ujpadmin@commet:~ $ apt-cache search httpd|grep apache
apache2 - Apache HTTP Server
apache2-mpm-event - transitional event MPM package for apache2
apache2-mpm-itk - transitional itk MPM package for apache2
apache2-mpm-prefork - transitional prefork MPM package for apache2
apache2-mpm-worker - transitional worker MPM package for apache2
libapache2-mod-authn-sasl - SASL authentication backend provider for Apache
libapache2-mod-dnssd - Zeroconf support for Apache 2 via avahi
libapache2-mod-lookup-identity - Apache module to retrieve additional information about the authenticated user
libapache2-mod-mime-xattr - Apache2 module to get MIME info from filesystem extended attributes
libapache2-mod-netcgi-apache - OCaml application-level Internet libraries - netcgi2 Apache2 connector
libapache2-mod-proxy-msrpc - Apache module for Outlook Anywhere support in reverse proxy setups
libapache2-mod-rpaf - module for Apache2 which takes the last IP from the 'X-Forwarded-For' header
libapache2-mod-ruid2 - suexec module for Apache 2
libapache2-mod-svn - Apache Subversion server modules for Apache httpd
libapache2-mod-watchcat - Process monitoring Apache module
libapache2-mod-wsgi - Python WSGI adapter module for Apache
libapache2-mod-wsgi-py3 - Python 3 WSGI adapter module for Apache
libapache2-svn - Apache Subversion server modules for Apache httpd (dummy package)
ujpadmin@commet:~ $