How to add nodes which does not provide ip in my bitcoin-cli ?

[btctousd81]

i know i can add nodes by using command

Code:

bitcoin-cli addnode <ip:port> add

but there are some services which provide domain names i.e.

ref: http://bitcoinrelaynetwork.org/

e.g. node
public.us-west.relay.mattcorallo.com

how can i add such node ?

i have tried adding it like this

Code:

bitcoin-cli addnode public.us-west.relay.mattcorallo.com add

but, how can i make sure, i am connected to it ?

i tried doing

Code:

bitcoin-cli getpeerinfo | grep public.us-west.relay.mattcorallo.com

and

Code:

bitcoin-cli getpeerinfo | grep mattcorallo

but i dont see it being added.

can anyone help me with this ?

thanks for your time.

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[Kogs]

Try to ping the address and use the IP address for the addnode.

Code:

ping public.us-west.relay.mattcorallo.com

Result
PING v4.rn-sea1.fibre.bitcoinrelaynetwork.org (107.191.119.43) 56(84) bytes of data.


Port 8333 is open for this IP, so it looks like that a full node is listening there.

[aleksej996]

Try to ping the address and use the IP address for the addnode.

Code:

ping public.us-west.relay.mattcorallo.com

Result
PING v4.rn-sea1.fibre.bitcoinrelaynetwork.org (107.191.119.43) 56(84) bytes of data.


Port 8333 is open for this IP, so it looks like that a full node is listening there.

Ping is a good and simple way to get an IP. Sometimes, rarely, ping doesn't work and then you can use all kinds of whois websites to tell you IP of that address. If you have Linux you can also simply run "dig public.us-west.relay.mattcorallo.com" and it will give you the DNS record.

[btctousd81]

Try to ping the address and use the IP address for the addnode.

Code:

ping public.us-west.relay.mattcorallo.com

Result
PING v4.rn-sea1.fibre.bitcoinrelaynetwork.org (107.191.119.43) 56(84) bytes of data.


Port 8333 is open for this IP, so it looks like that a full node is listening there.

i tried ping and got the same ip., but when i checked for open port it says the port is closed.

i tried bitnodes.21.co and http://www.yougetsignal.com/tools/open-ports/ to check if port is open.

thanks.
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edit1 :

i did

Code:

bitcoin-cli addnode 107.191.119.43 add

and later when i tried

Code:

bitcoin-cli getpeerinfo | grep 107.191.119.43

i dont see it being added.


i even did

Code:

cat ~/.bitcoin/debug.log | grep 107.191.119.43

but no entries of it in debug either., so imho the port

Code:

8333 

isnt open.


so back to square one.

[Kogs]

just checked with nmap.

Port 8333 is available, but nmap say it's filtered.

Code:

PORT     STATE    SERVICE
22/tcp   open     ssh
8333/tcp filtered unknown

So I'm not sure if it's possible to connect directly to this node.

[btctousd81]

just checked with nmap.

Port 8333 is available, but nmap say it's filtered.

Code:

PORT     STATE    SERVICE
22/tcp   open     ssh
8333/tcp filtered unknown

So I'm not sure if it's possible to connect directly to this node.

i dont recall where i read,

but i read something about dns seeds. maybe in bitcoin souorce code., ill have to check there.
at the initial start of bitcoind when there are no known nodes available., bitcoind gets its nodes list from predefined nodes ips and domain names , from source code.
i have to look in to it.