Fast Share Your Files Using Python Script

If you were unaware, there is a command line switch for python that lets you the python library module as a script and I'm sharing a small trick on how you can easily share your files with other computers over LAN/Internet by running a python module that lets you run the tiny web server. Isn't it great when you don't have Samba?

Fire up the terminal, change to the desired directory you wish to share and type the following command:

python -m SimpleHTTPServer

Be cautious with the cases of characters of module 'SimpleHTTPServer' else you'll never find your mistake with this command :D

Once you've run the above command, the HTTP server will start to listen on the port 8000 (by default) so the other parties will just have to open up their favorite web browser and type the correct address followed with the colon and port 8000(eg. 192.168.1.21:8000)

I hope this proves useful sometimes. :)


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Stack-based Directory Switching For Easy Reversal

So how many times have you used the `cd` command repeatedly to go back and forth of two or more directories. Probably you are already familiar to the `cd -` command which lets you switch between the current and the previous directory. But, many times this current and previous directory switching restriction will not suffice and hence a better option in such case is to use the `pushd` command instead of `cd`.

For example, just use the `pushd somedirA`, `pushd somedirB`, ... and like that. Now if you need to switch back, you can just use `popd` command and you'll be switching back easily. The `pushd` command saves the current directory path and then cds to the supplied path.

If you dig more, you'll come to know about the -n and -N switches you can combine with these commands so I will let you explore on this. Also, you can use the `dirs` command to view the stack of directories. If you are some computer student or enthusiast, you have already gotten an idea from a famous data structure called stack. Anyway, I hope this comes handy sometimes like it does to me :)


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Fix "trying to overwrite '*', which is also in package *"

Today I was updating few stuffs in edubuntu and dpkg was continually throwing me the problem while trying to install kdelibs-data. The error read as "trying to overwrite 'A', which is also in package X" and the fix was pretty straightforward but still I thought it would help someone out there.

Below is the exact error I was getting while trying to install kdelibs5-data from the deb file.

dpkg: error processing /var/cache/apt/archives/
kdelibs5-data_4%3a4.4.5-0ubuntu1.2_all.deb (--unpack):
trying to overwrite '/usr/share/polkit-1/actions
/org.kde.kcontrol.kcmremotewidgets.policy', which is also in package kdebase-runtime-data 4:4.6.5-0ubuntu1

The fix was pretty simple. Add the --force-overwrite switch in the dpkg command as below:

dpkg -i --force-overwrite kdelibs5-data_4.4.5-0ubuntu1.2_all.deb

I hope this comes useful sometimes.


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Flash Punisher Plugin For Counter Strike Server [New Release]

Recently I wrote a small AMX Mod X plugin that kills the player who throws flashbangs in counter strike and this post provides the plugin and source code of the plugin for the download.

Why this plugin

Well there are probably few other flash bang punishment plugins already available for download but all I needed was a minimal plugin that would just kill the flashbanger and prevent the effect of the flashbang to other players.

At the first look, the plugin may sound stupid but we play a lot of aa_dima map and few players were continually throwing the flashbangs. There are several maps which are meant to be played by making use of shooting skills that the use of flashbangs. But some people never understand.

I chose to have death as the punishment because that would be the worst punishment any player would expect. And, they will surely be not throwing flashbangs in next rounds.

Download flash_kill.amxx

Or check the Github Repos of Flash Punisher.

Installation is similar to other plugins. Copy the flash_kill.amxx file to cstrike/addons/amxmodx/plugins/ and add a new line "flash_kill.amxx" (without quotes) in the cstrike/addons/amxmodx/configs/plugins.ini.

CVARS:
tg_flashpunish 0 - prevent the killing of player on throwing flashbang.
tg_flashpunish 1 - the plugin shows its effect i.e. the player dies on throwing flashbang.

I hope this plugin becomes useful to some of you guys. :)


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IP Address Based Restriction Using Htaccess File

Sometimes you need to restrict access to files in your webserver to certain IP address or IP range only. In such case, you can apply a simple .htaccess rule and this post provides an information on how to make IP based restriction Using .htaccess.

First, be sure to enable use of htaccess in apache in your distro.



An example of .htaccess file that will block requests from all IP addresses but the subnet of 192.168.0.0/16 is as below:

<limit GET>
order deny,allow
deny from all
allow from 192.168
</limit>

Similarly, an example of .htaccess file that will allow requests from all IP addresses but the subnet of 192.168.0.0/16 is as below:

<limit GET>
order allow,deny
allow from all
deny from 192.168
</limit>

You can also specify the individual IP addresses instead of the entire subnet according to your need. Also, note that there should be no space after the comma between allow,deny.

Once you create the .htaccess file, make sure you've provided proper permission to it.

samar@Techgaun:/var/www/samar$ chmod 0644 .htaccess

Once you have made the .htaccess file and provided the proper permission, you might need to restart the apache server(but per directory .htaccess does not require reloading the apache in most cases) so that new configurations will show an effect.

samar@Techgaun:/var/www/samar$ sudo service apache2 reload

I hope this comes handy :)


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NCell Introduces Ncell Sapati For Credit Based Recharge

Everytime ncell introduces a new service, it understands what its customer are looking for. Sometimes Recharging your phone becomes imposslible due to outreach of shop , sometime it may be late night or too early , reaching for the card sounds tough. But now ncell has extended it service by introducing Ncell sapati.

To get Ncell sapati of Rs. 20 as main balance, you will have to dial *9988#. You will be charged an extra amount of Rs. 2(Exclusive of VAT and additional taxes) while using this service.

More information is available through IVR by dialing 9980 or play the audio below to hear the full instruction.





This service will come handy lots of time to lots of customers so I welcome this service introduced by Ncell. :)


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How To Enable Use Of Htaccess In Apache In Ubuntu

This How To provides a detail on how to enable use of .htaccess file in apache in ubuntu and the similar flavors of linux distribution.

To enable use of .htaccess, you can edit the /etc/apache2/sites-available/default file. Search for the portion which contains the following lines or something similar to that(The bold line is almost always present):

<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
</Directory>

All you have to do is change the bold line above to:

<Directory /var/www/>
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
</Directory>

Now you will need to restart the apache service so that the effect of change in configuration takes place. Enter the following command to restart the apache service:

samar@Techgaun:~$ sudo service apache2 reload

Now your .htaccess files will start to work in ubuntu. :)


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Recover Deleted Files From An NTFS Volume Using Ntfsundelete

Ntfsundelete is a part of ntfsprogs, a suite of NTFS utilities based around a shared library. It lets us recover the deleted files from any NTFS volumes without making any changes in the NTFS volume itself.

Generally when a file is deleted from disks, it is some kind of pointer to the physical file that gets deleted and the actual content still remains in the disk unless it is overwritten by new files so it is possible to recover those files.

ntfsundelete has three modes of operation: scan, undelete and copy. By default, it will run in the scan mode which simply reads an NTFS volume and looks for the files that have been deleted.



To use ntfsundelete, you'll have to install the ntfsprogs suite with following command in ubuntu and debian-based distros:

samar@Techgaun:~$ sudo apt-get install ntfsprogs

You'll have to first figure out which drive you want to recover. A handy command for this is:

samar@Techgaun:~$ sudo fdisk -l

Once you know the NTFS volume you want to recover, you can first run the scan mode to list the filenames that can be recovered.

samar@Techgaun:~$ sudo ntfsundelete /dev/sda4

The optional -f switch can be specified for the forceful scanning. There is a nice percentage field which gives the information on how much of the file can be recovered. You can apply the time and percentage filters to scan specific files. For example, you can use the following command to search for the files which can be recovered 100%

samar@Techgaun:~$ sudo ntfsundelete -p 100 /dev/sda4

And, you can apply the time filter to list the files altered/deleted after the specified time. For example, following command will scan and list the files deleted in the last 14 days.

samar@Techgaun:~$ sudo ntfsundelete -p 100 -t 2d /dev/sda4

Other suffices you can use are d, w, m, y for days, weeks, months or years ago respectively.

Once you get the files to be recovered, you can use the -u switch to undelete or recover the files. An example of recovering files by pattern matching is as below:

samar@Techgaun:~$ sudo ntfsundelete -u -m *.jpg /dev/sda4

Similarly you can recover by providing inode or inodes range using the -i switch. You can get the inode values from the first column in the scan mode.

samar@Techgaun:~$ sudo ntfsundelete -u -i 161922 /dev/sda4

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