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Slow downloads over SSL

February 01, 2015 02:04PM
Hi,

I'm trying to find answers to a problem that I'm currently experiencing in all my servers. Downloads offered over HTTPS are at least 4 times slower than those delivered over HTTP. All these servers are running nginx/1.6.2. Here is my nginx.conf in case someone have experienced something similar and could give me a hint. By the way, when I say 4 x slower I'm being optimistic... I can download 4-5MB/s over HTTP while https download are 600-700kb/s the fastest I've seen.

user www-data;
worker_processes 2;
pid /run/nginx.pid;
worker_rlimit_nofile 4096;

events {
worker_connections 1024;
multi_accept on;
use epoll;
}

http {

# SSL Configuration
###################
ssl_buffer_size 8k;
ssl_session_cache shared:SSL_CACHE:20m;
ssl_session_timeout 4h;
ssl_session_tickets on;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers ALL:!ADH:!EXP:!LOW:!RC2:!3DES:!SEED:!RC4:+HIGH:+MEDIUM;
ssl_prefer_server_ciphers on;


# Custom Settings
#################

open_file_cache max=10000 inactive=20s;
open_file_cache_valid 30s;
open_file_cache_min_uses 2;
open_file_cache_errors on;
charset UTF-8;

client_body_buffer_size 128K;
client_header_buffer_size 1k;
client_max_body_size 25m;
large_client_header_buffers 4 8k;

fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
fastcgi_read_timeout 120s;

client_body_timeout 20;
client_header_timeout 20;
keepalive_timeout 25;
send_timeout 20;
reset_timedout_connection on;


# Basic Settings
################

sendfile on;
tcp_nopush on;
tcp_nodelay on;
types_hash_max_size 2048;
server_tokens off;

server_names_hash_bucket_size 64;
server_name_in_redirect off;

include /etc/nginx/mime.types;
default_type application/octet-stream;


# Logging Settings
##################

access_log off;
error_log /var/log/nginx/error.log;


# Gzip Settings
###############

gzip on;
#gzip_disable "msie6";
gzip_disable "MSIE [1-6]\.(?!.*SV1)";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 5;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript;


# Virtual Host Configs
######################

include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
Subject Author Posted

Slow downloads over SSL

rafaelr February 01, 2015 02:04PM

Re: Slow downloads over SSL

B.R. February 01, 2015 03:46PM

Re: Slow downloads over SSL

rafaelr February 04, 2015 08:23AM

Re: Slow downloads over SSL

B.R. February 04, 2015 12:58PM

Re: Slow downloads over SSL

kyprizel February 05, 2015 08:26AM

Re: Slow downloads over SSL

jtan February 01, 2015 08:52PM

Re: Slow downloads over SSL

rafaelr February 04, 2015 08:29AM



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