[Info-vax] invisible vax

[Stephen Hoffman]

On 2016-02-17 08:41:57 +0000, nierveze at radio-astronomie.com said:

> hello again,
> maybe I did not explain well:
> first everything works well ,excepted lynx,I'll explain below,so we 
> could stay here and say ok,but there is a 'mystery':the adsl 'box' is a 
> router with an local network and an internet connection to that 
> network,until now all the machines that were connected to the local 
> network(192.168.*.*)were visible from outside (from my isp)

192.168.0.0/16 is a private block and those hosts should never be 
visible outside of whatever device is doing NAT within this 
configuration.

It's possible that one or both of the ISPs are using private blocks, 
but those should still not be visible outside of whatever NAT the ISP 
is using.   Double NAT is problematic.

Confirm that your DNS server settings, gateway router address and 
subnet all match, and that you're on unique IP addresses within the 
same subnet, on working and not-working systems.

> now all are visible (pcs under windows95/98 and above,linux 
> machines,even the nintendo games of my child,but not the vax.I have 
> changed nothing to the vax.
> I think it does not come from vms,but from difference in the software 
> of the box,and it has no consequence on the functionnality of 
> everything.

Trust, but verify.

> For lynx :the problem is not in unzipping a downloaded file,it happens 
> when trying to access to remote site,not a local page(it eliminates 
> vms/lynx),I tested with a simple page on my site where I was sure there 
> is no zip file to download and I still get the error message (unable to 
> decompress file).

Post the exact command used, the web site, and the versions of unzip 
and Lynx.   Describing in text is necessary and useful, but the exact 
commands used, the product versions of Lynx and unzip, and the exact 
error messages are not optional information when debugging these sorts 
of problems.

> I'll try another version of lynx.

Which version do you have?

> Another test I did :lynx is ok with all sites on linux.

Is it the same Lynx?   Is it the same unzip?   (Not sure if Lynx embeds 
unzip, or somehow calls it.)

> This also does not surely come from the vax/vms/ucx/lynx because it 
> happened suddenly when I moved from satellite internet to adsl internet 
> .

The word "surely" is a bad word, when debugging.   Verify.   As for 
details and debugging, the exact versions, the exact commands, and the 
exact error messages.  Those are nice things when debugging.

> This also is not very important,my vax is not mainly used to go to the 
> www,it is used to do astronomic calculations,www is just fun, even if 
> with a vt340 is is a little bit rough....but I am so happy with my 
> vax:no pain,no cry,no reformatting,no reinstallation,in a word no 
> problem.

It's a VAX.   It's a hassle.  Not the least of which because it expects 
much more to administrate.   You're on V7.2 (down-revision, even for 
VAX).   You will have increasing connectivity problems as more and more 
web sites switch to TLS, and particularly to secure TLS.

> My wife reinstalls her pc every two ot three months :-)))

Buy a Mac.


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