[Info-vax] TCPWare SMTP Setup

[Simon Clubley]

On 2020-12-28, Grant Taylor <gtaylor at tnetconsulting.net> wrote:
> On 12/28/20 11:43 AM, Bill Gunshannon wrote:
>> Actually, I would expect pretty much everything to fail at PING today.
>
> Why do you say that?
>
> I'd say that ping works > 80% of the time for me.
>
> It may be rate limited or only allow specific ICMP message types 
> through, but -- at least for me -- echo request and echo reply are more 
> reliable today than than they were 20 years ago.
>
> Filtering ICMP has a number of negatives that cause problems for other 
> things.
>

For security reasons, some people tend to disable ping access to
their servers from external network sources.

If ping fails, try traceroute. Even if you don't get to the target
server, you at least get to verify that the local part of your network
setup is working.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.