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@bokner
bokner / digest_auth.erl
Created April 10, 2010 16:26
Erlang module implementing HTTP digest auth on client side
%% Author: bokner
%% Created: Apr 10, 2010
%% Description: HTTP digest authentication
%% Note: the code follows the informal explanation given on Wikipedia.
%% Note: the test/0 function doesn't intend to send a proper data to webdav service,
%% it just shows how to pass the authorization.
%% Disclaimer: Use on your own risk. The author disclaims any liability
%% with regard to using this code.
-module(digest_auth).
@llj098
llj098 / Makefile
Created December 23, 2010 01:36
a sample tcp server runs in kernel
obj-m += tcp_svr_sample.o
all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clea
@egobrain
egobrain / file_upload_example.html
Created April 6, 2012 05:44
File upload example that uses new Browser HTML5 Upload API.
<style>
#dropZone {
color: #555;
font-size: 18px;
text-align: center;
width: 400px;
padding: 50px 0;
margin: 50px auto;
@egobrain
egobrain / cowboy_multipart_uploader.erl
Created May 30, 2012 06:47
Cowboy files uploader.
%%%-------------------------------------------------------------------
%%% @author egobrain <egobrain@linux-ympb>
%%% @copyright (C) 2012, egobrain
%%% @doc
%%% Function for uploading files and properties,which were sent as a
%%% multipart. Files are stored in tmp_folder with random name,
%%% generated by tmp_filename function.
%%% @end
%%% Created : 25 Mar 2012 by egobrain <egobrain@linux-ympb>
%%%-------------------------------------------------------------------
@maxlapshin
maxlapshin / small_erlang.sh
Last active December 17, 2015 00:09
Build and clean small server erlang distribution without useless libraries
#!/bin/bash
[ -f /usr/bin/gcc ] || (apt-get update && apt-get install -y build-essential libncurses-dev libssl-dev chrpath)
#wget http://www.hpl.hp.com/research/linux/atomic_ops/download/libatomic_ops-7.2d.tar.gz
#tar zxf libatomic_ops-7.2d.tar.gz
#cd libatomic_ops-7.2/
#./configure --prefix=/opt/flussonic
#make install
#cd ..
@geekman
geekman / jffs2.py
Created October 26, 2015 16:30
JFFS2 scripts
#!/usr/bin/env python
#
# tool to parse JFFS2 images
# and more importantly, guess the erase block size
#
# 2015.10.19 darell tan
#
from struct import unpack
from argparse import ArgumentParser
@juliojsb
juliojsb / iptables-multicast.sh
Last active October 15, 2024 13:12
Allow multicast communications in iptables
Run the following:
iptables -A INPUT -m pkttype --pkt-type multicast -j ACCEPT
iptables -A FORWARD -m pkttype --pkt-type multicast -j ACCEPT
iptables -A OUTPUT -m pkttype --pkt-type multicast -j ACCEPT
Or:
iptables -A INPUT -s 224.0.0.0/4 -j ACCEPT
iptables -A FORWARD -s 224.0.0.0/4 -d 224.0.0.0/4 -j ACCEPT
@valyala
valyala / README.md
Last active November 4, 2025 00:19
Optimizing postgresql table for more than 100K inserts per second

Optimizing postgresql table for more than 100K inserts per second

  • Create UNLOGGED table. This reduces the amount of data written to persistent storage by up to 2x.
  • Set WITH (autovacuum_enabled=false) on the table. This saves CPU time and IO bandwidth on useless vacuuming of the table (since we never DELETE or UPDATE the table).
  • Insert rows with COPY FROM STDIN. This is the fastest possible approach to insert rows into table.
  • Minimize the number of indexes in the table, since they slow down inserts. Usually an index on time timestamp with time zone is enough.
  • Add synchronous_commit = off to postgresql.conf.
  • Use table inheritance for fast removal of old data:
@gabonator
gabonator / password.txt
Last active December 14, 2025 20:39
HiSilicon IP camera root passwords
Summary of passwords by sperglord8008s, updated November 1. 2020. For login try "root", "default", "defaul" or "root"
00000000
059AnkJ
4uvdzKqBkj.jg
7ujMko0admin
7ujMko0vizxv
123
1111
1234
@Brainiarc7
Brainiarc7 / VAAPI-hwaccel-encode-Linux-Ffmpeg&Libav-setup.md
Last active December 23, 2025 17:06
This gist contains instructions on setting up FFmpeg and Libav to use VAAPI-based hardware accelerated encoding (on supported platforms) for H.264 (and H.265 on supported hardware) video formats.

Using VAAPI's hardware accelerated video encoding on Linux with Intel's hardware on FFmpeg and libav

Hello, brethren :-)

As it turns out, the current version of FFmpeg (version 3.1 released earlier today) and libav (master branch) supports full H.264 and HEVC encode in VAAPI on supported hardware that works reliably well to be termed "production-ready".