Issue :

While trying to access any IP on a server, following error occurs :

404 Not Found
The server can not find the requested page:
SERVER-IP/cgi-sys/defaultwebpage.cgi (port 80)

Solution :

This is a bug in the latest cPanel release. Try either of the following 2 solutions :

1. (Recommended by cPanel)

/scripts/upcp –force
/scripts/autorepair userdir_enable_fix
/scripts/restartsrv_httpd

2. If the above doesn’t resolve the issue then :

Change cPanel to EDGE tree from WHM >> Update Config and run a cPanel update.
/scripts/upcp –force

If none of the above works for you then submit a ticket to cPanel. Their friendly and knowledgeable staff would take care of it!

Source : WHT

Issue :

Following message occurs every time when trying to connect to an own dedicated server from other servers.

Access Denied: Referrer Check

Functions in cPanel / WHM are available only directly through the cPanel and WHM interfaces or through our XML API. It appears that this request is coming from a referring site and might be malicious. Administrator Note: If new ips
were recently bound to this server manually you must restart cpsrvd.
If you wish to continue to this page, you may do so but please note that allowing other sites to tell you which actions to perform in cPanel / WHM could be a security risk. Continue at Your Own Risk!

Fix :

The message says it all. Isn’t it?

But if you still want to prevent this message from coming up every time you try to connect then disable the following option in WHM >> Tweak Settings >> Security section :

Only permit cpanel/whm/webmail to execute functions when the browser provided referrer (Domain/IP and Port) exactly matches the destination URL. This will help prevent XSRF attacks, but may break integration with other systems, login applications, and billing software. Cookies are required with this option enabled.

Issue :

Account was renamed from abc.com to xyz.com. After renaming, when trying to delete an old email address ( test@abc.com), following error occurs :

“The e-mail account test@abc.com was successfully deleted.
Sorry, you do not have access to the domain abc.com”

Fix :

Check the file /home/user/.cpanel/email_accounts.yaml and remove any entries pertaining to the old domain. This should fix the issue!

Issue :

Following error occurs when trying to add a domain to a cPanel account :
Please transfer the domain to this server’s nameservers or have your admin add one of its nameservers ips to /etc/ips.remotedns and make the proper A entries on that remote nameserver.

Solution :

To get around this, add the remote name server IP to the file ‘/etc/ips.remotedns’ via WHM >> Main >> IP Functions >> Configure Remote Service IPs >> Remote DNS IPs

The system will allow users to create parked/addon domains if the nameserver IP is listed in this file.

Issue :

Domain does not exist error message occurs when accessing the web directories of a domain in Plesk.

The following error message is displayed in ‘Web Directories’ when accessing it from the domain management section :

WebServerManager::getWebDirs() failed: websrvmng failed: Site domain.com doesn’t exist

———————————Debug Info———————————————-
0: C:\\Program Files\\SWsoft\\Plesk\\admin\\htdocs\\domains\\webdirs\\webdirs.php:48 psaerror(string “WebServerManager::getWebDirs() failed: websrvmng failed: Site domain.com doesn’t exist”)

Solution :

The error message means that domain.com is either absent or not configured in IIS. The site needs to be configured using the following commands:

“plesk_bin\websrvmng.exe”—remove-vhost—vhost-name=domain.com
“plesk_bin\websrvmng.exe”—reconfigure-vhost –vhost-name=domain.com

Issue :

While trying to send email, following error occurs in Horde/Squirrelmail :
535 Incorrect authentication data

Fix:

This usually occurs when the option “Allow mail account authentication using the password of the domain owner’s account” in WHM -> Server Configuration -> Tweak Settings is enabled.
Webmail logs you in but attempts to use the cPanel account password via SMTP. Hence. the problem.

Disable the option and check.
If this does not fix the issue then try running /scripts/upcp

Error :

You might come across the following error in the apache error logs :

mod_security: Access denied with code 403. Error reading request body, error code 70007:
The timeout specified has expired

Fix :

1. Open the Apache configuration file.

root@server1 [~]#vi /usr/local/apache/conf/httpd.conf

2. Change the Timeout value to 300

# Defined in /var/cpanel/cpanel.config: apache_port
Listen 0.0.0.0:80
Timeout 300
User nobody
Group nobody

3. Restart Apache.

root@server1 [~]# /etc/init.d/httpd restart

This should fix the issue.

Issue :

While trying to add a sub-domain through cPanel, the following error occurred :

Error from domain wrapper: my.domain.tld is owned by another user.

Cause :

This  happens if cPanel did not remove the entries correctly when you deleted the sub-domain.

Fix :

Check and remove the entries for the sub-domain from the following locations :

1. Remove any entries pertaining to the sub-domain in /var/cpanel/userdata and /var/cpanel/users

Note : Do run /scripts/updateuserdomains because you are editing the file manually.

2. Remove the sub-domain entries from /var/named/domain.tld.db

3. Remove the VirtualHost entry for the sub-domain in /usr/local/apache/conf/httpd.conf

4. Remove any entry for the sub-domain in /etc/named.conf

Once these are removed, you should be able to add the sub-domain through the control panel.

Issue :

While trying to delete a parked domain , you might get the following error :

Error from park wrapper: You cannot unpark a user’s main domain name.

Fix :

Just go to the following location :

cd /var/cpanel/userdata/username/

vi main

Delete the ‘ServerAlias’  entry corresponding to the domain you want to remove.

Now you should be able to remove the parked domain through the control panel.

Issue :

The site was throwing up ’500 internal server error’ and the following error appeared in the apache error logs.

FastCGI: incomplete headers (0 bytes) received from server “/home/httpd/vhosts/default/fcgi-bin/phpfcgi”

Fix :

If you are getting  this error then it means that no headers are being returned when a request gets through to dispatch.fcgi

Possible reasons (and solutions) for this error are:

Session files are not configured correctly – This usually happens when moving between different server types. Delete the sessions in your /tmp folder. Execute the following command  and try again.

killall -usr1 dispatch.fcgi

Missing AddHandler – The error occurs when the AddHandler given below is missing from httpd.conf AND and the user doesn’t have it in his app’s .htaccess either.

AddHandler fastcgi-script .fcgi

Issue :

Error: 553 failed authentication error in Squirrel mail.

Fix :

Get into the configuration file :
/usr/local/cpanel/base/3rdparty/squirrelmail/config/config.php

Change
$useSendmail = false;

to
$useSendmail = true;

This should fix the issue!

Issue :

When attempting to start Apache,if you get the following errors :-

[error] mod_ssl: Child could not open SSLMutex lockfile
/usr/local/apache/logs/ssl_mutex.16479 (System error follows)
[error] System: Too many open files (errno: 24)

Fix :

This is caused by Apache and RedHat setting their open file limits too low. To correct this you will need to do the
following:

Edit /usr/local/apache/bin/apachectl and add the line on top

ulimit -n 16384
stop and start apache:
/usr/local/apache/bin/apachectl stop
/usr/local/apache/bin/apachectl startssl

400 – Bad request

What does it mean?

There’s something wrong with the URL you typed. Maybe the server you’re contacting doesn’t recognize the document you’re asking for, maybe it doesn’t exist, or maybe you’re not authorized to access it.

What can you do about it?

Check the URL. Pay special attention to uppercase and lowercase letters, colons, and slashes. Here’s a tip: one style convention many sites observe is to slap initial capital letters on directory names but not file names. If you get this message repeatedly, maybe  you copied the URL and mixed up its uppercase and lowercase.

—————————————————————————-
401 – Unauthorized

What does it mean?

You’re probably accessing a site that’s protected and you’re not on the host’s preferred guest list or you typed the password incorrectly. Some sites also put a block on domain types–if you’re not from a .gov or .edu domain, for example, you may not be able to gain access.

What can you do about it?

If you’re sure you’re allowed in, try again, and this time look at the keyboard when you type. Passwords are often case-sensitive, so if you’ve got your Caps Lock on, take it off. If you’re trying to break in, we don’t want to know, but the odds are stacked against you.

—————————————————————————-
403 – Forbidden

What does it mean?

You may not be allowed to access this document, probably because it’s either blocked to your domain or it’s password-protected.

What can you do about it?

If you know the password, try again, carefully. If you don’t know the password but think you’re eligible for one, contact the site’s Webmaster and ask for it.
—————————————————————————-
404 – Not found

What can you do about it?

Try going one level up (deleting the last part of the URL to the nearest slash) to see if the site is live. If it is, check if there are links to the document you’re looking for. Failing that, delete the last slash and type .html instead, and see what that gives you.

—————————————————————————-
503 – service unavailable

What does it mean?

There are a variety of possibilities: your access provider’s server may be down, your company’s gateway (the connection between the LAN and the Internet) may be broken, or your own system isn’t working.

What can you do about it?

This is usually an easy one: wait a minute and try again. If the error persists, identify the culprit (access provider, gateway, or your system) by process of elimination.

—————————————————————————-

Bad file request

What does it mean?

Your browser supports forms complete with data-entry fields and drop-down lists, but not the form you’re trying to access. Perhaps there’s an error or unsupported feature in the form.
—————————————————————————-

Cannot add form submission result to bookmark list

What does it mean?

You’ve just entered a search request and tried to save the result as a bookmark. Though it may appear as a discrete address, the result isn’t a legitimate URL, so you can’t add it to your bookmark list.

What can you do about it?

Try saving the result page as an HTML page on your hard disk. Use the Save As command then add the saved page to your bookmark list. Depending on the CGI script behind the query, you may or may not be successful. But it’s worth a try.

——————————————————————————–

Connection refused by host

What does it mean?

You may not be allowed to access this document, probably because it’s either blocked to your domain or it’s password-protected.

What can you do about it?

If you know the password, try again, carefully. If you don’t know the password but think you’re eligible for one, contact the site’s Webmaster and ask for it.
—————————————————————————-

Failed DNS lookup

What does it mean?

The domain name system can’t translate the URL to a valid Internet address. This is either a harmless blip or the result of a mistyped URL (specifically, a mistyped host name).

What can you do about it?

Blips in DNS lookup are common, and often you can rectify this by clicking the Reload button. If that doesn’t work, check your typing of the URL carefully. If the problem persists, try again after an hour or so.

—————————————————————————-

File contains no data

What does it mean?

The site you’ve accessed is the right one, but there are no Web page documents on it. You may have stumbled upon this site just as updated versions are being uploaded.

—————————————————————————-

Helper application not found

What does it mean?

Your browser doesn’t recognize a file at the Web or Net site you’re visiting. Most browsers can be extended using helper applications (or viewers) to read files they don’t otherwise recognize. These files aren’t necessarily graphics–they can be sound files, movie clips, or ZIP or SIT archive files you’re trying to download.

What can you do about it?

The dialog box that carries this message will usually give a clue about the file type that’s missing. (You may see some gibberish about octet streams, but after that you’ll probably see some reference to graphic-TIFF, which gives it away.) Look at CompuTREK’s Help for your computing platform (Mac or PC) for viewers for the most common file types. Then follow your browser’s instructions for assigning a viewer for each file format you wish to view online.

—————————————————————————-
Host unavailable

What does it mean?

The machine that hosts this site is probably down for maintenance.

What can you do about it?

If at first you don’t succeed, hit Refresh or Reload again and again. But wait a while between refreshes.
—————————————————————————-
Host unknown

What does it mean?

The server may be down for maintenance, or you may have lost the connection (your modem disconnected, or your company’s T1 line is choking).

What can you do about it?

Hit the Reload button first. This is often a blip in the Net. Then check the URL for typos (and don’t forget case-sensitivity). Then make sure you’re connected by hitting Reload, which will re-establish connections in many cases.

—————————————————————————-

Network connection was refused by the server

What does it mean?

The server is probably too busy to handle one more user, but it’s not configured to generate its own message, so this generic message shows up instead.

—————————————————————————–
NNTP server error

What does it mean?

You’re trying to log on to a Usenet newsgroup, but you can’t get to it. The Usenet server is something that’s made available by your Internet service provider, so it may be that this newsgroup isn’t available at all.

What can you do about it?

Make sure you’ve typed the URL correctly. If that doesn’t help, try again later.