Ich frage hier, weil ich, egal was ich versuche, immer wieder bemerke, dass Bilder nach einer Weile neu geladen werden. Grundsätzlich möchte ich, dass Bilder 11 Monate lang zwischengespeichert werden, aber wenn überhaupt, scheinen sie nur Minuten oder Stunden zwischengespeichert zu werden. Dies ist eine node.js-Anwendung mit statischen Dateien, die von Apache bereitgestellt werden. Die Bilder befinden sich im öffentlichen/statischen Verzeichnis. Das habe ich:
NameVirtualHost *:443
<VirtualHost *:443>
ServerName app.site.com
ProxyPreserveHost On
RequestHeader set "X-Forwarded-Proto" expr=%{REQUEST_SCHEME}
RequestHeader set "X-Forwarded-SSL" expr=%{HTTPS}
Alias "/static/" "/home/node/app/public/static/"
<Directory /home/node/app/public>
Options FollowSymLinks
AllowOverride None
Require all granted
ExpiresActive On
ExpiresByType image/jpeg "access plus 11 months"
ExpiresByType image/jpg "access plus 11 months"
ExpiresByType image/png "access plus 11 months"
ExpiresByType image/gif "access plus 11 months"
</Directory>
RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule /(.*) ws://localhost:3210/$1 [P,L]
RewriteCond %{HTTP:Upgrade} !=websocket [NC]
RewriteRule ^/(?!static/)(.*)$ http://localhost:3210/$1 [P,L]
SSLCertificateFile /root/.lego/certificates/_.site.com.crt
SSLCertificateKeyFile /root/.lego/certificates/_.site.com.key
</VirtualHost>
Wenn ich die Konsole öffne und neu lade, um die Netzwerkaktivität zu erfassen, wird dies auf einem zufälligen Bild angezeigt:
200 OK
Response header:
HTTP/1.1 200 OK
Date: Wed, 12 Aug 2020 10:27:50 GMT
Server: Apache
Last-Modified: Mon, 01 Jun 2020 19:03:16 GMT
ETag: "3313-5a70a727f2500"
Accept-Ranges: bytes
Content-Length: 13075
Cache-Control: max-age=28512000
Expires: Thu, 08 Jul 2021 10:27:50 GMT
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: image/png
Request header:
GET /static/img/profile_5a914158141c9367e38c4d8a.png?ver=74 HTTP/1.1
Host: hue.merkoba.com
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:79.0) Gecko/20100101 Firefox/79.0
Accept: image/webp,*/*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Referer: https://app.site.com/
Cookie: connect.sid=s%3AUZb7Zopuy6LId0iMeMYVaKDtfuppIIxL.8F7Hx%2FeqrodOsS2fHPZjOqRDKTBM4RoBwcKiUu0PUUg; io=fbMMZAHDTJzbnoVvAAAo
Cache-Control: max-age=0
If-Modified-Since: Mon, 01 Jun 2020 19:03:16 GMT
If-None-Match: "3313-5a70a727f2500"
Einige Lockentests:
curl -vso /dev/null https://app.site.com/static/img/profile_5f192733805c646004ecf4c8.png?ver=1
* Trying 196.83.125.124:443...
* TCP_NODELAY set
* Connected to app.site.com (192.81.135.159) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
} [5 bytes data]
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
} [512 bytes data]
* TLSv1.3 (IN), TLS handshake, Server hello (2):
{ [112 bytes data]
* TLSv1.2 (IN), TLS handshake, Certificate (11):
{ [2391 bytes data]
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
{ [147 bytes data]
* TLSv1.2 (IN), TLS handshake, Server finished (14):
{ [4 bytes data]
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
} [37 bytes data]
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
} [1 bytes data]
* TLSv1.2 (OUT), TLS handshake, Finished (20):
} [16 bytes data]
* TLSv1.2 (IN), TLS handshake, Finished (20):
{ [16 bytes data]
* SSL connection using TLSv1.2 / ECDHE-ECDSA-AES256-GCM-SHA384
* ALPN, server accepted to use http/1.1
* Server certificate:
* subject: CN=*.site.com
* start date: May 14 20:51:05 2020 GMT
* expire date: Aug 12 20:51:05 2020 GMT
* subjectAltName: host "app.site.com" matched cert's "*.site.com"
* issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
* SSL certificate verify ok.
} [5 bytes data]
> GET /static/img/profile_5f192733805c646004ecf4c8.png?ver=1 HTTP/1.1
> Host: app.site.com
> User-Agent: curl/7.68.0
> Accept: */*
>
{ [5 bytes data]
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Date: Wed, 12 Aug 2020 10:30:40 GMT
< Server: Apache
< Last-Modified: Thu, 23 Jul 2020 06:01:07 GMT
< ETag: "16f27-5ab15950eeec0"
< Accept-Ranges: bytes
< Content-Length: 93991
< Cache-Control: max-age=28512000
< Expires: Thu, 08 Jul 2021 10:30:40 GMT
< Content-Type: image/png
<
{ [5 bytes data]
* Connection #0 to host app.site.com left intact