Working apache reverse proxy configuration for Plex!

jugzadmin · November 22, 2018, 2:08pm

First off, the apache2 conf file is to have a web interface that is exactly like being on localhost:32400. You still must have port forwarding set up and wherever you are trying to access plex from must have that port open in order for everything to work properly. If you are slightly paranoid about security, you can use this (my) apache2 conf file:
EDIT 5/9/18: Added blob: to media-src in Content-Security-Policy to allow trailers to play.

EDIT: Update as of 4/17/2019.
You will need to be using Apache2 >= 2.4.17 to use this and several mods (proxy, ssl, proxy_wstunnel, http, dir, env, headers, proxy_balancer, proxy_http, rewrite I think is all of them).

EDIT: Update as of 2/18/2021.

Updated Content Security Policy
Added Permissions Policy
Removed Rewrite
Added <Location> sections
gzip defalte for common files (javascript, xml, etc.)
Updated Ciphers

New config (February 2021)

    DEFINE plex_url 192.168.1.22
    DEFINE plex_port 32400
    DEFINE serv_name plex.domain.com
    ServerTokens Prod
    SSLStaplingCache "shmcb:${APACHE_LOG_DIR}/stapling-cache(150000)"
    SSLSessionCache "shmcb:${APACHE_LOG_DIR}/ssl_scache(512000)"
    SSLSessionCacheTimeout 300
### If you have Google's Mod PageSpeed, disable it ###
    <IfModule mod_pagespeed_ap24.c>
        ModPagespeed Off
    </IfModule>
<VirtualHost *:80>
    ServerName ${serv_name}
    Redirect / https://plex.domain.com
    ErrorLog ${APACHE_LOG_DIR}/plex.error.log
    CustomLog ${APACHE_LOG_DIR}/plex.access.log combined
</VirtualHost>
<VirtualHost *:443>
    ServerName ${serv_name}
    DocumentRoot /var/www/html
    ErrorLog ${APACHE_LOG_DIR}/plex.error.log
    CustomLog ${APACHE_LOG_DIR}/plex.access.log combined
### Let's Encrypt Section ###
    SSLCertificateFile /etc/letsencrypt/live/domain.com/fullchain.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/domain.com/privkey.pem
### Deny http1.0 requests ###
    Protocols h2 http/1.1
### Harden Security ###
    ProxyRequests Off
    ProxyPreserveHost On
    ProxyTimeout 600
    SSLProxyEngine On
    RequestHeader set Front-End-Https "On"
    ServerSignature Off
    SSLCompression Off
    SSLUseStapling On
    SSLStaplingResponderTimeout 20
    SSLStaplingReturnResponderErrors Off
    SSLSessionTickets Off
### Add headers ###
    RequestHeader set X-Forwarded-Proto 'https' env=HTTPS
    Header always set Strict-Transport-Security "max-age=15552000;"
    Header always set X-Content-Type-Options nosniff
    Header always set X-Robots-Tag none
    Header always set X-XSS-Protection "1; mode=block"
    Header always set X-Frame-Options "SAMEORIGIN"
    Header always set Referrer-Policy "same-origin"
    Header always set Permissions-Policy "geolocation=(self), midi=(self), sync-xhr=(self), microphone=(self), camera=(self), magnetometer=(self), gyroscope=(self), fullscreen=(self), payment=(self)"
### Content Security Policy for the overly paranoid - may break with Plex server updates (works with server version 1.21.3.4046 and 1.21.3.4021) ###
    Header always set Content-Security-Policy "default-src 'none'; base-uri 'self' ${serv_name}; font-src 'self' data: ${serv_name}; media-src 'self' data: blob: ${serv_name} https://*.plex.direct:32400 https://video.internetvideoarchive.net https://*.cloudfront.net; script-src 'self' 'unsafe-inline' 'unsafe-eval' domain.com ${serv_name}; style-src 'self' 'unsafe-inline' ${serv_name}; img-src 'self' data: blob: https: ${serv_name}; worker-src * blob:; frame-src 'self'; connect-src 'self' https: domain.com ${serv_name} wss://*.plex.direct:32400 wss://pubsub.plex.tv; object-src 'self' ${serv_name}; frame-ancestors 'self' domain.com ${serv_name}; form-action 'self' ${serv_name}; manifest-src 'self' ${serv_name}; script-src-elem 'self' 'unsafe-inline' domain.com ${serv_name} www.gstatic.com"
### Add secure ciphers ###
    SSLCipherSuite TLS-CHACHA20-POLY1305-SHA256:TLS-AES-256-GCM-SHA384:TLS-AES-128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256
### Only enable TLSv1.2 and TLSv1.3 ###
    SSLProtocol All -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
### Tell clients to use server defined ciphers and orders ###
    SSLHonorCipherOrder On
### If path is for Let's Encrypt, don't proxy ###
    ProxyPassMatch ^/.well-known !
### Plex Specific Section ###
 ## Plex has A LOT of javascript, xml and html. This helps a lot, but if it causes playback issues with devices, disable this section
    <IfModule mod_deflate.c>
        AddOutputFilterByType DEFLATE text/html
        AddOutputFilterByType DEFLATE text/plain
        AddOutputFilterByType DEFLATE text/css
        AddOutputFilterByType DEFLATE application/javascript
        AddOutputFilterByType DEFLATE text/javascript
        AddOutputFilterByType DEFLATE application/x-javascript
        AddOutputFilterByType DEFLATE image/svg+xml
        AddOutputFilterByType DEFLATE image/x-icon
        AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
        AddOutputFilterByType DEFLATE application/x-font
        AddOutputFilterByType DEFLATE application/x-font-opentype
        AddOutputFilterByType DEFLATE application/x-font-otf
        AddOutputFilterByType DEFLATE application/x-font-truetype
        AddOutputFilterByType DEFLATE application/x-font-ttf
        AddOutputFilterByType DEFLATE font/opentype
        AddOutputFilterByType DEFLATE font/otf
        AddOutputFilterByType DEFLATE font/ttf
        AddOutputFilterByType DEFLATE application/rss+xml
        AddOutputFilterByType DEFLATE application/xhtml+xml
        AddOutputFilterByType DEFLATE application/xml
        AddOutputFilterByType DEFLATE text/xml
        BrowserMatch ^Mozilla/4 gzip-only-text/html
        BrowserMatch ^Mozilla/4\.0[678] no-gzip
        BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
        Header append Vary User-Agent
    </IfModule>
 ## Proxy all web traffic here ## 
    <Location />
        ProxyPass http://${plex_url}:${plex_port}/
        ProxyPassReverse http://${plex_url}:${plex_port}/
    </Location>
 ## Proxy all websocket requests here ## 
    <Location /:/>
        ProxyPass wss://${plex_url}:${plex_port}/:/
        ProxyPassReverse wss://${plex_url}:${plex_port}/:/
    </Location>
### Don't know if we still need this ###
    <Proxy *>
        Order deny,allow
        Allow from all
    </Proxy>
    #RewriteEngine on
    #RewriteCond %{REQUEST_URI} !^/web
    #RewriteCond %{HTTP:X-Plex-Device} ^$
    #RewriteCond %{REQUEST_METHOD} !^(OPTIONS)$
    #RewriteCond %{QUERY_STRING} (^|&)X-Plex-Device=(&|$) [OR]
    #RewriteCond %{QUERY_STRING} !(^|&)X-Plex-Device=
    #RewriteRule ^/$ /web/$1 [R,L]
</VirtualHost>

Need URL subpath?

Change to this:

    <Location /plex/>
        ProxyPass http://${plex_url}:${plex_port}/
        ProxyPassReverse http://${plex_url}:${plex_port}/
    </Location>
 ## Proxy all websocket requests here ## 
    <Location /plex/:/>
        ProxyPass wss://${plex_url}:${plex_port}/:/
        ProxyPassReverse wss://${plex_url}:${plex_port}/:/
    </Location>

Old config (April 2019)

<IfModule mod_ssl.c>
	DEFINE plex_url 192.168.1.22
	DEFINE plex_port 32400
	DEFINE serv_name plex.domain.com
	ServerTokens Prod
	SSLStaplingCache "shmcb:${APACHE_LOG_DIR}/stapling-cache(150000)"
	SSLSessionCache "shmcb:${APACHE_LOG_DIR}/ssl_scache(512000)"
	SSLSessionCacheTimeout 300
	ModPagespeed Off
<VirtualHost *:80>
	ServerName ${serv_name}
	DocumentRoot /var/www/html
	ServerAdmin aw@hell.no
	RewriteEngine On
	RewriteCond %{SERVER_NAME} =${serv_name}
	RewriteCond %{HTTPS} Off
	RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
	ErrorLog ${APACHE_LOG_DIR}/${serv_name}.error.log
	CustomLog ${APACHE_LOG_DIR}/${serv_name}.access.log combined
</VirtualHost>
<VirtualHost *:443>
	ServerName ${serv_name}
	DocumentRoot /var/www/html
	ServerAdmin aw@hell.no
	ErrorLog ${APACHE_LOG_DIR}/${serv_name}.error.log
	CustomLog ${APACHE_LOG_DIR}/${serv_name}.access.log combined
### Let's Encrypt Section ###
	SSLCertificateFile /etc/letsencrypt/live/${serv_name}/fullchain.pem
	SSLCertificateKeyFile /etc/letsencrypt/live/${serv_name}/privkey.pem
	#Include /etc/letsencrypt/options-ssl-apache.conf
	Options -Includes -ExecCGI
### Deny http1.0 requests ###
	RewriteEngine On
	RewriteCond %{SERVER_PROTOCOL} ^HTTP/1\.0$
	#RewriteCond %{REQUEST_URI} !^/404/$
	RewriteRule ^ - [F]
### Harden Security ###
	ProxyRequests Off
	ProxyPreserveHost On
	ProxyTimeout 600
	ProxyReceiveBufferSize 4096
	SSLProxyEngine On
	RequestHeader set Front-End-Https "On"
	ServerSignature Off
	SSLCompression Off
	SSLUseStapling On
	SSLStaplingResponderTimeout 5
	SSLStaplingReturnResponderErrors Off
	SSLSessionTickets Off
	RequestHeader set X-Forwarded-Proto 'https' env=HTTPS
	Header always set Strict-Transport-Security "max-age=15552000; preload"
	Header always set X-Content-Type-Options nosniff
	Header always set X-Robots-Tag none
	Header always set X-XSS-Protection "1; mode=block"
	Header always set X-Frame-Options "SAMEORIGIN"
	Header always set Referrer-Policy "same-origin"
	Header always set Feature-Policy "accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none';"
	Header always set Content-Security-Policy "default-src 'self' https:; font-src 'self' data: ${plex_url} ${serv_name}; media-src 'self' blob: ${plex_url} ${serv_name}; script-src 'self' 'unsafe-inline' ${plex_url} ${serv_name} plex.tv www.gstatic.com; style-src 'self' ${plex_url} ${serv_name}; img-src 'self' data: blob: ${plex_url} ${serv_name} plex.tv *.plex.tv; worker-src *; frame-src 'none'; connect-src 'self' wss: https: ${plex_url} ${serv_name} plex.tv *.plex.direct *.plex.tv;"
	SSLCipherSuite ECDHE+RSA+AES256+GCM+SHA512:DHE+RSA+AES256+GCM+SHA512:ECDHE+RSA+AES256+GCM+SHA384:DHE+RSA+AES256+GCM+SHA384:ECDHE+RSA+AES256+SHA384:EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4
	SSLProtocol All -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
	SSLHonorCipherOrder On
### Plex Specific Section ###
	ProxyPass / http://${plex_url}:${plex_port}/
	ProxyPassReverse / http://${plex_url}:${plex_port}/
	ProxyPass /:/ ws://${plex_url}:${plex_port}/:/
	ProxyPassReverse /:/ ws://${plex_url}:${plex_port}/:/
	ProxyPass /:/ wss://${plex_url}:${plex_port}/:/
	ProxyPassReverse /:/ wss://${plex_url}:${plex_port}/:/
	LimitRequestBody 512000
	FileETag None
	TraceEnable off
	#Header edit Set-Cookie ^(.*)$ ;HttpOnly;Secure
	Timeout 60
	<Location /:/websockets/notifications>
		ProxyPass wss://${plex_url}:${plex_port}/:/websockets/notifications
		ProxyPassReverse wss://${plex_url}:${plex_port}/:/websockets/notifications
	</Location>
	<Proxy *>
		Order deny,allow
		Allow from all
	</Proxy>
	RewriteEngine on
	RewriteCond %{REQUEST_URI} !^/web
	RewriteCond %{HTTP:X-Plex-Device} ^$
	RewriteCond %{REQUEST_METHOD} !^(OPTIONS)$
	RewriteCond %{QUERY_STRING} (^|&)X-Plex-Device=(&|$) [OR]
	RewriteCond %{QUERY_STRING} !(^|&)X-Plex-Device=
	RewriteRule ^/$ /web/$1 [R,L]
</VirtualHost>
</IfModule>

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Working apache reverse proxy configuration for Plex!

New config (February 2021)

Need URL subpath?

Old config (April 2019)

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