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copied!<p>First of all I am showing the PHP code ....</p> <pre><code><?php echo ("hello"); echo exec("sendip -v -p ipv6 -6s 2001::100 -p tcp -ts 21 -td 21 2001::200 2> &1"); echo ("hi"); ?> </code></pre> <p>When I entered the command through linux command line it is working fine.The command is sending a tcp ipv6 packet on 2001::200 machine from 2001::100. </p> <pre><code>[root@udit-pc]# sendip -v -p ipv6 -6s 2001::100 -p tcp -ts 21 -td 21 2001::200 > /dev/null & /* (-v for verbose) */ </code></pre> <p>Output of above command ... </p> <pre><code> Added 34 options Initializing module ipv6 Initializing module tcp Finalizing module tcp Finalizing module ipv6 Final packet data: 60 00 00 00 `... /* here other packet contents gets printed */ 7D 62 00 00 }b.. 61 62 63 64 abcd Sent 64 bytes to 2001::200 Freeing module ipv6 Freeing module tcp </code></pre> <p>When I execute the php script through command line...</p> <pre><code>[root@udit-pc]# php test.php Freeing module tcp </code></pre> <p>hellohi gets printed and packet arrived at 2001::200.</p> <p>But problem arise when I try to run php script through browser...</p> <pre><code> http:://localhost/test.php </code></pre> <p>hellohi gets printed but packet does not arrive at other machine.</p> <pre><code> sh: sendip: command not found </code></pre> <p>Also in both case packet contents are not printed at terminal although using verbose option but when directly using command verbose option works fine.</p> <p>I tried with many things although I do not think they would help like......</p> <ol> <li><p>I added /usr/local/lib and usr/local/bin to PATH variable but no benefit.</p></li> <li><p>chmod +s /usr/local/bin/sendip .Sticky bit set but again no benefit.</p></li> <li><p>paste the /usr/local/bin/sendip itself in /var/www/html folder although I have changed the PATH variable but as i said i m just using hit n trial getting no clue.....</p></li> </ol> <p>There are some output snapshots which may further help ....</p> <pre><code>[root@cc html]# echo $PATH /usr/lib/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin: /usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin: /usr/X11R6/bin:/root/bin:/usr/local/lib [root@cc html]# locate sendip ..... /usr/local/bin/sendip /usr/local/lib/sendip ..... [root@cc bin]# chmod +s sendip [root@cc bin]# ls -l sendip -rwsrwsrwx 1 apache apache 41071 Sep 26 19:41 sendip [root@cc bin]# cd /usr/local/lib/ [root@cc lib]# ls -ld sendip drwxrwxrwx 2 root root 4096 Sep 28 22:48 sendip [root@cc lib]# chmod +s sendip [root@cc lib]# ls -ld sendip drwsrwsrwx 2 root root 4096 Sep 28 22:48 sendip </code></pre> <p>When file contents are changed .......</p> <pre><code> <?php echo exec("/usr/bin/sendip ........ 2 > &1"); ?> </code></pre> <p>Then oputput is : </p> <pre><code> [root@cc html]# php test.php Freeing module tcp[root@cc html]# </code></pre> <p>On browser.... No error gets printed but packet still not arrived.</p> <p>I am stuck in between.Please suggest me what else should I rather try ??????/ </p>

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