Nader-abdi

#!/usr/bin/env bash

wget --no-check-certificate https://github.com/teddysun/across/raw/master/bbr.sh && chmod +x bbr.sh && ./bbr.sh


## Add sysctl config
echo 'fs.file-max = 51200
net.core.rmem_max = 67108864
net.core.wmem_max = 67108864
net.core.netdev_max_backlog = 250000

denji

What's Cool

• Encrypted root partition
  • AES-256 bit cipher
  • Argon2id variant for PBKDF
  • Sha3-512 bit hash
• rEFInd bootloader
  • With dreary theme
  • Optimal Settings (optimized for aesthetics, and boot time)
• Boot into backups thanks to refind-btrfs

Th3Whit3Wolf

What's Cool

• Encrypted root partition
  • AES-256 bit cipher
  • Argon2id variant for PBKDF
  • Sha3-512 bit hash
• rEFInd bootloader
  • With dreary theme
  • Optimal Settings (optimized for aesthetics, and boot time)
• Boot into backups thanks to refind-btrfs

akar-0

#!/bin/bash

# dochroot.sh: set up and enter chroot environment for a Gentoo install
#
# Copyright 2019 Stephen Cavilia <sac@atomicradi.us>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

ctompkinson

set -o pipefail
set -o errtrace
set -o nounset
set -o errexit
set -a

# Scratch mount is the device which will be mounted on /mnt
# and generally used for logs, core dumps etc.
if ! $(mount | grep -q /mnt) ; then
    # Detected NVME drives

phaneesh

/dev/sdb1 /data/hdp01  xfs  defaults,noatime,nodiratime,nobarrier  1 2
/dev/sdc1 /data/hdp02  xfs  defaults,noatime,nodiratime,nobarrier  1 2

reillysiemens

Signing VirtualBox Kernel Modules

These are the steps I followed enable VirtualBox on my laptop without disabling UEFI Secure Boot. They're nearly identical to the process described on [Øyvind Stegard's blog][blog], save for a few key details. The images here are borrowed from the [Systemtap UEFI Secure Boot Wiki][systemtap].

1. Install the VirtualBox package (this might be different for your platform).

   src='https://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo'

rayhassan

IO Performance:
--------------

NCQ - Native Cmd Queueing - SATA II - 32 cmds

TCQ - Tagged Cmd Queuing - SCSI 2 - 216 cmds possible (64 cmds supported by most disk queues)

- Reordering of cmds when requests for sectors spaced far from one another.

- attempts to reduce disk seek time and rotation latency by optimising order in which sectors are found.

antirez

# LVDB - LLOOGG Memory DB
# Copyriht (C) 2009 Salvatore Sanfilippo <antirez@gmail.com>
# All Rights Reserved

# TODO
# - cron with cleanup of timedout clients, automatic dump
# - the dump should use array startsearch to write it line by line
#   and may just use gets to read element by element and load the whole state.
# - 'help','stopserver','saveandstopserver','save','load','reset','keys' commands.
# - ttl with milliseconds resolution 'ttl a 1000'. Check ttl in dump!

sergey-dryabzhinsky

###
# Proxmox or other server kernel params cheap tune and secure.
# Try it if you have heavy load on server - network or memory / disk.
# No harm assumed but keep your eyes open.
#
# @updated: 2020-02-06 - more params used, adjust some params values, more comments on params
#

### NETWORK ###