[NTLUG:Discuss] port 22 "filtered"

[terry]

Thomas Cameron wrote:
>>I tried
>>service iptables stop
>>but have yet to try:
>>service ipchains stop
>>
>>Thanks for that tip.
>>
>>But, I may have been barking up the wrong tree all the time, I now see
>>that traceroute hangs after the 6th hop:
>>  6  sl-bb22-fw-8-0.sprintlink.net (144.232.19.213)  15.403 ms  16.487
>>ms  15.288                                             ms
>>  7  sl-bb27-fw-12-0.sprintlink.net (144.232.11.33)  16.866 ms  18.097
>>ms  17.195                                             ms
>>  8  sl-st20-dal-1-0.sprintlink.net (144.232.9.136)  23.167 ms  21.523
>>ms  15.170                                             ms
>>  9  sl-sbcint-3-0.sprintlink.net (144.228.250.110)  16.690 ms  17.306
>>ms  16.067                                             ms
>>10  bb2-p15-0.rcsntx.sbcglobal.net (151.164.191.230)  36.799 ms  23.611
>>ms  23.6                                            71 ms
>>11  dist1-vlan32.rcsntx.swbell.net (151.164.253.211)  21.589 ms  22.137
>>ms  17.2                                            24 ms
>>12  bras4-g12-0.rcsntx.sbcglobal.net (151.164.162.134)  24.020 ms
>>24.198 ms  24                                            .993 ms
>>13  * * *
>>14  * * *
>>15  * * *
>>etc. till it times out.
> 
> 
> OK, let me see if I have a firm understanding of the scenario:
> 
> This is a remote machine, right?  You are trying to ssh from somewhere
> (home, maybe) to a machine that is somewhere else (like at a datacenter
> somewhere).  You can't ping or ssh to that machine.

Yes to all above.

> 
> So how are you able to log in and check firewall rules and the like?

By physically going there, not very often though as it's about 50 miles 
or so. (It's my mother-in-law's PC, Arlington, Texas, her first Linux 
box, and although she's very happy with it and having no problems with 
it, I just need to help her with maintenance and configuration issues 
without having to drive 50 miles one way each time.)

> 
> Where did you run your nmap from?  Is it possible that there is a firewall

 From here on my [home] machine, here in Springtown, Texas where all the 
women are strong, the men are good looking, and all the children are 
above average.

As far as the question of a firewall, well not that I'm aware of, at 
least not on her end, aside from or accept for the above mentioned 
software firewall on the target machine.

There's a firewall on this end, ipcop.

> between your source and destination that you are not aware of?  If you ran

Well, if there IS a firewall other than the ones mentioned above, I'm 
"not aware of" it and it must be a new development as I was able to log 
onto this machine via ssh up until the 10th of this month, (five days 
ago).  It worked before, it's not working now.

I called SBCglobal about it and they say "nothing new since then" bit 
tested and discovered that traceroute finds problems along the way, and 
maybe that's it, and my running traceroute from here confirmed the fact 
that there are connectivity issues with some router someplace, but other 
than that, they are clueless, [as am I].

> 'service iptables stop' then 'service ipchains stop' will likely result in
> nothing but some kernel module error messages (iptables and ipchains are
> mutually exclusive).
> 
> Thomas
> 
> 
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> 

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