Unable to connect

Unable to connect

[Barry]

Hi, just trying to recover from a major hardware failure here. I managed
to recover most of my configuration files, but a couple were lost.

I am using:
Athalon 1.3
512 Mb RAM
30Gb Disc
Mandrake 9.0rc3 Kernel 2.4.19
libaxax25-0.0.9 
ax25-apps-0.0.6
ax25-tools-0.0.8
node-0.3.0
clx 5.04

All compiled and installed OK. Problem comes whenever I try to connect,
say to VE3NAV-1 (the node), VE3NAV-3 (clx) etc. I get the "connected"
message, immediately followed by a disconnection. The result is the same
whether I connect via radio, or a local loopback from the keyboard.

As far as I can see/remember all files are there, and correctly
configured, but no connection. I know there is little to go on here, but
does this ring a bell with anyone. I am sure there will be an
embarrassingly simple solution.

73 Barry
ve3nav/va3wi


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Re: Unable to connect

[M Taylor]

On Sun, Sep 22, 2002 at 10:32:27AM -0400, Barry wrote:
> Hi, just trying to recover from a major hardware failure here. I managed
> to recover most of my configuration files, but a couple were lost.
> 
> I am using:
> Mandrake 9.0rc3 Kernel 2.4.19
> libaxax25-0.0.9 

A minor point, but is not the cause of your problems, libax25 current 
version is 0.0.10 <http://sourceforge.net/projects/ax25/>.

> All compiled and installed OK. Problem comes whenever I try to connect,
> say to VE3NAV-1 (the node), VE3NAV-3 (clx) etc. I get the "connected"
> message, immediately followed by a disconnection. The result is the same
> whether I connect via radio, or a local loopback from the keyboard.

Because you are having problems via the loopback interface (localhost),
I believe the issue is with your Linux system, not an amateur radio
specific problem.

Is ipchains or iptables/netfilter being used for a firewall?
Is tcpwrapper (/etc/hosts.allow /etc/hosts.deny) an issue?
Are you using inetd or xinetd? 

Do you see the TCP ports you are trying to use when you do a
	netstat --ip -a | grep LISTEN
?

Other useful tools may be 'lsof' and 'nmap -sS localhost' 
'nmap -sT localhost'.

Can you run /usr/sbin/node as a normal user (ignore error message
about unable to open/write to log file)?

Did you try the same with your inetd/xinetd command entries for clx?
(something like /usr/local/clx/bin/clxd)

> As far as I can see/remember all files are there, and correctly
> configured, but no connection. I know there is little to go on here, but
> does this ring a bell with anyone. I am sure there will be an
> embarrassingly simple solution.

Simple but embarrassing are still easier to fix. :-)

-ve1mct

Re: Unable to connect

[Craig Small]

On Sun, Sep 22, 2002 at 10:32:27AM -0400, Barry wrote:
> Hi, just trying to recover from a major hardware failure here. I managed
> to recover most of my configuration files, but a couple were lost.
> 
> I am using:
> Athalon 1.3
> 512 Mb RAM
> 30Gb Disc
> Mandrake 9.0rc3 Kernel 2.4.19
> libaxax25-0.0.9 
> ax25-apps-0.0.6
> ax25-tools-0.0.8
> node-0.3.0
> clx 5.04
> 
> All compiled and installed OK. Problem comes whenever I try to connect,
> say to VE3NAV-1 (the node), VE3NAV-3 (clx) etc. I get the "connected"
> message, immediately followed by a disconnection. The result is the same
> whether I connect via radio, or a local loopback from the keyboard.

Do those two connect via ax25?  It sounds very similar to a problem you
get with inetd that does the listening then attempts to start the child
program (like , say ftpd), fails then bumps you off.

In that case check those programs run directly.  

  - Craig
-- 
Craig Small VK2XLZ  GnuPG:1C1B D893 1418 2AF4 45EE  95CB C76C E5AC 12CA DFA5
Eye-Net Consulting http://www.eye-net.com.au/        <csmall@eye-net.com.au>
MIEEE <csmall@ieee.org>                 Debian developer <csmall@debian.org>