Category Archives: WAMP Developer Server

Download Speed Limit and Throttling for Apache 2.4

Restricting download speeds is extremely easy with Apache 2.4, which now comes standard with mod_ratelimit (a very simple and straight-forward module).

Download limits can be set per:

  • Server (all websites)
  • VirtualHost (specific website)
  • URL
  • The download limit will be applied per download connection, restricting each download to a specific maximum speed.

    Load mod_ratelimit

    Add the loading of mod_ratelimit into Apache’s configuration.

    <IfVersion >= 2.4>
        LoadModule ratelimit_module modules/

    Limit Download Speed

    To limit download speed per URL in a specific website, open the website’s VirtualHost files (both the HTTP and SSL VH), and insert the rate limiting configuration inside the VirtualHost block.

    This example sets the limit to 350KB/s for all downloads under URL “/downloads”.

    <IfModule mod_ratelimit.c>
        <Location /downloads>
            SetOutputFilter RATE_LIMIT
            SetEnv rate-limit 350

    Save file(s), and restart Apache for configuration changes to take effect.

    Test Bandwidth Throttling

    Place a large file into the /downloads location, and attempt to download this file multiple times. Check the results -


    * This works best under IE, as Chrome will not download the same file multiple times at the same time.

    More Specific Limits

    Anything other then per connection limits require more comprehensive Apache modules such as mod_bw (docs) or mod_limitipconn (docs).

    *mod_security can also limit bandwidth, but I would not recommend it as it’s too complex to setup, use, and maintain.

    Also, according to the mod_ratelimit docs (well, the comments in the docs), you can dynamically adjust this rate limit per request, using PHP…

    Note that if you are using PHP, you can set rate-limit to 0 in httpd.conf (no limiting) and then dynamically set “rate-limit” env variable for each request in your PHP scripts, but you cannot use putenv() function for this. You must use apache_setenv() in order to make it work properly.

    This could allow you to create your own management script that tracks the use of, and allots, the download bandwidth.

Accessing Websites on a Local Network (LAN) Web Server

There are a number of different ways that local websites can be viewed from other computers (running Windows, Mac OS X, Linux) and mobile devices (iPads, iPhones, Android phones, etc), that are all connected within the same LAN (local network).

To get every LAN connected computer and mobile device to find and connect to a local website, you have these options:

Use the LAN IP of Server

Connect directly to the server via its LAN IP address, using that IP in the URL:

For this to work, the LAN IP address must be assigned as one of the website’s Domain Aliases, and all redirects from Aliases to the Primary Domain Name must be turned off.

Downside – as only 1 IP address is assigned per NIC (network card), only 1 website can be accessed.

Use the LAN host-name of Server

Connect to the server via its LAN host-name (computer name), using that host-name in the URL:

For this to work, the LAN host-name must be assigned as one of the website’s Domain Aliases, and all redirects from Aliases to the Primary Domain Name must be turned off.

Downside – as only 1 host-name (computer name) is assigned per computer, only 1 website can be accessed. Also, there might be issues with some non-Windows devices, such as the iPad, which either don’t inter-operate (work with) WINS and NetBIOS or require further configuration.

Use a LAN-wide Hosts file Set Up

Connect to the server by using LAN-wide (global) Hosts files…

This is done by editing every LAN systems’ Hosts file with entries that resolve each and every website’s domain-name and aliases to the LAN IP of the server: domain1.alias1 domain1.alias2 domain2.alias1 domain2.alias2 domain3.alias1 domain3.alias2

This way all the other LAN systems know to which IP address to send the request to when the is used in the local Browser.

Downside – while this will work on Windows, Linux, and Mac OS X, this will not work on most mobile devices unless they are jail-broken / rooted (as you can’t edit their Hosts file).

Hosts file path: C:\Windows\system32\drivers\etc\hosts

Use Registered Domain Names

Connect via any website’s domain-name, as long as that domain-name is:

  • Registered (bought and paid for on Namecheap, GoDaddy, etc)
  • And has a DNS “A” record set (resolved) to either the LAN IP of the server (ex: or the Public IP of the Router (via the domain Registrar’s DNS servers).

* It’s perfectly valid to resolve a domain-name to a local LAN IP address.

If you only have 1 registered domain name, you can use its sub-domains to represent your different local websites, by using a wild-card (*) / catch-all DNS record. This way all * requests, regardless of what they are, will always be resolved to your LAN IP or Public IP. And once that request reaches your web server, the web server will match the to the proper website. The downside of this is that every website’s domain-name must use a common base (which can make the full address long).

Use a WiFi Router that’s capable of DNS Masquerading

Some Routers are supported by 3rd-party firmware such as the OpenWRT and DD-WRT (2) projects.

Both OpenWRT and DD-WRT are able to inject custom domain-name to IP address resolves via their own internal Hosts files and/or internal bundled DNS Masquerading software such as DNSmasq.

This is probably the best option as ALL WiFi connected computers (regardless of OS) and mobile devices (everything from iPads to Android phones) will be able to connect to each and every website… Without configuring anything or doing anything to those computers and devices.

Use Own DNS Servers

Local networks (that are behind a typical wifi Router) use outside DNS servers, which “resolve” (convert) domain names to IP addresses.

Typically, the Router gets the addresses of 2-4 DNS servers from your Internet Provider (via a protocol called DHCP), and acts as the middle-man, for domain name resolve requests, between the computers and devices within the LAN, and the external DNS servers.

These external DNS servers are unable to answer and resolve requests for your “virtual” (non-registered) domain names to your locally hosted websites and their LAN IPs.

You can however, via your Router settings, switch-over these DNS servers with your own local DNS server, which will be able to resolve all “virtual” (fake) domain names, and wildcards (ex: *.local), to the server’s LAN IP address.

There are several options for DNS Servers for Windows, and Linux.


On some mobile devices, you can set them to use an HTTP Proxy server, that will then custom-resolve the domain-name to the LAN IP address. This gets around the problem of not being able to edit the device’s Hosts file without jail-breaking or rooting it. But you’ll need one Linux PC or VM running the proxy server software.

Mobile devices have to be connected to your WiFi to be able to access the server via the LAN IP address. Otherwise, you must use a registered domain-name that has a DNS record resolving the domain-name to the the Public IP of the Router (which then “port-forwards” from WAN:80 to LAN:80 of server).

LAN IPs are usually reassigned/changed after reboot or power-off of the LAN connected computers and devices and/or the Router. You’ll have to go into the Router’s configuration and settings, and make sure to manually assign the same LAN IP to the same LAN system (by assigning that LAN IP to the server’s MAC address).

When a request comes in to the web-server for a domain-name or IP address that is not assigned to any website, the first Apache Virtual Host (DefaultWebsite, localhost) gets returned.

When accessing the server directly via an IP address, you’ll only be able to access 1 website (the website that has that IP assigned as a Domain Alias)… Unless you run each website on a separate port number (8080, 8081, etc). *Some Apache configurations/setups and some PHP web-app scripts might not work correctly, as they expect regular port 80 access.

While most mobile devices OS (iOS, Android) has a Hosts file, those devices have to be jail-broken/rooted, and/or you have to go through complicated steps to modify their Hosts file.

Running your own DNS server is not recommended as it could be complicated to set up and operate, and the system it’s on has to always be On for everything else to work. If you do run your own DNS, you’ll need to set it’s LAN IP in the Router’s settings and make sure no other DNS servers are used (by the Router). DNSMasq is the recommended choice.

You can host multiple websites under 1 main domain-name/website by treating the other websites as folders: C:\WampDeveloper\Websites\\webroot\other.domain\

* Make sure to turn off any redirects of the Domain Aliases to the Primary Domain Name (*select website in WampDeveloper’s Websites Tab, click Settings; or just create a website with the LAN host-name as the Primary Domain Name, and the LAN IP as one of the Domain Aliases).

* Make sure to open (on the web-server) the Windows Firewall inbound port 80 (http) and 443 (https) connections (TCP and UDP). Windows Firewall will block these by default.

* If you are resolving domain-names to the Public IP (of the Router), make sure to update the Router’s settings to “port forward” incoming port 80 (http) and 443 (https) requests to the proper LAN IP of the web-server.

How to Uninstall WampDeveloper

Uninstalling WampDeveloper is very easy, but it is not done through Windows’ Control Panel\Programs and Features interface.

To uninstall WampDeveloper:

1. Go into WampDeveloper’s Components Tab.

2. At the very bottom, locate and click the “Uninstall WampDeveloper” link.

3. Proceed by clicking “Run Uninstallation Tasks”, then afterwards, once it’s done, click “Continue” to close it.

4. Once it’s finished and closed, delete the remaining C:\WampDeveloper\ folder to clear everything out (changes made, websites, databases, etc) and to start with a clean state before installing again.

* If Windows won’t let you delete the WampDeveloper folder, then some files inside it are still in use, just reboot/restart the system, then try deleting the folder once more.

* WampDeveloper is entirely self-contained (in it’s folder), and the uninstallation process does not delete any files – just in case you have websites and databases to keep. The task of deleting WampDeveloper’s folder is left to the user.

If you are uninstalling due to issues right after installation, you should go over this information:

Enabling IonCube Loader in WAMP

IonCube Loader enables WAMP servers such as WampDeveloper Pro to run encoded and secured PHP files. These files are usually commercial (not free) PHP scripts and apps that have been secured against reverse-engineering and piracy – such as WHMCS, vBulletin, Blesta, KBPublisher, and extensions/plugins for Joomla, WordPress, ExpressionEngine, etc.

To enable the IonCube PHP Extension in WampDeveloper Pro:

1. Open file php.ini -

2. Near the end of php.ini, locate the IonCube section -


3. Un-comment the load line for this extension (remove the ‘;’ character from the beginning of the line) -


4. Save file. Restart Apache.

Afterwards, IonCube will be loaded by PHP and you can verify this via phpinfo.php.

* Generally IonCube Loader should be loaded in php.ini before any of the other extra PHP Extensions.

* The latest IonCube Loader version can be downloaded from here, but it must match Apache’s + PHP’s compiler version (“VC11″ is Apache 2.4, “VC9″ is Apache 2.2, “VC6″ is Apache 2.0) and PHP run-type (“TS” is regular PHP / mod_php, “Non-TS” is PHP-FCGI). The newer versions can replace the older versions by simply copying-over …\Php\ext\ioncube_loader.dll.

IE Displaying Pages Differently Between Website on Local Host and Website on Live Server

If your website is rendering differently in IE when – hosted from a local development system (localhost, local network, etc) and the live server (hosting account), it’s because IE is…
A) Detecting that this website is coming from the Local Intranet Zone (vs. the Internet Zone).
B) And, in-turn, rendering the website in Compatibility View (usually in IE7 mode!).

IE does this because most intranet use is done in the Corporate and Enterprise setting, which is built around an enormous amount of internal legacy code, pages, and webapps. And backward compatibility is the #1 selling point for Microsoft in this market.

Setting IE’s Compatibility Mode

To clear out the above IE behavior:

IE Settings > Tools > Compatibility View Settings

Uncheck “Display intranet sites in Compatibility View”, and also uncheck (if set) “Display all websites in Compatibility View”.

Then in IE Dev Tools (press key: F12), make sure that “Browser Mode:” and “Document Mode:” are set to the latest version.

Setting Page’s Document Mode

In the page’s template and/or source code, add “X-UA-Compatible” META Tag to force:

  • Browser’s highest document mode:
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
  • Full IE8 Standards Mode:
    <meta http-equiv="X-UA-Compatible" content="IE=8">
  • IE8 Quirks Mode if no valid DOCTYPE is defined:
    <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8">

*This Meta Tag must be placed in the <header> section before any other tags.

Or you can set this server-side by sending a “X-UA-Compatible” Response Header:

<IfModule mod_setenvif.c>
  <IfModule mod_headers.c>
    BrowserMatch MSIE ie
    Header set X-UA-Compatible "IE=edge" env=ie
    Header append Vary User-Agent

The above code can be placed in the website’s VirtualHost file or an .htaccess file.

*The Meta Tag takes precedence and will override the Response Header (if both are present).

Further Reading

A guide to IE Compatibility View and X-UA-Compatible
What’s the difference if meta tag X-UA-Compatible exists or not?


X-UA-Compatibility Meta Tag and HTTP Response Header
Controlling default rendering
Specifying legacy document modes
Defining document compatibility

Installing PEAR For WAMP

Installing and setting up PEAR is very easy.

1. Create this folder if it does not already exist:

2. Download the latest version of PEAR’s installation file and save it into the above folder:

3. Open the command line (WampDeveloper, System Tab, button: Command Line) and within run these commands:

cd \WampDeveloper\Tools\PEAR
php go-pear.phar

4. Select to install PEAR system-wide.


WampDeveloper already includes path "C:\WampDeveloper\Tools\PEAR" in PHP’s "include_path" setting (php.ini).

PEAR Installation Guide

List Of PEAR Packages

Enabling WampDeveloper’s PHP OPcache (OPcode Cache)

To enable the PHP’s OPcode cache extension “php_opcache.dll”:

1. Open PHP’s configuration file php.ini (Reliability Tab, click button: php.ini).

2. Near the bottom of the file find section “[Zend OPcache]“, and uncomment that section (remove the ‘;’ from each line).

This setting should already be set to “1″, which enables OPcache globally for all websites (…the other option is to only enable it for specific websites via their VirtualHost files):

* Be careful not to uncomment the plain-text lines (the real comments that explain things) or Apache might not start.

3. Open the website’s HTTP and SSL VirtualHost files (Websites Tab, select website, click buttons ‘HTTP VirtualHost’ + ‘SSL VirtualHost’). Remove, or comment out, this line:
php_admin_flag opcache.enable Off

* The above line might be inside both a “<IfModule php5_module>” (for PHP5) and “<IfModule sapi_apache2.c>” (for PHP4) blocks.

4. Save files (php.ini and VirtualHost files), and restart Apache for configuration changes to take effect. * Close and open WampDeveloper again to see changes in UI checkbox of Zend OPcache.


* There is a minor bug in the current release of Apache and/or PHP versions that makes phpMyAdmin eventually crash Apache while the PHP OPcode cache is enabled, unless you implement the fix shown here:

Edit file:

Comment out line (add ‘#’ in front):
php_admin_flag opcache.enable Off

* If you update your PHP scripts while the PHP OPcode cache is enabled, this configuration line in the “[Zend OPcache]” section will cause the previous results to remain for 60 seconds before your changes are displayed (which confuses a lot of developers when they don’t see the changes immediately):

* OPcache must be enabled globally (opcache.enable=1) when using PHP-FCGI, as in this case, it’s not possible to set this value via a website’s VirtualHost.

Setting Up An FTP Connection To WAMP

To set up FTP access to your websites, you have to -

1. Install your choice of an FTP Server, such as FileZilla (a popular one), on the same system that the WAMP server is on.

2. Using the FTP Server:

A) Create an FTP user account with full read and write permission granted on your website’s \webroot (DocumentRoot) folder.
Example: C:\WampDeveloper\Websites\\webroot\

B) And set that folder as the FTP user’s home-folder.

Then to take care of everything else -

1. Port-forward the FTP port in the Router to the LAN IP address of the server (if you are behind a Router).

2. Open the FTP port (for incoming connections) in Windows’ Firewall application.

The FTP port is 21.

The remote FTP user would then login on the WAMP server’s IP address (Public IP) or website’s domain-name (if the domain is registered and reachable) using his username + password credentials, and will have access to the specified home-folder.

* Everything related to FTP would be done via the FTP Server, and not the WAMP server.

* WinSCP is a good FTP client that can be used to connect to the FTP server.

Using Gmail and MSMTP To Send Mail From PHP

1. Enabled IMAP access under your Gmail account, to be able to connect to Gmail via something other than its web interface:

Settings - Forwarding and POP/IMAP - IMAP Access - Enable IMAP - Save Changes


2. Set PHP to use MSMTP as “sendmail”:

Edit file php.ini (C:\WampDeveloper\Config\Php\php.ini)

Disable mail()’s default use of a local mail server.

;SMTP = localhost
;smtp_port = 25

* Comment the above lines for SMTP and smtp_port by using the “;” character.

Enable mail()’s use of MSMTP.

sendmail_path = "C:/WampDeveloper/Tools/msmtp/msmtp.exe -d -C C:/WampDeveloper/Tools/msmtp/msmtprc.ini -t --read-envelope-from"

mail.log = "C:/WampDeveloper/Logs/Php/maillog.txt"

* Uncomment the above lines by removing the “;” character. And make sure to update the paths to the correct drive letter.

3. Define your Gmail account information for MSMTP to use (using Gmail’s outgoing mail settings):

Edit file msmtprc.ini (C:\WampDeveloper\Tools\msmtp\msmtprc.ini)

# Default values for all accounts
tls_certcheck off
logfile C:/WampDeveloper/Tools/msmtp/msmtplog.txt

* Make sure to update the logfile path to the correct drive letter.

account Gmail
port 587
auth on
tls on
password mypassword

* Update the above lines with your email address and password.

4. Send a test email:

Create file C:\WampDeveloper\Websites\\webroot\send-email.php

Set the proper “$from” and “$to” email addresses.

  $from    = '';
  $to      = 'someone.else@somewhere.else';

  $subject = 'Test Subject';
  $message = 'Hello. Testing email.';
  $headers =
    'From: ' . $from . "\r\n" .
    'Reply-To: ' . $from . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

  if(mail($to, $subject, $message, $headers))
    echo 'Mail function returned successfully. Mail has probably been sent.';
    echo 'Error! Mail function failed. Mail NOT sent.';

* Make sure that your “From:” email address matches the email address defined for Gmail in msmtprc.ini. You cannot use another email address (Gmail will reject it).

Access URL

Then check your Gmail’s Sent folder, and your receiving account’s Inbox and Spam folder.

5. Debugging MSMTP:

If you do not receive your test email, and your Gmail account does not have a copy of the email in its Sent folder, check MSMTP’s log file for clues (msmtplog.txt).

You can also test sending a basic email directly from the command line (to bypass PHP) to see if MSMTP is working itself (it will output debug info)…

echo Subject: Testing Email. | C:\WampDeveloper\Tools\msmtp\msmtp --debug --file=C:/WampDeveloper/Tools/msmtp/msmtprc.ini --logfile=C:/WampDeveloper/Tools/msmtp/msmtplog.txt -t someone.else@somewhere.else

* Update the above paths, and the “from” ( and “to” (someone.else@somewhere.else) email addresses. This email will only have a subject line, it will not have a body due to the limitations of the command line.

6. Help:

PHP Mail Function
Problems sending mail with POP or IMAP

Website Only Shows Text Content With All Graphics Missing

My site look perfect from localhost, but not from the internet. Why can’t I see styles and pictures on my website?

The simple answer is that all your generated links (in the HTML source of the page) are still probably using “localhost”…

If you load your website in your Browser (Chrome, IE, Firefox) from outside, right click on the page, and select ‘View Page Source’, you’ll see that all the links to the CSS and Graphic content (images) are either:

  1. Of the form http://localhost/ or
  2. Or using a domain-name that is made up or does not have proper global DNS set up.

None of these locations and URLs are reachable from outside. They are only reachable from the server (the local system).

You have to use a Domain Name for the website that is not localhost, a LAN IP, etc. That Domain Name should also resolve to the public IP address of the server, and not a local or LAN IP.

This could also be a webapp issue – for example, with WordPress originally installed for localhost, you’ll need to go into WordPress Setting, General Tab, and update/change the “wordpress address” and “site address” to a address other than “localhost” (an address that can be reached from outside).

* When you test your website again from outside, make sure to hard-refresh the page (in your Browser) by pressing Ctrl-F5 so everything is reloaded (so you don’t get cached pages and old results).