add-apt-repository ppa:webupd8team/java # nalinkovanie repozitára s java balíčkami
apt-get update
apt-get install oracle-java8-set-default

apt install oracle-java8-unlimited-jce-policy 

Iptables -t nat -A PREROUTING -i eth0 -p tcp -dport 80 -j REDIRECT --to-port 8080
Iptables -t nat -A PREROUTING -i eth0 -p tcp -dport 443 -j REDIRECT --to-port 8443

<?xml version='1.0' encoding='UTF-8'?>
<server xmlns="urn:jboss:domain:4.2">
	...
	<profile>
		<subsystem xmlns="urn:jboss:domain:logging:3.0">
            ...
            <!-- Vypnutie zbytočných info hlášok o ukončení websocket spojenia -->
            <logger category="org.cometd.websocket.server.WebSocketTransport$WebSocketScheduler$1">
                <level name="WARN"/>
            </logger>
            ...
        </subsystem>
		...
 		<subsystem xmlns="urn:jboss:domain:undertow:3.1">
			<server name="default-server">
				<host name="default-host" alias="localhost">
                    <location name="/" handler="welcome-content"/>
                    <filter-ref name="gzipFilter" predicate="not min-content-size(450)"/>
                    <filter-ref name="Strict-Transport-Security-header"/>
                    <filter-ref name="Vary-header"/>
                    <filter-ref name="X-Frame-Options"/>
                    <filter-ref name="X-Content-Type-Options"/>
                    <filter-ref name="X-XSS-Protection"/>
                    <filter-ref name="Referrer-Policy"/>
                    <filter-ref name="Content-Security-Policy"/>
                </host>
            </server>
            ...
            <filters>
                <response-header name="Vary-header" header-name="Vary" header-value="Accept-Encoding"/>
                <response-header name="Strict-Transport-Security-header" header-name="Strict-Transport-Security" header-value="max-age=31536000; includeSubDomains"/>
                <!-- Nastavenia pre Cross-Origin Resource Sharing (nepoužívané/zakázané) -->
                <response-header name="Access-Control-Allow-Origin" header-name="Access-Control-Allow-Origin" header-value="*"/>
                <response-header name="Access-Control-Allow-Methods" header-name="Access-Control-Allow-Methods" header-value="GET, POST, OPTIONS, PUT"/>
                <response-header name="Access-Control-Allow-Headers" header-name="Access-Control-Allow-Headers" header-value="accept, authorization, content-type, x-requested-with"/>
                <response-header name="Access-Control-Allow-Credentials" header-name="Access-Control-Allow-Credentials" header-value="true"/>
                <response-header name="Access-Control-Max-Age" header-name="Access-Control-Max-Age" header-value="1"/>
                <!-- Zakázané vkladanie stránok do frame (starší spôsob) -->
                <response-header name="X-Frame-Options" header-name="X-Frame-Options" header-value="DENY"/>
                <!-- Vynútené použitie MIME typu nastaveného v HTTP hlavičke -->
                <response-header name="X-Content-Type-Options" header-name="X-Content-Type-Options" header-value="nosniff"/>
                <!-- Zakázané zobrazenie stránky, ak bol detekovaný cross-site scripting (XSS) útok -->
                <response-header name="X-XSS-Protection" header-name="X-XSS-Protection" header-value="1; mode=block"/>
                <!-- Neodosielanie referrer informácií -->
                <response-header name="Referrer-Policy" header-name="Referrer-Policy" header-value="no-referrer"/>
                <!-- Nastavenie bezpečnostnej politiky obsahu:
                     - zakázané vkladanie do frame (nový spôsob)
                     - predvolene povolený zdroj obsahu z hostiteľskej domény
                       - pre CSS štýly povolené aj zabezpečené https odkazy a inline
                       - pre súbory písiem povolené aj google písma
                       - pre skripty povolené inline aj evaluácia
                       - zakázané plugin objekty (flash a pod.)
                     - povolené pripájanie z ľubovolnej lokality
                -->
                <response-header name="Content-Security-Policy" header-name="Content-Security-Policy" header-value="frame-ancestors 'none'; default-src 'self'; style-src https: 'self' 'unsafe-inline'; font-src 'self' https://themes.googleusercontent.com https://fonts.gstatic.com; script-src 'self' 'unsafe-inline' 'unsafe-eval'; object-src 'none'; connect-src *"/>
                <gzip name="gzipFilter"/>
            </filters>
        </subsystem>            
    </profile>     		
	...
	<interfaces>
        ...
        <interface name="public">
            <!-- Nastavenie bind adresy na vsetky sietove interface, kvoli tomu aby bol Wildfly pristupny aj z vonku -->
            <inet-address value="${jboss.bind.address:0.0.0.0}"/>
        </interface>
    </interfaces>


	<socket-binding-group name="standard-sockets" default-interface="public" port-offset="${jboss.socket.binding.port-offset:0}">
        ...
        <!-- Nastavenie portov pre HTTP a HTTPS na všeobecne používané hodnoty, pozor toto nemeniť pri inštalácii na Linuxe, viď kapitola o inštalácii na Linuxe nižšie -->
        <socket-binding name="http" port="${jboss.http.port:80}"/>
        <socket-binding name="https" port="${jboss.https.port:443}"/>
        ...
    </socket-binding-group>    
</server>

<?xml version='1.0' encoding='UTF-8'?>
<server xmlns="urn:jboss:domain:4.2">
    ...
	<system-properties>
        <!-- Minimálna dĺžka Diffie-Helman kľúča -->
        <property name="jdk.tls.ephemeralDHKeySize" value="2048"/>
    </system-properties>

	<management>
        <security-realms>
            ...
            <!-- Security realn undertowTLSRealm je potrebné nastaviť iba v prípade konfigurácie HTTPS, zároveň aj pre overovanie cez klientské certifikáty -->
            <security-realm name="undertowTLSRealm">
                <server-identities>
                    <ssl protocol="TLS">
                        <!-- Cesta/heslo ku keystore kde je uložený SSL certifikát pre HTTPS s definovaným aliasom, napr. nb1mgre1.ipesoft-int.sk -->
                        <keystore path="server.jks" relative-to="jboss.server.config.dir" keystore-password="secret" alias="nb1mgre1.ipesoft-int.sk" key-password="secret"/>
                    </ssl>
                </server-identities>
                <!-- Časť "authentication" je potrebné nastaviť iba pre overovanie cez klientské certifikáty -->
                <authentication>
                    <truststore path="client-certificates.jks" relative-to="jboss.server.config.dir" keystore-password="secret"/>
                </authentication>
            </security-realm>
        </security-realms>
        ...
    </management>

	<profile>
 	...
        <subsystem xmlns="urn:jboss:domain:undertow:3.1">
            ...
            <server name="default-server">
                ...               
                <!-- !!! Atribút verify-client je potrebné nastaviť na hodnotu REQUESTED v prípade ak je potrebná autentifikácia cez klientské certifikáty, inak ho netreba meniť -->
                <https-listener name="https" socket-binding="https" security-realm="undertowTLSRealm" verify-client="NOT_REQUESTED"
                                enabled-protocols="TLSv1.2,TLSv1.1"
                                enabled-cipher-suites="TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,TLS_DHE_RSA_WITH_AES_256_CBC_SHA256"
                                enable-http2="true"/>
		</subsystem>            
    </profile>

</server>

<?xml version='1.0' encoding='UTF-8'?>
<server xmlns="urn:jboss:domain:4.2">
	...
	<profile>
	...
        <subsystem xmlns="urn:jboss:domain:undertow:3.1">
            ...
            <server name="default-server">
				<!-- Atribút redirect-socket nastaviť iba v prípade výhradnej komunikácie cez HTTPS -->
                <http-listener name="default" socket-binding="http" redirect-socket="https"/>
			</server>
            ...
		</subsystem>            
    </profile>
</server>      

<?xml version='1.0' encoding='UTF-8'?>
<server xmlns="urn:jboss:domain:4.2">
	...
	<profile>
	...
        <subsystem xmlns="urn:jboss:domain:undertow:3.1">
            ...
            <server name="default-server">
				...
				<host name="default-host" alias="localhost">
					...
						<!-- Atribút predicate treba nastaviť na HTTP port definovaný v poslednej časti standalone.xml-->
						<filter-ref name="http-to-https" predicate="equals(%p,8080)"/>
					...
				</host>
	            ...
            <filter-ref name="http-to-https" predicate="equals(%p,8080)"/>
			</server>
            ...
			<filters>
				<!-- Atribút target treba nastaviť na finálnu doménu a port, %U je placeholder pre zvyšnú časť otváranej url linky-->
				<rewrite name="http-to-https" redirect="true" target="https://myhostname:8443%U"/>
			</filters>
		</subsystem>            
    </profile>
</server>