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abregar / gist:48951e10ad170e3ab9d86c2fb5349152
Created January 18, 2017 10:02 — forked from supairish/gist:2951524
Nginx - how to limit requests by User Agent
http {
map $http_user_agent $limit_bots {
default '';
~*(google|bing|yandex|msnbot) $binary_remote_addr;
}
limit_req_zone $limit_bots zone=bots:10m rate=1r/m;
server {
@abregar
abregar / gist:3ac039a5f1fd84e8792fe7f492a66857
Created January 17, 2017 22:30 — forked from moneytoo/gist:ab3f34e4fddc2110675952f8280f49c5
nginx with OpenSSL 1.0.2 (ALPN) on CentOS 7, also available from https://brouken.com/brouken-centos-7-repo/
yum -y groupinstall 'Development Tools'
yum -y install wget openssl-devel libxml2-devel libxslt-devel gd-devel perl-ExtUtils-Embed GeoIP-devel rpmdevtools
OPENSSL="openssl-1.0.2j"
NGINX_VERSION="1.11.8-1"
NJS_VERSION="1.11.8.0.1.7-1"
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-$NGINX_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-geoip-$NGINX_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-image-filter-$NGINX_VERSION.el7.ngx.src.rpm
@abregar
abregar / jboss711.spec
Created January 3, 2017 13:21 — forked from stuart-warren/jboss711.spec
Jboss AS 7.11 RPM spec file (used with OpenShift on CentOS 6.5) - based on http://silverdire.com/2012/05/29/jboss-7-1-1-spec-file-for-rpm-builds/
%define jboss_version_full 7.1.1
Summary: JBoss Application Server
Name: jboss
Version: 7.1.1
Release: 5
License: LGPL
BuildArch: x86_64
Group: Applications/System
Source0: http://download.jboss.org/jbossas/7.1/jboss-as-{version}.Final/jboss-as-{version}.Final.zip
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abregar / nginx-tuning.md
Created September 14, 2016 19:59 — forked from denji/nginx-tuning.md
NGINX tuning for best performance

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400,000 to 500,000 requests per second (clustered), most what i saw is 50,000 to 80,000 (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

@abregar
abregar / post-mortem.md
Created September 9, 2016 08:57 — forked from joewiz/post-mortem.md
Recovery from nginx "Too many open files" error on Amazon AWS Linux

On Tue Oct 27, 2015, history.state.gov began buckling under load, intermittently issuing 500 errors. Nginx's error log was sprinkled with the following errors:

2015/10/27 21:48:36 [crit] 2475#0: accept4() failed (24: Too many open files) 2015/10/27 21:48:36 [alert] 2475#0: *7163915 socket() failed (24: Too many open files) while connecting to upstream...

An article at http://www.cyberciti.biz/faq/linux-unix-nginx-too-many-open-files/ provided directions that mostly worked. Below are the steps we followed. The steps that diverged from the article's directions are marked with an *.

    • Instead of using su to run ulimit on the nginx account, use ps aux | grep nginx to locate nginx's process IDs. Then query each process's file handle limits using cat /proc/pid/limits (where pid is the process id retrieved from ps). (Note: sudo may be necessary on your system for the cat command here, depending on your system.)
  2. Added fs.file-max = 70000 to /etc/sysctl.conf
  3. Added `nginx soft nofile 1
@abregar
abregar / gist:78a927ed6ff2ef4fe99a3e6126d423f2
Created August 18, 2016 14:00 — forked from soardex/gist:e95cdc230d1ac5b824b3
Install rbenv in CentOS 7
# install build dependencies
sudo yum install -y git-core zlib zlib-devel gcc-c++ patch readline readline-devel libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake libtool bison curl sqlite-devel
# clone and install rbenv environment
cd ~
git clone git://github.com/sstephenson/rbenv.git .rbenv
git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/bin:$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
@abregar
abregar / gist:f244852ca05dff6bacf41cab9d5a3c2b
Created August 17, 2016 14:58 — forked from jagregory/gist:710671
How to move to a fork after cloning
So you've cloned somebody's repo from github, but now you want to fork it and contribute back. Never fear!
Technically, when you fork "origin" should be your fork and "upstream" should be the project you forked; however, if you're willing to break this convention then it's easy.
* Off the top of my head *
1. Fork their repo on Github
2. In your local, add a new remote to your fork; then fetch it, and push your changes up to it
git remote add my-fork [email protected]