By using Follow code, it is possible to show error message if java run-time not installed in client mechine
<!DOCTYPE html><html><body><script>if (navigator.javaEnabled()) { //Java is enabled}else{document.write("Error:Java is Disabled or Java Not Installed<br>Download and Insatall...
Saturday, 29 September 2012
Wednesday, 26 September 2012
Solution SSH Connection Refused Problem in Linux - Backtrack
If your system unable to SSH from another System means
1. SSH server Not Running. So start SSH Server
To start SSH server goto Applications->Backtrack->Services->SSHD->sshd start
If It is Running, and unable to SSH...
Monday, 24 September 2012
Solution to Endianness Problems in Linux Networking
There are two types of Endians
1.Big-Endian
2.Little-Endian
In real world Networks generally use Big-Endian
Ethernet is Big-endian
IP's byte order also is Big-endian
A common solution to the endianness problem associated with networking can be handled by below functions
htons(): Convert 16-bit unsigned value from...
Saturday, 22 September 2012
Send ajax post which contains '&' to PHP
Send '&' through Ajax Post method to PHP File
var strnew = encodeURIComponent("My & My");
Now At PHP Side no need to any thing
If problem in PHP Side reading data try below functions
urlencode()
urldecode()...
Friday, 21 September 2012
Turning off spell check on Komodo Edit ( red lines )
To turn off red underlines (looks like Spell Check Problem) under Code in Komodo Edit, follow below steps
step1- goto Edit->Preferences
step2- In Preferences goto Syntax Checking
step3- turn off Enable checking of mixed end-of-lines (EOL) Characters...
Find string with in another string in PHP
By using Below Code it is possible to found that whether a string has searching String
<?php
$str = "Hi Me Find";
$find = "Me";
if(sizeof(explode($find,$str))>1)
{
echo "Me Found";
}
else
{
echo "Me Not Found";
}
?>...
Thursday, 20 September 2012
Change proxy in linux through commands
Run below Commands as root in Linux terminal
[root@xyz~]# export http_proxy='http://12.12.12.12:3128/'
Check Proxy
[root@xyz~]# echo $http_proxy
http://12.12.12.12:3128/
...
Display errors in PHP
Add below two lines to your PHP file to display errors
error_reporting(E_ALL);
ini_set('display_errors', '1');
Example:
<?php
error_reporting(E_ALL);
ini_set('display_errors', '1');
//remaining code
.............
.............
.............
?>...
Solution How replace slach in PHP
You can replace '\' with '/' and '/' with '\' in PHP
Example
replace \ with /
echo str_replace('\\','/','Hi\Mi');
output: Hi/Mi
replace / with \
echo str_replace('/','\\','Hi/Mi');
output: Hi\...
PHP equivalent for unescape()
urlencode() and urldecode() can be used
Examples:
urlencode()
echo urlencode("Hi+Me");
output: Hi%2BMe
urldecode()
echo urldecode("Hi+Me");
output: Hi ...
Solution to getVideoRatingInfo() returning array in PHP youtube API
If you are using PHP for Youtube API then you may face problem of getVideoRatingInfo() returning array
Problem
echo "Rating: ".$videoEntry->getVideoRatingInfo();
output: Array
Solution
$a = array();
$a = $videoEntry->getVideoRatingInfo();
echo "Rating: " . $a['average'] . "\n";
output:3.5 (example)...
Steps to Install MYPLC successfully with out any problems
Below are the steps to install MYPLC ( planet-lab ) With out any problems
Step1 :
Download and Install Fedora 12
Download Fedora Linux 12 CD 32 bit i386 (694M)
Download Fedora Linux 12 CD 64 bit (698M)
Step2 :
After Install
yum update
Step3 :
Add myplc repo
[root@xyz~]# cd /etc/yum.repos.d/
[root@xyz yum.repos.d]#...
Wednesday, 19 September 2012
Disable or Turnoff IPTables ( Firewall ) in Linux
Below Steps show how to disable IPTABLES ( Firewall ) in Linux
Check IPTABLES are running
[root@xyz ~]# service iptables status
Table: mangle
Chain PREROUTING (policy ACCEPT 1169 packets, 809K bytes)
num pkts bytes target prot opt in out source ...
Disabling SELINUX in Fedora
Below steps show how to disable SELINUX
To test SeLinux is running or not
[root@center /]# selinuxenabled && echo enabled || echo disabled
enabled
So SELINUX is Enabled
To stop temporary
[root@xyz~] sudo setenforce 0
To stop SELINUX permanently
[root@center /]# vim /etc/selinux/config
#And change
SELINUX=enforcing
to
SELINUX=disabled
Save...
Adding Repo file in Fedora - example myplc repo
Below Steps will guide how to add repo file and how to install software
[root@xyz~]# cd /etc/yum.repos.d/
[root@xyz yum.repos.d]# vim myplc.repo
#Add Following Lines to myplc.repo
[myplc]
name= MyPLC
baseurl=http://build.onelab.eu/5.0/rc22/onelab--5.0-rc22-f12-32/RPMS
enabled=1
gpgcheck=0
[root@xyz yum.repos.d]# yum...
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