Ubuntu

Тормозит Youtube

Изменить настройки resolv.conf

domain wolf-a.ru
search wolf-a.ru
nameserver 8.8.8.8
nameserver 192.168.0.1

Limit network speed

Limit: sudo tc qdisk add dev eth0 root tbf rate 1mbit burst 10kb latency 70ms

Check: sudo tc -s -d qdisc show dev eth0

Disable: sudo tc qdisc del dev eth0 root

Отключение защит от SPECTRE MELTDOWN и т.д.

https://linuxmint.com.ru/viewtopic.php?p=74099&sid=0430a33528a3f952dad4f1fc64433a15#p74099

В /etc/default/grub прописать:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nopti nospectre_v1 nospectre_v2 nospec_store_bypass_disable noibrs noibpb l1tf=off no_stf_barrier"

и выполнить sudo update-grub

EASY RSA (from FreeBSD)

Создание сертификата:

. ./vars
./build-req iphone
./sign-req iphone

openvpn ccd routes

python scrypt converting from 127.0.0.1/32 to 127.0.0.1 255.255.255.255:

#!/usr/bin/env python3
import sys
import ipaddress
import re

for line in sys.stdin:
    match = re.search(r'(\d+\.\d+\.\d+\.\d+)/(\d+)', line)
    if match:
        ip = match.group(1)
        cidr = int(match.group(2))
        net = ipaddress.ip_network(f"{ip}/{cidr}", strict=False)
        mask = str(net.netmask)
        line = re.sub(r'/\d+', f' {mask}', line)
    sys.stdout.write(line)

Скрипт конвертирования:

cat goog.json | jq '.prefixes[] | .ipv4Prefix' | grep -v null | awk -F '"' '{ print "push \"route " $2 "\"" }' > ipv4_pre
cat ipv4_pre | python3 converter.py > ipv4
cat goog.json | jq '.prefixes[] | .ipv6Prefix' | grep -v null | awk -F '"' '{ print "push \"route " $2 "\"" }' > ipv6

синтакс json:

{
  "syncToken": "1760234683896",
  "creationTime": "2025-10-11T19:04:43.896706",
  "prefixes": [{
    "ipv4Prefix": "8.8.4.0/24"
  }, {
    "ipv4Prefix": "8.8.8.0/24"
  }, {
    "ipv6Prefix": "2606:40::/32"
  }]
}

goog subnets: https://www.gstatic.com/ipranges/goog.json