tutorial - HTML to PS/PDF converter

htmldoc is a powerful simple-to-use tool which converts HTML to Postscript, PDF, or indexed HTML output. It provides a graphical user interface for manual document conversion -- useful for tasks such producing printed manuals from web pages -- but it can also be used as a filter.

Installing from the command line (Fedora): yum install htmldoc
Installing using the graphical installer: Applications > Office/Productivity > htmldoc
Menu location after installation: Office > HTMLDOC
Command:
/usr/bin/htmldoc
website: http://www.htmldoc.org/



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source:http://linuxpoison.blogspot.com/2008/04/135781758012644.html

tutorial - Database explorer and query tool


CrunchyFrog is a database explorer and query tool for GNOME.

Currently PostgreSQL, MySQL, Oracle, SQLite3 databases and LDAP servers are supported for browsing and querying. More databases can be added using the plugin system.

This application requires GTK+ version 2.12.x. Other dependencies include:
For a (almost) complete list of dependencies see http://code.google.com/p/crunchyfrog/wiki/Requirements

Download : here


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source:http://linuxpoison.blogspot.com/2008/04/13578175802069.html

tutorial - How To Disable a User Account in Linux

Linux systems use /etc/shadow to store the encrypted user passwords. The quickest way to disable a user is to alter is password stored in /etc/shadow. Normally an active user account will have one line in /etc/shadow that will look like:

user:$1$eFd7EIOg$EeCk6XgKktWSUgi2pGUpk.:13852:0:99999:7:::

where the second field is the encrypted password.

If we replace the password with “*” or “!” this will make the account unusable, and it will mean that no login is permitted for the user: user:*:13852:0:99999:7:::

This method has the disadvantage that the user password will be lost (unless saved somewhere, etc.) in the case we will want to re-enable it again later. From this point of view a much better method is to use the passwd command to lock the account: passwd -l

and the output of the successful change will be “Password changed.”. This actually just changes the shadow file and adds “!” in front of the user password:

user:!$1$eFd7EIOg$EeCk6XgKktWSUgi2pGUpk.:13852:0:99999:7:::

Of course we could do this manually ourselves also if we want ;-).

If you will ever need to re-enable the account just unlock it: passwd -u
or just remove manually the “!” character from the user’s password line in /etc/shadow.



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source:http://linuxpoison.blogspot.com/2008/04/135781758011558.html

tutorial - How to find - Size of a directory & Free disk space

‘du’ - Finding the size of a directory

$ du
Typing the above at the prompt gives you a list of directories that exist in the current directory along with their sizes. The last line of the output gives you the total size of the current directory including its subdirectories. The size given includes the sizes of the files and the directories that exist in the current directory as well as all of its subdirectories. Note that by default the sizes given are in kilobytes.

$ du /home/nikesh
The above command would give you the directory size of the directory /home/nikesh

$ du -h
This command gives you a better output than the default one. The option ‘-h’ stands for human readable format. So the sizes of the files / directories are this time suffixed with a ‘k’ if its kilobytes and ‘M’ if its Megabytes and ‘G’ if its Gigabytes.

$ du -ah
This command would display in its output, not only the directories but also all the files that are present in the current directory. Note that ‘du’ always counts all files and directories while giving the final size in the last line. But the ‘-a’ displays the filenames along with the directory names in the output. ‘-h’ is once again human readable format.

$ du -c
This gives you a grand total as the last line of the output. So if your directory occupies 30MB the last 2 lines of the output would be

30M .
30M total

The first line would be the default last line of the ‘du’ output indicating the total size of the directory and another line displaying the same size, followed by the string ‘total‘. This is helpful in case you this command along with the grep command to only display the final total size of a directory as shown below.

$ du -ch | grep total
This would have only one line in its output that displays the total size of the current directory including all the subdirectories.

$ du -s
This displays a summary of the directory size. It is the simplest way to know the total size of the current directory.

$ du -S
This would display the size of the current directory excluding the size of the subdirectories that exist within that directory. So it basically shows you the total size of all the files that exist in the current directory.

$ du –exculde=mp3
The above command would display the size of the current directory along with all its subdirectories, but it would exclude all the files having the given pattern present in their filenames. Thus in the above case if there happens to be any mp3 files within the current directory or any of its subdirectories, their size would not be included while calculating the total directory size.

-
‘df’ - finding the disk free space / disk usage

$ df
Typing the above, outputs a table consisting of 6 columns. All the columns are very easy to understand. Remember that the ‘Size’, ‘Used’ and ‘Avail’ columns use kilobytes as the unit. The ‘Use%’ column shows the usage as a percentage which is also very useful.

$ df -h
Displays the same output as the previous command but the ‘-h’ indicates human readable format. Hence instead of kilobytes as the unit the output would have ‘M’ for Megabytes and ‘G’ for Gigabytes.


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source:http://linuxpoison.blogspot.com/2008/04/13578175809103.html

tutorial - HowTo Allow windows updates through squid

Add the following to your squid.conf, It 'MUST' be added near the top before any ACL that require authentication.

acl windowsupdate dstdomain windowsupdate.microsoft.com
acl windowsupdate dstdomain .update.microsoft.com
acl windowsupdate dstdomain download.windowsupdate.com
acl windowsupdate dstdomain redir.metaservices.microsoft.com
acl windowsupdate dstdomain images.metaservices.microsoft.com
acl windowsupdate dstdomain c.microsoft.com
acl windowsupdate dstdomain www.download.windowsupdate.com
acl windowsupdate dstdomain wustat.windows.com
acl windowsupdate dstdomain crl.microsoft.com

acl CONNECT method CONNECT
acl wuCONNECT dstdomain www.update.microsoft.com

http_access allow CONNECT wuCONNECT localnet
http_access allow windowsupdate localnet

The above config is also useful for other automatic update sites such as Anti-Virus vendors, just add their domains to the acl.


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source:http://linuxpoison.blogspot.com/2008/04/135781758016367.html

tutorial - Get Hostname from IP address

To get the hostname from the IP address.
The simplest way is to use the “host” utility provided by Gnu/Linux. Just run…

poison:~ # host 64.233.187.99
99.187.233.64.in-addr.arpa domain name pointer jc-in-f99.google.com.
poison:~ #


This will query the name server and provide you with the hostname of the IP address.By default it will query the nameserver listed in the /etc/resolv.conf file.


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source:http://linuxpoison.blogspot.com/2008/04/135781758019216.html

tutorial - Working with Archives

Working with tar Archives

To create an archive of a directory tree with tar, you can do something like this:

nikesh@poison:~/temp> tar -cf directory.tar directory/
nikesh@poison:~/temp> ls
directory directory.tar

The preceding command creates (c), verbosely (v), the file (f) directory.tar, which is a tar archive, by running tar on directory.

If you want to list the files in the archive:

nikesh@poison:~/temp> tar -tf directory.tar
directory/
directory/afile
directory/bfile

Here the option lists the contents of the file (f) directory.tar.

Using gzip Compression with tar

If you want to create a gzipped tar archive (the -z option implies compression, while the c means create):

nikesh@poison:~/temp> tar -zcf directory.tgz directory/
nikesh@poison:~/temp> ls
directory directory.tgz

The original is still there, unlike when we compressed a single file with gzip. (Note that .tgz and .tar.gz are used interchangeably for filenames of gzipped tar archives.)

To list the files in this case, use the following:

nikesh@poison:~/temp> tar -tzf directory.tgz
directory/
directory/afile
directory/bfile

Using bzip2 Compression with tar

If you want to use compression with bzip2 instead of gzip, the required option is -j rather than -z:

nikesh@poison:~/temp> tar -jcf directory.tar.bz2 directory/
nikesh@poison:~/temp> ls
directory directory.tar.bz2

nikesh@poison:~/temp> tar -jtf directory.tar.bz2
directory/
directory/afile
directory/bfile

Unpacking tar Archives

To unpack a tar archive, you need to use the -x option (for extract):

nikesh@poison:~/temp> tar -xvf directory.tar
or
nikesh@poison:~/temp> tar -zxvf directory.tgz
or
nikesh@poison:~/temp> tar -jxvf directory.tar.bz2

Here the options have the following meanings:
The -x option to tar means extract.
The z option implies that you are uncompressing a tar archive where gzip compression has been used.
The joption is needed if you are extracting an archive where bzip2 compression has been used.

Working with zip Archives

The common zip archive format (associated with the DOS and Windows programs PKZIP and WinZip among others) is supported on Linux. To unzip a zip archive, simply do the following:

nikesh@poison:~/temp> unzip zipfile.zip

To create a zip archive of the current directory:

nikesh@poison:~/temp> zip -r ~/newzip.zip .

This will recursively zip up the current directory and create the zip file newzip.zip in you’re your home directory (~).
The program zipinfo will give a listing and information about compression ratios:

nikesh@poison:~/temp> zipinfo zipfile.zip



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source:http://linuxpoison.blogspot.com/2008/04/13578175805616.html

tutorial - Great Comment on Linux Vs Windows

Some days back I was reading an article on OpenSuse 10.2 review (Linux Vs Windows) and fortunately I came across a great comments on that article …..

read below …..

Shaking my head at you guys (gals?)! 8^)

I’ve been using linux on my main computer for 5+ years, and on my webservers for over 10. Actually started with SUSE desktop (well tried Caldera 2.1 waaay back when UGH!), then went to Fedora to get the “latest & greatest.” (They usually had bleeding edge software before other distros… Mozilla, etc.). I’ve had to purchase Windows due to my job. Picked up Vista, couldn’t upgrade from ME, so got the XP upgrade instead.

Tried Ubuntu on a friends puter, liked it so tried it on mine. All good except could not make on the motherboard nVidia Ge6100 work. Had read some reviews about SUSE, so d/led it. Setting up dual boot. Windows & Linux can read FAT32, so decided to set up my box like this. The 1st 200Gb drive as NTFS XP, 200Gb #2 as linux, 400Gb as FAT32 shared between the 2 for docs, pics, music and such.

Has anyone installed Windoze lately or just purchased pre-installed?
It took about 1 1/2 hours just to format 200Gb!!! So don’t get picky about 30 or 40 minutes to install a linux distro!
And it only formatted 128Gb, so had to use System Commander to stretch it out to the full 200Gb!

Rebooted into my newly installed XP.
NO SOUND
NO INTERNET
NO PRINTER
Call ISP. duh! I needed to install the drivers off the CD that came with my motherboard. I’ve been installing Linux for so long, I forgot about that crap.
Everything just works from linux install. (Except nVidia problem mentioned earlier).
Rounded up my driver CDs and got all that working.
Can anyone explain to me why after paying $100USD for Windoze upgrade it could not do something my FREE linux programs do like install drivers for motherboards and printers???

So now I have a great OS system installed on my box… NOT!
NO SOFTWARE!!!
Installed Office 2003, an old copy of CorelDraw I had, and some other webmaster programs, like ftp, ssh, 1stPage, etc. (You know, programs you get installed for free when using linux…)
Shelled out $40USD for Windows Live virus etc protector.
If I wasn’t dual booting, I’d still be looking around for buggy shareware to do simple things us Linux geeks just take for granted… (burn CDs, play games, make to do lists, bitTorrent, IM, etc.)

In all, it took me about 8 hours to get xp up and running close to the way I wanted.

Installed SUSE, complete with HUGE software stash, did complete update, changed a few things around like I wanted, and it only took me about 1 1/2 hours. That included formatting 3 times as much hard drive.

Oh yeah, I won’t go into trying to get FAT32 working on the large hard drive too much. Checked MS knowledge base. An older one said to go into device manager to format large hard drives. A newer article says, xp can’t do it, use your 95, 98 or ME install disk. HUH? Xp won’t see FAT32 formatted by System Commander, Linux, or DOS command line format. My conspiracy theory is that they knew Linux can read & write to it so they took it out of their OS. Shaking my head at Billie…


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source:http://linuxpoison.blogspot.com/2008/04/135781758016770.html

tutorial - HowTo Forward the mail to many addresses using procmail

We just need to add more addresses to the action line:

:0
* ^Subject: This is urgent$ ! first@one.com second@two.net third@three.org

If you have a large list of recipients, you might prefer to store the addresses in an external file you can edit without mucking with your Procmail filters:

:0
* ^Subject: This is urgent$
! `cat addresses.txt`


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source:http://linuxpoison.blogspot.com/2008/04/13578175804164.html

tutorial - Starting Qmail through Xinetd

Here is the entry info for starting Qmail through Xinetd

service smtp
{
flags = REUSE NAMEINARGS
socket_type = stream
protocol = tcp
wait = no
user = qmaild
server = /usr/sbin/tcpd
server_args = /var/qmail/bin/tcp-env -R /var/qmail/bin/qmail-smtpd
}


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2008/12/135781758018656.html

tutorial - Configure Apache with with mod_deflate

mod_deflate is included in the Apache 2.0.x source package, and compiling it in is a simple matter of adding it to the configure command.

./configure --enable-modules=all --enable-mods-shared=all --enable-deflate

When the server is made and installed, the GZIP-encoding of documents can be enabled in one of two ways: explicit exclusion of files by extension; or by explicit inclusion of files by MIME type. These methods are specified in the httpd.conf file.

Explicit Exclusion

SetOutputFilter DEFLATE
DeflateFilterNote ratio
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary

Explicit Inclusion

DeflateFilterNote ratio
AddOutputFilterByType DEFLATE text/*
AddOutputFilterByType DEFLATE application/ms*
application/vnd* application/postscript

Both methods enable the automatic GZIP-encoding of all MIME-types, except image and PDF files. Image files and PDF files are excluded as they are already in a highly compressed format. In fact, PDFs become unreadable by Adobe's Acrobat Reader if they are further compressed by mod_deflate or mod_gzip.


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2008/04/135781758015586.html

tutorial - How To convert flv to avi Using FFmpeg

Move to the path where you have your video files:
cd /path/where/is/the/video

Run ffmpeg command with -i for input and output.avi is the output file in avi or mpg:
# ffmpeg -i input.flv output.avi

What is FFmpeg?
"FFmpeg is a collection of software libraries that can record, convert and stream digital audio and video in numerous formats. It includes libavcodec, an audio/video codec library used by several other projects, and libavformat, an audio/video container mux and demux library."


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2008/04/135781758019498.html

tutorial - HowTo to get the lists of installed package/software on Fedora/RedHat/CentoOS/OpenSuse

You can list the packages that are installed on a RedHat or CentOS or Fedora or OpenSuse system, running this commands:

# rpm -qa

You can also redirect the list of packages to a file by using this command

# rpm -qa > /root/list.txt

You should remove packages you dont use for security reasons.


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2008/04/13578175806977.html

tutorial - How TO install/Configure APF (Advanced Policy Firewall) Firewall

Advanced Policy Firewall (APF) is an iptables(netfilter) based firewall system designed around the essential needs of today's Internet deployed servers and the unique needs of custom deployed Linux installations. The configuration of APF is designed to be very informative and present the user with an easy to follow process, from top to bottom of the configuration file. The management of APF on a day-to-day basis is conducted from the command line with the 'apf' command, which includes detailed usage information and all the features one would expect from a current and forward thinking firewall solution.

Login to your server as root, then:
# Download -- http://www.r-fx.ca/downloads/apf-current.tar.gz
# tar -xvzf apf-current.tar.gz
# rm -f apf-current.tar.gz
# cd apf-*
# ./install.sh

Edit conf.apf
# cd /etc/apf
# vi conf.apf

Common ingress (inbound) TCP IG_TCP_CPORTS="20,21,22,25,53,80,110,143,443,465,993,995,2082,2083,2086,2087,2095,2096,3306,10000,35000_35999"

Common ingress (inbound) UDP
IG_UDP_CPORTS="20,21,53,1040"

Exit and save and then restart apf:
# service apf start

If APF is functioning fine, edit the conf.apf
# vi conf.apf

Set the DEVM parameter to 0DEVM="0"

Now you can Restart APF, and is done:
# service apf restart

Configure APF to start at boot
# chkconfig --add apf
# chkconfig --level 345 apf on

Summary of features:
- detailed and well commented configuration file
- granular inbound and outbound network filtering
- user id based outbound network filtering
- application based network filtering
- trust based rule files with an optional advanced syntax
- global trust system where rules can be downloaded from a central management server
- reactive address blocking (RAB), next generation in-line intrusion prevention
- debug mode provided for testing new features and configuration setups
- fast load feature that allows for 1000+ rules to load in under 1 second
- inbound and outbound network interfaces can be independently configured
- global tcp/udp port & icmp type filtering with multiple methods of executing filters (drop, reject, prohibit)
- configurable policies for each ip on the system with convenience variables to import settings
- packet flow rate limiting that prevents abuse on the most widely abused protocol, icmp
- prerouting and postrouting rules for optimal network performance
- dshield.org block list support to ban networks exhibiting suspicious activity
- spamhaus Don't Route Or Peer List support to ban known "hijacked zombie" IP blocks
- any number of additional interfaces may be configured as firewalled (untrusted) or trusted (not firewalled)
- additional firewalled interfaces can have there own unique firewall policies applied
- intelligent route verification to prevent embarrassing configuration errors
- advanced packet sanity checks to make sure traffic coming and going meets the strictest of standards
- filter attacks such as fragmented UDP, port zero floods, stuffed routing, arp poisoning and more
- configurable type of service options to dictate the priority of different types of network traffic
- intelligent default settings to meet every day server setups
- dynamic configuration of your servers local DNS revolvers into the firewall
- optional filtering of common p2p applications
- optional filtering of private & reserved IP address space
- optional implicit blocks of the ident service
- configurable connection tracking settings to scale the firewall to the size of your network
- configurable kernel hooks (ties) to harden the system further to syn-flood attacks & routing abuses
- advanced network control such as explicit congestion notification and overflow control
- special chains that are aware of the state of FTP DATA and SSH connections to prevent client side issues
- control over the rate of logged events, want only 30 filter events a minute? 300 a minute? - you are the boss
- logging subsystem that allows for logging data to user space programs or standard syslog files
- logging that details every rule added and a comprehensive set of error checks to prevent config errors
- if you are familiar with netfilter you can create your own rules in any of the policy files
- pluggable and ready advanced use of QoS algorithms provided by the Linux
- 3rd party add-on projects that compliment APF features


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2008/04/13578175801292.html

tutorial - How To disable telnet service

Login as root to your server:

Edit /etc/xinetd.d/telnet
# vi /etc/xinetd.d/telnet

Search for: "disable = no"
Change it to: disable = yes

Save and Exit

Restart xinted
# /etc/rc.d/init.d/xinetd restart


Free, facebook, tips, Links, blogging, Downloads, Google, facebookTips, money, news, apps, Social, Media, Website, Tricks, games, Android, software, PIctures, Internet, Security, Web, codes, Review, bloggers, SAMSUNG, Worldwide, Contest, Exitic, Phones, facebookTricks, hacking, London, Olympics, SEO, Youtube, iOS, Adsense, gadgets, iPHONE, widgets, Doodle, twitter, video, Deals, technology, Aircel, Airtel, iPAD, Angry, Birds, BSNL, TechLife, GMAIL, Idea, Microsoft, SmartPhones, Stress, Buster, Windows, Yahoo, Infolinks, Nokia, Scam, Uninor, browsers, Amazon, Euro, CUP, Chat, IDM, JOBS, Modem, Music, Reliance, Results, SSC, Tata, Docomo, bing, freebie, mobile, placements, AIEEE, AlertPay, Chrome, College, Competetive, Exam, Dehradun, Extension, FireFox, GPRS, HTC, IMPACT, Info, MTS, Mark, Zukerberg, Paypal, Promotional, Post, Torrent, UTU, Unlocking, VodaFone, Wall, Paper, apple, books, engineering, iCAR, iTunes, pinterest, rovio, AVG, Admit, Card, Adobe, Affiliate, Marketing, Akhilesh, Amul, Girl, BlackBerry, ChromeBook, Clixsense, Coupon, Digitallife, Discovery, Emoticons, Festival, GATE, GIMP, Income, Tax, International, JSS, JailBreaking, Kindle, Linux, Local, MAX, PAYNE, Mac, Mango, Memory, Speed, Nexus, Online, Shopping, Raakhi, Report, Rising, Stars, Sample, Science, Sony, Syllabus, TabletBooK, Teamviewer, Templates, Dark, Knight, Rises, USA, UPMT, Virgin, Xperia, ZTE, challan, counselling, course, btech, funny, iMOVE, registration

source:http://linuxpoison.blogspot.com/2008/04/13578175809312.html

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