I can't Telnet to Red Hat machine from Windows

Hi!

I am having a problem with a connection between my RedHat Linux 9.x
and
Windows 2000.

They both can ping each other. The RedHat can ftp to the Windows 2000.

However, when I telnet or ftp from Windows to the RedHat, it said:
D:\>telnet xx.xx.xx.xx
Connecting To xx.xx.xx.xx...Could not open a connection to host:
Connect failed

Can you give me some idea about this? Anything I can check to solve
this problem?

I tried to stop linux firewall by this foloiwng commands, but still it
is same problem, telnet not working

service iptables stop


Thanks.

On 24 May 2004 07:12:11 -0700, vasanta <(E-Mail Removed)> wrote:
> However, when I telnet or ftp from Windows to the RedHat, it said:
> D:\>telnet xx.xx.xx.xx
> Connecting To xx.xx.xx.xx...Could not open a connection to host:
> Connect failed

Does your RedHat run a telnetd daemon and an ftp daemon?

What does 'netstat -napt' say when executed (as root) on your RedHat?

Wkr,
Sven Vermeulen

--
Bent Hindrup Andersen, Danish MEP, about the Software Patent Directive:
The approach of the Commission and Council in this directive is shocking.
They are making full use of all the possibilities of evading democracy that
the current Community Law provides. <http://lwn.net/Articles/84009/>

vasanta wrote:

> Hi!
>
> I am having a problem with a connection between my RedHat Linux 9.x
> and
> Windows 2000.
>
> They both can ping each other. The RedHat can ftp to the Windows 2000.
>
> However, when I telnet or ftp from Windows to the RedHat, it said:
> D:\>telnet xx.xx.xx.xx
> Connecting To xx.xx.xx.xx...Could not open a connection to host:
> Connect failed
>
> Can you give me some idea about this? Anything I can check to solve
> this problem?
>
> I tried to stop linux firewall by this foloiwng commands, but still it
> is same problem, telnet not working
>
> service iptables stop
>
>
> Thanks.

Check the firewall settings on Red Hat. I think Red Hat 8 and 9 enable Firewall by default (unless
you disabled it during installation) and this will prevent SSH, HTTP, etc access from outside
localhost. Run iptables -L and see if you have restrictions... and if so run iptables -F and see if
you can connect then.

If this works, you'll need to disable or reconfigure your iptables or the Red Hat firewall or next
reboot it'll reset-up the iptables filters.

Hope this helps...

Alex.

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In comp.os.linux.networking vasanta <(E-Mail Removed)> suggested:
> Hi!

> I am having a problem with a connection between my RedHat Linux 9.x
> and
> Windows 2000.

Fine, telnet is an old insecure protocol we don't use anymore,
use ssh (secure shell) instead, usually it should be running
already, try 'ps aux | grep sshd' from a terminal. There are
various (free) ssh clients, putty/winscp for M$ come to my mind,
try a google search, download/install one of those and use that
to login.

Good luck

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Michael Heiming (GPG-Key ID: 0xEDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
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In comp.os.linux.networking Sven Vermeulen <(E-Mail Removed)> suggested:
> On 24 May 2004 07:12:11 -0700, vasanta <(E-Mail Removed)> wrote:
>> However, when I telnet or ftp from Windows to the RedHat, it said:
[..]

> What does 'netstat -napt' say when executed (as root) on your RedHat?

netstat works the same as user for this purpose, unless you want
to reset the stats, which does of course only work as root.

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Michael Heiming (GPG-Key ID: 0xEDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
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look in /etc/xinted.d/ for a file called telnet or telnetd and edit that
file... towards the bottom there should be a line that says disabled=yes,
change this to no and then restart the xinted process by typing
/etc/init.d/xinted restart then try telnetting, also verify that
netstat -pant shows the telnet daemon running on port 23. or 0.0.0.0:23

Hope this helps


"Michael Heiming" <michael+(E-Mail Removed)> wrote in message
news:svs9o1-(E-Mail Removed)...
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> Hash: SHA1
> NotDashEscaped: You need GnuPG to verify this message
>
> In comp.os.linux.networking vasanta <(E-Mail Removed)> suggested:
> > Hi!
>
> > I am having a problem with a connection between my RedHat Linux 9.x
> > and
> > Windows 2000.
>
> Fine, telnet is an old insecure protocol we don't use anymore,
> use ssh (secure shell) instead, usually it should be running
> already, try 'ps aux | grep sshd' from a terminal. There are
> various (free) ssh clients, putty/winscp for M$ come to my mind,
> try a google search, download/install one of those and use that
> to login.
>
> Good luck
>
> --
> Michael Heiming (GPG-Key ID: 0xEDD27B94)
> mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
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> nNDDldmGtPP+wI3xu/50kp0=
> =yczX
> -----END PGP SIGNATURE-----

On Mon, 24 May 2004 18:57:00 -0000, Michael Heiming <michael+(E-Mail Removed)> wrote:
> netstat works the same as user for this purpose, unless you want
> to reset the stats, which does of course only work as root.

If you run it as root you'll see the names of the processes as well as the
process IDs. When run as user, you would just receive a process ID from which
you cannot tell if it really is the daemon that is running or some other weird
process.

Wkr,
Sven Vermeulen

--
Bent Hindrup Andersen, Danish MEP, about the Software Patent Directive:
The approach of the Commission and Council in this directive is shocking.
They are making full use of all the possibilities of evading democracy that
the current Community Law provides. <http://lwn.net/Articles/84009/>

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In comp.os.linux.networking Sven Vermeulen <(E-Mail Removed)> suggested:
> On Mon, 24 May 2004 18:57:00 -0000, Michael Heiming <michael+(E-Mail Removed)> wrote:
>> netstat works the same as user for this purpose, unless you want
>> to reset the stats, which does of course only work as root.

> If you run it as root you'll see the names of the processes as well as the
> process IDs. When run as user, you would just receive a process ID from which
> you cannot tell if it really is the daemon that is running or some other weird
> process.

Yep, double-checked, never mentioned that, you'll see only the
names of PID running under your own UID.

$ netstat -V
net-tools 1.60
netstat 1.42 (2001-04-15)

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Thanks guys, actually my telnet-server*.rpm package was not installed,
I installed that and then added "telnet" file in /etc/xinetd.d. Then
started telnet service.