grep -Eri 'listen|servername|serveralias|sslcert|rewrite|known|challenge' /etc/apache2/
/etc/apache2/magic:0    string  MThd                    audio/unknown
/etc/apache2/magic:0    string  CTMF                    audio/unknown
/etc/apache2/magic:0    string  SBI                     audio/unknown
/etc/apache2/magic:0    string  Creative\ Voice\ File   audio/unknown
/etc/apache2/magic:#  should be string instead of unknown-endian long...]
/etc/apache2/magic:0    string          GIF94z          image/unknown
/etc/apache2/magic:0    string          FGF95a          image/unknown
/etc/apache2/magic:0    string          PBF             image/unknown
/etc/apache2/magic:0    byte            1                       video/unknown
/etc/apache2/magic:0    byte            2                       video/unknown
/etc/apache2/ports.conf:Listen 80
/etc/apache2/ports.conf:        Listen 443
/etc/apache2/ports.conf:        Listen 443
/etc/apache2/mods-available/deflate.conf:               # these are known to be safe with MSIE 6
/etc/apache2/mods-available/status.conf:        # with the URL of http://servername/server-status
/etc/apache2/mods-available/ssl.conf:   #   (The mechanism dbm has known memory leaks and should not be used).
/etc/apache2/mods-available/rewrite.load:LoadModule rewrite_module /usr/lib/apache2/modules/mod_rewrite.so
/etc/apache2/mods-available/setenvif.conf:      # handle known problems with browser implementations.
/etc/apache2/mods-available/autoindex.conf:     DefaultIcon /icons/unknown.gif
/etc/apache2/mods-available/info.conf:  #  http://servername/server-info (requires that mod_info.c be loaded).
/etc/apache2/apache2.conf:#   supposed to determine listening ports for incoming connections which can be
/etc/apache2/apache2.conf:# Include list of ports to listen on
/etc/apache2/apache2.conf:            ServerName www.htm-audio.co.uk
/etc/apache2/apache2.conf:            ServerAlias htm-audio.co.uk
/etc/apache2/apache2.conf:      ServerName www.exxoshost.co.uk
/etc/apache2/apache2.conf:      ServerAlias exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.prices.chrisswinson.co.uk
/etc/apache2/apache2.conf:            ServerAlias prices.chrisswinson.co.uk
/etc/apache2/apache2.conf:            ServerName www.payments.chrisswinson.co.uk
/etc/apache2/apache2.conf:            ServerAlias payments.chrisswinson.co.uk
/etc/apache2/apache2.conf:            ServerName www.future-technologies.co.uk
/etc/apache2/apache2.conf:            ServerAlias future-technologies.co.uk
/etc/apache2/apache2.conf:            ServerName www.chrisswinson.co.uk
/etc/apache2/apache2.conf:            ServerAlias chrisswinson.co.uk
/etc/apache2/apache2.conf:            ServerName www.dev-docs.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias dev-docs.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.atari4ever.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias atari4ever.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.toshyp.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias toshyp.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.server2.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias server2.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.ataristupgrades.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias ataristupgrades.exxoshost.co.uk
/etc/apache2/apache2.conf:#            ServerName www.ataristmouse.exxoshost.co.uk
/etc/apache2/apache2.conf:#            ServerAlias ataristmouse.exxoshost.co.uk
/etc/apache2/apache2.conf:#            ServerName www.ataristpsu.exxoshost.co.uk
/etc/apache2/apache2.conf:#            ServerAlias ataristpsu.exxoshost.co.uk
/etc/apache2/apache2.conf:#            ServerName www.ataristtos.exxoshost.co.uk
/etc/apache2/apache2.conf:#            ServerAlias ataristtos.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.powerphenix.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias powerphenix.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.ataristeven.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias ataristeven.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.atarimusic.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias atarimusic.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.UVK2000.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias UVK2000.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.tamw.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias tamw.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.order.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias order.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerName www.PD.exxoshost.co.uk
/etc/apache2/apache2.conf:            ServerAlias PD.exxoshost.co.uk
/etc/apache2/apache2.conf:#  ServerName www.exxoshost.co.uk
/etc/apache2/apache2.conf:#  ServerAlias exxoshost.co.uk
/etc/apache2/certbot-auto:        error "Error: unknown root authorization mechanism '$LE_AUTO_SUDO'."
/etc/apache2/certbot-auto:  # virtual env is known to apt and is installable
/etc/apache2/certbot-auto:# if it is unknown how OS dependencies were installed on this system.
/etc/apache2/sites-available/000-default.conf:  # The ServerName directive sets the request scheme, hostname and port that
/etc/apache2/sites-available/000-default.conf:  # redirection URLs. In the context of virtual hosts, the ServerName
/etc/apache2/sites-available/000-default.conf:  #ServerName www.example.com
/etc/apache2/sites-available/default-ssl.conf:ServerName exxoshost.co.uk
/etc/apache2/sites-available/default-ssl.conf:ServerAlias www.exxoshost.co.uk
/etc/apache2/sites-available/default-ssl.conf:          #   SSLCertificateFile directive is needed.
/etc/apache2/sites-available/default-ssl.conf:  #       SSLCertificateFile      /etc/ssl/certs/ssl-cert-snakeoil.pem
/etc/apache2/sites-available/default-ssl.conf:  #       SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
/etc/apache2/sites-available/default-ssl.conf:        SSLCertificateFile /etc/letsencrypt/live/exxoshost.co.uk/cert.pem
/etc/apache2/sites-available/default-ssl.conf:        SSLCertificateKeyFile /etc/letsencrypt/live/exxoshost.co.uk/privkey.pem
/etc/apache2/sites-available/default-ssl.conf:          #   Point SSLCertificateChainFile at a file containing the
/etc/apache2/sites-available/default-ssl.conf:          #   the referenced file can be the same as SSLCertificateFile
/etc/apache2/sites-available/default-ssl.conf:          #SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt
/etc/apache2/sites-available/default-ssl.conf:SSLCertificateChainFile /etc/letsencrypt/live/exxoshost.co.uk/chain.pem