[vox-tech] telnet daemon doesn't work

Brian Lavender brian at brie.com
Sun Apr 4 23:02:09 PDT 2010


Wierd thing is that if I run a simple echo server on that port, it
works.


On Sun, Apr 04, 2010 at 10:55:22PM -0700, Brian Lavender wrote:
> I am testing NTOP!!! ;-)
> 
> This host is a Xen VM called xen6. It's hypervisor's hostname is
> "small". The default rules for xen6 are accept.  But the wierd thing is
> that netstat -an seems to report tcp6. Could telnetd just be listening
> to ipv6?
> 
> I can ssh to xen6, just not telnet to it. I can telnet from xen6 to
> localhost. 
> 
> brian
> 
> Active Internet connections (servers and established)
> Proto Recv-Q Send-Q Local Address           Foreign Address State      
> tcp        0      0 0.0.0.0:22              0.0.0.0:* LISTEN     
> tcp        0      0 127.0.0.1:6011          0.0.0.0:* LISTEN     
> tcp        0      0 192.168.1.106:22        192.168.1.54:55227 ESTABLISHED
> tcp        0      0 192.168.1.106:22        192.168.1.54:54178 ESTABLISHED
> tcp6       0      0 :::22                   :::* LISTEN     
> tcp6       0      0 :::23                   :::* LISTEN     
> tcp6       0      0 ::1:6011                :::* LISTEN 
> 
> root at xen6:/home/brian# iptables -L
> Chain INPUT (policy ACCEPT)
> target     prot opt source               destination         
> 
> Chain FORWARD (policy ACCEPT)
> target     prot opt source               destination         
> 
> Chain OUTPUT (policy ACCEPT)
> target     prot opt source               destination
> 
> $ cat /etc/inetd.conf
> #:STANDARD: These are standard services.
> telnet  stream  tcp     nowait  root    /usr/sbin/telnetd       telnetd
> 
> small:~# iptables -L
> Chain INPUT (policy ACCEPT)
> target     prot opt source               destination         
> 
> Chain FORWARD (policy ACCEPT)
> target     prot opt source               destination         
> ACCEPT     all  --  xen6.brie.com        anywhere            PHYSDEV
> match --physdev-in vif8.0 
> ACCEPT     udp  --  anywhere             anywhere            PHYSDEV
> match --physdev-in vif8.0 udp spt:bootpc dpt:bootps 
> 
> Chain OUTPUT (policy ACCEPT)
> target     prot opt source               destination
> 
> 
> On Sun, Apr 04, 2010 at 10:34:53PM -0700, Matthew Holland wrote:
> > Assuming that the daemon is running, it's probably being rightly
> > blocked by a firewall.  Why do you want to do this?
> > 
> > On Sun, Apr 4, 2010 at 10:16 PM, Brian Lavender <brian at brie.com> wrote:
> > > I installed telnetd on my Debian unstable and it I can't seem to telnet
> > > to it. Any clues?
> > >
> > > brian
> > > --
> > > Brian Lavender
> > > http://www.brie.com/brian/
> > >
> > > "There are two ways of constructing a software design. One way is to
> > > make it so simple that there are obviously no deficiencies. And the other
> > > way is to make it so complicated that there are no obvious deficiencies."
> > >
> > > Professor C. A. R. Hoare
> > > The 1980 Turing award lecture
> > > _______________________________________________
> > > vox-tech mailing list
> > > vox-tech at lists.lugod.org
> > > http://lists.lugod.org/mailman/listinfo/vox-tech
> > >
> > _______________________________________________
> > vox-tech mailing list
> > vox-tech at lists.lugod.org
> > http://lists.lugod.org/mailman/listinfo/vox-tech
> 
> -- 
> Brian Lavender
> http://www.brie.com/brian/
> 
> "There are two ways of constructing a software design. One way is to
> make it so simple that there are obviously no deficiencies. And the other
> way is to make it so complicated that there are no obvious deficiencies."
> 
> Professor C. A. R. Hoare
> The 1980 Turing award lecture
> _______________________________________________
> vox-tech mailing list
> vox-tech at lists.lugod.org
> http://lists.lugod.org/mailman/listinfo/vox-tech

-- 
Brian Lavender
http://www.brie.com/brian/

"There are two ways of constructing a software design. One way is to
make it so simple that there are obviously no deficiencies. And the other
way is to make it so complicated that there are no obvious deficiencies."

Professor C. A. R. Hoare
The 1980 Turing award lecture


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