Skip to content

Instantly share code, notes, and snippets.

View cuiwm's full-sized avatar
🎯
Focusing

cuiwm cuiwm

🎯
Focusing
  • UK
View GitHub Profile
@chenshaoju
chenshaoju / sysctl.conf
Last active July 3, 2025 00:44
sysctl.conf
#
# /etc/sysctl.conf - Configuration file for setting system variables
# See /etc/sysctl.d/ for additonal system variables
# See sysctl.conf (5) for information.
#
#kernel.domainname = example.com
# Uncomment the following to stop low-level messages on console
#kernel.printk = 3 4 1 3
@yp2800
yp2800 / sysctl.conf
Created February 13, 2014 03:07
sysctl.conf
/etc/sysctl.conf
kernel.ctrl-alt-del=1
kernel.sysrq=0
kernel.panic=10
kernel.core_pattern=/dev/null
kernel.shmmax=262324224
fs.file-max=128000
net.core.wmem_default=200100
net.core.rmem_default=200100
net.core.wmem_max=3202200
@vdel26
vdel26 / nginx
Last active September 24, 2025 21:37
Openresty init.d script
#!/bin/sh
#
# chkconfig: 2345 55 25
# Description: Nginx init.d script, put in /etc/init.d, chmod +x /etc/init.d/nginx
# For Debian, run: update-rc.d -f nginx defaults
# For CentOS, run: chkconfig --add nginx
#
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $all
@denji
denji / nginx-tuning.md
Last active December 26, 2025 05:46
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 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (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.

@yetithefoot
yetithefoot / stuns
Last active November 5, 2025 04:35 — forked from zziuni/stuns
STUN+TURN servers list
{url:'stun:stun01.sipphone.com'},
{url:'stun:stun.ekiga.net'},
{url:'stun:stun.fwdnet.net'},
{url:'stun:stun.ideasip.com'},
{url:'stun:stun.iptel.org'},
{url:'stun:stun.rixtelecom.se'},
{url:'stun:stun.schlund.de'},
{url:'stun:stun.l.google.com:19302'},
{url:'stun:stun1.l.google.com:19302'},
{url:'stun:stun2.l.google.com:19302'},
@plentz
plentz / nginx.conf
Last active December 31, 2025 03:14
Best nginx configuration for improved security(and performance)
# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048
@markd2
markd2 / runtime.m
Created July 9, 2013 20:55
Objective-C runtime metadata dumper.
#import <Foundation/Foundation.h>
#import <objc/runtime.h>
#import "typestring.h"
// clang -g -fobjc-arc -Wall -framework Foundation -o runtime typestring.m runtime.m
// Runtime reference, at least until Apple breaks the link
// http://developer.apple.com/library/ios/#documentation/Cocoa/Reference/ObjCRuntimeRef/Reference/reference.html
@rschmitty
rschmitty / sysctl.conf
Last active August 10, 2022 18:59
ubuntu sysctl.conf settings
# changes from http://www.cyberciti.biz/faq/linux-kernel-etcsysctl-conf-security-hardening/
# Protect ICMP attacks
net.ipv4.icmp_echo_ignore_broadcasts = 1
# Turn on protection for bad icmp error messages
net.ipv4.icmp_ignore_bogus_error_responses = 1
# Turn on syncookies for SYN flood attack protection
net.ipv4.tcp_syncookies = 1
@panzi
panzi / 00_head.html
Created November 1, 2012 04:58
Save/download data generated in JavaScript (1)
<!DOCTYPE html>
<html>
<head>
<title>Save Generated Data</title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge;chrome=1"/>
<script type="text/javascript">
// <![CDATA[
@zziuni
zziuni / stuns
Created September 18, 2012 08:05
STUN server list
# source : http://code.google.com/p/natvpn/source/browse/trunk/stun_server_list
# A list of available STUN server.
stun.l.google.com:19302
stun1.l.google.com:19302
stun2.l.google.com:19302
stun3.l.google.com:19302
stun4.l.google.com:19302
stun01.sipphone.com
stun.ekiga.net