a phone so there’s no call functionality to deal with,” says Eden.

But with the N900, users have found themselves unable to use the Android-powered device to make calls on a 3G network or change the screen brightness.

Tweaking the Nokia phones to change its operating system to Android isn’t for everyone, says Eden.

“It’s not something anyone off the street can do,” he says. “It’s a bit like installing Linux on the PC that you bought off Best Buy.”

But for those who are willing to take the risk, Eden has written a step-by-step guide on his blog for getting Android on the N810. The NITDroid wiki also has an installation guide for other Nokia phones.

Android gingerbread 2.3.1 on Nokia N900 step by step installation guide

A step-by-step Android installation guide for Nokia N900 Users
Things you will Need:
1: Your nokia n900
2: Any Micro SD card (i used a 2GB)
---------------------
For this installation you need to Enable all repositories from App Manager (you need to input those information manually and be precise):
The configuration below is for N900 up to firmware PR 1.1.1:
Application manager --> Application catalogs --> New
Catalog name: maemo.org
Web address: http://repository.maemo.org/extras/
Distribution: fremantle
Components: free non-free
----------------------
The configuration below is for N900 for firmware PR 1.2:
Application manager --> Application catalogs --> New
Catalog name: maemo.org
Web address: http://repository.maemo.org/extras/
Distribution: fremantle-1.2
Components: free non-free
-----------------------
The configuration below is for N900 for firmware PR 1.3:
Application manager --> Application catalogs --> New
Catalog name: maemo.org
Web address: http://repository.maemo.org/extras/
Distribution: fremantle-1.3
Components: free non-free
------------------------
Second step :Install rootsh from app manager or from this site : http://maemo.org/downloads/product/Maemo5/rootsh/
-------------------------
Third step we will use X-terminal (here get your fingers ready :P )
basic commands used : root( to give root access) ls (list files in a folder or directory) mkdir (create directory) rmdir (removes directory this command is specially used if you Used any NITDroid before and created AND directory in the root of the phone) Ok lets get started Type in X-terminal :

root

apt-get update (to download packages needed make sure you are connected to internet )

apt-get install nitdroid-installer

y

y (if its asks again)

-------------------------------------
After this you have to download two files on your PC:
1st file : http://downloads.nitdroid.com/e-yes/gingerbread.tar.bz2
2nd file: http://downloads.nitdroid.com/nitins...nal1_armel.deb
-------------------------------------
Once you downloaded those files make sure you copy them to the root phone memory ( once you connect it to the pc tap the mass storage mode and just copy them to the phone memory for example lets say its H: just open H: and copy it there)or for other users they can copy it anywhere as long as they put the path correctly
--------------------------------------
After you have successfully copied the files open the x-terminal and type

NOTE:be precise and take care for space)

root

cd /home/user/MyDocs (cd(space)/home/user/MyDocs)

bzip2 -d gingerbread.tar.bz2 (bzip2(space)-d(space)gingerbread.tar.bz2) WAIT

cd /home (cd(space)/home)

mkdir /and (mkdir(space)/and)

cd / (cd(space)/)

mount /home /and (mount(space)/home(space)/and)

cd /and (cd(space/and)

tar xvf /home/user/MyDocs/gingerbread.tar (tar(space)xvf(space)/home.......or the path you put the file in

dpkg -i /home/user/MyDocs/nitdroid-kernel-2.6.28-06_final1_armel.deb (write this one like this as it here with all spaces / _ . -
-----------------------------------------------------------
Now You have to install two more updates to Patch some Bugs in the OS.
First Is Codec Update:http://downloads.nitdroid.com/e-yes/...pdate1.tar.bz2
second VOIP update :http://downloads.nitdroid.com/e-yes/...pdate2.tar.bz2
copy both files in directory like the before 2 files
------------------------------------------------------------
After downloading both the files Again open X-terminal and type

root

mount /home /and

cd /home/user/MyDocs

bzip2 -d gingerbread_update1.tar.bz2

cd /and

tar xvf /home/user/MyDocs/gingerbread_update2.tar

Make sure you install the updates correctly.
-------------------------------------------------
After the updates are installed you are done Installing Android Gingerbread On your Nokia n900 . just slide open your keyboard and reboot your phone. you will get a Dual Boot Option screen Select Nitdroid And Unleash the Gingerbread Power.
For more visit Nitdroids official wiki

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Easily Root your Android Tablet with One Click

Here's an one click root tool for Android, UniversalAndRoot:
A new and simple root method..."UniversalAndroot" - Android @ MoDaCo

Developed by some Taiwanese developers on the root exploit released on xda. Comments on the blog are generally positive.

It is also opensource (shakalaca's UniversalAndroot at master - GitHub), which is scary. But that's a story for another day.

Just install the APK and follow the instructions: http://bit.ly/aa4jxJ

May take more than one try

Another alternative Superoneclick:
http://forum.xda-developers.com/showthread.php?t=803682

Also Z4Root:
http://forum.xda-developers.com/showthread.php?t=833953

Multiupload DL: http://www.multiupload.com/UWMLM1IU60

Qt SDK: What developers are saying

The world's leading mobile developers are working with Qt SDK. Find out about their expereinces of working with Qt SDK, the Qt framework, Qt Quick, Nokia Store, and Nokia, in these videos ...

The Qt SDK is the easy-to-install and use development environment for creating outstanding Qt apps for Symbian phones and the Nokia N9. In this tutorial you'll find out how to download, install, and use the Qt SDK 1.2.1 to create and deploy your apps.

Download and installation

To download the latest Qt SDK, go to the Qt SDK download page. It contains more details about the SDK including the system requirements.
Each installer is available in both offline and online versions. The offline version includes the entire Qt SDK, while the online version downloads the software during the installation process. If you encounter problems with the online installer on a corporate network, use the offline installer instead.

Figure 1: The SDK's details page provides offline and online installers for Windows, Linux, and Mac OS X.

Once you have downloaded your choice of installer run it in the usual way to install it on your computer.

Figure 2: The setup wizard opens; this may take a while on slower PCs.

Figure 3: Select the installation directory.

Figure 4: Accept the license agreement.

Figure 5: Select a Start Menu location in which to place the SDK's shortcuts.

Figure 6: The download and installation progress of each component can be monitored.
Once the installation is complete, the setup wizard will prompt you to launch Qt Creator and the Qt SDK. The SDK includes Symbian and Nokia N9 development tutorials that describe how to configure the debugging and deployment environment for each target. You won't need them at this point; you can find them later in the <QtSDK_install_path>\readme directory.

Figure 7: Once installation is complete, click Finish to launch the Qt Creator IDE.

Figure 8: Qt Creator having been successfully launched.
At this point, no further configuration is needed, because the Qt SDK contains everything you need.
Next, create a new project with Qt Creator ›

Expired certificate
Unable to install costrained by the certificate
Etc, You can get rid of it by hacking your CP (cell phone)

This's d day we hav been waitin for.As we all kno dat Hackin of cp is not an eazy task now dat OPDA has stoped issuein Cert. & Key d problm of Hackin became complicatd. I don't need 2 Xplain what is Hackin furtherly, & d benefitz

But Any
SYMBIAN
without Hackin is Useless.

Without wastin much of our time. Dismethod has been d Fastest & d Simplest method of Hackin a
Symbian OS phonez. It has been personally tested by me on d Followin fonez: C5, E5,E71,E63,C6,E72,E75. It took me 3minutes 2 Hack C5.

Let's Go!!!

DOWNLOAD DIS CLICK HERE

After Downldin:

1-->>Use ur X-plore to Unpack Quarantine archieve to C\\drive, u should get
C\\tmquarantine \path.

2-->>Install Antivirus
3-->>Launch Antivirus, it might prompt u 2 Restart ur phone or keep usin it, jux press YES (Restart ur Phone)

4-->>Goto ur Antivirus again>>press Option>>scroll down 2 Quarantine List.
5-->>Click Option again, then choose RESTORE at all files i.e (Restore all d 3 or 4 files)

6-->>Close antivirus & Delete it from ur phone
7-->>Install RomPatcher+
8-->>Launch RomPatcher+ & Apply Patches.
9-->>Now Etract d suitable Installserver.exe from d Zip Archieve & PASTE it in path
C \\ sys \ bin

NOTE: pls, read d installserver.text B4 selectin urs Or make sure u kno ur ''phone OS''

10-->>Goto ur RomPatcher again>>click Option & Apply:

---Open4all for access to all folders
---Installserver for Installin any Unsigned App. (if Red crossed, navigate to installserverRP+
---Add to Auto at patches

11-->>After all dis, Switch off ur phone & On it back.

Congrat. Ur phone is Hacked successfully.

U're free 2 Request 4 anytin concernin dis Tutorial.

ANDROID SOFTWARE & HACKING GENERAL

ANDROID SOFTWARE DEVELOPMENT

ANDROID THEMES, MODS, & ICONS

ANDROID APPS & GAMES

MISC | REF | GUIDES ETC

[Ultimate Guide][Part 6-2-released][4/09/2011]Android App Development - From Scratch by michael.the.don
[GUIDE] Star A1000, A2000, A3000 & A5000 by byteshertz
[TUT]Decompiling an apk,converting dex to jar(NEWBIE FRIENDLY) by Prawesome
[STOCK ROMS] N7000 All stock ROMs + install guide + Root guide All at One place by dr.ketan
[GUIDE] [HOW TO]Install a GNU/Linux and tools to make Custom ROMs by danieldmm
[GUIDE] Back up your data before moving to a new rom by s.d.oconnor
[GUIDE] Installing a Rom/CWM recovery/Root or going back to Stock - Samsung Fascinate - by droidstyle
[GUIDE]2012 Fascinate Rooting Glossary for Noobs - Definitions in layman's terms by jawman27
[GUIDE] Pit Stop for Anycall SHW M110S Korean Galaxy S by xsenman

The file stored in 0X00000000 of block 2 is perfect.
Check is correct.
Ready to disable icache.
Succeed in loading Boot1.
Jump to Boot1.
[       0.152] boot1 version : 1.3.1a
[       0.152] pmu type = 3
[       0.152] bat vol = 1580
[       0.183] axi:ahb:apb=3:2:2
[       0.183] set dcdc2=1400, clock=1008 successed
[       0.185] key
[       0.197] no key found
[       0.197] flash init start
[       2.316] flash init finish
[       2.319] fs init ok
[       2.321] fattype FAT16
[       2.321] fs mount ok
[       2.329] script finish
[       2.330] power finish
[       2.338] BootMain start
[       2.338] 0
[       2.362] usbdc_vol = 4000, usbdc_cur = 0
[       2.362] usbpc_vol = 4000, usbpc_cur = 0
[       2.365] init to usb pc
[       2.368] set pc
[       2.455] power trigger
[       2.456] startup status = 0
[       2.456] power start detect
[       2.459] power enter detect
[       2.464] usb start detect
[       2.465] usb enter detect
[       2.468] USB Device!!
[       2.868] set dc
[       3.026] WRN:L149(OSAL/OSAL_De.c):Length is ZERO!
[       4.527] no battery exist
[       4.527] power exit detect
[       4.527] usb exit detect
[       4.530] key value = 0
[       4.533] recovery key high 6, low 4
[       4.536] unable to find fastboot_key key_max value
[       4.545] test for multi os boot with display
[       4.606] show pic finish
[       4.606] load kernel start
[       4.632] load kernel successed
[       4.632] start address = 0x4a000000
[       4.634] power exit detect
[       4.637] usb exit d
U-Boot 2011.09-rc1-dirty (Apr 26 2012 - 20:34:36) Allwinner Technology
CPU:   SUNXI Family
Board: A10-EVB
DRAM: 512 MiB
NAND: 3800 MiB
In:    serial
Out:   serial
Err:   serial
--------fastboot partitions--------
-total partitions:9-
-name-        -start-       -size-
bootloader : 100000        1000000
env         : 1100000       200000
boot        : 1300000       2000000
system      : 3300000       10000000
data        : 13300000      10000000
misc        : 23300000      100000
recovery    : 23400000      2000000
cache       : 25400000      8000000
UDISK       : 2d400000      c0400000
-----------------------------------
Hit any key to stop autoboot: 0

NAND read: device 0 offset 0x1300000, size 0x2000000
33554432 bytes read: OK

Starting kernel ...

[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.0.8+ (root@raja-desktop) (gcc version 4.5.1 (Sourcery G++ Lite 2010.09-50) ) #4 PREEMPT Wed Nov 28 14:42:28 IST 2012
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
[    0.000000] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: sun4i
[    0.000000] Total Detected Memory: 1024MB with 2 banks
[    0.000000] Memory Reserved(in bytes):
[    0.000000]     LCD: 0x5a000000, 0x02000000
[    0.000000]     SYS: 0x43000000, 0x00010000
[    0.000000]     G2D: 0x58000000, 0x01000000
[    0.000000]     VE : 0x44000000, 0x05000000
[    0.000000]     VE : 0x49000000, 0x01000000
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] On node 0 totalpages: 245760
[    0.000000] free_area_init_node: node 0, pgdat c0901900, node_mem_map c10ea000
[    0.000000]   Normal zone: 1280 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 146176 pages, LIFO batch:31
[    0.000000]   HighMem zone: 768 pages used for memmap
[    0.000000]   HighMem zone: 97536 pages, LIFO batch:31
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 243712
[    0.000000] Kernel command line: console=ttyS0,115200 rw init=/init loglevel=8
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 448MB 512MB = 960MB total
[    0.000000] Memory: 831252k/831252k available, 151788k reserved, 393216K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     DMA     : 0xffc00000 - 0xffe00000   (   2 MB)
[    0.000000]     vmalloc : 0xe8800000 - 0xf0000000   ( 120 MB)
[    0.000000]     lowmem : 0xc0000000 - 0xe8000000   ( 640 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   ( 14 MB)
[    0.000000]       .init : 0xc0008000 - 0xc004a000   ( 264 kB)
[    0.000000]       .text : 0xc004a000 - 0xc08b3fe0   (8616 kB)
[    0.000000]       .data : 0xc08b4000 - 0xc090d2d8   ( 357 kB)
[    0.000000]        .bss : 0xc090d2fc - 0xc0aed9c0   (1922 kB)
[    0.000000] SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:96 nr_irqs:96 96
[    0.000000] timer0: Periodic Mode
[    0.000000] sw_timer_init,line:397
[    0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[    0.000000] aw_clksrc_init, line:338
[    0.000000] Console: colour dummy device 80x30
[    0.053666] try to parse apb frequency from script faild!
[    0.053745] SOFTWINNER DMA Driver, (c) 2003-2004,2006 Simtec Electronics
[    0.053808] Initialize DMAC OK
[    0.059123] bio: create slab <bio-0> at 0
[    0.059741] SCSI subsystem initialized
[    0.059960] usbcore: registered new interface driver usbfs
[    0.060000] usbcore: registered new interface driver hub
[    0.060000] usbcore: registered new device driver usb
[    0.060000] Advanced Linux Sound Architecture Driver Version
1.0.24.

[    0.060000] Bluetooth: Core ver 2.16
[   21.466444] warning: `zygote' uses 32-bit capabilities (legacy support in use)
[   21.746923] init: waitpid returned pid 158, status = 0000000b
[   21.752991] init: process 'surfaceflinger', pid 158 exited
[   21.758636] init: process 'surfaceflinger' killing any children in process group
[   21.766152] init: service 'zygote' is being killed
[   21.779176] init: starting 'zygote'
[   21.783562] init: waitpid returned pid 154, status = 00000009
[   21.790130] init: Created socket '/dev/socket/zygote' with mode '666', user '0', group '0'
[   21.798499] init: untracked pid 154 exited
[   21.820931] init: waitpid returned pid 163, status = 00000009
[   21.826712] init: untracked pid 163 exited
[   25.842043] init: starting 'surfaceflinger'

Password Hacking Software

Password cracking is the process of recovering secret passwords from data that has been stored in or transmitted by a computer system. A common approach is to repeatedly try guesses for the password.
Most passwords can be cracked by using following techniques :

1) Hashing :- Here we will refer to the one way function (which may be either an encryption function or cryptographic hash) employed as a hash and its output as a hashed password.
If a system uses a reversible function to obscure stored passwords, exploiting that weakness can recover even 'well-chosen' passwords.
One example is the LM hash that Microsoft Windows uses by default to store user passwords that are less than 15 characters in length.
LM hash breaks the password into two 7-character fields which are then hashed separately, allowing each half to be attacked separately.

Hash functions like SHA-512, SHA-1, and MD5 are considered impossible to invert when used correctly.

2) Guessing :- Many passwords can be guessed either by humans or by sophisticated cracking programs armed with dictionaries (dictionary based) and the user's personal information. Not surprisingly, many users choose weak passwords, usually one related to themselves in some way. Repeated research over some 40 years has demonstrated that around 40% of user-chosen passwords are readily guessable by programs. Examples of insecure choices include:
* blank (none)
* the word "password", "passcode", "admin" and their derivatives
* the user's name or login name
* the name of their significant other or another person (loved one)
* their birthplace or date of birth
* a pet's name
* a dictionary word in any language
* automobile licence plate number
* a row of letters from a standard keyboard layout (eg, the qwerty keyboard -- qwerty itself, asdf, or qwertyuiop)
* a simple modification of one of the preceding, such as suffixing a digit or reversing the order of the letters.
and so on....
In one survery of MySpace passwords which had been phished, 3.8 percent of passwords were a single word found in a dictionary, and another 12 percent were a word plus a final digit; two-thirds of the time that digit was.

A password containing both uppercase & lowercase characters, numbers and special characters too; is a strong password and can never be guessed.

Check Your Password Strength

3) Default Passwords :- A moderately high number of local and online applications have inbuilt default passwords that have been configured by programmers during development stages of software. There are lots of applications running on the internet on which default passwords are enabled. So, it is quite easy for an attacker to enter default password and gain access to sensitive information. A list containing default passwords of some of the most popular applications is available on the internet.

Always disable or change the applications' (both online and offline) default username-password pairs.

4) Brute Force :- If all other techniques failed, then attackers uses brute force password cracking technique. Here an automatic tool is used which tries all possible combinations of available keys on the keyboard. As soon as correct password is reached it displays on the screen.This techniques takes extremely long time to complete, but password will surely cracked.

Long is the password, large is the time taken to brute force it.

5) Phishing :- This is the most effective and easily executable password cracking technique which is generally used to crack the passwords of e-mail accounts, and all those accounts where secret information or sensitive personal information is stored by user such as social networking websites, matrimonial websites, etc.
Phishing is a technique in which the attacker creates the fake login screen and send it to the victim, hoping that the victim gets fooled into entering the account username and password. As soon as victim click on "enter" or "login" login button this information reaches to the attacker using scripts or online form processors while the user(victim) is redirected to home page of e-mail service provider.

Never give reply to the messages which are demanding for your username-password, urging to be e-mail service provider.

It is possible to try to obtain the passwords through other different methods, such as social engineering, wiretapping, keystroke logging, login spoofing, dumpster diving, phishing, shoulder surfing, timing attack, acoustic cryptanalysis, using a Trojan Horse or virus, identity management system attacks (such as abuse of Self-service password reset) and compromising host security.
However, cracking usually designates a guessing attack.

I’m happy to announce the release of my first Free eBook — Linux 101 Hacks. There are total of 101 hacks in this book that will help you build a strong foundation in Linux. All the hacks in this book are explained with appropriate Linux command examples that are easy to follow.

This free eBook contains 12 chapters with total of 140 pages. Hacks mentioned in 6 chapters are based on the articles that I’ve already posted on my blog. Hacks mentioned in rest of the 6 chapters are brand new.

If you like this eBook, please submit this post to your favorite social-media sites and spread the news.

“Another collection of hacks? Yes! If you have just completed your first admin course or looking for better ways to get the job done the “Linux 101 Hacks” eBook is a good point to start. These useful tips are concise, well written and easy to read.

Well done – I will recommend this eBook to my students.”

– Prof. Dr. Fritz Mehner, FH Südwestfalen, Germany
(Author of several awesome Vim plugins, including bash-support Vim plugin)

Download Free eBook

Download Free eBook: Linux 101 Hacks
Password: To get the password, follow these 3 easy steps.

5. Monitor CPU and disk usage with iostat

Would you like to know how your hard disks behave? Or how well does your CPU churn? iostat is a utility that reports statistics for CPU and I/O devices on your system. It can help you identify bottlenecks and mis-tuned kernel parameters, allowing you to boost the performance of your machine.

Here's a sample run of iostat:

iostat -x 10 10

6. Monitor memory usage with vmstat

vmstat does the similar job, except it works with the virtual memory statistics. For Windows users, please note the term virtual does not refer to the pagefile, i.e. swap. It refers to the logical abstraction of memory in kernel, which is then translated into physical addresses.

vmstat reports information about processes, memory, paging, block IO, traps, and CPU activity. Again, it is very handy for detecting problems with system performance. Here's a sample run of vmstat:

vmstat -x 10 10

7. Combine the power of iostat and vmstat with dstat

dstat aims to replace vmstat, iostat and ifstat combined. It also offers exporting data into .csv files that can then be analyzed using spreadsheet software. dstat uses a pleasant color

8. Collect, report or save system activity information with sar

sar is another powerful, versatile system. It is a sort of a jack o' all trades when it comes to monitoring and logging system activity. sar can be very useful for trying to analyze strange system problems where normal logs like boot.msg, messages or secure under /var/log do not yield too much information. sar writes the daily statistics into log files under /var/log/sa. Like we did before, we can monitor CPU utilization, every 2 seconds, 10 times:

sar -u 2 10

9. Create UDP server-client - version 1

Here's something radical: create a small UDP server that listens on a port. Then configure a client to send information to the server. All this without root access!

Configure server with netcat

netcat is an incredibly powerful utility that can do just about anything with TCP or UDP connections. It can open connections, listen on ports, scan ports, and much more, all this with both IPv4 and IPv6.

In our example, we will use it to create a small UDP server on one of the non-service ports. This means we won't need root access to get it going.

netcat -l -u -p 42000

Configure client

Now we need to configure the client. The big question is how to tell our process to send data to a remote machine, to a UDP port? The answer is quite simple: open a file descriptor that points to the remote server. Here's the actual BASH script that we will use to test our connection:

The most interesting bit is the line that starts with exec.

exec 104<> /dev/udp/192.168.1.143/$1

10. Configure UDP server-client - version 2

The limitation with the exercise above is that we do not control over some of the finer aspects of our connection. Furthermore, the connection is limited to a single end-point. If one client connects, others will be refused. To make things more exciting, we can improve our server. Instead of using netcat, we will write one of our own - in Perl.
Perl is a powerful programming language, very flexible, very neat. I must admin I have only recently began dabbling in it, so do not expect any miracles, but here's one way of creating a UDP server in Perl - there are tons of other implementations available, better, smarter, faster, and more elegant.
The code is very simple. First, let's take a look at the entire file and then examine sections of code. Here it is:

#!/usr/bin/perl

use IO::Socket;

$server = IO::Socket::INET->new(LocalPort => '50060',
                                Proto => "udp")
or die "Could not create UDP server on port
$server_port : $@n";

my $datagram;
my $MAXSIZE = 16384; #buffer size

while (my $data=$server->recv($datagram,$MAXSIZE))
{
    print $datagram;
    my $logdate=`date +"%m-%d-%H:%M:%S"`;
    chomp($logdate);
    my $filename="file.$logdate";
    open(FD,">","$filename");
    print FD $datagram;
    close(FD);
}

close($server);

The code begins with the standard Perl declaration. If you want extra debugging, you can add the -w flag. If you want to use strict code, then you may also want to add use strict; declaration. I warmly recommend this.
The next important bit is this one:

use IO::Socket;

This one tells Perl to use the IO::Socket object interface. You can also use IO:Socket::INET specifically for domain sockets. For more information, please check the official Perl documentation.
The next bit is the creation of the socket, i.e. server:

$server = IO::Socket::INET->new(LocalPort => '50060',
Proto => "udp")
or die "Could not create UDP server on port
$server_port : $@n";

We are trying to open the local UDP port 50060. If this cannot be done, the script will die with a rather descriptive message.
Next, we define a variable that will take incoming data (datagram) and the buffer size. The buffer size might be limited by the network implementation or network restrictions on your router/switch or the kernel itself, so some values might not work for you.
And then, we have the server doing some hard work. It prints the data to the screen. But it also creates a log file with a time stamp and prints the data to the file as well.
The beauty of this implementation is that the server permits multiple incoming connections. Of course, you will have to decide how you want to differentiate the data sent by different clients, whether by a message header or using additional IO:Socket:INET objects like PeerAddr.

1. Run top in batch mode

time delay and the number of iterations can be configured, giving you the ability to dictate the data collection as you see fit. Here's an example:

top -b -d 10 -n 3 >> top-file

We have top running in batch mode (-b). It's going to refresh every 10 seconds, as specified by the delay (-d) flag, for a total count of 3 iterations (-n).

2. Write to more than one file at once with tee

In general, with static data, this is not a problem. You simply repeat the write operation. With dynamic data, again, this is not that much of a problem. You capture the output into a temporary variable and then write it to a number of files. But there's an easier and faster way of doing it, without redirection and repetitive write operations. The answer: tee.
tee is a very useful utility that duplicates pipe content. Now, what makes tee really useful is that it can append data to existing files, making it ideal for writing periodic log information to multiple files at once.
Here's a great example:

ps | tee file1 file2 file3

3. Unleash the accounting power with pacct

Did you know that you can log the completion of every single process running on your machine? You may even want to do this, for security, statistical purposes, load optimization, or any other administrative reason you may think of. By default, process accounting (pacct) may not be activated on your machine. You might have to start it:

/usr/sbin/accton /var/account/pacct

Once this is done, every single process will be logged. You can find the logs under /var/account. The log itself is in binary form, so you will have to use a dumping utility to convert it to human-readable form. To this end, you use the dump-acct utility.

dump-acct pacct

4. Dump utmp and wtmp logs

Like pacct, you can also dump the contents of the utmp and wtmp files. Both these files provide login records for the host. This information may be critical, especially if applications rely on the proper output of these files to function.
dump-utmp /var/log/wtmp

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