jhrcz

#!/bin/bash

cat /cgroup/blkio/libvirt/qemu/blkio.throttle.read_bps_device
cat /cgroup/blkio/libvirt/qemu/blkio.throttle.write_bps_device
cat /cgroup/blkio/libvirt/qemu/*/blkio.throttle.read_bps_device
cat /cgroup/blkio/libvirt/qemu/*/blkio.throttle.write_bps_device

# 10MBps
#BPSLIMIT=10485760

vishvananda

#!/bin/bash

if [ "$4" == "" ]; then
    echo "usage: $0 <local_ip> <remote_ip> <new_local_ip> <new_remote_ip>"
    echo "creates an ipsec tunnel between two machines"
    exit 1
fi

SRC="$1"; shift
DST="$1"; shift

pweil-

os_http_be.map and os_sni_passthrough.map are both just empty files

Lukasa

import os
import socket
import struct

# These constants map to constants in the Linux kernel. This is a crappy
# way to get at them, but it'll do for now.
RTMGRP_LINK = 1

NLMSG_NOOP = 1
NLMSG_ERROR = 2

bruienne

DMG/PKG Linux notes

Mounting DMGs w/ HFS partitions:

http://linuxforums.org.uk/index.php?topic=1072.0

Tools needed:

apt-get install hfsplus hfsutils hfsprogs dmg2img

philwinder

--[[
Provides custom authorization for nginx.
See the `nginx_authorize_by_lua.conf` for the Nginx config. This lua file is referenced in the config
See testWebserverAccess.sh for unit tests.

To Run nginx (make sure you have the lua, config and htpasswd file):
$ /usr/local/openresty/nginx/sbin/nginx -c /etc/nginx/conf/nginx_authorize_by_lua.conf

Logs are available at: /usr/local/openresty/nginx/logs/lua.log
To write to the log:

valyala

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:

lmmendes

Instructions to DUMP localy a Elasticache Redis database

Connect to Redis CLI

$ redis-cli

Enable the current redis as a slave for the master node

oinopion

-- Create a group
CREATE ROLE readaccess;

-- Grant access to existing tables
GRANT USAGE ON SCHEMA public TO readaccess;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess;

-- Grant access to future tables
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess;

jessfraz

High-Level Security Profile Generator

(originally from my proposal on moby/moby#17142 (comment) but generic)

The profile would generate artificats of an apparmor profile and seccomp filters.

Obviously doesn't have to be toml since that's super hipster :p

Assumptions

• no one is going to sit and write out all the syscalls/capabilities their app needs
• automatic profiling would be super cool but like aa-genprof it is never