Service Manager in WHM

Service Manager in WHM

erview

This interface lists your server’s services, and allows you to enable and monitor them.

Notes:

  • Select the appropriate Enabled checkbox to enable a service.
  • Select the appropriate Monitor checkbox to monitor a service via the cPanel Interface.
    • To monitor a service, you must first enable it.

tailwatchd (TailWatch Drivers)

TailWatch Driver
Description
ChkServd This driver monitors the services that you configure in the Service Manager interface.

  • The ChkServd driver attempts to restart a service when it detects that the service fails.
  • The ChkServd driver sends alerts about service failure, recovery, and timeouts to the contact information that you provide in WHM’s Basic WebHost Manager Setup interface (Home >> Server Configuration >> Basic WebHost Manager Setup).
Eximstats This driver tracks Exim mail statistics. The Eximstats driver maintains the email bandwidth logs, limits email usage, and populates data for the Mail Delivery Reports system.
JailManager This driver manages the jailshells that the EXPERIMENTAL: Jail Apache Virtual Hosts using mod_ruid2 and cPanel® jailshell option in WHM’s Tweak Settings interface (Home >> Server Configuration >> Tweak Settings) uses. The JailManager driver updates each user’s jailshell with the root filesystem.

Note:

If the EXPERIMENTAL: Jail Apache Virtual Hosts using mod_ruid2 and cPanel® jailshell option is disabled, the system disables the JailManager option.

MailHealth This driver monitors the mail log for problems with Dovecot mail services.
ModSecLog This driver parses the ModSecurity™ audit log and stores the information in the modsec database.
RecentAuthedMailIpTracker This driver tracks the IP addresses for recently-authenticated IMAP and POP3 sessions.
cPBandwd This driver generates the bandwidth logs for the IMAP and POP3 mail services.

Service daemons

Note:

The server’s installed services determine which daemons this interface displays.

Service
Description
Service
Description
PHP-FPM service for Apache In cPanel & WHM version 60, we added the ability to monitor Apache’s PHP-FPM implementation. This daemon improves the performance of EasyApache 4’s PHP-based internal applications.

Important:

This option is only available on systems that use EasyApache4.

PHP-FPM service for cPanel Daemons In cPanel & WHM version 54, we added the PHP-FPM implementation to the cpsrvd daemon’s configuration. This will improve performance of PHP-based internal applications that ship with cPanel & WHM, such as:

  • phpMyAdmin
  • phpPgAdmin
  • Roundcube
  • Horde
  • SquirrelMail
  • Any third-party PHP application that the user installs.

This service logs errors and unusually slow script performance in the following locations:

  • /usr/local/cpanel/logs/php-fpm/error.log — The main error log file for the PHP-FPM implementation.
  • /var/cpanel/php-fpm/$user/logs/slow.log — The log file for scripts that run unusually slow for a user, where $user represents the cPanel account name.
  • /var/cpanel/php-fpm/$user/logs/error.log — The error log file for a user, where $user represents the cPanel account name.

Note:

This service will accelerate a maximum of 10 concurrent processes per user.

cPanel DAV Daemon This daemon enables a set of HTTP extensions that allow users to manage their websites remotely. Leave this daemon active if you plan to host other people’s websites on your web server.
cPanel Greylisting Daemon This daemon manages Greylisting, a service that protects your server against spam from sources that your server does not recognize.
cPHulk Daemon This daemon manages cPHulk Brute Force Protection.
Cron Daemon The cron scheduling daemon.
cPanel DNS Admin Cache dnsadmin runs as a standalone daemon. This improves speed, but increases it memory usage. Deselect this option if you wish to use multiple dnsadmin processes for zone-related actions.
Exim Mail Server The SMTP mail server daemon is the part of your mail server that sends and receives mail. We recommend that you monitor and enable this feature for most servers.

Warning:

If you disable this service, the following options do not appear in the Mail section of WHM’s Tweak Settings interface (Home >> Server Configuration >> Tweak Settings):

  • Discard FormMail-clone message with bcc:
  • Email delivery retry time
  • Track email origin via X-Source email headers
  • Max hourly emails per domain
  • The percentage of email messages (above the domain’s hourly maximum) to queue and retry for delivery.
  • Maximum percentage of failed or deferred messages a domain may send per hour
  • Number of failed or deferred messages a domain may send before protections can be triggered
  • Add X-PopBeforeSMTP header for mail sent via POP-before-SMTP
  • Enable BoxTrapper spam trap
  • Enable Email Archiving support
  • Enable Apache SpamAssassin™ spam filter
Exim Mail Server (on another port) By default, Exim listens to the following ports:

  • 25
  • 465
  • 587

This option allows you to configure Exim to listen to an additional port.

Note:

In the text box, enter the additional port number on which you wish to allow Exim to run.

FTP Server The FTP server daemon runs your FTP server. Enable this feature if you plan to host other people’s websites on your web server.

Important:

We strongly recommend that you monitor this feature.

Apache Web Server The Apache web server daemon handles HTTP requests from visitors. Enable this feature to host websites with your web server.
IMAP Server The IMAP daemon for Dovecot handles how your users download their mail.

Important:

We strongly recommend that you monitor this daemon.

IP Aliases This feature allows you to add more than one IP address to your network adapter. Use this configuration to run multiple connections on a single network, where each connection serves an additional purpose.
LMTP Server The Local Mail Transport Protocol (LMTP) server allows Exim to connect to the Dovecot mail server.
Mailman The Mailman mailing list manager allows your users to create a single email address to send mail to multiple email addresses.
MySQL Server The MySQL® database server handles database queries. If you plan to host any content management systems or applications that require a database, enable this feature or thepostgresql server.

Important:

We recommend that you monitor this daemon. The system does not monitor this daemon by default.

DNS Server The Berkeley Internet Name Domain (BIND), NSD, PowerDNS, or MyDNS daemon runs the nameservers.

Note:

You should only enable this daemon if you wish to use your own nameservers.

Name Service Cache Daemon This daemon manages a cache for name service requests.

Important:

We strongly recommend that you only enable this service on servers with at least 1,000 MB of available memory.

Passive OS Fingerprinting Daemon The Passive OS Fingerprinting daemon (p0f) reports the visitor’s operating system and other information for email notifications. This information helps you quickly identify visitors that trigger events that cause alerts.
POP3 Server The POP3 daemon handles how your users will download their mail.

Warning:

We strongly recommend that you monitor this daemon. The system does not monitor this daemon by default.

PostgreSQL Server The PostgreSQL® database server handles database queries. If you plan to host any content management systems or applications that require a database, enable this feature or themysqld server.
Apache SpamAssassin™ The Apache SpamAssassin™ daemon attempts to filter spam messages. If you disable this daemon, make sure that you also disable it in WHM’s Tweak Settings interface (Home >> Server Configuration >> Tweak Settings).
SSH Daemon The secure shell (SSH) daemon allows users to connect to your server in a terminal session via SSH.
rsyslog System Logger Daemon The system log daemon monitors your web server and logs the system activity.

Important:

We strongly recommend that you enable this daemon.

Was this article helpful?

Related Articles

Leave A Comment?

You must be logged in to post a comment.