Jeff Haferman haferman

Running a Validator

This section explains how to get a Validator node running on the network, using the same docker image used for running a full node.

Validators help secure the Celo network by participating in Celo’s Proof of Stake protocol. Validators are organized into Validator Groups, analogous to parties in representative democracies. A Validator Group is essentially an ordered list of Validators.

Just as anyone in a democracy can create their own political party, or seek to get selected to represent a party in an election, any Celo user can create a Validator group and add themselves to it, or set up a potential Validator and work to get an existing Validator group to include them.

While other Validator Groups will exist on the Celo Networks, the fastest way to get up and running with a Validator will be to register a Validator Group, register a Validator, and add that Validator to your Validator Group. The addresses used to register Validator Groups and Validators must be unique, which will req

	#if defined(CONFIG_INFINIBAND) \|\| defined(CONFIG_INFINIBAND_MODULE)

	#include "IBVBuffer.h"
	#include "IBVSocket.h"

	bool IBVBuffer_init(IBVBuffer* buffer, IBVCommContext* ctx, size_t bufLen)
	{
	unsigned count = (bufLen + IBV_FRAGMENT_SIZE - 1) / IBV_FRAGMENT_SIZE;
	unsigned i;

	cd ~/.near
	curl ifconfig.me; echo
	ls
	grep public node_key.json validator_key.json
	sudo grep validators /var/log/syslog \| tail -2 \| ccze -A
	on main: sudo systemctl stop neard
	on backup: cp node_key.json.main node_key.json; cp validator_key.json.main validator_key.json
	sudo systemctl restart neard
	sudo grep validators /var/log/syslog \| tail -2 \| ccze -A

	1. create DNS "A" record (link ip address with FQDN)
	2. make sure port 443 is open
	3. sudo apt install nginx
	4. stop attestation-service (so we can get certificate on default port 80)
	5. sudo systemctl start nginx
	6. sudo systemctl enable nginx
	7. https://certbot.eff.org/instructions?ws=nginx&os=ubuntubionic
	(sudo snap install --classic certbot; sudo ln -s /snap/bin/certbot /usr/bin/certbot; sudo certbot --nginx)
	8. sudo vi /etc/nginx/sites-available/default (doc root change to /dev/null so that http://ipaddress will fail)
	9. attestation.config should point to new port (8080)

	mkdir empty_dir
	rsync -a --delete empty_dir/ yourdirectory/