phpmyadmin token mismatch for long time idle - php

I installed phpMyAdmin 4.0.4.1 on my local develop enviroment, I set auth_type to config. Also I provide authentication requirements by this settings:
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['host'] = 'localhost';
$cfg['Servers'][$i]['password'] = 'somepassword';
But after a while that it is idle, if I click on any link of it , it shows me an error token mismatch, Is there any way that I increase its TTL? or make it alive permanently?
Above picture shows error.

I solve this annoying problem by following instructions below:
open /etc/php5/apache2/php.ini
find ;session.save_path = "/tmp", this line may look also like this ;session.save_path = "/var/lib/php5"
remove first semicolon from this line
restart apache by executing sudo service apache2 restart
FYI: I work under Ubuntu 12.04 with apache2, php5, phpMyAdmin 4.0.5 so for different systems and servers file path may be a little different.
In case of any troubles check if directory from step 2. is writable for server.
Good luck.

in file libraries/common.inc.php
line 1076
delete this part
/*
* There is no point in even attempting to process
* an ajax request if there is a token mismatch
*/
if (isset($response) && $response->isAjax() && $token_mismatch) {
$response->isSuccess(false);
$response->addJSON(
'message',
PMA_Message::error(__('Error: Token mismatch'))
);
exit;
}

For me this seemed to be caused by my root partition being full up, and I guess this error was triggered by php being unable to write to the session directory.

I had to turn my cookies on in my browser and it worked for me. (Using MAMP on OSX)

After doing all that was recommended here and in other places with no success, I found out that my /tmp was full.
To check it, just run from command line: df
It reports file system disk space usage.

In my case I had to remove some files to make some space in this directory (\tmp) and the error was gone for now.

Clearing your browser cache then it will work.

To stop this issue, delete the "tmp" folder and make a new one called "tmp" or just clear the content.

Try using another browser ex IE if it works then remove suspected chrome extensions .
Forr me pageXray was the problem.

ISSUE RESOLVED -
I just cleared the browsing history and data for last 7 days. It solved the problem for me.
Try it.

I was spend my 2-3 days to solve this problem .. on Stack overflow but i didn't got any working solution for my case.. but
finally..
I solve this annoying problem i was running phpmyadmin from localhost using chrome
but after running from firefox.. PROBLEM IS GONE..
so.. I think that was cookies problem not PMA so.. you should try with any other browser..

Related

Randomly arising "Permission denied" in php mkdir (windows)

I am wrestling with a problem. I stripped the example to this script that can be run as stand-alone application:
<?php
if(file_exists("x")){
print "<div>Deleting dir</dir>";
rmdir("x");
} else {
print "<div>Not exists</dir>";
}
clearstatcache();
mkdir("x");
If I call it repeatedly (F5 in browser) then sometimes this error occurs:
Deleting dir
Warning: mkdir(): Permission denied in F:\EclipseWorkspaces\Ramses\www\deploy\stripped_example.php on line 9
10-20 times it works OK and next time this error occurs. I googled more users has this problem but without solution.
https://github.com/getgrav/grav/issues/467
My example creates the directory in cwd, where anybody has full control. In addition the mkdir $mode parameter is ignored in windows. After the error the "x" directory truly not exists and in next attempt (F5) it is always created without error. I hopped later added "clearstatcache()" will help but nope.
In my full application I am using full file path. The deleted directory is not empty and I must clean it first. After successfull deleting the error occurs almost always.
My system is Windows 7, PHP 7.0.5, Apache 2.4
Windows doesn't let you delete things if another process is accessing them.
Check if your antivirus or some other process is opening the folder.
You can check this in resource monitor, from task manager.
Try the code with additional check on existing:
<?php
if(is_dir("x")){
print "<div>Deleting dir</dir>";
rmdir("x");
} else {
print "<div>Not exists</dir>";
}
clearstatcache();
if (!is_dir("x")) {
mkdir("x");
}
Had the same problem with Windows 10, Xampp and PHP 7. Problem was Kaspersky Internet Security, scanning and blocking the directory. Disabling KIS mkdir always works for me. Instead of directly recreating you can try rename, if disabling security software is not an option for you.
$time = time();
mkdir($path . $time);
rename($path . $time, $path);
juste delete espace name folder with Function Trim in php

WordPress Error establishing a database connection

I am new to WordPress, and I am trying to setup it at my local machine.
I am getting error like "Error establishing a database connection".
I tried all solutions from WP blogs,
created new user with all privileges
tired with root user.
created and deleted the target database multiple times.
Nothing is working.
Does anyone know anything else I can try?
Error establishing a database connection doesn't get any simpler than that. Your password, database name, user name, or host is wrong. See http://codex.wordpress.org/Common_WordPress_Errors#Error_Establishing_Database_Connection
Are you sure about using localhost as the server? Are you using MAMP or WAMP?
Try using Adminer http://www.adminer.org/ on your PC/Mac to find the database name, etc., and to admin the database when needed.
If you know can use a shell, try logging into the MySQL server and trying
mysql> show databases;
to list all databases to check your database name.
And try
mysql> mysqlserverinfo --server=root:pass#localhost -d --format=vertical
to get port info, etc. See http://dev.mysql.com/doc/mysql-utilities/1.6/en/mysqlserverinfo.html
I used MAMP for the MySQL server, and used its phpMyAdmin interface to create the database for WordPress and specify its user and password.
Host, for the new database, was "%" on the "User" tab of phpMyAdmin, which it said was supposed to allow any value, and did let me get a certain way through the process. But, I ended up going into "Login Information" under the "User" tab in phpMyAdmin, and changing "%" to "localhost".
That allowed me to finish setting up WordPress.
For future readers, if you are on OSX Yosemite (possibly other versions of OSX as well) and get "Error establishing a database connection" with a local WordPress installation, you may need to do the following:
sudo mkdir /var/mysql
sudo chmod 755 /var/mysql
sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
Yosemite looks in the wrong location for the mysql.sock file, so creating this symlink to the correct location solves the problem.
The reason the missing symlink is a problem for WordPress specifically is because in your wp-config.php file, define('DB_HOST', 'localhost'); will not work. An alternative workaround is to change this value in your wp-config file to define('DB_HOST', '127.0.0.1');.
The OP didn't say what details they changed in their wp-config file to solve the problem (perhaps it was this DB_HOST parameter) so I just thought I'd post this since I wasted a lot of time trying to figure it out!
I tried all these suggestions and still couldn't get it to work. However, I had installed MySQL v8.0.12 and noticed that in the 'Users and Privileges' section, under the user I had set up, the 'Authentication Type' for the password was set to some kind of 'sha2' setting.
After trying 100 different things, I eventually fixed this by uninstalling then re-installing MySQL, and during the re-installation, specifically choosing the option button that refers to maintaining compatibility with previous versions of MySQL.
I think this resulted in my passwords not being automatically hashed, which enabled Wordpress to successfully connect to my MySQL database.
What worked for me:
-I moved the wp-config.php file into another folder
-Refreshed the browser and Wordpress will try to re-install
-choose a language
-A message should say Wordpress is already installed and will take you to the database setup page.
-Enter the same db name, username, password, and host (usually localhost).
-Got to www.yoursite.com/admin and you should be able to log in.
I had this issue and I have searched a lot but no one mentioned a fix like mine!
I checked my disk size and I found that my disk size was 100% used. I tried to clean up some of the files but still there were very large files taking up a lot of space. I kept looking and found that the mysql ./data folder occupied 90% of my disk space. It was the binlog files! Very large files I ended up cleaning them up using the Reset Master method. There is another method PURGE BINARY LOGS which didn't work for me. I had to use Reset Master. Just follow the steps and make sure you have a good backup. Good Luck.
Try this before anything! It fixed my issue.
sudo service mysql restart

session_start hangs

since a few hours our server hangs every time you do a session_start.
For testing purposes i created a script which looks like this:
<?php
session_start();
?>
Calling it from the console hangs and it can't even be stopped with ctrl-c, only kill -9 works. The same for calling it via Apache. /var/lib/php/session/ stays empty but permissions are absolutely fine, www can write and also has read permissions for all parent folders.
According to the admins there were no changes made on the server and there is no special code registered for sessions. The Server is CentOS 4 or 5 and yesterday everything was working perfectly. We rebooted the server and updated PHP, but nothing changed.
I've ran out of ideas, any suggestions?
UPDATE
We solved this problem by moving the project to another server, so while the problem still exists on one server there is no immediate need for a solution anymore.
I will keep the question open in case someone has an idea for others having a similar problem in the future, though.
There are many reasons for that, here are a few of them:
A. The session file could be opened exclusively.
When the file lock is not released properly for whatever reason, it is causing session_start() to hang infinitely on any future script executions.
Workaround: use session_set_save_handler() and make sure the write function uses fopen($file, 'w') instead of fopen($file, 'x')
B. Never use the following in your php.ini file (entropie file to "/dev/random"), this will cause your session_start() to hang:
<?php
ini_set("session.entropy_file", "/dev/random");
ini_set("session.entropy_length", "512");
?>
C.
session_start() needs a directory to write to.
You can get Apache plus PHP running in a normal user account. Apache will then of course have to listen to an other port than 80 (for instance, 8080).
Be sure to do the following things:
- create a temporary directory PREFIX/tmp
- put php.ini in PREFIX/lib
- edit php.ini and set session.save_path to the directory you just created
Otherwise, your scripts will seem to 'hang' on session_start().
If this helps:
In my scenario, session_start() was hanging at the same time I was using the XDebug debugger within PHPStorm, the IDE, on Windows. I found that there was a clear cause: Whenever I killed the debug session from within PHPStorm, the next time I tried to run a debug session, session_start() would hang.
The solution, if this is your scenario, is to make sure to restart Apache every time you kill an XDebug session within your IDE.
I had a weird issue with this myself.
I am using CentOS 5.5x64, PHP 5.2.10-1. A clean ANSI file in the root with nothing other than session_start() was hanging. The session was being written to disk and no errors were being thrown. It just hung.
I tried everything suggested by Thariama, and checked PHP compile settings etc.
My Fix:
yum reinstall php; /etc/init.d/httpd restart
Hope this helps someone.
To everyone complaining about the 30 seconds of downtime being unacceptable, this was an inexplicable issue on a brand new, clean OS install, NOT a running production machine. This solution should NOT be used in a production environment.
Ok I face the same problem on 2 PC, 1 is MAC mini XAMPP, 1 is Windows 10 Xampp.
Both is php spent infinity to run session_start(). Both PHP version is 7.x.x
I found that session files is lock to read and write. So that I added code to make PHP read session files and immediately unlock when done with
<?php
session_start([
'read_and_close' => true,
]);
?>
or
<?php
//For PHP 5.x
session_start();
session_write_close();
?>
After this PHP unlock session file => Problems solve
The problem: -
Iv experienced (and fixed) the problem where file based sessions hang the request, and database based sessions get out of sync by storing out of date session data (like storing each session save in the wrong order).
This is caused by any subsequent request that loads a session (simultaneous requests), like ajax, video embed where the video file is delivered via php script, dynamic resource file (like script or css) delivered via php script, etc.
In file based sessions file locking prevents session writing thus causing a deadlock between the simultaneous request threads.
In database based session the last request thread to complete becomes the most recent save, so for example a video delivery script will complete long after the page request and overwrite the since updated session with old session data.
The fix: -
If your ajax or resource delivery script doesnt need to use sessions then easiest to just remove session usage from it.
Otherwise you'd best make yourself a coffee and do the following: -
Write or employ a session handler (if not already doing so) as per http://www.php.net//manual/en/class.sessionhandler.php (many other examples available via google search).
In your session handler function write() prepend the code ...
// processes may declare their session as read only ...
if(!empty($_SESSION['no_session_write'])) {
unset($_SESSION['no_session_write']);
return true;
}
In your ajax or resource delivery php script add the code (after the session is started) ...
$_SESSION['no_session_write'] = true;
I realise this seems like a lot of stuffing around for what should be a tiny fix, but unfortunately if you need to have simultaneous requests each loading a session then it is required.
NOTE if your ajax or resource delivery script does actually need to write/save data, then you need to do it somewhere other than in the session, like database.
Just put session_write_close(); befor Session_start();
as below:
<?php
session_write_close();
session_start();
.....
?>
I don't know why, but changing this value in /etc/php/7.4/apache2/php.ini worked for me:
;session.save_path = "/var/lib/php/sessions"
session.save_path = "/tmp"
To throw another answer into the mix for those going bananas, I had a session_start() dying only in particular cases and scripts. The reason my session was dying was ultimately because I was storing a lot of data in them after a particularly intensive script, and ultimately the call to session_start() was exhausting the 'memory_limit' setting in php.ini.
After increasing 'memory_limit', those session_start() calls no longer killed my script.
For me, the problem seemed to originate from SeLinux. The needed command was chcon -R -t httpd_sys_content_t [www directory] to give access to the right directory.
See https://askubuntu.com/questions/451922/apache-access-denied-because-search-permissions-are-missing
If you use pgAdmin 4 this can happen as well.
If you have File > Preferences > SQL Editor > Options > "Auto Commit" disabled, and you just ran a query using the query tool but didn't manually commit, then session_start() will freeze.
Enable auto commit, or manually commit, or just close pgAdmin, and it will no longer freeze.
In my case it seems like it was the NFS Share that was locking the session , after restarting the NFS server and only enabled 1 node of web clients the sessions worked normally .
Yet another few cents that might help someone. In my case I was storing in $_SESSION complex data with several different class objects in them and session_start() couldn't handle the whole unserialization as not every class was loaded on session_start. The solution is my case was to serialize/jsonify data before saving it into the $_SESSION and reversing the process after I got the data out of session.

Xdebug And Netbeans Problem

Im trying to configure xdebug to work with Netbeans 6.9 and php 5.3
As far as i concern i have setup xdebug properly.
I can see xdebug extension from phpinfo page.
I have read other post and tried their suggestion but up to no avail
When i hit the debug button, it straight open the page in the browser and i can see message 'Waiting for connection' in the bottom pane of netbeans
Here my setting in php.ini
zend_extension = /usr/lib/php5/20090626+lfs/xdebug.so
xdebug.remote_enable=on
xdebug.remote_handler=dbgp
xdebug.remote_host=localhost
xdebug.remote_port=9000
xdebug.idekey="netbeans-xdebug"
Any help would be appreciated
First, check that it isn't actually working for you, and you don't notice. I've done this...convinced it's not working I wasted a chunk of time trying to get it to work, only to find that everything was OK.
Look at your NetBeans status bar. If you see "netbeans-xdebug" and "running" then it is actually working just fine. You probably have the "Stop at first line" option turned off and you didn't hit any breakpoints you set (if any) yet. That would be a reason you are seeing the page with little or no indication that the debugger is actually connected.
If you instead see "Waiting for Connection (netbeans-xdebug)" and the progress bar is cycling, then you are indeed not connected. Open Tools|Options, and go to the PHP page. On the general tab, make sure that the "Debugger port" is 9000 and the "Session ID" is "netbeans-xdebug". You may want to have "Stop at First Line" checked. I don't, as I find it a bit annoying. I would definitely ensure that "Watches and Balloon Evaluation" is not checked. This option causes NetBeans and the debugger to destabilize. If you need a watch, hack a local variable into the PHP code where you need it, and you'll see it on the "Variables" tab when the debugger is running. Also, confirm that file (index.php) is specified in the project's Run Configuration > Index File.
Since you see xdebug in phpinfo(), that end of it is fine. Just make sure that all of the values look reasonable, and that there is some reference to a cookie "XDEBUG_SESSION=netbeans-xdebug" somewhere on that page. (Make sure that you don't have cookies turned off on the browser!)
The only other thing to check is to see if some firewall/security program is running that would be blocking TCP/UDP locally (which would be super-odd, but not out of the realm of possibility), or that port 9000 isn't already used by another application. I am using a different port number in my local setup for some reason. I don't remember changing it, but I am sure that the only reason I would have is if I had hit a port conflict with something else.
One last thing... We've been assuming that you are running NetBeans and the web server on the same computer. That's a common configuration, but not the only one. If your web server is on a different computer, then change the localhost in xdebug.remote_host=localhost to the IP address of the computer on which NetBeans is running.
Another last thing: When cycling through frustrating iterations, until you see xdebug info in phpinfo(), restart apache/php. Once there, still restart NetBeans between iterations. And believe it or not, restart your browser.
For me it was changing
;xdebug.remote_enable = 0 (default value in clean XAMPP installation)
to
xdebug.remote_enable = 1
did the trick
Adding an index.php did the trick for me.
I couldn't figure out why some of my projects would connect to the debugger and others wouldn't. Then I realized that the ones that wouldn't connect started with index.html. Once I renamed these files to index.php, the debugger connected with no problem.
I solved this using a windows -> remote LAMP server config after reading the following post, leaving the link in case anyone finds it handy:
http://stuporglue.org/setting-up-xdebug-with-netbeans-on-windows-with-a-remote-apache-server/comment-page-1/#comment-6227
Having just upgraded to the new Ubuntu 14.4 my NetBeans Xdebug stopped working. I've followed all the answers above to date to no avail.
I found a NetBeans Ubuntu statement that the /etc/php5/cli/conf.d/xdebug.ini file should have xdebug.remote_enable=on. When I checked the /etc/php5/cli/conf.d directory, I found no xdebug.ini file. However there was a link to /etc/php5/mods-available/xdebug.ini there.
Subsequent adding the xdebug.remote_enable=on to that file fixed the problem.
PS - This works on NetBeans 8.0.1
When I tried to debug the Yeoman WebApps powered by PHP backend in Netbeans, the status keep showing 'Waiting for connection'. There's probably because the index.html has nothing to do with php at all. It's only when I've triggered the ajax which needed PHP processing, the connection with xdebug immediately connected and debug as usual. Hope this give another perspective to someone as I have stumbled to 'think' there is a problem and trying to fix the ini.
An alternative is the Dephpugger project. Is like ipdb in python or byebug in Ruby.
https://github.com/tacnoman/dephpugger
Is very easy to use.

http://localhost/ not working on Windows 7. What's the problem?

I have a big problem opening http://localhost/ on Windows 7 (beta). I installed this os and everything went great; when I installed Wamp I saw that localhost is not working at all. I just see this error:
Failed to Connect
Firefox can't establish a connection to the server at localhost.
in Mozilla and Explorer.
I removed Wamp and after some weeks (that means two weeks from today) I installed NetBeans on Windows 7. I created a test PHP script and when I debug it, I get the same error again. I tried to access it with ip 127.... but still the same. What is the problem?
When i installed NetBeans I installed it in port 8080.
If you installed it on port 8080, you need to access it on port 8080:
http://localhost:8080 or http://127.0.0.1:8080
To fix the port 80 problem do:
From cmd as administrator:
sc config http start= demand (you need a space after the equal sign and not before)
Reboot
Run the command (netsh http show servicestate) as administrator to check that the port 80 is in use
After you have run this command, you can disable http.sys as follows:
net stop http (stop the process)
Sc config http start= disabled (if you want to disable the service forever)
it works for me.
Edit your C:\Windows\System32\drivers\etc\hosts file
Make sure there is an entry that looks like this:
127.0.0.1 localhost
If there is an entry like
:: localhost
Comment it out to look like this
\#:: localhost
This should fix your problem, I've had this problem in the past.
For me, it was skype causing the problem. Once I stopped skype, everything worked. I have 1.7.1 xampp (mysql and apache) running on Windows 7 x64.
It sounds like you have no web server running at all anywhere.
Have you tried enabling IIS and using it to display a basic html file first?
Programs & Features -> Turn Windows Features On/Off -> Internet Information Servcies
Then, place your html file in C:\inetpub\wwwroot\index.html and browse to http://localhost.
Once this works, try to get WAMP/php working. Be careful of port conflicts.
My initial thought is that you are missing an entry in the hosts file. Something like "127.0.0.1 localhost", however, you mention that you are getting a 404 error. That means that the webserver is connecting to your client/browser and responding to the request for a particular webpage.
I'm not familiar enough with Windows 7, however, I'm pretty sure that it does not include a webserver by default. Also, unless you actually code, build and run a webserver application using netbeans you're not going to get the desired response.
When it comes down to it.... your issue is going to be one of the following:
1) you're serving static documents and the webserver is not configured to serve the files from whatever the proper DOCROOT should be. This includes PUBLIC folders in the user's directories. (the basic apache install include a basic homepage)
2) you have a dynamic webserver application where the controller is looking at the application path in order to decide what page to display or what function to execute. (see MVC - Controller). Basically incomplete implementation.
3) yet another configuration error: your website might actually define a virtual domain. (something other than localhost) so when you look for localhost in the URL the server might not be configured to provide a default page.
Uncommenting the following line in host file worked for me,
#127.0.0.1 localhost
Well you are getting a 404, so the web server is running, it just can't find the file.
Check the http.conf file. If it pointing to the right root directory?
If you are using different ports, then check http.conf to see if Apache is listening on the right port, or if apache is redirecting traffic on the port to anther root directory.
Maybe posting your http.conf file might help?
If you're still having this problem, try this:
Edit your hosts file (with elevated privileges)
Uncomment the line "#127.0.0.1 localhost" (ie- remove the #)
Save the file as is. hosts with no extension
In Win7 MS has decided to comment the localhost line with that msg that says it's handled in dns. I'm still not exactly clear what they're getting at, except maybe that they're telling folks to use dns for localhost resolution instead of the hosts file. Probably safer that way, anyway.
Yea, this was a pain for me as well.
So what i did was find the "Start Wampserver", just hit the start button and type it in.
Then right click on it , select properties.
I set it to run in XP servive pack 3 on the capatability tab.
I also checked the box "Run this program as an administrator".
Then I right clicked the WAMPSERVER on the System Tray, and re-started all services.
This worked perfect for me, hope this will help you as well.
Rob
Got any other Programs running ? msn ect... ? some bind to port 8080 then your webserver wouldnt start and would cause a 404 , try binding it to a different port 80 which its default should be
I got a 404 could not connect error then I set wampmanager.exe to run as Xp Sp3 and it seems to be working fine this can be done by
Right Clicking on it
Properties
click tab labled "Compatibility"
Tick Box just undeder "Compatibility
mode"
Select Windows XP (Service Pack 3)
Click Apply then OK
It was Skype interfering for me too. I changed the Skype settings (in Skype go to Tools > options > advanced > Connection and UNCHECK "use port 80 and 443 as alternatives for incoming connections") save then close Skype. I have Win 7 HomePremium 64 bit, had installed Xampp fine with MySQL running fine, but no matter how many times I started Apache (and console showed "Apache started") I still got the "firefox can't establish a connection" error in the browser. After Skype changes were saved, Apache showed the green "Running" and all working now thanks
For me this did the trick at port 80 in the end:
You have to disable the http.sys service manually via the registry:
Launch RegEdit:
Go to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP
Add a new DWORD (32-bit) value
Name it ‘NoRun’ not including the quotes
Double click the new property
In the Value data field type ’1' not including quotes and click OK
Re-boot your computer
You should now find that Apache will start on port 80!
Have you try the iis? Go to Control Panel->Programs and Features->Turn Windows features on or off (side bar). Try installing or reinstalling the Internet Information Service. I've a windows 7 with iis, with .net and php, and it works great...
you have to install the service, go to wamp->Apache->Service->Install service, then a command prompt window will pop up, then press enter, and after a few seconds go to the same route Services-> and click Start/Resume service, and you ready
I had the exact same issue, and the solution is what someone has already said:
In the taskbar, click on the WAMP icon.
Go to Apache-->Service-->Install Service
Then go back by clicking and selecting Apache-->Service-->Start/Resume Service
This will allow the localhost function to work (keep in mind I had already changed the host file located under c:\windows\system32\drivers\etc to remove the # from the 127.0.0.1 line)
If you need to edit that file still, you need to right click on it and select Properties. Then go to the Security tab, and click the Advanced button. You then need to select the Users, click Edit and select "Full Control". This will enable you to edit it.
That being said, you need to ALSO install the MySQL service following the same procedure.
MySQL-->Service-->Install Service
Then go back by right clicking yet again and selecting MySQL-->Service-->Start/Resume Service.
And that should fix it all up in Windows 7!
Before installing Wamp, go to controlpanel=> Adminstrative tools => IIS Manager and turn off the IIS server. Install wamp and everything works fine. When IIS is on it also uses port 80. You can go through a lot of changing the ports and permissions for wamp but I have found this the quickest and easiest method of getting wamp to run successfully.
Try adding the following tags in the wwwroot folder web.config file. These tags should be added as a child of the configuration tags as below.
-configuration-
--system.webServer--
---validation validateIntegratedModeConfiguration="false" ---
--/system.webServer--
-/configuration-
Maybe Skype or other Application is using port 80.
This you can check in
Tools->Settings->Advanced->Connection
See the above solutions are very good.But whenever you get this 404 eroor,first see this.I am sure the problem will be solved...
Just go to httpd.conf file by clicking wamp server symbol in bottom right taskbar-Apache->httpd.conf... or c:\\wampt\\bin\\apache\\apache2.2.1\\conf\\httpd.conf and approximate on line no 46 you will find "Listen 80"...just make sure it is written "80" after Listen...if it not then change it to 80...And your problem will be solved...
Assuming there is no problem doing a lookup on localhost (to 127.0.0.1), you need to make sure your server is listening to 127.0.0.1.
netstat works in both windows an UNIX. You probably need "netstat -a" to display listeners.

Categories