Is There Anything Like A CDN For Dynamic Content

Apr 13, 2009

Is there anything that takes the concept of a CDN (localised content delivery), but applies it to dynamic stuff like PHP and databases, syncing across worldwide servers as necessary? It'd be nice to deliver the entire site in a localised manner.

I'd imagine Google does something like this for their own sites, and maybe other large companies too — but I have no idea if such a technology exists in the consumer space.

I can see it being a logistical nightmare having to keep all versions of the database in sync, so it wouldn't surprise me if nothing like this exists.

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Apache :: Setup Dynamic Content Configuration - Correct Headers

Aug 28, 2014

I am trying to setup dynamic content configuration in apache 2.2 httpd conf. Here is the configuration and couple test cases:

<FilesMatch ".(js|css|gif|jpg|jpeg|png)$">
Header set Cache-Control "no-cache, no-store, max-age=0, must-revalidate"

Without <FilesMatch> directive, the headers are set to all requested content as it should. This includes content served from apache server and content from a separate application server.

If I use the above configuration example, I can see that static content comes with correct headers only

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Dynamic Caching And PHP

Mar 4, 2009

I'm developing a PHP application which will be hosted on IIS7 and I'm interested to see if it is possible to get dynamic caching working when using an MVC pattern (I'm currently using the Zend Framework and it's Frontcontroller implementation).

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Horde Dynamic IP

May 18, 2007

I received this error msg for my Plesk account

Cannot log into Webmail. It shows error: "Your Internet Address has changed since the beginning of your Mail session. To protect your security, you must login again."

The solution is given by


But the host that I was using in the USA refuse to implement it saying it will endanger the server. Is it true? But most of us are using dynamic IPs ADSL, this restriction will affect all, wont it?

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Dynamic Subdomains In Plesk

Nov 2, 2008

im trying to set up a site for a client whereby they can add subdomains to their existing domain (,, etc.).

its a dedicated server with Plesk...can anyone point me in the right direction please?

ive searched these forums but havent come up with much, but maybe didnt search for the right terms, so my apologies if this has been answered before.

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301 Redirecto Dynamic URL's In .htaccess

Feb 9, 2006

I need to forward some dynamic URL's So for example:

needs to be directoed to

How can I do this in .htaccess?

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Monitoring With Dynamic DNS Support

Sep 4, 2008

A casual reader of WHT would observe that there is no perfect hosting company. They will all at one time or another have either a performance issue or an outright outage.

I think there is a simple way to address this problem: upon detecting a failure route traffic to a secondary location. This is done typically through Dynamic DNS.

There a lot of monitoring companies out there and most of them - if not all - limit their function to sending out an alert. Well, that's not good enough for an HA solution.

There needs to be a way to take actual automated remedy action upon failure detection.

I think the simplest possible action would be to update IP address of a host with a backup IP through dynamic DNS. My question then is: does any one know of a monitoring service that would support this?

If you think of a cost of adding another hosting account through a backup provider especially if they both use cPanel, its minimal. And yet you would have a HA solution that enterprise customers spend millions on.

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404s On Dynamic Pages Only

Apr 9, 2008

I have a problem with a site that I'm hosting on a managed dedicated server - I'll try to explain this as simply as possible!

From my office I seem to have a problem viewing dynamic pages on the site.

- The HTML index page loads fine
- Internal dynamic PHP pages throw up 404s
- Other PHP pages/sites on the same server are fine
- The pages load fine using a proxy browser
- I've cleared my cache which made no difference
- From other locations (home) I have never had the problem

I'm obviously worried that I'm not the only person having these problems.

The fact that the site loads fine through a proxy indicates that there's not a problem with the server,

However I'm confused that it's not a local problem as the HTML pages shouldn't be loading either right?

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Cache The Dynamic Url (images)

Oct 3, 2007

I've got an application (java web ) tha dynamically creats images ( with dynamic url - - like thumbnails,icons ect.

The think I'm trying to deal with is to force caching theese images by a browser.

When the application starts the server gets images and shows code 200 ( and this images apppers in web browser cache), but after reloding or simply viewing the images from the cache url the server shows again code 200. I'd like to have code 304 - not modified - like when browser gets an image from cache.

The dynamic url for image is being created only once - when the appication starts, and after that it stays unchanged, but I still can't force use the cached images - like when it is a static url - .../image.jpg.

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Apache :: Dynamic URL Not Rewriting

Jul 10, 2013

For some reason I have some old urls which just don't want to rewrite. I have lots of others working fine but I think it may be to do with the symbols in these paths which are stopping it from working. Ideally these should be 301'd.

I need view.asp?filter=category%20name to go to category-name

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Dynamic IP Addresses, Counting Visitors Etc.

Feb 22, 2008

Many ISPs assign dynamic IP addresses and I'm wondering if the following will be a problem for my site if it for example had 5 million all-time unique users:

So if someone new comes to my site with an IP that has already been in use by someone else who visited my site, that user will use the same databases with the previous user and won’t even be considered a unique in user.

Do dynamic ISP given IPs work so that someone else gets that IP once you release it?

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Site Hosted, But Email On Dynamic Ip

Sep 19, 2008

Currently I have my site hosted on a box at home, and using JIP to autoupdate the dynamic ip through zoneedit.

What am I am looking to do is to move my site to a hosted company, and keep my exhange server at home, having the dynamic ip updated through zoneedit, or other.

I have been poking around in zoneedit, and searching the web, but don't seem to be able to work it all out. (the autoupdater, JIP, wants to change the site ip at the same time)

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Unable To Load Dynamic Library

Jul 18, 2008

I have a weird issue with my Plesk VPS. If I restart the VPS it will work find for about 20 minutes and then go down. All my websites will continue to load and load until they time out.

The weird thing is, I can still access everything. FTP, Plesk, SSH. Just no my websites.

Here is the last error I receive before it continues to load:

PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/modules/' - cannot open shared object file: No such file or directory in Unknown on line 0

Here are the last few errors in my log:

[Thu Jul 17 19:51:59 2008] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Jul 17 19:51:59 2008] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!?
[Thu Jul 17 19:51:59 2008] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!?
[Thu Jul 17 19:51:59 2008] [notice] Digest: generating secret for digest authentication ...
[Thu Jul 17 19:51:59 2008] [notice] Digest: done
[Thu Jul 17 19:51:59 2008] [notice] LDAP: Built with OpenLDAP LDAP SDK
[Thu Jul 17 19:51:59 2008] [notice] LDAP: SSL support unavailable
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/modules/' - cannot open shared object file: No such file or directory in Unknown on line 0
[Thu Jul 17 19:51:59 2008] [notice] mod_python: Creating 4 session mutexes based on 128 max processes and 0 max threads.
[Thu Jul 17 19:51:59 2008] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!?
[Thu Jul 17 19:51:59 2008] [warn] RSA server certificate CommonName (CN) `plesk' does

NOT match server name!

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Ubuntu + Apache 2.0 + PHP 5.2.1 - Cannot Use Dynamic Extensions (e.g.

Mar 6, 2007

I'm trying to compile PHP 5.2.1 on my Ubuntu 6.10 server. I've downloaded the source code from and am running the following configure command on it:

./configure --with-apxs2=/usr/bin/apxs2 --with-mysql --with-informix=/opt/informix --enable-shared --enable-pdo=shared --without-sqlite --without-pdo-sqlite --with-pdo-mysql=shared --with-zlib --with-xml --with-pdo-informix=shared,/opt/informix
After doing this, then make, I copy over the generated file into my Apache extensions directory, add (and lines for the PDO-MySQL/Informix extensions) into my php.ini and restart Apache. I would expect to see PDO, PDO-MySQL and PDO-Informix listed in my phpinfo() - but they don't appear.

So, I tried recompiling PHP but without any of the PDO extensions being shared. This worked, and I could see PDO and PDO-MySQL in phpinfo(), but not PDO-Informix.

So, can anyone hazard a guess as to why none of the PDO extensions load when compiled shared? I don't get any related error messages in the Apache or System logs by the way....

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Home Server But Dynamic IP Address

Sep 12, 2008

If I wanted to host my website from home is there a solution to having a Dynamic IP issued by the internet company ?

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Apache :: Redirect Dynamic URL To Static URL

Nov 14, 2013

I transferred my WordPress site to static HTML website, but some other website have a link to my old WordPress site URL....

I want to redirect all traffic from that URL to new URL which is URL...., but my redirect in .htaccess file doesn't work (Redirect 301 /?page_id=1234 URL... because of the query string."mod_rewrite" to create the right code in .htaccess file.

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Apache :: How To Write Dynamic Image Url

Mar 15, 2013

how can I rewrite a dynamic image url? URL....

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Apache Standalone With Adobe HTTP Dynamic Streaming

Mar 1, 2013

I have been trying to install apache server on a windows pc which will deliver adobe HDS content. there is a specific tutorial for this in the adobe site, can be found here. I have been following it to the word, but when I try to start apache after asking it to load new modules (mod_f4fhttp), it returns me an error saying that the file is not readable/not found. I have installed the proper visual c++ libraries and also checked the permissions and spellings. This seems to be a common error with php modules in apache, but none of the solutions seems to work.

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Apache :: Write HTAccess Rules For Dynamic Pages

Feb 15, 2013

I'm really struggling to write htaccess rules for dynamic pages. I've like 20 pages to redirect What I want to do is redirect:

[URL] ....
[URL] ....

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Apache :: Building A Dynamic White-label Site On 2.4.x

Oct 29, 2014

How do I architect and design a dynamic, white-label website i.e. a site where the components are dynamic based on a path component in the URL?

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Plesk 11.x / Linux :: PHP Startup - Unable To Load Dynamic Library

May 1, 2015

I am troubleshooting a problem where the php5 package was replaced and caused lots of psa/plesk packages to be removed. This system details are;

# cat core.version
11.5.30 Ubuntu 12.04 115140407.17
# lsb_release -a
Description: Ubuntu 12.04.2 LTS
Codename: precise
# uname -a
Linux 3.2.0-45-generic #70-Ubuntu SMP Wed May 29 20:12:06 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

The plesk panel is up, the websites are running, and the email services are running, but there are many errors like so;

==> error.log <==
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/' - /usr/lib/php5/20090626/ cannot open shared object file: No such file or directory in Unknown on line 0

I also get the following error when inspecting the json module:

root@vps:/etc/php5/mods-available# php -i|grep -i json
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/' - /usr/lib/php5/20090626/ cannot open shared object file: No such file or directory in Unknown on line 0

[Code] ....

What I need to install to get that file back?

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Smarter Mail - Spammers Targetting Mail Server Using Dynamic Ip's

May 22, 2009

We have been having some problems with one of our mail servers lately. Server is running Smarter Mail 4.x with declude.

Some spammers have been targeting this particular to send spam through this server. This putting lot of load on the server because declude is processing the SPOOL in Smarter Mail and spool goes upto 2000-20000 during the day. We have been checking the headers and blocking the IP's continuously of these spam but these people are using dynamic ip's. And it doesn't seem like single spammer. Content is quite different.

Blocking full ranges of certain IP Range helps though but then lot of legitimate mail is getting blocked as well.

Is there any good suggestion or a serious mail server admin who can have a look and actually sort it.

This is causing serious delays on our mail delivery through this mail server.

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Mod_evasive Log Content

Mar 24, 2008

I have a file named dos- (i changed the IP address in purpose) inside the log and inside the file there is a 4 digit number that is constantly changing. more

[root@myserver]# more dos-

What is 8726?

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VPS Providers Which Allow IRC Content

Mar 30, 2009

Looking for an VPS provider which allows IRC network provider, currently host a network on a shell account but want to move to a VPS for more control, don't want to host it on any of my current dedicated which allow IRC access.

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Transfer The FTP Content

Jun 17, 2009

i have two domain names: and

I want to transfer the FTP content of to without havin to do it manually, (transfering data to my PC via FTP and resending it again)
Is that possible in WHM? and How?

Will it work with "Restore a Full Backup/cpmove file"?

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Protecting Content

Mar 14, 2008

My company provides various reports and dynamic website content to clients whose websites we design and host as well as to clients who have their sites designed and hosted elsewhere. We do not want people to be able to easily link to our content or bring it up in an iframe or whatever unless they are a paid subscriber. We would like to be able to limit the content to the domains of paying clients and keep it from displaying elsewhere. Note also that out of several reports, publications and content we offer, clients can mix and match, subscribe to just one element or all of them (The subscription levels are managed by us on the back end.)

Currently we have a system that is built in Perl/Postgres SQL and it is problematic(constantly failing and not very secure) Also it requires that the content be loaded into an iframe on the client's site or linked directly. We would like a solution that is PHP-based and can talk to our existing database. We would also like to be able to display the content on the page without an iframe so it is more search engine friendly, etc.

An off-the-shelf solution would be preferable if one is available - and we like to support the open source community.

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