I had to reinstall a UW711 server on a local network. The terminal emulator
we use requires telnet. The machine is refusing connections. Inetd seems to
be running. Should I start up telnetd as a separate daemon? I don't recall
what to look for to turn this on. Thanks for any help...

Ralph McElmurry wrote:

> I had to reinstall a UW711 server on a local network. The terminal emulator
> we use requires telnet. The machine is refusing connections. Inetd seems to
> be running. Should I start up telnetd as a separate daemon? I don't recall
> what to look for to turn this on. Thanks for any help...
>
>

Start with some basics:

1) Are you 100% sure you assigned the same IP address AND netmask to the
NIC? Did you also check the netmask and assigned IP on the PC's you are
trying to connect with?

2) Can you ping and FTP from one of the client PC's? Important - can you
STILL ping the address WITH the UW server UN-plugged from the network
(oh-oh dup IP number on the network)?

3) Is there a gateway or sub-net bridging involved?

4) Does your Telnet client use the machine name or the actual IP address
of the UW server? (try the actual address if it uses a name)

5) Do you have the DNS servers and the resolution ordering id'ed in
/etc/resolv.conf?

6) Are you sure the DHCP server does not assign IP addresses in a range
that might include the UW server's address?

7) Try using a crossover cable to directly connect a PC and the server's
NIC together. If Telnet then works, you have routing/firewall problems
in your network.

8) What do you see in the syslog after an attempt to telnet?

9) Any chance telnet had been commented out of the services file?

--
----------------------------------------------------
Pat Welch, UBB Computer Services, a WCS Affiliate
SCO Authorized Partner
Unix/Linux/Windows/Hardware Sales/Support
(209) 745-1401 Cell: (209) 251-9120
E-mail: patubb@inreach.com
----------------------------------------------------

Yes, I installed the same setup as before with the same IP address and node
name. Pings all work and I have a UW213 server on the network
that can NFS mount the drives on this machine. Ping fails if unplugged. No
sub nets right now. All the machines have public static IP addresses. Telnet
fails with error message "connection refused."whether nodename or IP address
is used. There are no entries in host.allow or hosts.deny. I am using the
/etc/hosts files as lookup and do not have a DNS or DHCP server running. All
this is the same as before the boot problem forced the reload. Telnet is OK
in the services file and the syslog does not have any entries about
this...only bootup stuff.
I use the ISP's for DNS out on the 'net. I found inetd is not starting on
boot and starting it manually with sacadm does not seem to help. I'm at a
loss right now. Thanks.

I may be interested in the BackupEdge product to avoid this again especially
on the other server which is the production machine.

"Pat Welch" <patubb@inreach.com> wrote in message
news:xOOdnUTnkuBSuNTfRVn-rQ@comcast.com...
> Ralph McElmurry wrote:
>
> > I had to reinstall a UW711 server on a local network. The terminal
emulator
> > we use requires telnet. The machine is refusing connections. Inetd seems
to
> > be running. Should I start up telnetd as a separate daemon? I don't
recall
> > what to look for to turn this on. Thanks for any help...
> >

> >
>
> Start with some basics:
>
> 1) Are you 100% sure you assigned the same IP address AND netmask to the
> NIC? Did you also check the netmask and assigned IP on the PC's you are
> trying to connect with?
>
>Can you ping and FTP from one of the client PC's? Important - can you
> STILL ping the address WITH the UW server UN-plugged from the network
> (oh-oh dup IP number on the network)?
>
> 3) Is there a gateway or sub-net bridging involved?
>
> 4) Does your Telnet client use the machine name or the actual IP address
> of the UW server? (try the actual address if it uses a name)
>
> 5) Do you have the DNS servers and the resolution ordering id'ed in
> /etc/resolv.conf?
>
> 6) Are you sure the DHCP server does not assign IP addresses in a range
> that might include the UW server's address?
>
> 7) Try using a crossover cable to directly connect a PC and the server's
> NIC together. If Telnet then works, you have routing/firewall problems
> in your network.
>
> 8) What do you see in the syslog after an attempt to telnet?
>
> 9) Any chance telnet had been commented out of the services file?
>
> --
> ----------------------------------------------------
> Pat Welch, UBB Computer Services, a WCS Affiliate
> SCO Authorized Partner
> Unix/Linux/Windows/Hardware Sales/Support
> (209) 745-1401 Cell: (209) 251-9120
> E-mail: patubb@inreach.com
> ----------------------------------------------------

Ralph McElmurry wrote:
> Yes, I installed the same setup as before with the same IP address and node
> name. Pings all work and I have a UW213 server on the network
> that can NFS mount the drives on this machine. Ping fails if unplugged. No
> sub nets right now. All the machines have public static IP addresses. Telnet
> fails with error message "connection refused."whether nodename or IP address
> is used. There are no entries in host.allow or hosts.deny. I am using the
> /etc/hosts files as lookup and do not have a DNS or DHCP server running. All
> this is the same as before the boot problem forced the reload. Telnet is OK
> in the services file and the syslog does not have any entries about
> this...only bootup stuff.
> I use the ISP's for DNS out on the 'net. I found inetd is not starting on
> boot and starting it manually with sacadm does not seem to help. I'm at a
> loss right now. Thanks.
>
> I may be interested in the BackupEdge product to avoid this again especially
> on the other server which is the production machine.
>
> "Pat Welch" <patubb@inreach.com> wrote in message
> news:xOOdnUTnkuBSuNTfRVn-rQ@comcast.com...
>
>>Ralph McElmurry wrote:
>>
>>
>>>I had to reinstall a UW711 server on a local network. The terminal
>
> emulator
>
>>>we use requires telnet. The machine is refusing connections. Inetd seems
>
> to
>
>>>be running. Should I start up telnetd as a separate daemon? I don't
>
> recall
>
>>>what to look for to turn this on. Thanks for any help...
>>>
>
>
>>Start with some basics:
>>
>>1) Are you 100% sure you assigned the same IP address AND netmask to the
>>NIC? Did you also check the netmask and assigned IP on the PC's you are
>>trying to connect with?
>>
>>Can you ping and FTP from one of the client PC's? Important - can you
>>STILL ping the address WITH the UW server UN-plugged from the network
>>(oh-oh dup IP number on the network)?
>>
>>3) Is there a gateway or sub-net bridging involved?
>>
>>4) Does your Telnet client use the machine name or the actual IP address
>>of the UW server? (try the actual address if it uses a name)
>>
>>5) Do you have the DNS servers and the resolution ordering id'ed in
>>/etc/resolv.conf?
>>
>>6) Are you sure the DHCP server does not assign IP addresses in a range
>>that might include the UW server's address?
>>
>>7) Try using a crossover cable to directly connect a PC and the server's
>>NIC together. If Telnet then works, you have routing/firewall problems
>>in your network.
>>
>>8) What do you see in the syslog after an attempt to telnet?
>>
>>9) Any chance telnet had been commented out of the services file?

Did you try the direct connect using a crossover cable from a PC?

That should establish once and for all if the problem is local to the
UW7 server or a possible internal routing error on your network - for
example telnet requests may actually be going out to the public internet
and finding a machine with a dup name or IP publicly exposed that does
not allow telnet.

What is traceroute showing you?

--
----------------------------------------------------
Pat Welch, UBB Computer Services, a WCS Affiliate
SCO Authorized Partner
Unix/Linux/Windows/Hardware Sales/Support
(209) 745-1401 Cell: (209) 251-9120
E-mail: patubb@inreach.com
----------------------------------------------------