[Sunhelp] I'think is a problem DNS (But I don't know)???

[Jarrett m Carver]

The key here is that one is inside the firewall the other outside.  You may
need to Telnet to  a firewall
telnet gateway and then out to the site. We have Application firewalls (among
others) at our site, and to
telnet to an outside site you would...

telnet 123.45.67.xxx  <- this is the telnet gateway. It is a machine with two
network adapters, one to the inside network and one to the outside world. The
machine is set-up to route connections from the inside out, but not outside
in. This is usually done by addinig routes and setting up netperm tables.

you would then get the following promt:

tn-gw> connect outside.site.com

After it connects it would appear and work like a normal telnet session.

Your Fw administrator  can tell you if they allow telneting to outside sites
through your firewall, and how to do it.  Of course , all of this info really
depends on the type of firewall set-up they are running.

Hope this helps.

McCrone Paul J GS-12 HQ AFWA/XOGM wrote:

> Ok, I've got another wierd one.....
>
> On this one machine (call the machne "yorktown"), I can do this:
>
> telnet 130.6.223.xxx (which is inside a firewall)
> ...... and get in.
>
> Example:
> ________________________
> yorktown{user}2: telnet 130.6.223.xxx
> Trying 130.6.223.xxx...
> Connected to 130.6.223.xxx.
> Escape character is '^]'.
>
>
> SunOS x.x
>
> login:
> _________________________________________
>
> But I can't do this.............
> telnet 209.180.110.200 (which is outside a firewall).
>
> What I get is:
> _________________________________________
> yorktown{user}1: telnet 209.180.110.200
> Trying 209.180.110.200...
> telnet: Unable to connect to remote host: Network is unreachable
> yorktown{user}2:
> _________________________________________
>
> The ethernet is fine.
>
> Ideas?
>
> Regards,
> ===========================================
> Paul  J. McCrone, GS-12, Chief Forecaster
> HQ Air Force Weather Agency (AFWA) Office Code: XOGM
> Email: Paul.McCrone at afwa.af.mil <mailto:Paul.McCrone at afwa.af.mil>
> Phone: (402) 294-2821
> ===========================================
>
>
>
>
>  -----Original Message-----
> From: Wolfgang Engelien [mailto:wolfgang at hanazono.med.cornell.edu]
> Sent: Tuesday, July 13, 1999 9:50 AM
> To: sunhelp at ohno.mrbill.net
> Subject: Re: [Sunhelp] I'think is a problem DNS (But I don't know)???
>
> Hi Fernando,
>
> checked DNS with nslookup?
>
> checked /etc/resolv.conf?
>
> checked /etc/nsswitch.conf?
>
> At 12:02 PM 7/13/99 +0200, you wrote:
>
> >>>>
>
> Hi friends,
>
> I've a problem (no in Houston), when I do a PING to some address, for
> example ping 204.178.107.237 everything is all rigth, but If I try to put:
> ping www.yahoo.com, it told me that: ping : unknow host www.yahoo.com an
> then with anyaddress. I need install netscape, but like my computer doesn't
> recognize URL's, I cann't use it.
>
> My computer is a netra 4000 (SUN), with Solaris 2.5.1, and I thing the
> routes are Ok.
>
> Thank's a lot in advance for some help.
>
> Fernando (my e-mail: alana at gaia.es)
>
> --
>
> ----------------------------------------------------------------
>
> Fernando Alana Compa GAIA
>
> Servicios Informaticos C/ Camino Portuetxe, 14
>
> Email: alana at gaia.es Edificio ibaeta 1
>
> 20018, San Sebastian
>
> Spain
>
> Tel. +34 943 31 66 66
>
> Fax. +34 943 31 10 66
>
> ----------------------------------------------------------------
>
> <<<<
>
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Jarrett Carver                            DIA OSIS System Administrator
Re:AFcarjm at dia.osis.gov                   CC:admin at dia.osis.gov

"The opinions expressed herein are not necessarily those of my employer,
 not necessarily mine, and probably not necessary."

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