[arm-allstar] Firewall notes

James Hause hausejd at gmail.com
Thu May 17 04:57:25 EST 2018


Thanks for all the information.  This is probably a dumb question, but
rather ask then mess things up.
Is there a how-to on changing existing password?  My node was set up before
the changes made for longer passwords.
I assume I would follow the same steps for setting the password for an
initial image set, but want to be sure.

On Thu, May 17, 2018 at 1:08 AM, "Doug Crompton via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> Let me reinforce what Dave has said about firewalls. We get off on these
> rather technical discussions about things from time to time and forget that
> many or possibly most of our users do not have the knowledge to discern
> what is good information and what is not. The discussion of firewalls comes
> up from time to time and again I want to emphasize that most of you do NOT
> need a firewall.
>
> Many users come from Windows or possibly from the Debian fiasco about a
> year ago when systems were compromised due to an OS screw-up. Our hamvoip
> systems have only the ports open that you would normally use - ssh, iax,
> and http. I do not want users to become scared that their system are a time
> bomb waiting for hacking. I will repeat what Dave said - Implementing a
> firewall and opening these ports adds nothing to protection as they are the
> only ports open to begin with.
>
> First of all if you are nat'ed behind a router and you don't port forward
> port 222 (ssh) you are safe. If you do port forward ssh and you use a good
> password - 10-12 characters consisting of mixed upper/lower case, numerics
> and special characters you are safe. Many users use simple passwords and
> while that is probably OK if you don't allow Internet access to ssh it
> definitely would not be otherwise.
>
> So if you are using a stock hamvoip system and you have not opened
> additional ports and you use a good ssh password then you have nothing to
> worry about. Fear seems to be the order of the day any more. Relax, play
> Allsar, use common sense and stop worrying about things you don't need to
> worry about.
>
>
> *73 Doug*
>
> *WA3DSP*
>
> *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
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