Namestite spletni strežnik Caddy iz vira za skladnost z licenco na Ubuntu 16.04 LTS

Septembra 2017 je bila Caddy EULA spremenjena in vsi primerki Caddyja, ki jih vodijo podjetja in osebna spletna mesta, ki opravljajo trgovino, zahtevajo komercialno licenco za preneseno binarno datoteko Caddy. Ta vadnica pomaga strankam, ki želijo namestiti spletni strežnik Caddy v skladu z novo EULA. V času pisanja, pri prevajanju Caddyja iz vira in ustvarjanju lastne binarne datoteke, plačana licenca ni potrebna, ne glede na to, ali ste podjetje ali opravljate trgovino na svojem osebnem spletnem mestu. Preden sledite korakom v tej vadnici, je pomembno, da pregledate najnovejšo EULA glede skladnosti.

Lastnosti:

• Kratka, lahko razumljiva konfiguracija
• Zgrajeno z Go
• Razširljivo beleženje
• Izjemno hitra statična dostava datotek
• Podpora za dinamično spletno mesto in proxy
• Notranji pregledovalnik konfiguracije
• Statično binarno
• Privzeto uporablja priporočene sodobne šifre Mozille
• Zaznavanje MITM (človek v sredini).
• Podpora za SNI (indikator imena strežnika).
• Samodejno ustvarjanje/priklic/obnova potrdil Let's Encrypt
• Podpora OCSP
• Podpora za virtualne gostitelje
• Podpora za upodabljanje Markdown2html
• Vgrajena podpora HTTP/2, QUIC in Websocket
• Uravnavanje obremenitve, povratni proxy in podpora za zaključevanje SSL

Predpogoji

• Primerek Ubuntu 16.04 LTS
• A sudo uporabnik
• Različica Golang, višja od 1,8+

Posodobitev sistema

Prijavite se kot navaden uporabnik, ki ima dovoljenje za uporabo ukaza sudo. Posodobite sistem na naslednji način.

sudo apt update && sudo apt upgrade -y && sudo apt autoremove -y

Namestite Caddy iz vira

Prenesite najnovejšo različico izvorne kode spletnega strežnika Caddy. To ne vsebuje vtičnikov tretjih oseb za Caddy.

go get -u github.com/mholt/caddy/caddy && go get -u github.com/caddyserver/builds && cd go/src/github.com/mholt/caddy/caddy

Izbirno: če potrebujete tls.dns.vultrvtičnik dnsproviders drugega izdelovalca, kopirajte naslednje. S tem boste prenesli izvorno kodo Caddyja in tls.dns.vultrvtičnik dnsproviders drugega proizvajalca, če ga želite uporabiti.

go get -u github.com/mholt/caddy/caddy && go get -u github.com/caddyserver/builds && go get -u github.com/caddyserver/dnsproviders/vultr && cd go/src/github.com/mholt/caddy/caddy && sed -i '38i\\t_ "github.com/caddyserver/dnsproviders/vultr"' caddymain/run.go

Prevedi caddybinarno datoteko. Sestavljanje bo trajalo manj kot minuto.

go run build.go

Preverite različico in seznam vtičnikov caddybinarne datoteke.

./caddy -version && ./caddy -plugins

Kopirajte Caddy binarno, ki se nahaja v ~/go/src/github.com/mholt/caddy/caddy/na /usr/binimenik in spremenite imenik nazaj do korena vašega uporabniškega imenik.

sudo cp caddy /usr/bin/ && cd

Ustvarite caddy.servicedatoteko systemd v /etc/systemd/system/imeniku z echoukazom.

sudo su -c "echo -e '[Unit]\nAfter=network-online.target\nDescription=Caddy HTTP/2 web server\nDocumentation=https://caddyserver.com/docs\nWants=network.target\n\n[Service]\nAmbientCapabilities=CAP_NET_BIND_SERVICE\nCapabilityBoundingSet=CAP_NET_BIND_SERVICE\nEnvironment=CADDYPATH=/etc/ssl/caddy\n## Environment=VULTR_API_KEY=XXXXXXXX ##Uncomment and add your Vultr API (API tab on the Settings page) if using the Vultr DNS Manager to handle DNS for your VPS instance.\nExecReload=/bin/kill -USR1 $MAINPID\nExecStart=/usr/bin/caddy -agree=true -conf=/etc/caddy/caddy.conf -quic -root=/var/tmp\nGroup=www-data\nKillMode=mixed\nKillSignal=SIGQUIT\nLimitNOFILE=1048576\nLimitNPROC=512\nNoNewPrivileges=true\nPrivateDevices=true\nPrivateTmp=true\nProtectHome=true\nProtectSystem=full\nReadWriteDirectories=/etc/ssl/caddy\nRestart=on-abnormal\nTimeoutStopSec=5s\nUser=www-data\n\n[Install]\nWantedBy=multi-user.target' > /etc/systemd/system/caddy.service"

Ustvarite /etc/caddy/imenik, ki bo vseboval konfiguracijsko datoteko spletnega strežnika Caddy; /etc/ssl/caddy/imenik, ki bo vsebovala Encrypt certifikate v Oglejmo; /usr/share/caddy/imenik, ki bo vseboval vzorec html datoteko; in /var/log/caddy/imenik, ki bo vseboval dnevnike spletnega strežnika Caddy, z mkdirukazom. www-dataZ chownukazom za imenike /etc/ssl/caddy/in spremenite lastništvo skupine v skupino /var/log/caddy/. Z chmodukazom za zaščito /etc/ssl/caddy/imenika odstranite svetovna izvršljiva, berljiva in zapisljiva dovoljenja .

sudo mkdir -p {/etc/{caddy/conf.d,ssl/caddy},/usr/share/caddy,/var/log/caddy} && sudo chown www-data /etc/ssl/caddy/ /var/log/caddy/ && sudo chmod 750 /etc/ssl/caddy/

Omogočite spletni strežnik Caddy.

sudo systemctl daemon-reload && sudo systemctl enable caddy

Konfigurirajte spletni strežnik Caddy

Vsak spodnji razdelek pojasnjuje, kako konfigurirati Caddy za različne scenarije. Te lahko uporabite za referenco in preskočite na razdelek, ki ustreza vašim zahtevam.

Nastavite Caddy za prikaz statičnih strani HTML (ne-SSL)

Ustvarite osnovno datoteko konfiguracijske predloge na korenski ravni, imenovano caddy.confv /etc/caddy/imeniku, ki z ukazom uporablja uvoz za dejansko konfiguracijsko datoteko vhost za vzorčno statično spletno mesto HTML, imenovano example.com.confv /etc/caddy/conf.d/imeniku echo.

sudo su -c 'echo -e "import conf.d/*.conf" > /etc/caddy/caddy.conf' && sudo su -c 'echo -e "example.com:80 {\n\tredir http://www.example.com{url}\n}\nwww.example.com:80 {\n\terrors /var/log/caddy/example.com-error.log\n\timport header.protection\n\tlog /var/log/caddy/example.com-access.log\n\troot /var/www/html/\n}" > /etc/caddy/conf.d/example.com.conf' && sudo su -c 'echo -e "header / {\n\tX-XSS-Protection \"1; mode=block\"\n\tX-Content-Type-Options \"nosniff\"\n\tX-Frame-Options \"SAMEORIGIN\"\n}" > /etc/caddy/conf.d/header.protection'

Ustvarite /var/www/htmlimenik in index.htmlz echoukazom ustvarite preprosto notranjost .

sudo mkdir -p /var/www/html && sudo su -c 'echo -e "<!DOCTYPE html>"\\n"<head>"\\n\\t"<meta charset="utf-8">"\\n\\t"<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">"\\n\\t"<title>Static HTML Page"\\n\\t"</title>"\\n\\t"<meta name="description" content="">"\\n\\t"<meta name="viewport" content="width=device-width, initial-scale=1">"\\n"</head>"\\n"<body>"\\n\\t"<p>Caddy is working."\\n\\t"</p>"\\n"</body>"\\n"</html>" > /var/www/html/index.html'

Zaženite spletni strežnik Caddy.

sudo systemctl start caddy

V spletnem brskalniku odprite FQDN ( example.com) svojega primerka VPS.

Nastavite Caddy za prikaz statičnih strani HTML (SSL)

Ustvarite osnovno datoteko konfiguracijske predloge na korenski ravni, imenovano caddy.confv /etc/caddy/imeniku, ki uporablja uvoz za dejansko konfiguracijsko datoteko vhost za vzorčno statično spletno mesto HTML, imenovano example.com.confv /etc/caddy/conf.d/imeniku, z echoukazom.

sudo su -c 'echo -e "import conf.d/*.conf" > /etc/caddy/caddy.conf' && sudo su -c 'echo -e "example.com {\n\tredir https://www.example.com{url}\n}\nwww.example.com {\n\terrors /var/log/caddy/example.com-error.log\n\timport header.protection\n\tlog /var/log/caddy/example.com-access.log\n\troot /var/www/html/\n\ttls [email protected]\n}" > /etc/caddy/conf.d/example.com.conf' && sudo su -c 'echo -e "header / {\n\tX-XSS-Protection \"1; mode=block\"\n\tX-Content-Type-Options \"nosniff\"\n\tX-Frame-Options \"SAMEORIGIN\"\n}" > /etc/caddy/conf.d/header.protection'

Ustvarite /var/www/htmlimenik in index.htmlz echoukazom ustvarite preprosto notranjost .

sudo mkdir -p /var/www/html && sudo su -c 'echo -e "<!DOCTYPE html>"\\n"<head>"\\n\\t"<meta charset="utf-8">"\\n\\t"<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">"\\n\\t"<title>Static HTML Page"\\n\\t"</title>"\\n\\t"<meta name="description" content="">"\\n\\t"<meta name="viewport" content="width=device-width, initial-scale=1">"\\n"</head>"\\n"<body>"\\n\\t"<p>Caddy is working."\\n\\t"</p>"\\n"</body>"\\n"</html>" > /var/www/html/index.html'

Zaženite spletni strežnik Caddy.

sudo systemctl start caddy

V spletnem brskalniku odprite FQDN ( example.com) svojega primerka VPS.

Nastavite Caddy za obdelavo strani PHP s proxy strežnikom PHP-FPM (ne-SSL)

Ustvarite osnovno datoteko konfiguracijske predloge na korenski ravni, imenovano caddy.confv /etc/caddy/imeniku, ki uporablja uvoz za dejansko konfiguracijsko datoteko vhost za vzorčno stran PHPInfo, imenovano example.com.confv /etc/caddy/conf.d/imeniku, z echoukazom.

sudo su -c 'echo -e "import conf.d/*.conf" > /etc/caddy/caddy.conf' && sudo su -c 'echo -e "example.com:80 {\n\tredir http://www.example.com{url}\n}\nwww.example.com:80 {\n\terrors /var/log/caddy/example.com-error.log\n\tfastcgi / /var/run/php/php7.0-fpm.sock php\n\timport header.protection\n\tlog /var/log/caddy/example.com-access.log\n\troot /var/www/html/\n}" > /etc/caddy/conf.d/example.com.conf' && sudo su -c 'echo -e "header / {\n\tX-XSS-Protection \"1; mode=block\"\n\tX-Content-Type-Options \"nosniff\"\n\tX-Frame-Options \"SAMEORIGIN\"\n}" > /etc/caddy/conf.d/header.protection'

Ustvarite preprost index.phpv /var/www/htmlimeniku z echoukazom.

sudo su -c 'echo -e "<?php\nphpinfo();\n?>" > /var/www/html/index.php'

Namestite strežnik PHP-FPM za obdelavo datotek PHP.

sudo apt install php-fpm -y

Zaženite spletni strežnik Caddy.

sudo systemctl start caddy

V spletnem brskalniku odprite FQDN ( example.com) svojega primerka VPS.

Nastavite Caddy za obdelavo strani PHP s proxy strežnikom PHP-FPM (SSL)

Ustvarite osnovno datoteko konfiguracijske predloge na korenski ravni, imenovano caddy.confv /etc/caddy/imeniku, ki uporablja uvoz za dejansko konfiguracijsko datoteko vhost za vzorčno dinamično preskusno spletno mesto, imenovano example.com.confv /etc/caddy/conf.d/imeniku, z echoukazom.

sudo su -c 'echo -e "import conf.d/*.conf" > /etc/caddy/caddy.conf' && sudo su -c 'echo -e "example.com {\n\tredir https://www.example.com{url}\n}\nwww.example.com {\n\terrors /var/log/caddy/example.com-error.log\n\tfastcgi / /var/run/php/php7.0-fpm.sock php\n\timport header.protection\n\tlog /var/log/caddy/example.com-access.log\n\troot /var/www/html/\n\ttls [email protected]\n}" > /etc/caddy/conf.d/example.com.conf' && sudo su -c 'echo -e "header / {\n\tX-XSS-Protection \"1; mode=block\"\n\tX-Content-Type-Options \"nosniff\"\n\tX-Frame-Options \"SAMEORIGIN\"\n}" > /etc/caddy/conf.d/header.protection'

Ustvarite preprost index.phpv /var/www/htmlimeniku z echoukazom.

sudo su -c 'echo -e "<?php\nphpinfo();\n?>" > /var/www/html/index.php'

Namestite strežnik PHP-FPM za obdelavo datotek PHP.

sudo apt install php-fpm -y

Zaženite spletni strežnik Caddy.

sudo systemctl start caddy

V spletnem brskalniku odprite FQDN ( example.com) svojega primerka VPS.

Nastavite Caddy za zagon Wordpressa s proxy strežnikom PHP-FPM (ne-SSL)

Ustvarite osnovno datoteko konfiguracijske predloge na korenski ravni, imenovano caddy.confv /etc/caddy/imeniku, ki uporablja uvoz za dejansko konfiguracijsko datoteko vhost za vzorčno testno spletno mesto Wordpress, imenovano example.com.confv /etc/caddy/conf.d/imeniku, z echoukazom.

sudo su -c 'echo -e "import conf.d/*.conf" > /etc/caddy/caddy.conf' && sudo su -c 'echo -e "example.com:80 {\n\tredir http://www.example.com{url}\n}\nwww.example.com:80 {\n\terrors /var/log/caddy/example.com-error.log\n\tfastcgi / /var/run/php/php7.0-fpm.sock php\n\timport header.protection\n\tlog /var/log/caddy/example.com-access.log\n\trewrite {\n\t\tif {path} not_starts_with /wp-admin\n\t\tif {path} not_starts_with /wp-content\n\t\tif {path} not_starts_with /wp-includes\n\t\tto {path} {path}/ /index.php\n\t}\n\troot /var/www/html/\n}" > /etc/caddy/conf.d/example.com.conf' && sudo su -c 'echo -e "header / {\n\tX-XSS-Protection \"1; mode=block\"\n\tX-Content-Type-Options \"nosniff\"\n\tX-Frame-Options \"SAMEORIGIN\"\n}" > /etc/caddy/conf.d/header.protection'

Namestite unzipprogram, da izvlečete datoteko Wordpress tar-gzipped ( latest.tar.gz).

sudo apt install unzip

Prenesite latest.tar.gzdatoteko v /tmp/imenik, spremenite uporabniška in skupinska dovoljenja /var/www/htmlimenika na uporabnika www-datain skupine www-datater izvlecite vsebino latest.tar.gzdatoteke v /var/www/html/imenik.

sudo su - www-data -c "wget -N -P /tmp/ -q https://wordpress.org/latest.tar.gz" -s /bin/bash && sudo chown -R www-data.www-data /var/www/html && sudo su - www-data -c "tar -C /var/www/html/ -zxf /tmp/latest.tar.gz --strip-components=1" -s /bin/bash  && sudo su - www-data -c "rm /tmp/latest.tar.gz" -s /bin/bash

Namestite strežnik PHP-FPM za obdelavo datotek PHP in potrebnih razširitev PHP, potrebnih za interakcijo z Wordpressom.

sudo apt install php-curl php-fpm php-imagick php-mbstring php-mcrypt php-mysql php-pspell php-xmlrpc -y

Namestite strežnik baze podatkov MariaDB za shranjevanje podatkov za Wordpress.

sudo apt install mariadb-server -y

Izbirno: onemogočite, skip-name-resolveda se izognete kazni iskanja DNS za odjemalske povezave, izklopite TCP/IPposlušalnik baze podatkov in uporabite samo vtičnice unix.

sudo sed -i '26iskip-name-resolve\nskip-networking' /etc/mysql/mariadb.conf.d/50-server.cnf

Znova zaženite strežnik baze podatkov MariaDB na nove spremembe konfiguracije.

sudo systemctl restart mysql

Zavarujte strežnik baze podatkov MariaDB. Zamenjajte spodnji ********nosilec v prvem ukazu z novim root geslom.

sudo mysql -e "UPDATE mysql.user SET Password=PASSWORD('********') WHERE User='root'" && sudo mysql -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1')" && sudo mysql -e "DELETE FROM mysql.user WHERE User=''" && sudo mysql -e "DELETE FROM mysql.db WHERE Db='test' OR Db='test\_%'" && sudo mysql -e "" && sudo mysql -e "FLUSH PRIVILEGES"

Create a database, wordpress_example_com, for Wordpress; a specific database user, wordpress_example_com_admin and the minimal database permissions necessary, (ALTER, CREATE, DELETE, DROP, INDEX, INSERT, SELECT, & UPDATE ), for Wordpress core and plugin installations' day to day functioning and core/plugin updates. Replace the example_com in wordpress_example_com with your actual domain name, example_com in wordpress_example_com_admin with your actual domain name and ******** with a new password specifically for the wordpress_example_com_admin user.

sudo mysql -e "CREATE DATABASE wordpress_example_com DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci" && sudo mysql -e "CREATE USER 'wordpress_example_com_admin'@'localhost' IDENTIFIED BY '********'; GRANT USAGE ON *.* TO 'wordpress_example_com_admin'@'localhost';" && sudo mysql -e "GRANT ALTER, CREATE, DELETE, DROP, INDEX, INSERT, SELECT, UPDATE ON wordpress_example_com.* TO 'wordpress_example_com_admin'@'localhost';" && sudo mysql -e "FLUSH PRIVILEGES"

Create the Wordpress configuration file, wp-config.php, in the /var/www/html directory. Replace the example_com in wordpress_example_com with your actual domain name, example_com in wordpress_example_com_admin with your actual domain name and ******** with a new password specifically for the wordpress_example_com_admin user.

sudo su - www-data -c 'echo -e "<?php\ndefine('\'DB_CHARSET''\'', '\'utf8''\'');\ndefine('\'DB_COLLATE''\'', '\'''\'');\ndefine('\'DB_HOST''\'', '\'localhost''\'');\ndefine('\'DB_NAME''\'', '\'wordpress_example_com''\'');\ndefine('\'DB_PASSWORD''\'', '\'********''\'');\ndefine('\'DB_USER''\'', '\'wordpress_example_com_admin''\'');\ndefine('\'FS_METHOD''\'', '\'direct''\'');\ndefine('\'WP_DEBUG''\'', false);" > /var/www/html/wp-config.php' -s /bin/bash && sudo su -c www-data -c "curl -s https://api.wordpress.org/secret-key/1.1/salt/ >> /var/www/html/wp-config.php" && sudo su - www-data -c 'echo -e "\$table_prefix  = '\'wp_''\'';\nif ( !defined('\'ABSPATH''\'') )\n\tdefine('\'ABSPATH''\'', dirname(__FILE__) . '\'/''\'');\nrequire_once(ABSPATH . '\'wp-settings.php''\'');\nfunction _remove_script_version( \$src ){ if ( strpos( \$src, '\'ver=''\'' ) ) \$src = remove_query_arg( '\'ver''\'', \$src ); return \$src; }\nadd_filter( '\'script_loader_src''\'', '\'_remove_script_version''\'', 15, 1 );\nadd_filter( '\'style_loader_src''\'', '\'_remove_script_version''\'', 15, 1 );" >> /var/www/html/wp-config.php' -s /bin/bash

Start the Caddy web server.

sudo systemctl start caddy

Open your web browser to the FQDN (example.com) of your VPS instance. You will see a language selection page. After selecting the language, click the blue Continue button, on the bottom right, to go to the next step of the Wordpress installation.

On the next page, enter a title for your website in the Site Title field (1), an administrator's username in the Username field (2). Use the generated password or input your own password in the Password field (3). Enter a valid email address in the Your Email field (4) and enable or leave disabled the Search Engine Visibility option (5), depending on whether your site is in the building phase. When you are satisfied, click the gray Install Wordpress button (6) to complete the Wordpress setup.

You will arrive in the Wordpress administration area. The initial installation of Wordpress is now complete.

Setup Caddy To Run Wordpress By Proxying The PHP-FPM Server (Non-SSL)

Create a basic, root level configuration template file named caddy.conf in the /etc/caddy/ directory which uses an import for the actual vhost configuration file for a sample Wordpress test web site named example.com.conf in the /etc/caddy/conf.d/ directory using the echo command.

sudo su -c 'echo -e "import conf.d/*.conf" > /etc/caddy/caddy.conf' && sudo su -c 'echo -e "example.com {\n\tredir https://www.example.com{url}\n}\nwww.example.com {\n\terrors /var/log/caddy/example.com-error.log\n\tfastcgi / /var/run/php/php7.0-fpm.sock php\n\timport header.protection\n\tlog /var/log/caddy/example.com-access.log\n\trewrite {\n\t\tif {path} not_starts_with /wp-admin\n\t\tif {path} not_starts_with /wp-content\n\t\tif {path} not_starts_with /wp-includes\n\t\tto {path} {path}/ /index.php\n\t}\n\troot /var/www/html/\n\ttls [email protected]\n}" > /etc/caddy/conf.d/example.com.conf' && sudo su -c 'echo -e "header / {\n\tX-XSS-Protection \"1; mode=block\"\n\tX-Content-Type-Options \"nosniff\"\n\tX-Frame-Options \"SAMEORIGIN\"\n}" > /etc/caddy/conf.d/header.protection'

Install the unzip program in order to extract the Wordpress tar-gzipped file, (latest.tar.gz).

sudo apt install unzip

Download the latest.tar.gz file into the /tmp/ directory, change the user and group permissions of the /var/www/html directory to the user www-data and group www-data and extract the contents of the latest.tar.gz file into the /var/www/html/ directory.

sudo su - www-data -c "wget -N -P /tmp/ -q https://wordpress.org/latest.tar.gz" -s /bin/bash && sudo chown -R www-data.www-data /var/www/html && sudo su - www-data -c "tar -C /var/www/html/ -zxf /tmp/latest.tar.gz --strip-components=1" -s /bin/bash  && sudo su - www-data -c "rm /tmp/latest.tar.gz" -s /bin/bash

Install the PHP-FPM server to process PHP files and the required PHP extensions required to interact with Wordpress.

sudo apt install php-curl php-fpm php-imagick php-mbstring php-mcrypt php-mysql php-pspell php-xmlrpc -y

Install the MariaDB database server to store data for Wordpress.

sudo apt install mariadb-server -y

Optional: Disable skip-name-resolve to avoid the DNS lookup penalty for client connections, turn off the database TCP/IP listener and use unix sockets only.

sudo sed -i '26iskip-name-resolve\nskip-networking' /etc/mysql/mariadb.conf.d/50-server.cnf

Restart the MariaDB database server to the new configuration changes.

sudo systemctl restart mysql

Secure the MariaDB database server. Replace the ******** holder below in the first command with a new root password.

sudo mysql -e "UPDATE mysql.user SET Password=PASSWORD('********') WHERE User='root'" && sudo mysql -e "DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1')" && sudo mysql -e "DELETE FROM mysql.user WHERE User=''" && sudo mysql -e "DELETE FROM mysql.db WHERE Db='test' OR Db='test\_%'" && sudo mysql -e "" && sudo mysql -e "FLUSH PRIVILEGES"

Create a database, wordpress_example_com, for Wordpress; a specific database user, wordpress_example_com_admin and the minimal database permissions necessary (ALTER, CREATE, DELETE, DROP, INDEX, INSERT, SELECT, & UPDATE )for Wordpress core and plugin installations' day to day functioning and core/plugin updates. Replace the example_com in wordpress_example_com with your actual domain name, example_com in wordpress_example_com_admin with your actual domain name and ******** with a new password specifically for the wordpress_example_com_admin user.

sudo mysql -e "CREATE DATABASE wordpress_example_com DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci" && sudo mysql -e "CREATE USER 'wordpress_example_com_admin'@'localhost' IDENTIFIED BY '********'; GRANT USAGE ON *.* TO 'wordpress_example_com_admin'@'localhost';" && sudo mysql -e "GRANT ALTER, CREATE, DELETE, DROP, INDEX, INSERT, SELECT, UPDATE ON wordpress_example_com.* TO 'wordpress_example_com_admin'@'localhost';" && sudo mysql -e "FLUSH PRIVILEGES"

Create the Wordpress configuration file, wp-config.php, in the /var/www/html directory. Replace the example_com in wordpress_example_com with your actual domain name, example_com in wordpress_example_com_admin with your actual domain name and ******** with a new password specifically for the wordpress_example_com_admin user.

sudo su - www-data -c 'echo -e "<?php\ndefine('\'DB_CHARSET''\'', '\'utf8''\'');\ndefine('\'DB_COLLATE''\'', '\'''\'');\ndefine('\'DB_HOST''\'', '\'localhost''\'');\ndefine('\'DB_NAME''\'', '\'wordpress_example_com''\'');\ndefine('\'DB_PASSWORD''\'', '\'********''\'');\ndefine('\'DB_USER''\'', '\'wordpress_example_com_admin''\'');\ndefine('\'FS_METHOD''\'', '\'direct''\'');\ndefine('\'WP_DEBUG''\'', false);" > /var/www/html/wp-config.php' -s /bin/bash && sudo su -c www-data -c "curl -s https://api.wordpress.org/secret-key/1.1/salt/ >> /var/www/html/wp-config.php" && sudo su - www-data -c 'echo -e "\$table_prefix  = '\'wp_''\'';\nif ( !defined('\'ABSPATH''\'') )\n\tdefine('\'ABSPATH''\'', dirname(__FILE__) . '\'/''\'');\nrequire_once(ABSPATH . '\'wp-settings.php''\'');\nfunction _remove_script_version( \$src ){ if ( strpos( \$src, '\'ver=''\'' ) ) \$src = remove_query_arg( '\'ver''\'', \$src ); return \$src; }\nadd_filter( '\'script_loader_src''\'', '\'_remove_script_version''\'', 15, 1 );\nadd_filter( '\'style_loader_src''\'', '\'_remove_script_version''\'', 15, 1 );" >> /var/www/html/wp-config.php' -s /bin/bash

Start the Caddy web server.

sudo systemctl start caddy

Open your web browser to the FQDN (example.com) of your VPS instance. After selecting the language, click the blue Continue button, on the bottom right, to go to the next step of the Wordpress installation.

On the next page, enter a title for your website in the Site Title field (1), an administrator's username in the Username field (2). Use the generated password or input your own password in the Password field (3). Enter a valid email address in the Your Email field (4) and enable or leave disabled the Search Engine Visibility option (5), depending on whether your site is in the building phase. When you are satisfied, click the gray Install Wordpress button (6) to complete the Wordpress setup.

You will arrive in the Wordpress administration area. The initial installation of Wordpress is now complete.