45 lines
1.6 KiB
Nginx Configuration File
45 lines
1.6 KiB
Nginx Configuration File
# ----------------------------------------------------------------------
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# | SSL engine |
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# ----------------------------------------------------------------------
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# (1) Optimize SSL by caching session parameters for 24 hours.
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# This cuts down on the number of expensive SSL handshakes.
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# By enabling a cache, we tell the client to re-use the already
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# negotiated state.
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# Here 10m (10 MB) in ssl_session_cache is size value (not time).
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# 1 MB cache can store about 4000 sessions, so we can store 40000 sessions.
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#
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# (2) Use a higher keepalive timeout to reduce the need for repeated handshakes
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# (!) Shouldn't be done unless you serve primarily HTTPS.
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# Default is 75s
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#
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# (3) SSL buffer size
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# Set 1400 bytes to fit in one MTU.
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# https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_buffer_size
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#
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# (4) Disable session tickets
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# Session tickets keys are not auto-rotated. Only a HUP / restart will do
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# so and when a restart is performed the previous key is lost, which resets
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# all previous sessions.
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# Only enable session tickets if you set up a manual rotation mechanism.
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# https://trac.nginx.org/nginx/changeset/1356a3b9692441e163b4e78be4e9f5a46c7479e9/nginx
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# https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_tickets
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#
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# (5) Basic security improvements
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# (1)
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ssl_session_timeout 24h;
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ssl_session_cache shared:SSL:10m;
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# (2)
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keepalive_timeout 300s;
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# (3)
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# ssl_buffer_size 1400;
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# (4)
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ssl_session_tickets off;
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# (5)
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ssl_prefer_server_ciphers on;
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