[Cialug] Remote Access

Mon Aug 14 14:03:17 CDT 2006

a. Do you have any unusual filters or firewall rules on the suse box that
would block anything from the outside it's not expecting, yet still allow
traffic from your local subnet?

b. The port isn't really (or fully) getting forwarded. Some routers have
bugs in software/firmware, some can't handle doing too many of their
functions/features at the same time, and some are worded so you think
they'll behave differently than they really do. Could you do a small port 
scan your outside IP from the outside (yourself, or one of those sites 
that'll do it) to see what's really open from the outside?

Don

>I can SSH in to the SuSe box from Win on my local network but not from 
>outside. I
>  have my router set to forward port 23. I cannot figrue out what else it 
> could be. Does anyone have any ideas.
>
> Brandon Griffis <brandongriffis at gmail.com> wrote:
>  Sorry if this has already been answered.  I scanned through the emails 
> and didn't see a response.
>
> Is sshd (the secure shell server daemon) running on the server you are 
> trying to connect to?
>
> To check you can run the command:
>
> ps -A | grep sshd
>
> You should get an output similar to this:
>
> myuser at mymachine ~ $ ps -A | grep sshd
> 6869 ?        00:00:00 sshd
> 24780 ?        00:00:00 sshd
> 24786 ?        00:00:00 sshd
> myuser at mymachine ~ $
>
> If you do please try to connect to the server using SSH on your server's 
> LAN.
>
> If you can do that then we know it's a problem with the external 
> connection (port forwarding, IP address...)
>
> If you can't then we know it's an installation/configuration problem.
>
> Thanks,
> Gamble
>
>
>  On 8/9/06, carl-olsen at mchsi.com <carl-olsen at mchsi.com > wrote:
> I disable the firewall in my Linux network interface settings, since I 
> have a firewall on my router with port 22 forwarded to my Linux machine.
>  -------------- Original message from "Justin Richeson" < 
> jrnosee at gmail.com>: -------------- 
>
>
> I think you may be having the same problem as me.  I can't get into my 
> linux box either on any protocol from an off-network pc.  Is there a built 
> in firewall in linux that needs to be setup before attempting to connect?
>
>
>
>
>  On 8/9/06, David Stout < ragbrai65 at yahoo.com> wrote:
>
>      I have tried both version 1 & 2. there is a box for Remote command is 
> there a command I should enter here? And On preferred encryption algorithm 
> I have the following options.
>  3DES, Blowfish, and DES. There is also a check box for Imitate SSH MAC 
> bug in commercial <= v2.3.x should this be checked.
>
>
> carl-olsen at mchsi.com wrote:
>
>
>
>
>
> There are a lot of different settings in PuTTY.  Have you tried various 
> settings?  What protocol version are you using?
>
>
>  -------------- Original message from David Stout < 
> ragbrai65 at yahoo.com>: -------------- 
>
>  Sorry to keep beating this thread to death but I am still have trouble.
>
>  I have port 19-23 forwarded on my router. I went to dyndns and set up a 
> dns. I can ping the ip remotely (from work) but when I try to do a TELNET 
> session I get a connect failed message. I also have putty installed on my 
> win box at work and when I try ssh or telnet from the win box I get Unable 
> to open connection: connect(); unknown error.
>
> "Daniel A. Ramaley" <daniel.ramaley at DRAKE.EDU> wrote:
>
>
>  What type of access do you need? A terminal window, or a full X session,
> or something else? For just a terminal window, i'd recommend
> downloading PuTTY (Google for "putty" and it should be in the first 2
> hits) and using it to SSH to your Linux box. You'll need to make sure
> your Linux box has a routable IP, or forward the SSH port (TCP/22) from
> a routable IP to the Linux box.
>
> X is a bit more complicated; i've never needed to go from MS Windows to
> X Windows. There are projects such as Cygwin that will let you set up
> an X server on Windows and then from there you'd be able to connect to
> the Linux box and run applications. A possibly easier solution would be
> to run VNC on the Linux box and then connect from Windows with a VNC
> viewer. I've done that before, though with Linux or OS X as the client
>
>  rather than Windows. It gives you a full deskto p, and is much more
>
> responsive than X over SSH. To use VNC to go from one Linux box to
> another, get SSH working, then on the server do "vncserver :2 -geometry
> 1024x768 -depth 8" and on the client "vncviewer -via
> localhost:1". When done you can stop the server with "vncserver
> -kill :1" on the server. I would think that using Windows as the client
> would be similar, though the client command may differ slightly.
>
> On Tuesday 08 August 2006 08:01, David Stout wrote:
>>I would like to access my Linux box from work. At home I am running
>> SuSe 10.1 with a linksys router. At work I am on Win XP Pro. What is
>> the best way to accomplish this. Do I need to forward any ports?
>>
>>David Stout
>>Systems Programmer
>>Regency Homes
>>
>>---------------------------------
>>Do you Yahoo!?
>> Next-gen email? Have it all with the all-new Yahoo! Mail Beta.
>
> -- 
> ---------------------- --------------------- -----------------------------
> Dan Ramaley Dial Center 118, Drake University
> Network Programmer/Analyst 2407 Carpenter Ave
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> David Stout
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>
>    From: David Stout <ragbrai65 at yahoo.com>
> To: Central Iowa Linux Users Group < cialug at cialug.org>
> Subject: Re: [Cialug] Remote Access
> Date: Wed, 9 Aug 2006 13:35:23 +0000
>
>
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>
> David Stout
> Systems Programmer
> Regency Homes
>
>
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> ---------- Forwarded message ----------
> From: "Justin Richeson" <jrnosee at gmail.com>
> To: "Central Iowa Linux Users Group" < cialug at cialug.org>
> Date: Wed, 9 Aug 2006 15:05:12 +0000
> Subject: Re: [Cialug] Remote Access
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> David Stout
> Systems Programmer
> Regency Homes
>
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