burgos - Developer IT

Execure a random command from .txt file?

- by Alberto Burgos

I have a Ubuntu server, and I'm trying to print a Twitter quote using the app "twidge". So I made a list of tweets on a .txt file. I want to print one tweet (per line) from that file and send it to Twitter via twidge (or what ever other method was possible). I can print a random phrase with shuf: shuf -n 1 /var/www/tweets.txt and it works. It sends me back one of the tweets, but, it does not send it to Twitter, even if the "in line" phrase is a command. i.e: twidge update "bla bla bla" It just prints on the screen, but don't send it to Twitter. I tried turning the .txt to .sh, but don't work... any idea? by the way, i want to use it with crontab, something like this: 15 * * * * shuf -n 1 /var/www/tweets.txt

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Stream sound card output to icecast2 via darkice

- by Alberto Burgos

I want to stream to icecast server via darkice, the default .cfg comes with /dev/dsp, witch is OSS, but there is no /dev/dsp in Ubuntu 12.10, so I tried hw:0,0, but it's just the microphone, and I would like to stream all of the sound-card output. Any ideas? cat /proc/asound/cards 0 [SB ]: HDA-Intel - HDA ATI SB HDA ATI SB at 0xf8700000 irq 16 cat /proc/asound/devices 1: : sequencer 2: [ 0- 0]: digital audio playback 3: [ 0- 0]: digital audio capture 4: [ 0- 0]: hardware dependent 5: [ 0] : control 33: : timer I tried following this post: How can I stream my soundcard output?

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iptables captive portal remove user

- by Burgos

I followed this guide: http://aryo.info/labs/captive-portal-using-php-and-iptables.html I am implementing captive portal using iptables. I've setup web server and iptables on linux router, and everything is working as it should. I can allow user to access internet with sudo iptables -I internet -t mangle -m mac --mac-source USER_MAC_ADDRESS -j RETURN and I can remove access with sudo iptables -D internet -t mangle -m mac --mac-source USER_MAC_ADDRESS -j RETURN However, on removal, user can still open last viewed page as many times he wants (if he restart his Ethernet adapter, future connections will be closed). On blog page I found a script /usr/sbin/conntrack -L \ |grep $1 \ |grep ESTAB \ |grep 'dport=80' \ |awk \ "{ system(\"conntrack -D --orig-src $1 --orig-dst \" \ substr(\$6,5) \" -p tcp --orig-port-src \" substr(\$7,7) \" \ --orig-port-dst 80\"); }" Which should remove their "redirection" connection track, as it is written, but when I execute that script, nothing happens - user still have access to that page. When I execute /usr/sbin/conntrack -L | grep USER_IP after executing script I am having nothing returned, so my questions: Is there anything else that can help me clean these track? Obviously - I can't reset nor mine, nor users network adapter.

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opening and viewing a file in php

- by Christian Burgos

how do i open/view for editing an uploaded file in php? i have tried this but it doesn't open the file. $my_file = 'file.txt'; $handle = fopen($my_file, 'r'); $data = fread($handle,filesize($my_file)); i've also tried this but it wont work. $my_file = 'file.txt'; $handle = fopen($my_file, 'w') or die('Cannot open file: '.$my_file); $data = 'This is the data'; fwrite($handle, $data); what i have in mind is like when you want to view an uploaded resume,documents or any other ms office files like .docx,.xls,.pptx and be able to edit them, save and close the said file. edit: latest tried code... <?php // Connects to your Database include "configdb.php"; //Retrieves data from MySQL $data = mysql_query("SELECT * FROM employees") or die(mysql_error()); //Puts it into an array while($info = mysql_fetch_array( $data )) { //Outputs the image and other data //Echo "<img src=localhost/uploadfile/images".$info['photo'] ."> "; Echo "Name: ".$info['name'] . " "; Echo "Email: ".$info['email'] . " "; Echo "Phone: ".$info['phone'] . " <hr>"; //$file=fopen("uploadfile/images/".$info['photo'],"r+"); $file=fopen("Applications/XAMPP/xamppfiles/htdocs/uploadfile/images/file.odt","r") or exit("unable to open file");; } ?> i am getting the error: Warning: fopen(Applications/XAMPP/xamppfiles/htdocs/uploadfile/images/file.odt): failed to open stream: No such file or directory in /Applications/XAMPP/xamppfiles/htdocs/uploadfile/view.php on line 17 unable to open file the file is in that folder, i don't know it wont find it.

Developer IT