Hi Neel,
I could get point where the problem lied ie. one of DNSs in ERNET domain.
Not all of them have the reverse mapping for our IPs but ONLY ONE. So when
I changed the order of DNSs to above one it worked - I guess!!
Anyway Thanks a lot.
Anand
On Wed, 19 Apr 2000 [EMAIL PROTECTED] wrote:
>
> Hi Anand,
>
> Check whether the server you have set up as DNS is actually the
> authoritative server for your domain and is accessible from outside (eg
> through your firewall), and is registered with the next higher level. Also
> check whether you're using two sets of IP addresses for your local network
> and the Internet (then you will need two sets of lookup files)
>
> Indraneel
>
> /*****************************************************************.
> # Indraneel Majumdar # E-mail: [EMAIL PROTECTED] #
> # 4/2 Arobindo Avenue, # URL: http://scorpius.iwarp.com #
> # Durgapur, India 713204 # Tel: +91-343-563571 #
> `*****************************************************************/
>
> On Tue, 18 Apr 2000, S.Anand Kr wrote:
>
> > Hi,
> >
> > I have got a Linux based DNS setup for our network. Using NSLOOKUP,
> > setting my domain server as server and entering one of our servers' IP I am
> > getting the name of my server back and vice-versa. This shows that reverse
> > IP mapping is correctly configured.
> >
> > But when I am trying to ftp "ftp.tislabs.com" getting the following mesg.:
> >
> > " $ ftp ftp.tislabs.com
> > Connected to portal.gw.tislabs.com
> > 520 - This FTP server required the ability to perform reverse DNS
> > lookups on all addresses connecting to it.
> > We cannot perform this on the currect connection.
> > 421 Service not available, remote server has colosed connection.
> > "
> > Kindly rectify where the problem can be.
> >
> > With regards,
> > Anand
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > Anand Kr Sudabattula, Programmer
> > Department of Computer Sc. & Engg.
> > Motilal Nehru Regional Engineering College, Allahabad-211004, India
> > E-mail: [EMAIL PROTECTED]
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-net" in
> > the body of a message to [EMAIL PROTECTED]
> >
>
>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Anand Kr Sudabattula, Programmer
Department of Computer Sc. & Engg.
Motilal Nehru Regional Engineering College, Allahabad-211004, India
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E-mail: [EMAIL PROTECTED], [EMAIL PROTECTED]
Phone: +99-532-642861 (Off.) ; 641520/641820/642596 Ext. 418 (Res.)
Fax: +99-532-642436, 640777
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