Global Entry cards have radio frequency identification chips, which enable their use at Secure Electronic Network for Travelers Rapid Inspection (SENTRI) and NEXUS travel lanes when entering the United States at the land borders. We accept Global Entry cards for lawful U.S. After you log in, click on the “Activate Membership Card” button under the Program Membership(s) section. To activate your card, log into your Trusted Traveler Program (TPP) account. lawful permanent residents and Mexican nationals. That way your validator node will try to peer with your provided sentry nodes only.Global Entry cards are issued to Global Entry members who are U.S. Or: lighthouse bn -libp2p-addresses "/ip4/10.0.3.84/tcp/9000/p2p/16Uiu2HAsDfeLV6FLXhh1D5MeTSxADCPfBCHRh4VrhcHzeSpxGQRF. So, either take the LibP2P Multi-Address format or the Ethereum Node Record (ENR) from the three SEN1, SEN2, and SEN3 and pass it either as bootnode or static peer to your validator node, e.g.: lighthouse bn -boot-nodes "enr:-LK4QHP9pudQUPud4VfLoRHBytpK1dE_mQYa-BCVJGsR4jHDO1uzmfkrXGTmovAn9RukI52icX3s0fHfhT-Fsinr1B8Dh2F0dG5ldHOIAAAAAAAAAACEZXRoMpD2d10HAAABE_gmlkgnY0gmlwhFzIHRCJc2VjcDI1NmsxoQKfVWe8YoASdFmIlVxo4Lh6je6jGW-tXOJWTh-6ZuW4ooN0Y3CCIyiDdWRwgiMo. One or more comma-delimited multiaddrs to manually connect to a libp2p peer without an ENR. One or more comma-delimited base64-encoded ENR's to bootstrap the p2p network. The following configuration options come in handy: -boot-nodes The validator node VAL0 will need some custom networking configuration. The sentry nodes SEN1, SEN2, and SEN3 will be able to access public bootnodes of the beacon chain they want to connect to, there is not much action required. Now, the last step is to wire the clients together. If you change the discovery port, make sure to update the UFW rules. Now just configure the Lighthouse beacon chain node and validator client according to the official documentation. Now, to also allow outgoing connections, for the same subnets, do: ufw allow out from any to 10.0.0.0/8Įnable the networking rule set with ufw enable. This allows the local subnets 10.0.0.0/8 and 192.168.0.0/16 to access your lighthouse client. To only allow local network connections to your Lighthouse validator, open port 9000 for the following subnets: ufw allow from 10.0.0.0/8 to any port 9000 We also deny all outgoing traffic to avoid peering with other clients on the internet. We deny any incoming traffic and throttle SSH access. Ufw default deny outgoing # deny outgoing connections (to avoid the internet) ufw default deny incoming # deny incoming connections (server hardening) For extended security, you can also add physical network logic, e.g., only wiring the validator directly to the sentries without direct internet access (make sure you come up with some SSH logic here). For simplicity, we will just use UFW rules here, this even works on cloud providers given your machines are all in the same local network / region. The validator node will be shielded from the internet. The sentry node will be available both on the open internet and the local area network for connections to the other sentry nodes and also the validator node. Now just configure the Lighthouse beacon chain node according to the official documentation. Enable the networking rule set with ufw enable. Ufw allow 9000 # open the Lighthouse discovery portĪdd other rules at will, e.g., if you setup monitoring dashboards. Ufw limit 22 # limit SSH requests, change this to your SSH port Ufw default allow outgoing # allow outgoing connections (p2p requires that) The sentry node networking setup is quite generic, we disallow incoming connections except for a limited SSH access and the Lighthouse discovery port. I would encourage to manage networking through a firewall, i.e., UFW, but you can also add other layers at will, i.e., physical network topology.Īs validator client and beacon nodes we use Lighthouse which configures it's p2p port on :9000 by default. So, you have a validator node VAL0 and the sentry nodes SEN1, SEN2, and SEN3 according to your single layer sentry node setup above.
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