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(WHM >> Home >> Service Configuration >> Service Manager)

Overview

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

Important:

The server profile that you select in WHM's Server Profile interface (WHM >> Home >> Server Configuration >> Server Profile) affects which services display in this interface. For more information, read our How to Use Server Profiles documentation.

Notes:

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

tailwatchd (TailWatch Drivers)

TailWatch DriverDescription
APNSPush

This driver notifies iOS® devices when new mail arrives.

ApacheClientsOptimizer

This driver is not currently implemented.

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 (WHM >> 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 (WHM >> 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.

MailAuthOptimizer

This driver is not currently implemented.

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 and the server's profile determine which daemons this interface displays.

ServiceDaemonDescription
PHP-FPM service for Apacheapache_php_fpm

Error: [com.ctc.wstx.exc.WstxLazyException] Unexpected close tag

; expected . at [row,col {unknown-source}]: [1,558]

Note:

The Database Node, DNS Node, and Mail Node server profiles disable this service.

PHP-FPM service for cPanel Daemonscpanel_php_fpm

This daemon improves the performance of PHP-based internal applications that ship with cPanel & WHM, such as:

  • phpMyAdmin
  • phpPgAdmin
  • Webmail applications
  • Any third-party PHP application that the user installs.

Note:

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

ClamAV Daemonclamd

This daemon scans your server for malicious programs.

Note:

To install or uninstall ClamAV, use WHM's Manage Plugins interface (WHM >> Home >> cPanel >> Manage Plugins).

cpanel-dovecot-solrcpanel-dovecot-solr

This daemon enables IMAP Full-Text Search (FTS) Indexing (powered by Apache Solr™), which provides fast search capabilities for IMAP mailboxes.

For more information about this service, read our The install_dovecot_fts Script documentation.

Notes:

  • To install or uninstall IMAP Full-Text Search (Powered by Apache Solr), use WHM's Manage Plugins interface (WHM >> Home >> cPanel >> Manage Plugins).
  • The Database Node and DNS Node server profiles disable this service.
cPanel DAV Daemon cpdavd

This daemon enables a set of HTTP extensions that allow users to manage their websites remotely.

Important:

If you plan to host other people’s websites on your web server, do not disable this daemon.

Note:

The Database Node and DNS Node server profiles disable this service.

cPanel Greylisting Daemon cpgreylistd

This daemon manages Greylisting, a service that protects your server against spam from sources that your server does not recognize. For more information, read our Greylisting documentation.

Note:

The Database Node and DNS Node server profiles disable this service.

cPHulk Daemon cphulkd

This daemon manages cPHulk Brute Force Protection, a service that provides protection for your server against brute force attacks.

Cron Daemoncrond

The cron scheduling daemon. For more information, read our Cron Jobs documentation.

cPanel DNS Admin Cache dnsadmin

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 exim

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 (WHM >> 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) exim-altport

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 ftpd

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.

Note:

The Database Node, DNS Node, and Mail Node server profiles disable this service.

Apache Web Server httpd

The web server daemon processes HTTP requests from visitors. Enable this feature to host websites with your web server.

Note:

The Database Node, DNS Node, and Mail Node server profiles disable this service.

IMAP Server imap

The IMAP daemon for Dovecot® processes how your users download their mail.

For more information, read our IMAP vs. POP3 documentation.

Important:

We strongly recommend that you monitor this daemon.

Note:

The Database Node and DNS Node server profiles disable this service.

IP Aliases ipaliases

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 Serverlmtp

The Local Mail Transport Protocol (LMTP) server allows Exim to connect to the Dovecot mail server.

Mailman mailman

The Mailman mailing list manager allows your users to create a single email address to send mail to multiple email addresses. For more information, read our Mailing Lists documentation.

Notes:

  • The Database Node and DNS Node server profiles disable this service.
  • The system does not start the Mailman service until the server hosts at least one mailing list.
MySQL Server mysql

The MySQL® database server processes database queries. If you plan to host any content management systems or applications that require a database, enable this feature or the postgresql server.

Important:

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

Note:

The Mail Node server profile disables this service.

DNS Server named

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

Notes:

  • You should only enable this daemon if you wish to use your own nameservers. For more information, read our Nameserver Selection documentation.
  • The Database Node server profile disables this service.
Name Service Cache Daemon nscd

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 p0f

The Passive OS Fingerprinting daemon (p0f) reports the visitor's operating system and other information for email notifications that the system administrator requests in the Contact Manager interface. This information helps a system administrator quickly identify visitors that trigger events that cause alerts. The spam prevention and cPHulk systems use this information to identify potential spammers and brute force attacks.

For example, if a user logs in to a server from multiple locations and uses multiple operating systems, this may indicate that someone has compromised the user's account.

For more information about this daemon, read the Passive OS Fingerprinting documentation at github.

Note:

If you disable this daemon, the notification footers will no longer contain the visitor information.

POP3 Server pop

The POP3 daemon processes 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.

Note:

The Database Node and DNS Node server profiles disable this service.

PostgreSQL Server postgresql

The PostgreSQL® database server processes database queries. If you plan to host any content management systems or applications that require a database, enable this feature or the mysqld server.

Note:

The DNS Node and Mail Node server profiles disable this service.

Apache SpamAssassin™ spamd

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 (WHM >> Home >> Server Configuration >>Tweak Settings).

Note:

The Database Node and DNS Node server profile disables this service.

SSH Daemon sshd

The secure shell (SSH) daemon allows users to connect to your server in a terminal session via SSH.

rsyslog System Logger Daemon rsyslogd

The system log daemon monitors your web server and logs the system activity.

Important:

We strongly recommend that you enable this daemon.

Additional documentation