- 注意,BBR 等基于延迟判断发送窗口的拥塞控制算法可能与 AQM 发生冲突!!!对于使用 BBR 的设备,fq 可能还是最好的选择。
Cake 使用主动队列管理(AQM)技术保持全局同步,可以控制延迟,有效利用宽带。同时它还可以保证每个主机,每个流公平的分享宽带。
Cake 与 kernel 4.19 并入主线,因此使用 Cake 需要 kernel 和 iproute2 版本大于 4.19。如何确认 kernel 和 iproute2 版本,以及如何升级本文不做详细说明。
# Source | |
# Mastering Object-Oriented Python - Second Edition by Steven F. Lott Published by Packt Publishing, 2019 | |
# https://learning.oreilly.com/library/view/mastering-object-oriented-python/9781789531367/c34be237-5ccd-4775-a0b0-ec1f7652f7bc.xhtml | |
# | |
from pathlib import Path | |
# write JSON files: | |
with Path("temp.json").open("w", encoding="UTF-8") as target: | |
json.dump(travel3, target, default=blog_j2_encode) |
:ubuntu-autoinstall | |
echo Starting Ubuntu ${ubuntu-version} ${archl} autoinstaller for ${initiator-iqn} | |
sanhook ${base-iscsi}:${hostname}.boot.ubuntu || sleep 1 | |
#sanhook ${base-iscsi}:${hostname}.boot.ubuntu && set ubuntu-cc-iscsi storage: { layout: { name: lvm }, config: [{type: disk, path: ${base-iscsi}:${hostname}.boot.ubuntu }] } || sleep 1 | |
#sanhook ${base-iscsi}:${hostname}.boot.ubuntu && set ubuntu-iscsi ISCSI_INITIATOR=${initiator-iqn} ISCSI_TARGET_NAME=${base-iqn}:${hostname}.boot.ubuntu ISCSI_TARGET_IP=${iscsi-server} ISCSI_TARGET_PORT=3260 || sleep 1 | |
# https://medium.com/@tlhakhan/ubuntu-server-20-04-autoinstall-2e5f772b655a | |
# https://ubuntu.com/server/docs/install/autoinstall | |
# https://github.com/canonical/cloud-init/blob/master/doc/examples/kernel-cmdline.txt | |
# https://matt.olan.me/raspberry-pi-iscsi-root-on-ubuntu-20-04/ | |
# https://askubuntu.com/questions/1235723/automated-20-04-server-installation-using-pxe-and-live-server-image |
#cloud-config | |
autoinstall: | |
version: 1 | |
early-commands: | |
- snap set system proxy.http="http://192.168.122.1:12345" | |
- snap set system proxy.https="http://192.168.122.1:12345" | |
locale: en_US | |
keyboard: | |
layout: en | |
variant: us |
#!/bin/bash | |
# print an anchor subset (r, n or A) | |
function pfprint() { | |
# avoid trusting PATH and . | |
/usr/bin/sudo pfctl -a "$2" -s"$1" 2>/dev/null | |
} |
ssh() { | |
# grep -w: match command names such as "tmux-2.1" or "tmux: server" | |
if ps -p $$ -o ppid= \ | |
| xargs -i ps -p {} -o comm= \ | |
| grep -qw tmux; then | |
# Note: Options without parameter were hardcoded, | |
# in order to distinguish an option's parameter from the destination. | |
# | |
# s/[[:space:]]*\(\( | spaces before options | |
# \(-[46AaCfGgKkMNnqsTtVvXxYy]\)\| | option without parameter |
google镜像仓库
#!/bin/sh | |
set -e | |
echo === configure openwrt version 21.02.0 === | |
# override shadowsocks server config | |
SERVER_NAME=lightsail-tokyo | |
METHOD=xchacha20-ietf-poly1305 | |
HOST= |
# For recent versions of Ubuntu: | |
- https://www.pugetsystems.com/labs/hpc/ubuntu-22-04-server-autoinstall-iso/ | |
# Docs: | |
- https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls | |
- https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls/ConfigReference | |
- https://cloudinit.readthedocs.io/en/latest/topics/datasources/nocloud.html | |
- https://discourse.ubuntu.com/t/please-test-autoinstalls-for-20-04/15250/53 | |
# Download ISO Installer: |
#!/bin/bash | |
CYAN="$(tput bold; tput setaf 6)" | |
RESET="$(tput sgr0)" | |
clear | |
if command -v python3 > /dev/null 2>&1; then | |
if [ $(python3 -c "print('ye')") = "ye" ]; then | |
clear |