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[AWIPS #WOM-137582]: CAVE refused connection to server question

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  • Subject: [AWIPS #WOM-137582]: CAVE refused connection to server question
  • Date: Mon, 08 Aug 2022 13:53:10 -0600
Hi Pete,

> Upon successfully installing EDEX and CAVE on a new RHEL 7 server, EDEX is up 
> and 
> running fine (per edex status).
> 
> For this ticket - assume the local server is called dummyserver-new.
>
> When we point CAVE to the local server where EDEX is running we get "Connect 
> to 
> dummyserver-new:9581 [dummyserver-new/10.232.10.254] failed: Connection 
> refused. 
> Hit retry limit, aborting connection"

Just to clarify, your machine running CAVE is not the same machine that's 
running 
EDEX (ie, not the dummyserver-new), correct?


> We do not get this issue when pointing it to ucar edex
>
> In a terminal window as user awips, the hostname command returns 
> dummyserver-new
>
> Similarly regutil command shows
> /hostname : dummyserver-new
> /dummyserver-new : dummysererver-new
>
> Is there something we need to configure specific to that port 9581, are we 
> missing
> something in regutil, or is there perhaps something else obvious we are 
> missing
> that is preventing CAVE from connecting to the running local EDEX server?

Since I'm assuming you're using a separate machine running CAVE to connect to 
your
dummyserver-new EDEX, you'll need to make sure ports 9581 and 9852 are open to 
the
public on your dummy server.
We use iptables to set up the traffic/networking security and you can see an 
example
of what our security looks like here:
http://unidata.github.io/awips2/install/install-edex/#3-configure-iptables

The lines of interest are:

-A INPUT -m state --state NEW -m tcp -p tcp --dport 9581 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 9582 -j ACCEPT

If those ports are not open "to the world" then I think that's what's causing 
your
CAVE connection to fail.
Let me know if that helps?


--Shay Carter

She/Her/Hers
AWIPS Software Engineer
UCAR - Unidata

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Ticket Details
===================
Ticket ID: WOM-137582
Department: Support AWIPS
Priority: Normal
Status: Open
===================
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