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Tweak Settings

This document pertains to cPanel 11.25. For cPanel 11.24 documentation click here.

On this page, you can configure a number of settings related to the functionality of cPanel, WHM, and associated services.

To enable an option, make sure the checkbox next to that option is checked, and then click on the Save button at the bottom of the screen.

note Note: The following options are in the same order as they appear on the Tweak Settings page.

Display

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The login theme to display for cPanel Login.

Enter the name of your desired login theme — the theme your cPanel users will see on the login screen, as they sign into their accounts. (This is separate from your cPanel theme, WHM theme, or webmail theme.) You can view the available themes by clicking the Universal Theme Manager link.

Number (or all) of accounts to display per page in list accounts.

Specify the number of user accounts you wish WHM to display per page when you access the List Accounts feature. You may also enter all to view all of your accounts.

Domains

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Allow users to park subdomains of the server's hostname main domain.

For example, if your main domain name is example.com, this would allow a user to redirect user.example.com visitors to that user’s website.

Allow users to Park/Addon Domains on top of domains owned by other users.

Using this option, you can allow users to park domains, or create addon domains, owned by other users on your server.

ALERT! Warning: Clicking this box is discouraged as it would allow users to park domains on top of domains they do not own.

Allow creation of Parked/Addon Domains that resolve to other servers.

This option allows users to park domains or create addon domains that resolve to other servers.

ALERT! Warning: Clicking this box is strongly discouraged, as it could create a major security problem. If you must allow this, be sure not to let users park common Internet domains.

Allow resellers to create accounts with subdomains of the server's hostname main domain.

This option allows resellers to create subdomains of the server's main domain. For example, if your main domain name is example.com, this would allow a reseller to redirect user.example.com visitors to the reseller’s website.

Allow Creation of Parked/Addon Domains that are not registered.

Click the checkbox to let users create parked and addon domains that are not registered with a valid registrar.

Automatically create A entries for the registered nameservers.

By enabling this option, A entries are automatically created for new domains' nameservers, if they would be contained in the same zone. An A entry is the DNS record responsible for resolving hostnames to IP addresses.

Prevent users from parking/adding on common internet domains.

Enabling this option prevents users from parking on or adding common Internet domain names.

PICK Important: Clicking this box is strongly encouraged.

Check zone file syntax when saving and syncing zones.

When this option is enabled, WHM will check zone file syntax when saving and syncing zones. This ensures that the data is written to the file correctly when saving DNS information.

Application for processing DNS requests.

Leave the box blank to use WHM's default application for processing DNS requests (dnsadmin). If you would prefer to use a different application, enter the path to the application in the available field.

Add proxy VirtualHost to httpd.conf

This option will automatically create entries that redirect visitors to the correct port when they access the following subdomains:

  • cpanel.example.com
  • webmail.example.com
  • webdisk.example.com
  • whm.example.com

note Note: This feature requires mod_rewrite and mod_proxy.

Automatically create proxy subdomain DNS entries.

Enabling this option will allow WHM to automatically create DNS entries for the following 4 subdomains for every user’s account (where example.com stands for the user’s domain):

  • cpanel.example.com
  • webmail.example.com
  • webdisk.example.com
  • whm.example.com

note Note: These subdomains allow users to easily access the features included with a cPanel installation.

PICK Important: You must add DNS entries for these subdomains to work. You may use /scripts/proxydomains to create DNS entries manually.

Allow users to override automatically generated proxy subdomains.

Enabling this option allows users to create their own subdomains that override the cpanel, webmail, webdisk, and whm subdomains that are automatically generated. This means, for example, a user would be able to direct visitors accessing cpanel.example.com to a web page he configures, such as mycontrolpanel.example.com.

Prevent users from creating subdomains outside of their public_html directory.

Enabling this option allows users to create subdomains outside their individual ~/public_html/ directories.

Ignore configured nameservers and set the NS line to the authoritative ones.

Click the checkbox to ignore nameservers specified when adding registered domains. Enabling this option causes the domain's authoritative (registered) nameservers to be used instead.

Logging

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Log dnsadmin requests to /user/local/cpanel/logs/dnsadmin.log

Enabling this option will cause any requests sent to or from dnsadmin to be logged in the following log file:

Enable verbose DNS zone syncing

Enabling this option will cause DNS information to be printed to the command-line interface whenever DNS zones are syncronized.

PICK Remember: This feature is intended for testing purposes only. Do not enable this option on production servers.

Mail

PICK Important: Any changes made to SpamAssassin's configuration may require you to run the following script before your changes take effect:

  • /usr/bin/sa-compile
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Catch-all/default address behavior for new accounts.

Choose how you would like to configure your catch-all/default address behavior. The catch-all or default address handles email sent to nonexistent users on your server's domains. It is useful to keep in mind that spammers frequently use Directory Harvest Attacks to try to guess recipient usernames at known domains. Thus, a domain may receive a large number of spam messages sent to nonexistent users, costing you server resources.

  • fail — Checks for the intended email recipient and, if no matching recipient is found, denies the SMTP request before downloading the message.
    • note Note: This option is recommended.
  • blackhole — Discards the message after downloading it. This option uses system resources.
  • localuser — Allows users to set up their own catch-all email addresses. These email accounts will mainly serve to collect spam.

Silently Discard all FormMail-clone requests with a bcc: header.

Using this option, you can silently discard all email messages sent from the FormMail clone application with a bcc: header. These messages are typically spam.

Allow mail account authentication using the domain owner's password.

This option allows a user to sign into any email account on his domain using the account owner's system password.

Number of minutes between mail server queue runs.

In the box, enter the number of minutes between mail server queue runs. In a queue run, the mail server checks to see whether new messages need to be delivered. New mail will wait in the queue if, for example, it is undeliverable or it exceeds the maximum number of messages a user can send in the allotted time.

Track the origin of messages.

This option lets you track the origin of messages sent through your mail server software, if you are using Exim 4.34 or later. This option adds X-Source headers to email messages sent from a PHP script on your server, detailing the script's location. It can be useful for locating insecure email scripts being abused by spammers.

The maximum each domain can send out per hour.

In the box, enter the maximum number of email messages that each domain on your server will be permitted to send per hour. Entering 0 in this field allows each domain to send an unlimited number of emails.

Prevent the user nobody from sending out mail.

You can use this option to prevent the system user nobody from sending mail to addresses that are not hosted on your server. Nobody is the default system account under which PHP and CGI will run. This option can be useful when attempting to prevent spammers from using CGI or PHP on your server to generate outgoing mail. If you would like to see the user who is executing PHP or CGI, you will need to activate PHPsuEXEC or suEXEC respectively.

Include a list of Pop before SMTP senders.

Selecting this option will include a list of email addresses belonging to the user in the headers of his outgoing emails. POP before SMTP is an email protocol that allows users to check email from different IPs. When this option is enabled, your mail server will append a list of email addresses the user checks using this protocol to the outgoing email's POP-before-SMTP header. As this measure may compromise the privacy of your users, enabling it is not recommended unless absolutely necessary.

note Note: This feature requires exim 4.34-30 or later.

BoxTrapper Spam Trap

This option enables the BoxTrapper spam trap. BoxTrapper requires incoming mail to be verified by the sender before it is delivered to the recipient's inbox.

Horde Webmail

Click the checkbox to enable Horde webmail. Horde is a webmail client, which allows users to check email through a web browser rather than an email client. For more information, see http://www.horde.org/imp/.

Mailman

This option lets you enable Mailman. Mailman handles mailing lists in the cPanel/WHM interface, allowing you to send mail to multiple accounts while addressing mail to a single email address. For more information, see http://www.gnu.org/software/mailman/index.html.

RoundCube Webmail

Select this option to enable RoundCube Webmail. RoundCube is a webmail client, which allows users to check email through a web browser rather than an email client. For more information, see http://roundcube.net/.

SpamAssassin Spam Filter

This option lets you enable the SpamAssassin spam filter. SpamAssassin blocks spam by scanning incoming mail for spam-like traits and assigning each message a score. If incoming mail exceeds your predefined score limit, the mail will be discarded or placed in a special folder (see below). For more information, see http://spamassassin.apache.org/.

SpamAssassin Spam Box

Select this option to enable the SpamAssassin spam box. This feature will store incoming mail that has been marked as spam to a special folder. This is useful in preserving mail that may have been mislabeled as spam.

SquirrelMail webmail

Using this option, you can enable SquirrelMail webmail. SquirrelMail is a webmail client, which allows users to check email through a web browser rather than an email client. For more information, see http://www.squirrelmail.org/.

Add the mail. prefix for mailman URLs.

Click the checkbox to add the mail. prefix to Mailman URLs. For example, if your domain is example.com, you would log into your Mailman mailing list software at http://mail.example.com/mailman.

Notifications

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Notify the admin when an account has reached the "critical" Disk Usage state.

Select this option to notify the administrator or reseller when an account reaches the "critical" disk usage state. (See below to define the “critical” state.)

Threshold percentage is considered to be in the "critical" state.

In the box, type the percentage of a user's disk space that must be occupied for the account to be considered "critical." Typing 0 in this box will disable this warning.

Notify the admin when an account has reached the "full" Disk Usage state.

This option will automatically notify the administrator or reseller when an account reaches the "full" disk usage state. (See below to define the "full" state.)

Threshold percentage is considered to be in the "full" state.

In the box, type the percentage of a user's disk space that must be occupied for the account to be considered "full." Typing 0 in this box will disable this warning.

Notify the admin when a mailbox's disk usage has reached the "warn" state.

Enabling this option will notify the administrator or reseller when an account reaches the "warn" disk usage state. (See below to define the "warn" state.)

Threshold percentage is considered to be in the "warn" state.

In the box, type the percentage of the user's disk space that must be occupied for an account to be considered in the "warn" state. Typing 0 in this box will disable this warning.

Notify the admin when a mailbox's disk usage has reached the "critical" state.

In the box, type the percentage of the user's mailbox that must be occupied for an account to be considered "critical." Typing 0 in this box will disable this warning.

Notify the admin when a mailbox's disk usage has reached the "full" state.

Specify the percentage of the user's mailbox that must be occupied for an account to be considered "full." Typing 0 in this box will disable this warning.

Notify the admin when a mailbox's disk usage has reached the "warn" state.

Here you can specify the percentage of the user's mailbox that must be occupied for an account to be considered in the "warn" state. Typing 0 in this box will disable this warning.

Email users when they have exceeded their bandwidth.

Click the checkbox to allow users to receive the bandwidth limit warnings configured below. To send any automatic bandwidth limits notifications to your users (including those who have not yet exceeded their limits; see below), you must select this box.

Email users when they have reached 70% of their bandwidth.

This lets your server automatically send an email notification to users who have used 70% of their allotted bandwidth.

Email users when they have reached 75% of their bandwidth.

Enable this option if you would like users who have used 75% of their bandwidth to automatically receive an email notification.

Email users when they have reached 80% of their bandwidth.

Selecting this option automatically sends an email notification when users have reached 80% of their allotted bandwidth usage.

Email users when they have reached 85% of their bandwidth.

Enable this option if you would like to send an automatic email notification to users who have used 85% of their allotted bandwidth.

Email users when they have reached 90% of their bandwidth.

Click the checkbox if you would like users who have used 90% of their allotted bandwidth to automatically receive an email notification.

Email users when they have reached 95% of their bandwidth.

When you enable this option, users who have used 95% of their allotted bandwidth will automatically receive an email notification.

Email users when they have reached 97% of their bandwidth.

Clicking this checkbox will automatically send an email notification to users who have reached 97% of their allotted bandwidth usage.

Email users when they have reached 98% of their bandwidth.

Selecting this option will automatically notify users who have used 98% of their allotted bandwidth.

Email users when they have reached 99% of their bandwidth.

Enable this option if you would like users who have reached 99% of their allotted bandwidth usage to automatically receive an email notification.

Mail Box Usage Warnings

This option allow users to receive the mailbox usage warnings configured above. These warnings will be sent at regular intervals until the mailbox is in compliance, or the quota is raised.

Disable Suspending accounts that exceed their bandwidth limit.

Click the checkbox to disable WHM from suspending accounts that exceed their bandwidth limits. Selecting this option disables all bandwidth notification emails, and unsuspends any currently suspended accounts.

Disk Space Usage Warnings.

Enable this option to allow users to receive the disk space usage warnings configured above. These warnings will be sent at regular intervals until the user's disk usage is in compliance, or the quota is raised.

PHP

The following 5 options configure PHP scripts run by your users' cPanel accounts. To configure how your server handles PHP more generally, see the PHP Configuration Editor.

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PHP max execution time

In the box, enter the maximum time, in seconds, your server will allow cPanel PHP scripts to execute. This prevents scripts from tying up the processing power of your server. The default value is 90 seconds.

PHP Max Post Size

Specify the maximum amount of data, in Megabytes, PHP is allowed to accept from post requests through Apache. A post request ultimately consists of a user giving input to a program — in this case, a cPanel PHP script. The highest value you can enter is 2047 Megabytes.

cPanel PHP Register Globals

Click the checkbox to allow the Environment, GET, Post, Cookie, and Server variables to be registered as global variables (variables accessible at every level of the cPanel application). This feature is disabled (unchecked) by default.

ALERT! Warning: This is a deprecated feature that, if enabled, can pose serious security risks for your server. Leaving this option unchecked is strongly recommended.

PHP Max Upload Size

Enter the maximum file size for a cPanel upload in Megabytes in the available field. The default setting is 50 Megabytes. The highest value you can enter is 2047 Megabytes.

Loader to use for internal cPanel PHP

Click the button corresponding to the PHP loader you wish for cPanel to use when executing internal PHP scripts. If you are running cPanel 1.x or 2.x, click oldsourceguardian. If you are running a later version of cPanel, you may use the loader of your preference. However, you will need to install the loader in the proper directory.

Redirection

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Always redirect users to the ssl/tls ports.

Here, you may choose to redirect users to the proper SSL/TLS ports when they access the following URLs. (Below, example.com stands for the user's domain name.)

  • www.example.com/cpanel
  • www.example.com/webmail
  • www.example.com/whm

This will prevent users from sending their passwords to these links without encryption.

When visiting /cpanel or /whm or /webmail WITHOUT SSL.

Click the button to determine whether to redirect users who log in without SSL to a URL including the hostname of the server, or the user’s origin domain name. This rule applies when a user is visiting:

  • www.example.com/cpanel
  • www.example.com/webmail
  • www.example.com/whm

When visiting /cpanel or /whm or /webmail with SSL.

Specify whether to redirect users who log in with SSL to a URL including the server’s SSL certificate name, the hostname of the server, or the user’s origin domain name. This rule applies when a user is visiting:

  • www.example.com/cpanel
  • www.example.com/webmail
  • www.example.com/whm

Redirect user to the following URL upon logout.

In the text box, enter the URL of the web page to which you would like to redirect users when they log out of cPanel. If you leave the box blank, they will be redirected to the default logout page.

SQL

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When displaying disk usage in cpanel/WHM include Postgresql and MySQL.

When enabled, database disk usage will be used included in the total when disk usage is being displayed in cPanel or WHM.

note Note: This feature requires MySQL 5 or later.

MySQL Version

Select your preferred MySQL version. Default installations will only come with version 5.0; however, you may choose to install additional MySQL versions, if needed.

PICK Remember: that upgrading is not always reversible; you should back up your databases if you think you may wish to downgrade in the future.

Use old style (4.0) passwords with MySQL

Click the checkbox to enable old style (4.0) passwords with MySQL versions 4.1 and later. This may be required on servers that experience difficulty with PHP authentication.

PICK Remember: Access and run Update Server Software, then EasyApache (Apache Update), to cause your changes to take effect.

Security

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Validate the IP addresses used in all cookie based logins.

Enabling this option helps to prevent attackers from capturing cPanel session cookies in order to gain access to cPanel and WHM interfaces.

PICK Remember: For this setting to have maximum effectiveness, you will need to disable proxy domains.

Allow WHM/Webmail/cPanel services to create core dumps for debugging purposes.

Enabling this option may help you to debug certain types of service crashes.

note Note: Core dumps often contain sensitive information. If this option is disabled, make sure that these core dumps are secure.

Send passwords in plain text over email.

Enabling this option automatically sends new users their passwords in plain text over email when their accounts are created.

ALERT! Warning: As enabling this option is a security risk, we recommend leaving this box unchecked.

Only permit cpanel/whm/webmail to execute functions when the browser provides a referrer.

Click the checkbox to limit the functions that cPanel and WHM perform by requiring that each attempt to submit data to cPanel or WHM provide a referring URL. Enabling this option will increase your server’s security, but may cause problems with external software such as billing and login applications.

note Note: The visitor or querying application must have cookies enabled in order for this feature to take effect.

Only permit cpanel/whm/webmail to execute functions when the browser provided referrer (Domain/IP and Port) exactly matches the destination URL.

Click the checkbox to limit the functions that cPanel and WHM perform by requiring that each attempt to submit data to cPanel or WHM come with a referring URL whose domain or IP and port number exactly match those of the destination URL. Enabling this option will increase your server’s security, but may cause problems with external software such as billing and login applications.

note Note: The visitor or querying application must have cookies enabled in order for this feature to take effect.

Require SSL for all remote logins to cPanel, WHM, and Webmail.

Enabling this option requires that passwords and other sensitive information use SSL encryption when the information is exchanged between client and server.

Disable HTTP authentication for cPanel/WebMail/WHM logins.

Enabling this option forces users to use cookie authentication. This helps to prevent certain types of cross-site request forgery (XSRF) attacks that rely on cached HTTP authentication credentials.

Require security tokens for all interfaces.

Enabling this option greatly improves cPanel/WHM's security against cross-site request forgery (XSRF) attacks. However, by enabling this option, you risk breaking integration with other systems, login applications, billing software, and third-party themes.

Software

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Interchange Version.

Select the version of the Interchange shopping cart software you wish to use. Interchange is an application server that is intended for e-commerce.

note Note: If you do not wish to use Interchange you should, in addition to clicking disable here, turn off the service in the Service Manager section of WHM.

!FormMail-clone cgi.

Enabling this option makes the FormMail-clone CGI script available to your users. This script allows a user to place a form on a website which visitors can use to email him.

ALERT! Warning: If this script is not used properly, it could pose security risks for your server. We recommend leaving this item unchecked.

The path to the Urchin installation.

In the text box, enter the path to the Urchin web statistics application. If you want WHM to automatically find the installed application, leave the box blank.

Stats Programs

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Awstats Reverse Dns Resolution.

This option allows the web statistics program AWStats to interpret the IP addresses from which visitors access your server as domain names. Disabling this option conserves server resources.

Analog Stats

Enabling this option allows users to access the web statistics program Analog Statistics. This may also be accomplished from the Statistics Software Configuration screen.

Awstats Stats

Select this option to let users to access the web statistics program AWStats. This may also be accomplished from the Statistics Software Configuration screen.

Webalizer Stats

This option allows users to access the web statistics program Webalizer. This may also be accomplished from the Statistics Software Configuration screen.

Stats and Logs

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Allow users to update Awstats from cPanel.

Click the checkbox to allow your cPanel users to update AWStats from the cPanel interface.

Number of hours between processing bandwidth usage.

In the text box, enter the interval, in hours, for processing your server’s bandwidth usage information. You may enter decimal values. The default value is 2; the maximum allowed is 24.

Number of hours between processing log files.

In the text box, enter the interval, in hours, for processing your server's log files. You may enter decimal values. The default value is 24.

Delete each domain's access logs after stats run.

Enable this option to delete the access logs for each domain after the statistics software runs. This will help conserve disk space.

Load average at which logs file processing should be suspended.

In the text box, enter the average load at which the logfile processing should be suspended. This number should be the average load per CPU, not the total load on all CPUs in your server.

Do not include password in the raw log download link.

Click the checkbox if you do not wish to include the user's password in the raw log download link on the cPanel FTP Accounts screen.

Do not reset /usr/local/apache/domlogs/ftpxferlog.

This option lets you disable deleting the contents of the file usr/local/apache/domlogs/ftpxferlog — the FTP transfer log — after the data has been parsed by domain.

Keep log files at the end of the month.

Select this option to keep log files at the end of each month, instead of deleting them.

note Note: Selecting this option is not recommended, as log files can quickly use up your server’s disk space.

Keep Stats Log (/usr/local/cpanel/logs/stats_log).

Click the checkbox to leave the stats log in place between cPanel restarts. Please note that if you have used WHM's cPanel Log Rotation Configuration option to configure the log to be archived monthly, it may interfere with this option by deleting the log in /usr/local/cpanel/logs/stats_log after archiving it.

Chmod value for raw apache log files.

Specify the appropriate chmod value to assign permissions to the raw Apache log file. The default value is 0640. For more information about the chmod command, enter the command man chmod from the command line interface.

When viewing bandwidth usage in WHM, always display in Megabytes first.

Click the checkbox if you prefer WHM to display bandwidth data in Megabytes by default.

Stats Log Level

In the text box, enter a number representing the level of detail you wish the stats log to include. The default value is 1. This field will accept values from 0 to 10, where 0 is the least amount of detail, while 10 is the greatest.

Status

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Load average that will cause the server status to appear red.

Enter the average CPU load that the server must reach in order to appear red on the Service Status pages in WHM and cPanel. Enter a whole number, or leave the box blank to use the default value of 2.

Support

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Send the credentials of the logged in user when requesting support.

Enabling this option will automatically send the credentials of the user currently logged in when a user requests support directly from cPanel.

System

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List of IPs/hostnames allowed to view the /server-info and /server-status pages.

In the text box, enter IP addresses and domains from which users will be allowed to view the Server Information and Service Status information cPanel. For information on how to format this data, see http://httpd.apache.org/docs/1.3/mod/mod_access.html#allow.

Allow cPanel users to install SSL Hosts if they have a dedicated IP.

This option allows cPanel users to download and install SSL certificates if they have a dedicated IP address.

Allow Perl updates from RPM based linux vendors.

Enable this option to allow your users to receive Perl updates from RPM-based Linux vendors.

Do not send anonymous usage data to cPanel.

cPanel, Inc. uses anonymized data about our customers' usage of our products to improve cPanel and WHM functionality. Click the checkbox to opt out of having your anonymized usage information sent to cPanel, Inc.

The port on which Apache listens for HTTP connections.

In the text box, enter the port on which you want Apache to listen for HTTP requests. The default is 0.0.0.0:80.

ALERT! Warning: Entering a port number will prevent Apache from listening on all other ports. This could prevent HTTP traffic from being routed correctly, making your site inaccessible to visitors.

The port on which Apache listens for HTTPS connections.

Specify the port on which you want Apache to listen for secure HTTP requests. The default is 0.0.0.0:443.

ALERT! Warning: Entering a port number will prevent Apache from listening on all other ports. This could prevent HTTP traffic from being routed correctly, making your site inaccessible to visitors.

Number of seconds dnsadmin will wait before restarting BIND.

Type the number of seconds you want the system to wait between BIND restarts. On busy servers, setting this number to 300 or 600 can lower memory consumption by preventing multiple subsequent restarts. On servers with few DNS changes, a setting of 0 is recommended.

Conserve memory at the expense of using more cpu/diskio.

Click the checkbox to conserve memory while possibly placing a greater load on your server's processor and increasing disk I/O.

Allow usernames to be determined from the account's domain name,

If this option is enabled, WHM automatically supplies the username when you enter an account password during cPanel login.

Compress interface pages using gzip.

Click the checkbox to compress the pages of the WHM and cPanel interfaces using the gzip compression format when you access WHM and cPanel via your domain name. Accessing WHM and cPanel this way counts toward your site’s total bandwidth, so selecting this option can help minimize this type of bandwidth usage.

Disable use of compiled dnsadmin.

This option lets you disable the use of the compiled DNSAdmin program. DNSAdmin is a program that helps simplify management of your DNS data. By clicking this checkbox, you are enabling the use of system Perl modules within custom DNSAdmin hooks, which is necessary for customizing your implementation of DNSAdmin. However, clicking this option also increases the time DNSAdmin takes to execute functions.

Allow Sharing Nameserver Ips.

Enable this option to allow your users to share nameserver IPs. Enabling this feature will decrease the number of IPs that need to be in your IP pool.

Disable Disk Quota display caching.

When this option is enabled, WHM will not cache disk quota and usage information. If this option is left unchecked, WHM will cache this data, resulting in the displayed disk usage information being up to 15 minutes out of date.

ALERT! Warning: Selecting this option could result in a large performance degradation on your server.

Disable login with root or reseller password.

Selecting this option will disable your ability to log into cPanel with the root or reseller password, and will disable the cPanel Switch Account drop-down menu for applicable themes. Normally, the root user or reseller can log into a user’s cPanel account using the account username and the root user’s or reseller’s password, maintaining root or reseller privileges.

Try to resolve each client's IP to a domain name.

Enable this if you want cPanel to attempt to resolve users’ IP addresses into domain names when they log into cPanel.

ALERT! Warning: Selecting this option can degrade your server’s performance.

Enable CPAN::SQLite for low memory perl module installs

Enabling this option may allow some servers to use the CPAN::SQLite module for some installations.

Only allow reseller to log in to users' cPanel interface with reseller password.

Enabling this option forces resllers to log into their users' cPanel interfaces using the reseller's password.

Display Errors in cPanel instead of logging them to /user/local/cpanel/logs/error_log

Click the checkbox if you want to display cPanel errors on the page being browsed in addition to recording them in the server’s error log at usr/local/cpanel/logs/error_log.

The maximum file size in MB.

In the text box, enter the maximum file size (in Megabytes) you wish to allow cPanel users to upload through the File Manager feature. To allow files of unlimited size to be uploaded, enter unlimited.

The minimum filesystem quota space in MB.

In the text box, enter the minimum amount of disk space (in Megabytes) required to remain after a file is uploaded through the cPanel File Manager. A user will not be able to upload a file if this minimum is not present in the filesystem, on top of the disk space required by the file itself. This prevents users from meeting disk space usage quotas through File Manager uploads. The default value is 5 MB.

The maximum number of directories deep to look for .htaccess files.

Enter the maximum number of directories deep to look for .htaccess files, relative to the user's home directory. You can enter a value between 0 and 100. The default value is 2. Values higher than 2 are discouraged because they can degrade your server's performance.

If your user's home directory was /home/user, and this value were set to 2, when searching for .htaccess files the following directories would be searched:

  • /home/user/
  • /home/user/directory1/
  • /home/user/directory1/directory2/

While the following directory would not be searched:

  • /home/user/directory1/directory2/directory3/

Do not warn about features that will be deprecated.

Select this option if you do not want to be warned about features which will become deprecated in future releases of WHM and cPanel.

ALERT! Warning: Checking this option will prevent you from learning about features which are to be taken out of later releases. Your reliance on these features could result in a non-functioning server.

Use jailshell as the default shell.

Click the checkbox if you wish to use jailshell as the default shell program for users logging into their accounts via the CLI (command line interface). Jailshell limits the commands users can execute, for security reasons.

The maximum memory a cPanel process can use.

In the text box, enter the maximum amount of memory (in Megabytes) that a cPanel process can use before it is terminated. This value must be greater than 128 MB. To disable this limit, enter 0.

Use native SSL support if possible.

Click the checkbox to use native support for TLS/SSL when available, rather than Stunnel. Stunnel is a program which provides encrypted data transfer between clients and servers which do not communicate natively via SSL.

Do not send language file changes to cPanel.

By default, users' changes to cPanel language files are transmitted to cPanel, Inc. during software updates. Click the checkbox to opt out of having your language file changes sent to cPanel, Inc.

Specify the timeout in seconds for connections between this server and other remote WHM servers.

In the text box, enter the maximum number of seconds to allow a connection between this server and other remote WHM servers to remain idle before timing out. These connections occur while transferring accounts, or in cluster setups. The minimum value is 35.

Maximum time in seconds that the system is permitted to spend fetching disk usage and quota information.

Enter the maximum number of seconds you wish for your system to spend getting and returning disk usage and quota information before it considers the data to be unavailable.

Allow cPanel users to reset their password via email.

Selecting this option will allow cPanel users to reset their passwords via email.

Enable cPanel Software RollBack.

Click the checkbox to allow cPanel to be rolled back to a previous version. Enabling this option turns on an archiving service which stores earlier versions of cPanel on your server for future rollback availability.

Do not start deprecated Melange 1.10 chat server.

This option disables the deprecated Melange 1.10 chat server software. Selecting this option is recommended.

Send a notification when a user's backup has errors.

Enabling this option will notify you if a user's backup encounters any errors.

Allow cpanel and admin binaries to be run from other applications.

Click the checkbox to allow the cPanel and admin binaries to be run from applications other than the cpsrvd daemon. This option is useful for advanced administrators familiar with Perl scripting, who wish to run cPanel from their own custom programs.

Disable whois lookups for the nameserver IP manager.

Here, you can disable WHM’s Nameserver IPs screen from performing WHOIS lookups.

The number of times a ChkServd TCP check must fail before notification is sent and the service is restarted.

Specify the number of times that a ChkServd TCP check must fail before the service is restarted. On heavily loaded systems, these types of checks fail occasionally and produce ereroneous indications that services are down, when in fact, they are not. A setting of 0 will disable notifications and restarts due to TCP checks. The default value of 3 (or higher) is recommended for most systems.

Use Safe Quota Setting.

This option will enable the Safe Quota Setting. Enabling this is recommended if you are experiencing quota corruption problems.

ALERT! Warning: In a software RAID environment, this option can degrade performance significantly.

cPAddons

cPAddons are pieces of software that you can install on your website through cPanel. cPAddons provide useful tools to your website. Common examples include bulletin boards, chat programs, and online shopping carts.

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The default administrative contact.

In the text box, enter the contact email address to which moderated requests regarding cPAddons should be sent. Resellers whose contact information has been entered via cPanel will be notified as well.

note Note: A moderated request is a user request to install or upgrade an addon, which you must approve.

Automatically keep all cPAddons Source Files up to date.

Select this option if you want cPanel to automatically update all cPAddons source files.

The maximum number of moderated requests at any given time.

In the text box, enter the maximum number of moderated requests that a user may have at once.

The maximum number of moderated requests per addon.

In the text box, enter the maximum number of moderated requests per addon that a user may have at once.

Alert cPAddons administrator of pending moderation requests.

Click the checkbox if you want the cPAddons administrator to be emailed whenever moderation requests are made.

Prevent installation of addon scripts not provided by cPanel.

This option lets you prevent the installation of any addon scripts not provided by cPanel.

Prevent installation of cPanel addon scripts that have been altered.

Click the checkbox to prevent the installation of any cPanel addon scripts that have been altered. This option helps to make your server more secure; however, you may wish to disable this option while testing custom addons.

Notify owners when their users have cPAddon installations that need updates.

Enable this option if you want your resellers to be automatically notified whenever one of their cPanel users has an addon that needs to be updated.

Notify cPAddons Adminstrator of cPAddon installations that need updates.

Select this if you want the cPAddons administrator (whose email has been entered above) to be automatically notified whenever one of their cPanel users has an addon that needs to be updated.

note Note: A moderated request is a request to install or upgrade an addon, which you must approve.

Notify users when they have cPAddon installations that need to be updated

Select 1 of the following options:

  • Allow users to choose — Allow the user to choose whether he or she would like to receive notices about outdated cPAddon installations.
  • always — Always notify the user when cPAddon installations require updates.
  • never — Never notify the user of outdated cPAddon installations.

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Topic revision: r10 - 13 Nov 2009 - 13:36:04 - Main.MelanieSeibert
 

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