Empêcher la Chine de se connecter à mon serveur Google Compute Engine

11

Mon entreprise possède un serveur Google Compute Engine hébergé en Amérique du Nord. Nous recevons tellement d'adresses IP chinoises envoyant des demandes au port 11 que cela nous coûte de l'argent pour l'entrée. Notre pare-feu bloque déjà toutes les connexions vers la Chine car ils n'ont aucune entreprise ayant accès à nos applications.

Existe-t-il un moyen d'ignorer complètement ces connexions ou de les bloquer de manière à ne pas consommer de bande passante?

firewall  linux-networking  hacking  google-compute-engine  china 
— josh123a123
source
3
Cela va être sur Google, s'ils veulent soutenir cela. Vous ne pouvez rien contrôler de l'autre côté de vos ports d'entrée.
— Hyppy
Pourquoi le port 11 est-il ouvert?
— ceejayoz
1
Google vous facture le trafic vers les ports bloqués? Yeesh.
— ceejayoz
1
@TomTom Selon cloud.google.com/compute/pricing#network, le trafic entrant est gratuit. Tant que le port est fermé, aucune sortie ne doit être facturée.
— ceejayoz
2
@ josh123a123 avez-vous réussi à réduire ces coûts? J'ai le même problème
— dietbacon

Réponses:

7

Les pare-feu ont deux choix principaux lors de la réception de tentatives de connexion indésirables.

  1. REJETER - envoyer une réponse indiquant que le port / service / etc est fermé ou
    indisponible
  2. DROP - ne répond pas et laisse simplement tomber les paquets

Les mots REJECT / DROP ne sont pas standard ou utilisés dans tous les pare-feu, mais la différence entre les concepts derrière les deux actions possibles sera là. Vous voulez faire l'équivalent de DROP pour qu'il n'y ait pas de trafic sortant. Comme mentionné par d'autres, le trafic entrant n'encourt aucun frais.

— Brian
source
8

Le trafic d'entrée de Google Compute Engine est gratuit. Jetez un œil à la tarification du réseau GCE . Si vous avez été facturé pour le trafic entrant, vous pouvez contacter l'équipe de facturation Cloud pour clarifier et fixer les frais.

En ce qui concerne les demandes au port 11, dans la mesure où ce port est bloqué dans le pare-feu de votre réseau GCE, vos instances de VM doivent être sécurisées et les demandes ne doivent pas consommer la bande passante.

Je suis curieux de savoir comment vous surveillez ces demandes.

— Kamran
source
J'ai revu le projet de loi et les frais sont pour la sortie. Je rejetais le trafic, là où la bande passante sortante était consommée.
— josh123a123
6
Notez qu'il n'y a pas de mode / choix REJETER pour le pare-feu GCE. Le réseau recherche une règle de pare-feu qui autorise une connexion à la cible: dans l'affirmative, il l'envoie; sinon, il laisse simplement tomber le paquet sans en informer l'expéditeur. Pour plus d'informations, vous pouvez consulter la partie "Qui gère quoi" de cet article: cloud.google.com/compute/docs/networking#networkingdetails
— Kamran
2

Voici les commandes du shell cloud pour ajouter les règles de pare-feu:

gcloud compute --project=<project-name> firewall-rules create no-china-1 --description="Blocking these Chinese bots that want to rack up my network charges" --direction=INGRESS --priority=100 --network=default --action=DENY --rules=all --source-ranges=1.24.0.0/13,1.48.0.0/15,1.50.0.0/16,1.56.0.0/13,1.68.0.0/14,1.80.0.0/13,1.92.0.0/14,1.180.0.0/14,1.188.0.0/14,1.192.0.0/13,1.202.0.0/15,1.204.0.0/14,14.16.0.0/12,14.104.0.0/13,14.112.0.0/12,14.134.0.0/15,14.144.0.0/12,14.204.0.0/15,14.208.0.0/12,23.80.54.0/24,23.104.141.0/24,23.105.14.0/24,23.226.208.0/24,27.8.0.0/13,27.16.0.0/12,27.36.0.0/14,27.40.0.0/13,27.50.128.0/17,27.54.192.0/18,27.106.128.0/18,27.115.0.0/17,27.148.0.0/14,27.152.0.0/13,27.184.0.0/13,27.192.0.0/11,27.224.0.0/14,36.1.0.0/16,36.4.0.0/14,36.26.0.0/16,36.32.0.0/14,36.36.0.0/16,36.40.0.0/13,36.48.0.0/15,36.56.0.0/13,36.96.0.0/11,36.128.0.0/11,36.248.0.0/14,39.64.0.0/11,39.96.0.0/13,39.128.0.0/10,42.4.0.0/14,42.48.0.0/15,42.52.0.0/14,42.56.0.0/14,42.84.0.0/14,42.88.0.0/13,42.96.128.0/17,42.100.0.0/14,42.120.0.0/14,42.156.0.0/16,42.176.0.0/13,42.185.0.0/16,42.202.0.0/15,42.224.0.0/12,42.242.0.0/15,42.248.0.0/15,43.255.0.0/20,43.255.16.0/22,43.255.48.0/22,43.255.60.0/22,43.255.64.0/20,43.255.96.0/20,43.255.144.0/22,43.255.168.0/22,43.255.176.0/22,43.255.184.0/22,43.255.192.0/22,43.255.200.0/21,43.255.208.0/21,43.255.224.0/21,43.255.232.0/22,43.255.244.0/22,47.74.0.0/15,47.76.0.0/14,47.80.0.0/13,47.88.0.0/14,47.92.0.0/14,49.5.0.0/16,49.64.0.0/11,49.112.0.0/13,54.222.0.0/15,58.16.0.0/14,58.20.0.0/16,58.21.0.0/16,58.22.0.0/15,58.34.0.0/16,58.37.0.0/16,58.38.0.0/16,58.40.0.0/16,58.42.0.0/16,58.44.0.0/14,58.48.0.0/13,58.56.0.0/14,58.60.0.0/14,58.68.128.0/17,58.82.0.0/15,58.100.0.0/15,58.116.0.0/14,58.128.0.0/13,58.208.0.0/12,58.240.0.0/13,58.248.0.0/13,59.32.0.0/12,59.48.0.0/14,59.52.0.0/14,59.56.0.0/13,59.72.0.0/16,59.108.0.0/15,59.172.0.0/14,60.0.0.0/12,60.11.0.0/16,60.12.0.0/14,60.16.0.0/13,60.24.0.0/13,60.160.0.0/11,60.194.0.0/15,60.205.0.0/16,60.208.0.0/12,60.253.128.0/17,61.4.64.0/20,61.4.80.0/22,61.4.176.0/20,61.48.0.0/13,61.128.0.0/10,61.135.0.0/16,61.136.0.0/18,61.139.0.0/16,61.145.73.208/28,61.147.0.0/16,61.150.0.0/16,61.152.0.0/16,61.154.0.0/16,61.158.0.0/16,61.160.0.0/16,61.162.0.0/15,61.164.0.0/16,61.172.0.0/15,61.175.0.0/16,61.177.0.0/16,61.179.0.0/16,61.183.0.0/16,61.184.0.0/16,61.185.219.232/29,61.187.0.0/16,61.188.0.0/16,61.232.0.0/14,61.236.0.0/15,61.240.0.0/14,94.191.0.0/17

gcloud compute --project=<project-name> firewall-rules create no-china-2 --description=https://www.wizcrafts.net/chinese-blocklist.html --direction=INGRESS --priority=100 --network=default --action=DENY --rules=all --source-ranges=101.16.0.0/12,101.37.0.0/16,101.64.0.0/13,101.72.0.0/14,101.76.0.0/15,101.80.0.0/12,101.132.0.0/15,101.200.0.0/15,101.224.0.0/13,101.248.0.0/15,101.254.0.0/16,103.211.164.0/22,103.253.4.0/22,106.4.0.0/14,106.8.0.0/15,106.12.0.0/14,106.16.0.0/12,106.32.0.0/12,106.43.0.0/16,106.56.0.0/13,106.74.0.0/15,106.80.0.0/12,106.108.0.0/14,106.112.0.0/13,106.120.0.0/13,110.6.0.0/15,110.16.0.0/14,110.51.0.0/16,110.52.0.0/15,110.80.0.0/13,110.88.0.0/14,110.96.0.0/11,110.152.0.0/14,110.156.0.0/15,110.166.0.0/15,110.173.0.0/19,110.173.32.0/20,110.173.64.0/18,110.176.0.0/14,110.184.0.0/13,110.192.0.0/11,110.228.0.0/14,110.240.0.0/12,111.0.0.0/10,111.72.0.0/13,111.85.0.0/16,111.112.0.0/15,111.120.0.0/14,111.124.0.0/16,111.126.0.0/15,111.128.0.0/11,111.160.0.0/13,111.172.0.0/14,111.176.0.0/13,111.192.0.0/12,111.224.0.0/14,111.228.0.0/14,112.0.0.0/10,112.64.0.0/14,112.73.0.0/16,112.74.0.0/16,112.80.0.0/12,112.98.0.0/15,112.100.0.0/14,112.109.128.0/17,112.111.0.0/16,112.112.0.0/14,112.116.0.0/15,112.122.0.0/15,112.192.0.0/14,112.224.0.0/11,113.0.0.0/13,113.8.0.0/15,113.12.0.0/14,113.16.0.0/15,113.18.0.0/16,113.54.0.0/15,113.56.0.0/15,113.58.0.0/16,113.59.0.0/17,113.62.0.0/15,113.64.0.0/10,113.120.0.0/13,113.128.0.0/15,113.132.0.0/14,113.136.0.0/13,113.194.0.0/15,113.200.0.0/15,113.204.0.0/14,113.218.0.0/15,113.220.0.0/14,113.224.0.0/12,113.240.0.0/13,113.248.0.0/14,114.28.0.0/16,114.54.0.0/15,114.64.0.0/14,114.80.0.0/12,114.96.0.0/13,114.104.0.0/14,114.112.0.0/14,114.135.0.0/16,114.138.0.0/15,114.215.0.0/16,114.216.0.0/13,114.224.0.0/11,115.24.0.0/15,115.28.0.0/15,115.32.0.0/14,115.48.0.0/12,115.84.0.0/18,115.100.0.0/14,115.148.0.0/14,115.152.0.0/15,115.159.0.0/16,115.166.64.0/19,115.168.0.0/14,115.192.0.0/11,115.224.0.0/12,116.1.0.0/16,116.2.0.0/15,116.4.0.0/14,116.8.0.0/14,116.16.0.0/12,116.52.0.0/14,116.56.0.0/15,116.60.0.0/14,116.76.0.0/15,116.85.0.0/16,116.90.80.0/20,116.95.0.0/16,116.112.0.0/14,116.116.0.0/15,116.128.0.0/10,116.204.0.0/15,116.207.0.0/16,116.208.0.0/14,116.213.64.0/18,116.213.128.0/17,116.224.0.0/12,116.248.0.0/15,116.252.0.0/15,116.254.128.0/18,117.8.0.0/13,117.21.0.0/16,117.22.0.0/15,117.24.0.0/13,117.32.0.0/13,117.40.0.0/14,117.44.0.0/15,117.50.0.0/16,117.51.0.0/16,117.57.0.0/16,117.60.0.0/14,117.64.0.0/13,117.79.224.0/20,117.80.0.0/12,117.106.0.0/15,117.112.0.0/13,117.128.0.0/10,118.24.0.0/15,118.26.0.0/16,118.72.0.0/13,118.80.0.0/15,118.89.0.0/16,118.112.0.0/13,118.120.0.0/14,118.124.0.0/15,118.132.0.0/14,118.144.0.0/14,118.180.0.0/14,118.186.0.0/15,118.192.0.0/15,118.194.0.0/16,118.213.0.0/16,118.244.0.0/16,118.248.0.0/13,119.0.0.0/13,119.8.0.0/16,119.10.0.0/17,119.18.192.0/20,119.23.0.0/16,119.28.0.0/15,119.32.0.0/14,119.36.0.0/16,119.39.0.0/16,119.44.0.0/16,119.48.0.0/13,119.57.0.0/16,119.60.0.0/15,119.62.0.0/16,119.84.0.0/14,119.88.0.0/14,119.96.0.0/13,119.108.0.0/15,119.112.0.0/13,119.120.0.0/13,119.128.0.0/12,119.144.0.0/14,119.162.0.0/15,119.164.0.0/14,119.176.0.0/12,119.233.0.0/16,119.248.0.0/14,120.0.0.0/12,120.24.0.0/14,120.30.0.0/15

gcloud compute --project=<project-name> firewall-rules create no-china-3 --description="2 and 3 are both made up of line 2 in the source rules" --direction=INGRESS --priority=100 --network=default --action=DENY --rules=all --source-ranges=120.32.0.0/13,120.40.0.0/14,120.68.0.0/14,120.76.0.0/14,120.80.0.0/13,120.92.0.0/16,120.192.0.0/10,121.0.16.0/20,121.4.0.0/15,121.8.0.0/13,121.16.0.0/12,121.32.0.0/14,121.40.0.0/14,121.52.208.0/20,121.52.224.0/19,121.56.0.0/15,121.60.0.0/14,121.68.0.0/14,121.76.0.0/15,121.100.128.0/17,121.196.0.0/14,121.201.0.0/16,121.204.0.0/14,121.224.0.0/12,122.4.0.0/14,122.8.0.0/16,122.10.128.0/17,122.51.128.0/17,122.64.0.0/11,122.96.0.0/15,122.119.0.0/16,122.136.0.0/13,122.156.0.0/14,122.188.0.0/14,122.192.0.0/14,122.198.0.0/16,122.200.64.0/18,122.224.0.0/12,122.240.0.0/13,123.4.0.0/14,123.8.0.0/13,123.52.0.0/14,123.56.0.0/14,123.64.0.0/11,123.97.128.0/17,123.100.0.0/19,123.112.0.0/12,123.128.0.0/13,123.138.0.0/15,123.144.0.0/14,123.148.0.0/15,123.150.0.0/15,123.152.0.0/13,123.160.0.0/14,123.164.0.0/14,123.172.0.0/15,123.178.0.0/15,123.180.0.0/14,123.184.0.0/13,123.196.0.0/15,123.206.0.0/15,123.232.0.0/14,123.244.0.0/14,123.249.0.0/16,124.42.0.0/16,124.64.0.0/15,124.66.0.0/17,124.67.0.0/16,124.72.0.0/13,124.88.0.0/15,124.92.0.0/14,124.112.0.0/15,124.114.0.0/15,124.117.0.0/16,124.118.0.0/15,124.126.0.0/15,124.128.0.0/13,124.152.0.0/16,124.160.0.0/13,124.192.0.0/15,124.200.0.0/13,124.224.0.0/16,124.226.0.0/15,124.228.0.0/14,124.234.0.0/15,124.236.0.0/14,124.240.0.0/17,124.240.128.0/18,124.248.0.0/17,125.32.0.0/14,125.36.0.0/14,125.40.0.0/13,125.64.0.0/12,125.79.0.0/16,125.80.0.0/13,125.88.0.0/13,125.104.0.0/13,125.112.0.0/12,125.210.0.0/15,125.216.0.0/13,132.232.0.0/16,134.175.0.0/16,139.129.0.0/16,139.170.0.0/16,139.189.0.0/16,139.199.0.0/16,139.206.0.0/16,139.208.0.0/13,139.217.0.0/16,139.224.0.0/16,139.226.0.0/15,140.143.0.0/16,140.206.0.0/15,140.224.0.0/16,140.237.0.0/16,140.240.0.0/16,140.246.0.0/16,140.249.0.0/16,140.255.0.0/16,142.4.117.0/30,144.0.0.0/16,144.12.0.0/16,144.52.0.0/16,144.123.0.0/16,144.255.0.0/16,150.109.0.0/16,150.138.0.0/15,150.242.152.0/21,150.242.160.0/21,150.242.168.0/22,153.0.0.0/16,153.99.0.0/16,159.226.0.0/16,162.209.168.0/24,171.8.0.0/13,171.34.0.0/15,171.36.0.0/14,171.40.0.0/13,171.80.0.0/14,171.88.0.0/13,171.104.0.0/13,171.112.0.0/14,171.116.0.0/14,171.120.0.0/13,171.208.0.0/12,175.0.0.0/12,175.16.0.0/13,175.24.0.0/14,175.30.0.0/15,175.42.0.0/15,175.44.0.0/16,175.46.0.0/15,175.48.0.0/12,175.64.0.0/11,175.102.0.0/16,175.106.128.0/17,175.146.0.0/15,175.148.0.0/14,175.152.0.0/14,175.160.0.0/12,175.178.0.0/16,175.184.128.0/18,175.185.0.0/16,175.186.0.0/15,175.188.0.0/14,180.76.0.0/16,180.95.128.0/17,180.96.0.0/11,180.136.0.0/13,180.152.0.0/13,180.160.0.0/12,180.208.0.0/15,180.212.0.0/15,182.18.0.0/17,182.32.0.0/12,182.50.112.0/20,182.61.0.0/16,182.84.0.0/14,182.88.0.0/14,182.96.0.0/12,182.112.0.0/12,182.128.0.0/12,182.144.0.0/13,182.200.0.0/13,182.240.0.0/13,183.0.0.0/10,183.64.0.0/13,183.92.0.0/14,183.128.0.0/11,183.160.0.0/12,183.184.0.0/13,183.192.0.0/10,192.34.109.224/28,198.2.203.64/28,198.2.212.160/28,198.15.171.64/26

gcloud compute --project=<project-name> firewall-rules create no-china-4 --description="rule 4 is line 3 in source file, as of 2019-09-18" --direction=INGRESS --priority=100 --network=default --action=DENY --rules=all --source-ranges=202.43.144.0/22,202.46.32.0/19,202.65.96.0/20,202.66.0.0/16,202.75.208.0/20,202.96.0.0/12,202.111.160.0/19,202.112.0.0/14,202.117.0.0/16,202.127.112.0/20,202.165.176.0/20,202.196.80.0/20,203.69.0.0/16,203.81.16.0/20,203.86.0.0/18,203.86.64.0/19,203.93.0.0/16,203.169.160.0/19,203.171.224.0/20,203.195.160.0/23,210.5.0.0/19,210.12.0.0/16,210.14.128.0/19,210.21.0.0/16,210.22.0.0/16,210.32.0.0/14,210.51.0.0/16,210.52.0.0/15,210.75.0.0/16,210.77.0.0/16,210.79.64.0/18,210.192.96.0/19,211.76.96.0/20,211.78.208.0/20,211.80.0.0/13,211.86.144.0/20,211.90.0.0/15,211.92.0.0/14,211.96.0.0/13,211.136.0.0/13,211.144.0.0/12,211.160.0.0/13,211.233.70.0/24,212.64.0.0/17,218.0.0.0/11,218.56.0.0/13,218.64.0.0/11,218.84.0.0/14,218.88.0.0/13,218.96.0.0/14,218.102.0.0/16,218.104.0.0/14,218.108.0.0/15,218.194.80.0/20,218.200.0.0/13,218.240.0.0/13,218.249.0.0/16,219.128.0.0/11,219.154.0.0/15,219.223.192.0/18,219.232.0.0/16,219.234.80.0/20,219.235.0.0/16,219.238.0.0/15,220.112.0.0/16,220.154.0.0/15,220.160.0.0/11,220.181.0.0/16,220.191.0.0/16,220.192.0.0/12,220.228.70.0/24,220.242.0.0/15,220.248.0.0/14,220.250.0.0/19,220.252.0.0/16,221.0.0.0/12,221.122.0.0/15,221.130.0.0/15,221.136.0.0/15,221.172.0.0/14,221.176.0.0/13,221.192.0.0/14,221.196.0.0/15,221.198.0.0/16,221.199.0.0/17,221.200.0.0/14,221.204.0.0/15,221.206.0.0/16,221.207.0.0/16,221.208.0.0/12,221.212.0.0/15,221.214.0.0/15,221.216.0.0/13,221.224.0.0/13,221.228.0.0/14,221.232.0.0/13,222.32.0.0/11,222.64.0.0/12,222.80.0.0/12,222.128.0.0/14,222.132.0.0/14,222.136.0.0/13,222.160.0.0/14,222.168.0.0/13,222.172.222.0/24,222.176.0.0/13,222.184.0.0/13,222.200.0.0/16,222.208.0.0/13,222.216.0.0/14,222.220.0.0/15,222.222.0.0/15,222.240.0.0/13,222.249.0.0/16,223.4.0.0/14,223.8.0.0/13,223.64.0.0/11,223.96.0.0/12,223.112.0.0/14,223.144.0.0/12,223.198.0.0/15,223.214.0.0/15,223.223.176.0/20,223.223.192.0/20,223.255.0.0/17,223.240.0.0/13

N'oubliez pas de remplacer <project-name>par votre nom de projet réel.

Il doit être divisé entre plusieurs règles car GCP vous limite à 256 plages IP par règle de pare-feu. Source de plage IP ici .

— forresthopkinsa
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