|Antirelayd|| This TailWatch driver enables support for IMAP/POP before SMTP authentication. This configuration allows users who authenticated against the POP3 or IMAP service in the last 30 minutes to send emails via SMTP without the need to authenticate again. We recommend that system administrators disable this option in favor of SMTP authentication because most modern mail clients now support SMTP authentication.
Additional information about this TailWatch driver is available.
|ChkServd||This TailWatch driver monitors the services that are configured in the Service Manager feature. ChkServd attempts to restart a service when it detects the service has failed. Chkservd provides alerts about service failure, recovery, and timeouts to the contact information provided in WHM's Basic cPanel & WHM Setup section.|
|Eximstats||This TailWatch driver is the Exim mail statistics tracker. Eximstats maintains the email bandwidth logs, limits email usage, and populates data for the Mail Delivery Reports system.|
|JailManager|| This TailWatch driver manages the jails used for the EXPERIMENTAL: Jail Apache Virtual Hosts using mod_ruid2 and cPanel® jailshell option.
This TailWatch driver keeps each user's jail updated with the root filesystem.
Note: The ability to enable or disable JailManager corresponds directly to the status of the EXPERIMENTAL: Jail Apache Virtual Hosts using mod_ruid2 and cPanel® jailshell option.
|cPBandwd||This TailWatch driver generates the bandwidth logs for IMAP and POP3 mail services.|
|cpdavd||The cPanel DAV daemon. This enables a set of HTTP extensions that allow users to manage their websites remotely. You should leave this daemon active if you intend to host other people’s websites on your web server.|
|dnsadmin|| In older versions of cPanel & WHM, a new
|entropychat||HTML-based chat server. Running this daemon can pose security risks and is discouraged.|
|exim||SMTP mail server. This is the part of your mail server that is responsible for sending and receiving mail. This feature should be both monitored and enabled for most servers.|
|exim on another port|| You can allow users to run Exim on an additional port. (Exim will also run on the default port, 25.)
Remember: In the text box, specify the additional port number on which you would like to allow Exim to run.
|ftpd||FTP server daemon. This runs your FTP server. If you intend to host other people’s accounts on your web server you should leave this feature enabled. We strongly recommend monitoring this feature.|
|httpd||Apache web server daemon. This handles HTTP requests from visitors. If you intend to host any websites with your web server, you should leave this enabled.|
|imap||The IMAP Courier/Dovecot daemon. This handles how your users will download their mail. We strongly recommend that you monitor this daemon. For more information, read our comparison of IMAP vs. POP.|
|ipaliases||Activating this feature allows you to add more than one IP address to your network adapter. Using this configuration allows you to run multiple connections on a single network, with each connection serving an additional purpose.|
|melange||Java chat server. Running this daemon can pose security risks and is discouraged.|
|mysql||MySQL database server. This handles database queries. If you plan to host any content management systems or applications that require a database, you will need to leave this feature enabled, or enable the postgresql server. You should monitor this daemon.|
|named||Berkeley name server (BIND) daemon. This process runs the nameservers. This should only be enabled if you wish to use your own nameservers. You can learn more by reading our comparison of BIND vs. NSD.|
|NSD||Open-source name server daemon. This should only be enabled if you wish to use your own nameservers. You can learn more by reading our comparison of BIND vs. NSD.|
|pop||POP3 courier/dovecot daemon. This handles how your users will download their mail. We strongly recommend that you monitor this daemon.|
|spamd||SpamAssassin server. This daemon attempts to filter spam messages. If you disable this daemon, make sure you disable it from the Tweak Settings screen as well.|
|sshd||The secure shell (SSH) daemon that allows users to connect to your server in a terminal session via SSH.|
|syslogd||System log daemon. This handles monitoring and logging system information about your web server. We strongly recommend that you leave this daemon enabled.|
|tailwatchd||Log monitoring service. This daemon functions as a framework for creating user-interpretable logs. We strongly recommend that you leave this daemon enabled.|