amichaelgrant amichaelgrant

## gist:90d99d7d5d48bf8fd209
failed (104: Connection reset by peer) while reading response header from upstream, client:
If you are getting the above error in nginx logs running in from of upstream servers you may consider doing this as it worked for me:
check the ulimit on the machines and ensure it is high enough to handle the load coming in. 'ulimit' on linux, I am told determines the maximum number of open files the kernel can handle.

The way I did that?
modifying limits: for open files:
--------------------------------
add or change this line in /etc/systcl.conf
fs.file-max = <limit-number>

## gist:5866230
Configuring Nginx for Apache Tomcat 7
September 23, 2011 Java, NginX, Tomcat, Ubuntu 19 comments

Apache Tomcat can be the first choice of an Application Server for someone new to Java world. There are obviously other servers such as JBoss Application Server and IBM WebSphere but those may be slightly difficult for a newbie.

In some situations, like when we are serving a few websites with Nginx over port 80 (HTTP), it is required to configure Nginx in order to serve our Java web application which is running on Apache Tomcat. It is basically using Nginx as a Reverse Proxy This can be done with a new server section in Nginx  configuration file (it is in /etc/nginx/sites-available/default by default) :

server {
    listen mysite.com:80;
    server_name  mysite.com;

## OS X network optimize.txt
#
# Reboot into recovery mode (cmd +r )  and in the terminal
#
nvram boot-args="serverperfmode=1 ncl=262144"
#reboot


#
# In regular mode

## nginx-geoip-module.md

      
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                amichaelgrant
                / nginx-geoip-module.md
            
            
              Created
              September 9, 2018 07:29
                — forked from VirtuBox/nginx-geoip-module.md
            
              
                How to configure GeoIP module for Nginx
              
          
    Create a folder to store the databases :
mkdir -p /usr/share/GeoIP

Download Country IP database
wget http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz
gunzip GeoIP.dat.gz


## nginx.conf
# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

## supervisor.conf
; Sample supervisor config file.

[unix_http_server]
file=/tmp/supervisor.sock   ; (the path to the socket file)
;chmod=0700                 ; sockef file mode (default 0700)
;chown=nobody:nogroup       ; socket file uid:gid owner
;username=user              ; (default is no username (open server))
;password=123               ; (default is no password (open server))

;[inet_http_server]         ; inet (TCP) server disabled by default

## performance.txt
#!/bin/bash
echo "*****************************************"
echo " Based on information from Google"
echo " http://dev.chromium.org/spdy/spdy-best-practices"
echo "*****************************************"
sudo su
yum –y update
echo "*****************************************"
echo " Changing initcwnd and initrwnd"
echo " Step 1: check route settings."

## gist:dde940ac1378c1bceca37cf52ee5f95f
> console.log(new Buffer("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(new Buffer("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
Hello World

## gist:f7ff540b62a0d5561b2a279b1ba0d062
https://kernelnewbies.org/OutreachyfirstpatchSetup?action=show&redirect=OPWfirstpatchSetup

## gist:6cedac7337ea32595becac1906506629
sudo apt-get install git-core build-essential autoconf automake libtool libncurses5 libncurses5-dev make libjpeg-dev pkg-config unixodbc unixodbc-dev zlib1g-dev libcurl4-openssl-dev libexpat1-dev libssl-dev libtiff4-dev libx11-dev unixodbc-dev python2.7-dev zlib1g-dev libzrtpcpp-dev libasound2-dev libogg-dev libvorbis-dev libperl-dev libgdbm-dev libdb-dev python-dev uuid-dev bison autoconf g++ libncurses-dev
	failed (104: Connection reset by peer) while reading response header from upstream, client:
	If you are getting the above error in nginx logs running in from of upstream servers you may consider doing this as it worked for me:
	check the ulimit on the machines and ensure it is high enough to handle the load coming in. 'ulimit' on linux, I am told determines the maximum number of open files the kernel can handle.

	The way I did that?
	modifying limits: for open files:
	--------------------------------
	add or change this line in /etc/systcl.conf
	fs.file-max = <limit-number>
	Configuring Nginx for Apache Tomcat 7
	September 23, 2011 Java, NginX, Tomcat, Ubuntu 19 comments

	Apache Tomcat can be the first choice of an Application Server for someone new to Java world. There are obviously other servers such as JBoss Application Server and IBM WebSphere but those may be slightly difficult for a newbie.

	In some situations, like when we are serving a few websites with Nginx over port 80 (HTTP), it is required to configure Nginx in order to serve our Java web application which is running on Apache Tomcat. It is basically using Nginx as a Reverse Proxy This can be done with a new server section in Nginx configuration file (it is in /etc/nginx/sites-available/default by default) :

	server {
	listen mysite.com:80;
	server_name mysite.com;
	#
	# Reboot into recovery mode (cmd +r ) and in the terminal
	#
	nvram boot-args="serverperfmode=1 ncl=262144"
	#reboot



	#
	# In regular mode
	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048
	; Sample supervisor config file.

	[unix_http_server]
	file=/tmp/supervisor.sock ; (the path to the socket file)
	;chmod=0700 ; sockef file mode (default 0700)
	;chown=nobody:nogroup ; socket file uid:gid owner
	;username=user ; (default is no username (open server))
	;password=123 ; (default is no password (open server))

	;[inet_http_server] ; inet (TCP) server disabled by default
	#!/bin/bash
	echo "*****************************************"
	echo " Based on information from Google"
	echo " http://dev.chromium.org/spdy/spdy-best-practices"
	echo "*****************************************"
	sudo su
	yum –y update
	echo "*****************************************"
	echo " Changing initcwnd and initrwnd"
	echo " Step 1: check route settings."
	> console.log(new Buffer("Hello World").toString('base64'));
	SGVsbG8gV29ybGQ=
	> console.log(new Buffer("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
	Hello World