If you have running skype in your system and you now try to install web server or a program that need to use HTTP port 80 or HTTPS port 443, then there possibly an error message saying that the port 80 or 443 has been in used or occupied by another application. Though you don't have currently installed any web server like Apache or IIS (Microsoft Internet Information Service).
So you need to investigate which program is using/opening/listening on port 80 or 443. In the post, How to check or identify which process is listening to port 80 in windows it is clearly discussed who you can know which process listening on which port. So you can know the process name from that post.
Now our concern is about skype. Skype allows users to use port 80 and 443 as an alternatives for incoming connections. Skype uses port 80 and 443 to allow Skype behind firewall to connect to peer or accept incoming connection from peers.
Only one program can open/use/listen one port at a time. So if skype uses port 80 other program will not be able to use it. Skype uses port 80 and port 443 (for SSL HTTP connection) and thus prevent other applications which require such port from working properly. So to make important program to work like web server we need to disable skype to use port 80 and port 443. Also, leaving the port 80 and 443 opens and listening also has security risk where the port can be scanned by malicious virus or hacker to launch attack or infection.
If you want to use skype and also web sever then you must turn off and disable Skype usage of and listening on port 80 and port 443. following is the steps to do this.
1) Open the Skype window.
2) Click on Tools menu.
3) Select Options.
4) Click on Advanced tab.
5) Go to Connection sub-tab.
6) Untick or uncheck the check box for "Use port 80 and 443 as an alternatives for incoming connections option."
7) Click on Save button and then restart Skype to make the change effective.
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Tuesday, July 21, 2009
How to include a php file inside smarty template
Well, many one of you heard about smarty template. In simple way we can say, Smarty template makes your PHP scripts independent of the layout.
While working with smarty template you may need to run a php code from the smarty template. Smarty always give the flexibility to do display code simply as a text as well as to execute php code.
Let's assume we have just installed smarty.
-You will see under Smarty>libs folder the main smarty class php file named Smarty.class.php and we need to make instance of Smarty class to use it.
-You can see sample code under Smarty>demo.
-And the template resides under Smarty>demo>templates.
Now we will execute php script named welcome.php from template named welcome.tpl
My welcome.php contains,
<?php
echo "Welcome to arjudba world.";
?>
and is saved under Smarty>demo.
My welcome.tpl contains,
{include_php file="welcome.php"}
and is saved under Smarty>demo>temaplates. Note that we can give full path here. Like {include file="include($_SERVER['DOCUMENT_ROOT'].'/includes/welcome.php');"}
Now from a php file we need to call the template file welcome.tpl and eventually template file will call welcome.php file. Let's name this php file as Smarty/display.php which contains,
<?php
require '../libs/Smarty.class.php';
$smarty = new Smarty;
$smarty->compile_check = true;
$smarty->debugging = true;
$smarty->display('welcome.tpl');
?>
Now in browser if you run for example on machine http://localhost/smarty/demo/display.php it will display,
Welcome to arjudba world.
And you are done. From welcome.tpl you ran welcome.php script.
I have shown a simple way above about how to run php script from template. There are other ways to do the job. Like in the template file writing as,
{php}
include("welcome.php");
{/php}
Related Documents
Datatypes in Php
Integer and floating point number in Php
Variables in PHP
Magic constants in php
Boolean datatype in Php
While working with smarty template you may need to run a php code from the smarty template. Smarty always give the flexibility to do display code simply as a text as well as to execute php code.
Let's assume we have just installed smarty.
-You will see under Smarty>libs folder the main smarty class php file named Smarty.class.php and we need to make instance of Smarty class to use it.
-You can see sample code under Smarty>demo.
-And the template resides under Smarty>demo>templates.
Now we will execute php script named welcome.php from template named welcome.tpl
My welcome.php contains,
<?php
echo "Welcome to arjudba world.";
?>
and is saved under Smarty>demo.
My welcome.tpl contains,
{include_php file="welcome.php"}
and is saved under Smarty>demo>temaplates. Note that we can give full path here. Like {include file="include($_SERVER['DOCUMENT_ROOT'].'/includes/welcome.php');"}
Now from a php file we need to call the template file welcome.tpl and eventually template file will call welcome.php file. Let's name this php file as Smarty/display.php which contains,
<?php
require '../libs/Smarty.class.php';
$smarty = new Smarty;
$smarty->compile_check = true;
$smarty->debugging = true;
$smarty->display('welcome.tpl');
?>
Now in browser if you run for example on machine http://localhost/smarty/demo/display.php it will display,
Welcome to arjudba world.
And you are done. From welcome.tpl you ran welcome.php script.
I have shown a simple way above about how to run php script from template. There are other ways to do the job. Like in the template file writing as,
{php}
include("welcome.php");
{/php}
Related Documents
Datatypes in Php
Integer and floating point number in Php
Variables in PHP
Magic constants in php
Boolean datatype in Php
Monday, July 20, 2009
How to check or identify which process is listening to port 80 in windows
From yesterday, on my computer I could not start my apache service. From the XAMPP Control Panel Application whenever I start Apache it fails to start. I reinstalled apache several time but it could not help . In fact after installing Apache HTTPD web server or Microsoft IIS Internet Information Services web server, or any other application software or service and daemon that requires to open and listen to port 80 (HTTP) or port 443 (HTTPS SSL) it fails. So I consider myself to investigate about the program that is using port 80 or 443.
I am sure that a program is using port 80 or port 443 and restrict apache to use these port as I get following after installing Apache web server using XAMPP.
(OS 10052) Only one usage of each socket address (protocol/network address/port) is normally permitted. : make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
So, I need to identify the program which is listening to port 80 and kill that process or at least restrict that process to listen to port 80.
To following steps will help you to find the culprit one.
1)Open command prompt. You can do it by clicking your start menu, then select Run, type cmd in the Run box and hit enter.
2)I expect you will see command prompt here unless you have viruses in your computer that restrict to show. In the command prompt type,
>netstat -o -n -a | findstr 0.0:80
in order to determine the process ID which is using port 80.
or type,
>netstat -o -n -a | findstr 0.0:443
in order to determine the process ID which is listening to port 443.
or type,
>netstat -aon
in order to list all connection that is listening, established, starting, closing and all other states. As netstat -aon will list all connections so from that you need to manually search for line 0.0.0.0:80 or 0.0.0.0:443 to determine the process ID.
3)Determine the process ID which is listening to port 80 or 443.
A typical output from the above commands are,
From the above output we see process ID 4712 is the culprit one which is listening to port 80 and 443 and thus restrict web server to use them.
4)In this step find the process which has the Process ID 4712. You can simply follow http://arjudba.blogspot.com/2009/07/how-to-know-process-id-or-pid-on.html and bring task manager to display that process ID. From task manager Image Name determine the process name.
So now you can kill that process or still if you want to run that process first run you web server/apache and then run that program. In this way apache first will listen to port 80 and that program will not be able to use as it starts after web server.
Related Documents
I am sure that a program is using port 80 or port 443 and restrict apache to use these port as I get following after installing Apache web server using XAMPP.
(OS 10052) Only one usage of each socket address (protocol/network address/port) is normally permitted. : make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
So, I need to identify the program which is listening to port 80 and kill that process or at least restrict that process to listen to port 80.
To following steps will help you to find the culprit one.
1)Open command prompt. You can do it by clicking your start menu, then select Run, type cmd in the Run box and hit enter.
2)I expect you will see command prompt here unless you have viruses in your computer that restrict to show. In the command prompt type,
>netstat -o -n -a | findstr 0.0:80
in order to determine the process ID which is using port 80.
or type,
>netstat -o -n -a | findstr 0.0:443
in order to determine the process ID which is listening to port 443.
or type,
>netstat -aon
in order to list all connection that is listening, established, starting, closing and all other states. As netstat -aon will list all connections so from that you need to manually search for line 0.0.0.0:80 or 0.0.0.0:443 to determine the process ID.
3)Determine the process ID which is listening to port 80 or 443.
A typical output from the above commands are,
E:\Documents and Settings\Arju>netstat -o -n -a | findstr 0.0:80 TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4712 E:\Documents and Settings\Arju>netstat -o -n -a | findstr 0.0:443 TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 4712 UDP 0.0.0.0:443 *:* 316 E:\Documents and Settings\Arju>netstat -aon Active Connections Proto Local Address Foreign Address State PID TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4712 TCP 0.0.0.0:135 0.0.0.0:0 LISTENING 1324 TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 4712 TCP 0.0.0.0:3306 0.0.0.0:0 LISTENING 1920 TCP 0.0.0.0:5101 0.0.0.0:0 LISTENING 7636 TCP 0.0.0.0:17536 0.0.0.0:0 LISTENING 316 TCP 10.65.49.113:1175 118.160.238.122:80 ESTABLISHED 316 TCP 10.65.49.113:1451 209.85.137.125:5222 ESTABLISHED 1588 TCP 10.65.49.113:1561 66.102.9.83:80 CLOSE_WAIT 3436 TCP 10.65.49.113:1623 96.17.159.66:80 CLOSE_WAIT 1964 TCP 10.65.49.113:2659 216.10.192.112:80 CLOSE_WAIT 5164 TCP 10.65.49.113:2782 216.10.192.112:80 CLOSE_WAIT 3692 TCP 10.65.49.113:3084 74.125.87.83:80 ESTABLISHED 2736 TCP 10.65.49.113:3179 74.125.87.191:80 ESTABLISHED 2736 TCP 10.65.49.113:3180 74.125.87.83:80 ESTABLISHED 2736 TCP 10.65.49.113:3185 74.125.87.101:443 ESTABLISHED 5164 TCP 10.65.49.113:3187 74.125.87.147:80 ESTABLISHED 5164 TCP 10.65.49.113:3850 68.180.217.28:5050 ESTABLISHED 7636 TCP 10.65.49.113:3881 68.142.233.181:80 ESTABLISHED 7636 TCP 10.65.49.113:4837 207.46.125.86:1863 ESTABLISHED 320 TCP 127.0.0.1:1247 0.0.0.0:0 LISTENING 3692 TCP 127.0.0.1:1557 0.0.0.0:0 LISTENING 6172 TCP 127.0.0.1:1557 127.0.0.1:1558 ESTABLISHED 6172 TCP 127.0.0.1:1558 127.0.0.1:1557 ESTABLISHED 7928 TCP 127.0.0.1:1672 0.0.0.0:0 LISTENING 1532 TCP 127.0.0.1:1727 127.0.0.1:1728 ESTABLISHED 7636 TCP 127.0.0.1:1728 127.0.0.1:1727 ESTABLISHED 7636 TCP 127.0.0.1:1990 127.0.0.1:1991 ESTABLISHED 5164 TCP 127.0.0.1:1991 127.0.0.1:1990 ESTABLISHED 5164 TCP 127.0.0.1:1993 127.0.0.1:1994 ESTABLISHED 5164 TCP 127.0.0.1:1994 127.0.0.1:1993 ESTABLISHED 5164 UDP 0.0.0.0:443 *:* 316 UDP 0.0.0.0:17536 *:* 316 UDP 10.65.49.113:123 *:* 1364 UDP 10.65.49.113:1900 *:* 1500 UDP 127.0.0.1:123 *:* 1364 UDP 127.0.0.1:1025 *:* 1924 UDP 127.0.0.1:1171 *:* 316 UDP 127.0.0.1:1716 *:* 320 UDP 127.0.0.1:1730 *:* 7636 UDP 127.0.0.1:1900 *:* 1500 UDP 127.0.0.1:2993 *:* 1588 UDP 127.0.0.1:9877 *:* 1924 UDP 127.0.0.1:9977 *:* 1924 UDP 127.0.0.1:62976 *:* 1924
From the above output we see process ID 4712 is the culprit one which is listening to port 80 and 443 and thus restrict web server to use them.
4)In this step find the process which has the Process ID 4712. You can simply follow http://arjudba.blogspot.com/2009/07/how-to-know-process-id-or-pid-on.html and bring task manager to display that process ID. From task manager Image Name determine the process name.
So now you can kill that process or still if you want to run that process first run you web server/apache and then run that program. In this way apache first will listen to port 80 and that program will not be able to use as it starts after web server.
Related Documents
How to know process ID or PID on windows
Process Identifier or Process ID or PID is the unique ID of a process running on the system. With PID we can uniquely identify a process and can know about their characteristics.
On unix based system like linux, solaris, HP-UX with "ps" command we can easily identify each type of process and their PID. We can also grep the output for filtering. But for Windows operating system such as Windows 95, Windows 98, Windows 2000, Windows XP, Windows Vista, Windows Server 2003, Windows Server 2008 and Windows 7 there is no such utility or command.
In windows through GUI we can still see the process ID or PID of a process. This is sometime very essential to track a culprit process. It can be seen from Task Manager. To get Task Manager right click on empty area in the task bar and then you can select Task Manger. You can also get Task Manager window by clicking CTRL+ALT+DEL.
After opening task manager you will see there is no process ID or PID there by default. But you can see Processes tab there. Whenever you click on processes tab, process information is shown. By default option is Image Name(Process Name), User Name(the user under whom process is running), CPU(percentage of CPU usage) and Mem Usage(Total how many KB is allocated to the process).
To get Process ID,
- Click Processes tab.
- Click on View menu, then click on Select Columns.
- In the "Select Columns" or "Select Process Page Columns" dialog, check the checkbox for PID (Process Identifier), and click OK.
You will see PID is shown and you can easily track each process identifier.
Related Documents
On unix based system like linux, solaris, HP-UX with "ps" command we can easily identify each type of process and their PID. We can also grep the output for filtering. But for Windows operating system such as Windows 95, Windows 98, Windows 2000, Windows XP, Windows Vista, Windows Server 2003, Windows Server 2008 and Windows 7 there is no such utility or command.
In windows through GUI we can still see the process ID or PID of a process. This is sometime very essential to track a culprit process. It can be seen from Task Manager. To get Task Manager right click on empty area in the task bar and then you can select Task Manger. You can also get Task Manager window by clicking CTRL+ALT+DEL.
After opening task manager you will see there is no process ID or PID there by default. But you can see Processes tab there. Whenever you click on processes tab, process information is shown. By default option is Image Name(Process Name), User Name(the user under whom process is running), CPU(percentage of CPU usage) and Mem Usage(Total how many KB is allocated to the process).
To get Process ID,
- Click Processes tab.
- Click on View menu, then click on Select Columns.
- In the "Select Columns" or "Select Process Page Columns" dialog, check the checkbox for PID (Process Identifier), and click OK.
You will see PID is shown and you can easily track each process identifier.
Related Documents
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