[Info-vax] ssh, variant ssh ports, and DNS

[Stephen Hoffman]

On 2019-07-05 21:34:04 +0000, Grant Taylor said:

> On 7/5/19 3:02 PM, Stephen Hoffman wrote:
> 
>> https://gist.github.com/taylor/1372925
> 
> Oh wow.  That looks like it's trying to be a wrapper for the ssh command.

There are various other examples around.

Port knocking is another approach sometimes used:
https://wiki.archlinux.org/index.php/Port_knocking

I've found a mid-grade firewall with an embedded VPN server to 
generally be a better approach than exposing an ssh server whether 
default or non-default port, though.  Prices on those devices keep 
dropping.

Among the commercial offerings, I've worked with the ZyXEL ZYWALL USG 
series, among others.  Various other vendors and models are available.

Open-source firewalls or host-based VPN servers with iVPN, OpenVPN, 
SoftEther, etc., configured and running can also be options, depending 
on requirements and budgets and related.

OpenVMS doesn't have an embedded L2TP/IPSec VPN server, though various 
other server operating systems do offer that.  (What info Process has 
available for MultiNet doesn't indicate support for L2TP/IPsec, for 
those using that client.)

And if you're inclined:
https://nullprogram.com/blog/2019/03/22/


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