Richard Stallman at IIT Powai - Founder of GNU

Bio:

Richard Stallman launched the development of the GNU operating system in 1984. GNU is free software: everyone has the freedom to copy it and redistribute it, as well as to make changes either large or small. The GNU/Linux system, basically the GNU operating system with Linux added, is used on tens of millions of computers today. Stallman has received the ACM Grace Hopper Award, a MacArthur Foundation fellowship, the Electronic Frontier Foundation's Pioneer Award, and the the Takeda Award for Social/Economic Betterment, as well as several honorary doctorates.

It was wonderful.

Talk were on, free software stuff. GNU+Linux philosophy.

nice jokes on bush, iBad,supposed owner of your machine when using billy’s MS OS… it was fun

last event of group photography was good.
i ‘m waiting for group pics 
i’ve audio footage of event. I’ll convert the audio to be supported by Free codecs .oga .. as Richard asked all of us to do !..

I can do it with ffmpeg ! i love it.

Links:

http://www.techfest.org/lectures/richard_stallman/

http://iitb.mycollegediary.in/2010/09/05/richard-stallman-in-my-campus/

I will share audio links & pics with you soon.

As asked by Richard Stallman, I've created free video codec video to host on internet : 

You may not see this video if you are normal MS Win users as they may not have free codec! Its theora ogg video

http://www.filefactory.com/file/b3456d8/n/robert_stallman.ogv

 

Why I don't like Microsoft

Recently I had conversation with one of my friend Amit. It explains well why i dont like microsoft. I dont see windows unless I have to play counter strike !

Still I don't hate them.

(12:02:28 IST) Amit: hi
(12:02:33 IST) Mahen: hey
(12:02:37 IST) Amit sali: have you used MS office 2010?
(12:02:42 IST) Mahen: no man
(12:02:46 IST) Mahen: i never use MS :P
(12:02:52 IST) Amit: :)
(12:02:57 IST) Mahen: no MS office. only openoffice :)
(12:03:01 IST) Mahen: what happen?
(12:03:02 IST) Amit: linux pro ... hhhhmm!!
(12:03:23 IST) Mahen: yup
(12:05:14 IST) Amit: MS 2010 has upgraded my outlook profile ... then I unistalled 2010 and reverted to 2007 ... now I cannot have my old system as before .. not able to view my older emails in pst and archieves
(12:05:15 IST) Amit: :(
(12:05:36 IST) Mahen: Oops
(12:05:40 IST) Amit: F**K MS
(12:05:40 IST) Mahen: thats terrific !
(12:05:44 IST) Mahen: ha ha
(12:05:53 IST) Mahen: u r in trouble dude
(12:06:01 IST) Mahen: call sys admin & go home
(12:06:06 IST) Amit: :)
(12:06:46 IST) Amit: I need to again install 2010 to get my old emails
(12:06:56 IST) Mahen: oh yes. probably
(12:07:03 IST) Mahen: copy ur .pst to backup
(12:07:12 IST) Mahen: & then revert back to MS2007
(12:07:20 IST) Mahen: may be it'll work
(12:07:27 IST) Amit: I hope so
(12:07:34 IST) Mahen: best luck :)
(12:07:51 IST) Mahen: MS may deliver another patch or service pack to resolve this issue :D
(12:08:02 IST) Amit: hahaha

Apache httpd benchmarking

Simple command to check apache httpd benchmarking. Goes in similar way for DSS.

====================================================
[root@mahendra ~]# ab -n 100 -c 10 http://IP/webapp/xyz.jsp
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking (be patient).....done


Server Software: Apache
Server Hostname:
Server Port: 80

Document Path: /webapp/xyz.jsp
Document Length: 292 bytes

Concurrency Level: 10
Time taken for tests: 0.691 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 54200 bytes
HTML transferred: 29200 bytes
Requests per second: 144.68 [#/sec] (mean)
Time per request: 69.118 [ms] (mean)
Time per request: 6.912 [ms] (mean, across all concurrent requests)
Transfer rate: 76.58 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 19 30 5.4 31 53
Processing: 23 37 8.0 35 59
Waiting: 23 36 7.6 35 59
Total: 44 67 9.9 64 92

Percentage of the requests served within a certain time (ms)
50% 64
66% 71
75% 73
80% 76
90% 82
95% 86
98% 92
99% 92
100% 92 (longest request)
====================================================

Pdf documet creation & encyption

Just encounted with pdf creation :

One can simply find our Oracle's (earlier Sun's, although i'm not too happy to say non-open oracle) OpenOffice ! U can convert any doc, ppt, xls to pdf file.

Now comes the important part of protecting the document.
Here are some FOSS tools to get it done
[root@mahendra ~]# yum -y install pdftk*
Not loading "blacklist" plugin, as it is disabled
Not loading "whiteout" plugin, as it is disabled
Loaded plugins: refresh-packagekit
Config time: 1.676
Yum Version: 3.2.24
Setting up Package Sacks
pkgsack time: 4.772
rpmdb time: 0.424
Setting up Install Process
Building updates object
up:Obs Init time: 0.272
up:simple updates time: 0.479
up:obs time: 0.016
up:condense time: 0.000
updates time: 36.928
Resolving Dependencies
--> Finished Dependency Resolution
Dependency Process ending
Depsolve time: 161.988

Dependencies Resolved

====================================================================================================
Package Arch Version Repository Size
====================================================================================================
Installing:
pdftk i586 1.41-21.fc11 updates 90 k
Installing for dependencies:
bouncycastle i586 1.44-1.fc11 updates 3.3 M
bouncycastle-mail i586 1.44-1.fc11 updates 502 k
bouncycastle-tsp i586 1.44-1.fc11 updates 107 k
itext i586 2.1.7-5.fc11 updates 3.1 M

Transaction Summary
====================================================================================================
Install 5 Package(s)
Upgrade 0 Package(s)

Total download size: 7.2 M
Downloading Packages:
(1/5): bouncycastle-1.44-1.fc11.i586.rpm | 3.3 MB 00:21
(2/5): bouncycastle-mail-1.44-1.fc11.i586.rpm | 502 kB 00:05
(3/5): bouncycastle-tsp-1.44-1.fc11.i586.rpm | 107 kB 00:01
(4/5): itext-2.1.7-5.fc11.i586.rpm | 3.1 MB 00:23
(5/5): pdftk-1.41-21.fc11.i586.rpm | 90 kB 00:01
----------------------------------------------------------------------------------------------------
Total 125 kB/s | 7.2 MB 00:58
Running rpm_check_debug
Adding Package pdftk-1.41-21.fc11.i586 in mode u
Adding Package bouncycastle-1.44-1.fc11.i586 in mode u
Adding Package bouncycastle-tsp-1.44-1.fc11.i586 in mode u
Adding Package itext-2.1.7-5.fc11.i586 in mode u
Adding Package bouncycastle-mail-1.44-1.fc11.i586 in mode u
rpm_check_debug time: 0.336
Running Transaction Test
Adding Package pdftk-1.41-21.fc11.i586 in mode u
Adding Package bouncycastle-1.44-1.fc11.i586 in mode u
Adding Package bouncycastle-tsp-1.44-1.fc11.i586 in mode u
Adding Package itext-2.1.7-5.fc11.i586 in mode u
Adding Package bouncycastle-mail-1.44-1.fc11.i586 in mode u
Finished Transaction Test
Transaction Test Succeeded
Transaction Test time: 1.141
Adding Package pdftk-1.41-21.fc11.i586 in mode u
Adding Package bouncycastle-1.44-1.fc11.i586 in mode u
Adding Package bouncycastle-tsp-1.44-1.fc11.i586 in mode u
Adding Package itext-2.1.7-5.fc11.i586 in mode u
Adding Package bouncycastle-mail-1.44-1.fc11.i586 in mode u
Running Transaction
Installing : bouncycastle-1.44-1.fc11.i586 1/5
Installing : bouncycastle-mail-1.44-1.fc11.i586 2/5
Installing : bouncycastle-tsp-1.44-1.fc11.i586 3/5
Installing : itext-2.1.7-5.fc11.i586 4/5
Installing : pdftk-1.41-21.fc11.i586 5/5
Transaction time: 15.280

Installed:
pdftk.i586 0:1.41-21.fc11

Dependency Installed:
bouncycastle.i586 0:1.44-1.fc11 bouncycastle-mail.i586 0:1.44-1.fc11
bouncycastle-tsp.i586 0:1.44-1.fc11 itext.i586 0:2.1.7-5.fc11

Complete!
[root@mahendra ~]#
--> Finished Dependency Resolution
Dependency Process ending
Depsolve time: 161.988

Dependencies Resolved

====================================================================================================
Package Arch Version Repository Size
====================================================================================================
Installing:
pdftk i586 1.41-21.fc11 updates 90 k
Installing for dependencies:
bouncycastle i586 1.44-1.fc11 updates 3.3 M
bouncycastle-mail i586 1.44-1.fc11 updates 502 k
bouncycastle-tsp i586 1.44-1.fc11 updates 107 k
itext i586 2.1.7-5.fc11 updates 3.1 M

Transaction Summary
====================================================================================================
Install 5 Package(s)
Upgrade 0 Package(s)

Total download size: 7.2 M
Downloading Packages:
(1/5): bouncycastle-1.44-1.fc11.i586.rpm | 3.3 MB 00:21
(2/5): bouncycastle-mail-1.44-1.fc11.i586.rpm | 502 kB 00:05
(3/5): bouncycastle-tsp-1.44-1.fc11.i586.rpm | 107 kB 00:01
(4/5): itext-2.1.7-5.fc11.i586.rpm | 3.1 MB 00:23
(5/5): pdftk-1.41-21.fc11.i586.rpm | 90 kB 00:01
----------------------------------------------------------------------------------------------------
Total 125 kB/s | 7.2 MB 00:58
Running rpm_check_debug
Adding Package pdftk-1.41-21.fc11.i586 in mode u
Adding Package bouncycastle-1.44-1.fc11.i586 in mode u
Adding Package bouncycastle-tsp-1.44-1.fc11.i586 in mode u
Adding Package itext-2.1.7-5.fc11.i586 in mode u
Adding Package bouncycastle-mail-1.44-1.fc11.i586 in mode u
rpm_check_debug time: 0.336
Running Transaction Test
Adding Package pdftk-1.41-21.fc11.i586 in mode u
Adding Package bouncycastle-1.44-1.fc11.i586 in mode u
Adding Package bouncycastle-tsp-1.44-1.fc11.i586 in mode u
Adding Package itext-2.1.7-5.fc11.i586 in mode u
Adding Package bouncycastle-mail-1.44-1.fc11.i586 in mode u
Finished Transaction Test
Transaction Test Succeeded
Transaction Test time: 1.141
Adding Package pdftk-1.41-21.fc11.i586 in mode u
Adding Package bouncycastle-1.44-1.fc11.i586 in mode u
Adding Package bouncycastle-tsp-1.44-1.fc11.i586 in mode u
Adding Package itext-2.1.7-5.fc11.i586 in mode u
Adding Package bouncycastle-mail-1.44-1.fc11.i586 in mode u
Running Transaction
Installing : bouncycastle-1.44-1.fc11.i586 1/5
Installing : bouncycastle-mail-1.44-1.fc11.i586 2/5
Installing : bouncycastle-tsp-1.44-1.fc11.i586 3/5
Installing : itext-2.1.7-5.fc11.i586 4/5
Installing : pdftk-1.41-21.fc11.i586 5/5
Transaction time: 15.280

Installed:
pdftk.i586 0:1.41-21.fc11

Dependency Installed:
bouncycastle.i586 0:1.44-1.fc11 bouncycastle-mail.i586 0:1.44-1.fc11
bouncycastle-tsp.i586 0:1.44-1.fc11 itext.i586 0:2.1.7-5.fc11

Complete!
[root@mahendra ~]#

Examples :

Merge Two or More PDFs into a New Document

pdftk 1.pdf 2.pdf 3.pdf cat output 123.pdf

or (Using Handles):

pdftk A=1.pdf B=2.pdf cat A B output 12.pdf

or (Using Wildcards):

pdftk *.pdf cat output combined.pdf

Split Select Pages from Multiple PDFs into a New Document

pdftk A=one.pdf B=two.pdf cat A1-7 B1-5 A8 output combined.pdf

Rotate the First Page of a PDF to 90 Degrees Clockwise

pdftk in.pdf cat 1E 2-end output out.pdf

Rotate an Entire PDF Document's Pages to 180 Degrees

pdftk in.pdf cat 1-endS output out.pdf

Encrypt a PDF using 128-Bit Strength (the Default) and Withhold All Permissions (the Default)

pdftk mydoc.pdf output mydoc.128.pdf owner_pw foopass

Same as Above, Except a Password is Required to Open the PDF

pdftk mydoc.pdf output mydoc.128.pdf owner_pw foo user_pw baz

Same as Above, Except Printing is Allowed (after the PDF is Open)

pdftk mydoc.pdf output mydoc.128.pdf owner_pw foo user_pw baz allow printing

Decrypt a PDF

pdftk secured.pdf input_pw foopass output unsecured.pdf

Join Two Files, One of Which is Encrypted (the Output is Not Encrypted)

pdftk A=secured.pdf mydoc.pdf input_pw A=foopass cat output combined.pdf

Uncompress PDF Page Streams for Editing the PDF Code in a Text Editor

pdftk mydoc.pdf output mydoc.clear.pdf uncompress

Repair a PDF's Corrupted XREF Table and Stream Lengths (If Possible)

pdftk broken.pdf output fixed.pdf

Burst a Single PDF Document into Single Pages and Report its Data to doc_data.txt

pdftk mydoc.pdf burst

Report on PDF Document Metadata, Bookmarks and Page Labels

pdftk mydoc.pdf dump_data output report.txt

Most imp command to set read passwd for pdf :
pdftk my.pdf output mydoc128.pdf owner_pw foopass user_pw passwd



Reference :
http://angusj.com/pdftkb/
http://www.accesspdf.com/pdftk/

NOTE: Use pdf OR ps before thinking twice to print the doc & sending on snail mail..

save nature.. save humans

VirtualBox by Sun

VirtuaBox :

Sun took over Innotek VBox. Master class product to use multiple OSs on Linux box. I have became huge fan when I tried it. Most imp thing is no sign up, trial version OR registration headache.. Goes very well as open source.

As Linux user, I had limitation while using Microsoft supported stuff. As company intranet & many websites are still IE crazy. I installed Xp with Vbox on my Linux FC6.
Product site Download Page
ScreenShot

Win Xp on Linux Box :



Its was of great use when I started playing Counter Strike. I can start Vbox & play CS. Only you need to care is space & physical memory allocated should be good enough to do your stuff on VBox.

If you go for multiple OS on Vbox.. Physical memory allowed to allocate reduces as underlined OS need to have enough memory..

Guys you can enjoy all your games, movie, other utils of Win environment which may not work in Linux with WINE. Most of n/w stuff don't work with WINE.

Enjoy !
Keep posted if any issue.

micro emulator on FC6 Linux

Micro emulator :

Tried hands on java-j2me emulator on linux machine. Its also helpful in j2me development & trying out small java apps.

To add micro emulator as command in linux, put below lines in a file named microemulator. change permissions to executable. put the file in system path ie /usr/bin or any bin path

Command can set user-agent as "Nokia6030" same can be changed to any phone. Using proxy to connect net. Assuming microemulator is installed at path /opt/microemulator-2.0.1/
======================================================================
java -Dhttp.agent="Nokia6030/Nokia" -Dhttp.proxyHost= -Dhttp.proxyPort= -Xms32m -Xmx64m -jar /opt/microemulator-2.0.1/microemulator.jar -cp /opt/microemulator-2.0.1/lib/t/microemu-nokia-120.jar $1
======================================================================

You can delete RMS data stored by application by deleting midp suite data path : /home/mahendra/.microemulator/suite-*

For more details :

Home Page
Usage
Demo
Images



Screenshot as mentioned



Screenshot 240X320 device


For further help/assistance ... post query below

kudzu FC8 Eth1 Linux

Another post on linux after long time.

My friend Chinmay had issue with RealTek NIC on FC8. This guy had already destroyed 2 NIC on same machine. After opening the box, he placed the NIC on 2nd Ethernet slot on mother board. Rebooting machine didn't showed the eth1.

Followed the below steps to add the device :

1. First command to run after new h/w addition in any linux box : kudzu

2. kudzu detected the Ethernet card and added it in but couldn't show it when seen with ifconfig as eth1 config file was not on place.

3. I checked MAC of card with ifconfig -a , device was with name tmp_sakjdh132 ..
4. Created copy of eth0 /etc/sysconfig/network-scripts/ifcnf-eth0.conf to /etc/sysconfig/network-scripts/ifcnf-eth1.conf

5. Changes MAC in /etc/sysconfig/network-scripts/ifcnf-eth1.conf .

6. /etc/init.d/network restart solved all issue.

ifconfig showed eth1 with valid IP

Thats all !
Chinmay was than back to work. Trying to damage 3rd NIC card on his machine ;)

Ssh stable reverse tunnel

Many servers are being accessed using tunnels and we are tired of recreating the tunnel again & again. Here is script which can sure the availability of tunnel.
The solution to use ssh command without using the console(tty) is to add -t -t option. Option can be used for remote/local tunnels also.
Eg : ssh -t -t -R 2222:localhost:22 username@

This will create a pseudo terminal which will login to remote server. So, actual terminal is not engaged by ssh proc, which makes the tunnel more stable & consistent. To add on further check, we can check if ssh proc is running & create new ssh tunnel using shell script with a cron job at hourly interval. Shell script can be changed to reset tunnel every hour using kill $PID & recreate tunnel to insure availability.
For further details check man pages. Such tunnels can be configured to allow remote login to office machine. Feel free to ask if have any query. Sample tunnel script attached with mail.

Further suggestion are welcome !

Accessing same email account & mails from windows & Linux

This blog is in extension to the earlier blog http://mahendratipale.blogspot.com/2008/09/thunderbird-mail-backupmovingshifting.html mentioning backup & moving of mails on linux machine.

If you a dual boot & want to see same mails on both OS. Here is the solution !

Being power user of Linux & windows, I need mails & all other services to work smoothly on both most popular environments. Ater exploring in thunderbird capabilities, I figured out the way to access my company mail account in Linux & Windows using Thunderbird.

C:\Documents and Settings\Administrator\Application Data\Thunderbird\Profiles\jzk0qj4u.default\Mail\Local Folders

Config your mail account in windows.

Boot :
Reboot your system to linux.

Install Thunderbird :
Install thunderbird. Version 1.5+ is good enough.

Mount C:\
Now mount the C:\ drive on linux using mount command.
Same can be done to mount auto on every boot :
Edit /etc/fstab & add similar line as below
/dev/sda2 /home/mahendra/D_drive vfat gid=501,uid=501 1 1
/dev/sda1 /mnt/c ntfs defaults 0 0

pls check your device name /dev/sda_ , its file system & mount directory.

Now open thunderbird, config data directory path to : C:\Documents and Settings\Administrator\Application Data\Thunderbird\Profiles\jzk0qj4u.default\Mail\Local Folders

Restart your thunderbird. I have been using this from last few days. It works smooth. Pls make sure you mount c:\ before opening thunderbird. Otherwise you'll see blanck thunderbird account as mail directory is not accessible.

Comments & Suggestions welcome !!!! :)

Formating a undetectable flash drive

Here some more recent RnD done on one of flash drive of friend - Rishit. He was about to dump harddisk data to professional data recoverer.. Eventually settled down on party ;-)

A Transiant flash drive of 120GB space, which was undetectable on WindowsXp.
Condition :

• Drive undetected on Windows
• Mounted on Linux-FC6, but could not delete dirty partition sectors
• Nor move corrupted data to other location.
• Drive was almost in condition to dump

===========================================
[root@localhost ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
23520588 20259704 2046832 91% /
/dev/sda3 101105 16544 79340 18% /boot
tmpfs 512748 0 512748 0% /dev/shm
/dev/sda2 30701264 25927728 4773536 85% /home/mahendra/D_drive
/dev/sda1 20972824 15270744 5702080 73% /mnt/c
/dev/sdb1 117218240 3006620 114211620 3% /media/Rishit Shah
[root@localhost ~]# mkfs /dev/sdb1
mke2fs 1.39 (29-May-2006)
/dev/sdb1 is mounted; will not make a filesystem here!
[root@localhost ~]# mkfs -t vfat /dev/sdb1
mkfs.vfat 2.11 (12 Mar 2005)
mkfs.vfat: /dev/sdb1 contains a mounted file system.
[root@localhost ~]# mkfs -t vfat /dev/sdb1
mkfs.vfat 2.11 (12 Mar 2005)
mkfs.vfat: /dev/sdb1 contains a mounted file system.
[root@localhost ~]# mkfs /dev/sdb1
mke2fs 1.39 (29-May-2006)
/dev/sdb1 is mounted; will not make a filesystem here!
===========================================

[root@localhost ~]# fdisk -l

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 2611 20972826 7 HPFS/NTFS
/dev/sda2 2612 6435 30716280 c W95 FAT32 (LBA)
/dev/sda3 6436 6448 104422+ 83 Linux
/dev/sda4 6449 9729 26354632+ 5 Extended
/dev/sda5 6449 9729 26354601 8e Linux LVM

Disk /dev/sdb: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 1 14593 117218241 7 HPFS/NTFS
[root@localhost ~]# fdisk /dev/sd
sda sda1 sda2 sda3 sda4 sda5 sdb sdb1
[root@localhost ~]# fdisk /dev/sdb1

The number of cylinders for this disk is set to 14592.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sdb1: 120.0 GB, 120031478784 bytes
255 heads, 63 sectors/track, 14592 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

This doesn't look like a partition table
Probably you selected the wrong device.

Device Boot Start End Blocks Id System
/dev/sdb1p1 ? 13578 119522 850995205 72 Unknown
Partition 1 does not end on cylinder boundary.
/dev/sdb1p2 ? 45382 79243 271987362 74 Unknown
Partition 2 does not end on cylinder boundary.
/dev/sdb1p3 ? 10499 10499 0 65 Novell Netware 386
Partition 3 does not end on cylinder boundary.
/dev/sdb1p4 167628 167631 25817+ 0 Empty
Partition 4 does not end on cylinder boundary.

Partition table entries are not in disk order

Command (m for help): d
Partition number (1-4): 1

Command (m for help): d
Partition number (1-4): 2

Command (m for help): d
Partition number (1-4): 3

Command (m for help): d
Selected partition 4
Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 22: Invalid argument.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.

===========================================
Tried deleting all partitions but w command in fdisk dosnt work. Its bad man.

[root@localhost ~]# mkfs.vfat -F 16 /dev/sdb1
mkfs.vfat 2.11 (12 Mar 2005)
mkfs.vfat: /dev/sdb1 contains a mounted file system.

Final try for umounting & then formating the drive

umount -f /dev/sdc1
[root@localhost ~]# mkdosfs -F32 -I /dev/sdc1
mkdosfs 2.11 (12 Mar 2005)
[root@localhost ~]#



Wow !!! I removed the drive & reconnected

[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
23G 20G 2.0G 91% /
/dev/sda2 30G 25G 4.6G 85% /home/mahendra/D_drive
/dev/sda3 99M 17M 78M 18% /boot
tmpfs 501M 0 501M 0% /dev/shm
/dev/sda1 21G 15G 5.5G 73% /mnt/c
/dev/sdc1 112G 16K 112G 1% /media/disk-1

It works !

Remote Printer on Linux - FC6

Had encounter with printer configuration on Dell laptop. I did it myself as we had no system admin for linux

Lets see how we can install/config remote printer :

1. Make sure cup daemon is running
2. /etc/init.d/cups restart , u can check by ps -eaf | grep cup
3. Add printer from System-->Administration-->printing
4. Select valid driver/model. General linux printer driver list/ dtd file list comprise most of standard printers. If some printer name is not available, select closed cousin of it. Eg HP Deskjet 5500 is not present in FC6, select Deskjet 3300. It works !
5. Select host-name (ip addr) of printer machine. Put port 9100 as its default port.
6. Device URL should look like socket://<-ip->:9100
7. Do finish once u see correct URL.
8. Try printing test page
9. Wow ! It works!!!

First time opening printer adding wizard may hang your machine. May be due to huge resource use.

I got +ve results on FC6 on Dell D520 and CentOS 5.0 on Dell D630

Problems welcome !!!

Thunderbird mail backup/moving/shifting to other machin

Hi All,

Another post to save your mails.

Mozilla - Thunderbird always get installed at its location but keeps mails & configs in user's home.

On Linux/Unix system :
/home/mahendra/.thunderbird

while on windows :
C:\\Document & Se...\mahendra\.Thunderbird\

structure in /home/mahendra/.thunderbird :
[mahendra@localhost .thunderbird]$ pwd
/home/mahendra/.thunderbird
[mahendra@localhost .thunderbird]$ ls -1
17jgza7q.default
appreg
profiles.ini
[mahendra@localhost .thunderbird]$
17jgza7q.default is directory for default mail address.

[mahendra@localhost .thunderbird]$ cd 17jgza7q.default/
[mahendra@localhost 17jgza7q.default]$ ll
total 5936
-rw-rw-r-- 1 mahendra mahendra 0 Apr 14 15:39 abook-1.mab
-rw-r--r-- 1 mahendra mahendra 202839 Sep 15 17:29 abook.mab
-rw-r--r-- 1 mahendra mahendra 248 May 28 11:22 blocklist.xml
-rw------- 1 mahendra mahendra 65536 Sep 15 11:17 cert8.db
-rw------- 1 mahendra mahendra 144 Apr 7 10:33 compatibility.ini
-rw-rw-r-- 1 mahendra mahendra 169297 Apr 7 10:34 compreg.dat
-rw------- 1 mahendra mahendra 235 Aug 22 2007 cookies.txt
-rw-r--r-- 1 mahendra mahendra 4118 Sep 15 15:55 downloads.rdf
drwxr-xr-x 6 mahendra mahendra 4096 Jan 24 2008 extensions
-rw-r--r-- 1 mahendra mahendra 604 Apr 7 10:34 extensions.cache
-rw-r--r-- 1 mahendra mahendra 527 Apr 7 10:34 extensions.ini
-rw-r--r-- 1 mahendra mahendra 8889 Apr 7 10:34 extensions.rdf
-rw-r--r-- 1 mahendra mahendra 1438 Aug 20 2007 history.mab
drwxr-xr-x 3 mahendra mahendra 4096 Aug 20 2007 ImapMail
-rw------- 1 mahendra mahendra 16384 Sep 15 11:17 key3.db
-rw-r--r-- 1 mahendra mahendra 33265 Sep 15 17:29 localstore.rdf
lrwxrwxrwx 1 mahendra mahendra 15 Sep 15 11:22 lock -> 127.0.0.1:+6722
drwxr-xr-x 5 mahendra mahendra 4096 May 27 18:29 Mail
-rw-r--r-- 1 mahendra mahendra 477 Jan 17 2008 mailViews.dat
-rw-r--r-- 1 mahendra mahendra 8161 Jul 22 13:05 mimeTypes.rdf
-rw-r--r-- 1 mahendra mahendra 46531 Sep 15 17:52 panacea.dat
-rw-r--r-- 1 mahendra mahendra 45 Aug 7 20:11 persdict.dat
-rwxr-xr-x 1 mahendra mahendra 14641 Sep 15 11:17 prefs.js
-rw------- 1 mahendra mahendra 16384 Jan 17 2008 secmod.db
-rw------- 1 mahendra mahendra 269 Jul 21 11:26 signons.txt
-rw-r--r-- 1 mahendra mahendra 18922 Aug 29 16:39 training.dat
-rw-r--r-- 1 mahendra mahendra 0 Aug 20 2007 urlclassifier2.sqlite
drwxr-xr-x 2 mahendra mahendra 4096 Aug 20 2007 US
-rw-r--r-- 1 mahendra mahendra 10 Sep 15 11:17 virtualFolders.dat
-rw-r--r-- 1 mahendra mahendra 1083041 Feb 28 2008 XPC.mfasl
-rw-rw-r-- 1 mahendra mahendra 109260 Apr 7 10:34 xpti.dat
-rw-r--r-- 1 mahendra mahendra 4144667 Sep 2 18:23 XUL.mfasl



Actual mails are present in :
/home/mahendra/.thunderbird/17jgza7q.default/Mail/Local Folders


Whenever u want to change the machine/laptop OR want to backup state of mails at that pertucular time. Zip the /home/mahendra/.thunderbird/17jgza7q.default/Mail and save it to backup locations.

To replicate the mails on other machine. Install Thunderbird & unzip the Mail folder at same location.
Similar stuff is also possible for other Mozilla products like Firefox...
Addons, Plug-ins , bookmarks can be saved in similar fashion.

C U :)

SSH connection reuse

It really speedup my ssh connection & never prompt passwd for second connection to same host.
Very handy to use.

Open ~/.ssh/config file (ssh client configuration file). If you need system wide settings add to /etc/ssh/ssh_config file:
$ vi ~/.ssh/config
Append following code to reuse ssh connection for all hosts:

host *
  controlmaster auto
  controlpath /tmp/ssh-%r@%h:%p

Where,

1. controlmaster auto: Set controlmaster to auto
2. controlpath /tmp/ssh-%r@%h:%p: Specify the path to the control socket used for connection sharing. In the path, ‘%h will be substituted by the target host name, %p the port, and %r by the remote login username. It is recommended that any ControlPath used for opportunistic connection sharing include at least %h, %p, and %r. This ensures that shared connections are uniquely identified.

You can also match any host in the 192.168.0.[0-9] network range with following pattern:

Host 192.168.0.?
  controlmaster auto
  controlpath /tmp/ssh-%r@%h:%p

For any host in the ".co.in" set of domains, reuse the connection:

Host *.co.in
  controlmaster auto
  controlpath /tmp/ssh-%r@%h:%p

Save and close the file. Now connect as usual,
$ ssh vivek@vpn.nixcraft.co.in
Next, time you connect again it will use connection socket /tmp/ssh-vivek@vpn.nixcraft.in:22 to speed up things. You don't have to input password or anything else. You need one connection to be active for the second to be accelerated. This also works with scp / sftp etc:
$ scp /path/to/file.txt vivek@vpn.nixcraft.co.in:/tmp

Welcome if still its not working on your machine.


You can have ~/.ssh/config file configured as
===============================================

host lin
hostname 172.16.13.20
user root
port 22

host Lin
hostname 172.16.13.20
user mahendra
port 22

host *
controlmaster auto
controlpath /tmp/ssh-%r@%h:%p

===============================================

Comments welcome !!!

Getting Hardware information without opening Box on LInux

With Linux- FC6 running on Dell machine, How can I get hardware info of my machine?

"dmidecode " is the key command to fetch such info.

Command is readily available on most of Linuxes

Here is some more details on same command :
-t, --type TYPE
Only display the entries of type TYPE. TYPE can be either a DMI type number, or a comma-separated of type numbers, or a keyword from the following list: bios, system, baseboard, chassis, pro cessor, memory, cache, connector, slot. Refer to the DMI TYPES section below for details. If this option is used more than once, the set of displayed entries will be the union of all the given types. If TYPE is not provided or not valid, a list of all valid keywords is printed and dmidecode exits with an error. Mutually exclusive with --string.

[root@localhost drive_c]# dmidecode -t1
# dmidecode 2.7
SMBIOS 2.4 present.

Handle 0x0100, DMI type 1, 27 bytes.
System Information
Manufacturer: Dell Inc.
Product Name: Latitude D520
Version: Not Specified
Serial Number: DV9SQ1S
UUID: 44454C4C-5600-1039-8053-C4C04F513153
Wake-up Type: Power Switch
SKU Number: Not Specified
Family:


We can use type in below format :
Type Information
----------------------------------------
0 BIOS
1 System
2 Base Board
3 Chassis
4 Processor
5 Memory Controller
6 Memory Module
7 Cache
8 Port Connector
9 System Slots
10 On Board Devices
11 OEM Strings
12 System Configuration Options
13 BIOS Language
14 Group Associations
15 System Event Log
16 Physical Memory Array
17 Memory Device
18 32-bit Memory Error
19 Memory Array Mapped Address
20 Memory Device Mapped Address
21 Built-in Pointing Device
22 Portable Battery
23 System Reset
24 Hardware Security
25 System Power Controls
26 Voltage Probe
27 Cooling Device
28 Temperature Probe
29 Electrical Current Probe
30 Out-of-band Remote Access
31 Boot Integrity Services
32 System Boot
33 64-bit Memory Error
34 Management Device
35 Management Device Component
36 Management Device Threshold Data
37 Memory Channel
38 IPMI Device
39 Power Supply

Keywords can be used instead of type numbers with --type. Each keyword is equivalent to a list of type
numbers:

Keyword Types
------------------------------
bios 0, 13
system 1, 12, 15, 23, 32
baseboard 2, 10
chassis 3
processor 4
memory 5, 6, 16, 17
cache 7
connector 8
slot 9

Keywords are matched case-insensitively. The following command lines are equivalent:

· dmidecode --type 0 --type 13

· dmidecode --type 0,13

· dmidecode --type bios

· dmidecode --type BIOS



Here is some more command info , very frequently used :

top - I guess u know ;)
vmstat - Virtual memory stats
iostat - I/O stats
uptime - load avg
sar - system activity report
lspci - show all PCI peripherals attached to system


Welcome !!!

J2ME+Polish+Netbeans+Linux Is possible ...

Dear all,

If somebody doubt "How linux can be used for proffesional J2ME development?" But , I would say "Yes, Its very much feasible"

Netbeans & Mobility Pack Instalation :

First of all get your copy of Netbeans mobility pack.

Get free CD from Netbean containing JDK, Latest Netbeans ( IDE & Mobility plugin )
http://www.netbeans.org/about/media.html
OR
download mobility pack & Netbeans IDE

wtk 2.2 download for Linux - Worked great with FC6 ;)
http://java.sun.com/products/sjwtoolkit/download-2_2.html

Latest wtk and jdk are available :
http://java.sun.com/javame/downloads/index.jsp

If you dont like to use emulator provided by wtk, we can also use microemulator(see on source forge)

J2me-Polish integration with Netbeans

Get j2me-polish latest jar , run it using
java -jar j2me-polish.jar

start a new installation procedure for j2me-polish

Follow below steps to make polish working with netbeans :

For integrating J2ME Polish with NetBeans 4.0 create a new project and copy the sample project from ${polish.home}/sample into your new project with a filemanager.
Rightclick the build.xml and choose "Run Target" > "j2mepolish" for running the example.
• Create a new project:
Go to "File" >"New Project" and select "Mobile" >"Mobile Application"
as your project type. Give the project any name and choose any folder as the
project's home. Deselect the "Create Hello MIDlet"option and select "Finish" to create the
project.
• Copy the sample project: Navigate to the "${polish.home}/sample" directory with your filemanager (e.g. Windows Explorer on Windows or Finder on Mac OS X). Select the "resources", "resources2" and "src" folders as well as the "build.xml" file and copy all into the folder of your NetBeans project. Overwrite any existing files.
• Return to NetBeans, rightclick
your new project in the "Projects" view and select "Refresh
Folders". You can now view the sample application in the "de.enough.polish.example" package.
• Right click your project again and select "Properties". Go to "Build" and select "Libraries and
Resources". Select "Add Jar/Zip" and add the "${polish.home}/import/enoughj2mepolishclient.jar" file to your project.
• Now switch to the "Files" view and right click the "build.xml" file. Select "Run Target" >
"Advanced". Write "test, j2mepolish" in the following dialog, so that the "test" target is executed first, followed by the "j2mepolish" target. J2ME Polish now executes and starts the WTK emulator



I hope , once you get above things installed , we can proceed for any kind of development of J2ME..

:)

Enjoy.

Reliance Huwai - Data Card on FC6 Linux

To configure Reliance data card (Huwai) on Dell D520 with FC6, hope it works in same manner on other laptops and linux too

Just follow below steps after adding data card inside slot.


After inserting data card see
# cat /proc/bus/usb/devices

.....
.....
T: Bus=02 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.01 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1
P: Vendor=12d1 ProdID=1001 Rev= 0.00
S: Manufacturer=Huawei Technologies
S: Product=Huawei Mobile
S: SerialNumber=HUAWEI EC3X1
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=pl2303
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=128ms
E: Ad=8a(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=0b(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=pl2303
E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=06(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms

If you cant see, Use grep

Now modprobe the driver

Code:
# modprobe usbserial vendor=0x12d1 product=0x1001
Should get something like this with dmesg
Code:
# dmesg
[ 2315.412106] usbcore: registered new interface driver usbserial
[ 2315.412508] drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
[ 2315.461938] usbcore: registered new interface driver usbserial_generic
[ 2315.461945] drivers/usb/serial/usb-serial.c: USB Serial Driver core
[ 2315.480382] drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303
[ 2315.480414] pl2303 2-6:1.0: pl2303 converter detected
[ 2315.480608] usb 2-6: pl2303 converter now attached to ttyUSB0
[ 2315.480620] pl2303 2-6:1.1: pl2303 converter detected
[ 2315.480691] usb 2-6: pl2303 converter now attached to ttyUSB1

Now edit your wvdial.conf file

Code
# vi /etc/wvdial.conf
[Modem0]
Modem = /dev/ttyUSB0
Baud = 115200
SetVolume = 0
Dial Command = ATDT
Init1 = ATZ
FlowControl = Hardware (CRTSCTS)
[Dialer cdma]
Username = You Phone Number Here
Password = Your Password ... usually same as your phone number
Phone = #777
Stupid Mode = 1
Inherits = Modem0


In my case , it looks like this


#more /etc/wvdial.conf
[Modem0]
Modem= /dev/ttyUSB0
Baud= 115200
SetVolume= 0
DialCommand= ATDT
FlowControl= Hardware(CRTSCTS)
[Dialer cdma]
Username=
Password=
Phone=#777
Stupid Mode= 1
Inherits= Modem0


One more thing, add nameserver to /etc/resolv.conf

[root@localhost ~]# more /etc/resolv.conf
# generated by NetworkManager, do not edit!
nameserver 202.138.103.100
nameserver 202.138.97.193
nameserver 127.0.0.1




Code:
# wvdial cdma
--> WvDial: Internet dialer version 1.56
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Modem initialized.
--> Sending: ATDT#777
--> Waiting for carrier.
ATDT#777
CONNECT 230400
--> Carrier detected. Starting PPP immediately.
--> Starting pppd at Sat Mar 3 22:55:20 2007
--> Pid of pppd: 24314
--> Using interface ppp0
--> local IP address 220.226.50.126
--> remote IP address 97.239.2.10
--> primary DNS address 202.138.103.100
--> secondary DNS address 202.138.96.2

Thats it ... you are now connected

U can now check ifconfig

[root@localhost ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:19:B9:81:69:DE
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:181361 errors:0 dropped:0 overruns:0 frame:0
TX packets:17751 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:19484952 (18.5 MiB) TX bytes:1573958 (1.5 MiB)
Interrupt:17

eth1 Link encap:Ethernet HWaddr 00:1B:77:81:44:FE
inet addr:172.16.13.81 Bcast:172.16.13.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:188454 errors:0 dropped:4871 overruns:0 frame:0
TX packets:21426 errors:0 dropped:0 overruns:0 carrier:685
collisions:0 txqueuelen:1000
RX bytes:16911463 (16.1 MiB) TX bytes:2128728 (2.0 MiB)
Interrupt:17 Base address:0xe000 Memory:efdff000-efdfffff

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3124 errors:0 dropped:0 overruns:0 frame:0
TX packets:3124 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:4018312 (3.8 MiB) TX bytes:4018312 (3.8 MiB)

ppp0 Link encap:Point-to-Point Protocol
inet addr:220.224.115.210 P-t-P:220.224.134.73 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:828 errors:1 dropped:0 overruns:0 frame:0
TX packets:1151 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:421748 (411.8 KiB) TX bytes:119826 (117.0 KiB)

ppp0 is ur n/w connection

Once you see above o/p of # ifconfig

Add default gateway as below
#route add default gw 220.224.134.73 netmask 0.0.0.0

Now We can see

[root@localhost ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
220.224.134.73 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
172.16.13.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
0.0.0.0 220.224.134.73 0.0.0.0 UG 0 0 0 ppp0

For more info
http://fedorahacks.com/node/7
http://www.linuxquestions.org/questions/linux-laptop-and-handheld-25/configuring-datacard-on-my-laptop-601597/
http://www.rimweb.in/forums/lofiversion/index.php/f4.html
http://www.linuxquestions.org/questions/linux-laptop-and-handheld-25/configuring-datacard-on-my-laptop-601597/