firewalld

Firewall Daemon (firewalld) protects your system from unwanted remote access. This security packages needs to be updated daily. The daemon can be started and stopped from the commandline. Syntax: firewalld [status/start/stop] Example: firewalld status
Installation: apt-get install firewalld


logd

Log Daemon (logd) creates log files for various system activities like SSH and Firewall. The daemon can be started and stopped from the commandline. Syntax: logd [status/start/stop] Example: logd status
Installation: apt-get install logd


httpd

HTTP Daemon (httpd) is a webserver running on your system. This allows visitors to download files located in the /var/www folder. The daemon can be started and stopped from the command line. Syntax: httpd [status/start/stop] Example: httpd status
Installation: apt-get install httpd


maild

Mail Daemon (maild) facilitates the sending and receiving of email messages on your system. The daemon can be started and stopped from the commandline. Syntax: maild [status/start/stop] Example: maild status
Installation: apt-get install maild