asked on

ssh from office to home windows to linux

I fairly new to linux so I am not sure where to start.

I have a laptop running windows xp and I want to be able to ssh using putty to a linux machine that I have at home which is attached to a WRT54G linksys router

My linux box has a static ip address 192.168.1.110
My router is 192.168.1.1

When I run ipconfig/all from my laptop when I am at home attached to wireless router I get the following. I can ssh from laptop to linux when I am at home no problem.
Where do I start?
Thanks in advance.

C:\Documents and Settings\plinnane>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : plinnane-us
Primary Dns Suffix . . . . . . . : us.dell.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : us.dell.com
austin.rr.com
dell.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : austin.rr.com
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controll
Physical Address. . . . . . . . . : 00-15-C5-0A-D5-85
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
IP Address. . . . . . . . . . . . : fe80::215:c5ff:fe0a:d585%20
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 24.93.41.125
24.93.41.126
fec0:0:0:ffff::1%4
fec0:0:0:ffff::2%4
fec0:0:0:ffff::3%4
Lease Obtained. . . . . . . . . . : Wednesday, July 19, 2006 9:04:23 PM
Lease Expires . . . . . . . . . . : Thursday, July 20, 2006 9:04:23 PM

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : FF-FF-FF-FF-FF-FF-FF-FF
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : fe80::5445:5245:444f%5
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Automatic Tunneling Pseudo-Interface:

Connection-specific DNS Suffix . : austin.rr.com
Description . . . . . . . . . . . : Automatic Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : C0-A8-01-64
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : fe80::5efe:192.168.1.100%2
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%4
fec0:0:0:ffff::2%4
fec0:0:0:ffff::3%4
NetBIOS over Tcpip. . . . . . . . : Disabled

Dbergert

you need to configure port forwarding on your router to expose ssh to the interent and point it at the ip our your linux box...

Cyclops3590

but you should have the wrt54g do a port translation for you.

for example, ssh uses port 22. Everyone knows that and thus scans for it. Have your router expose say port 2022 and in the port forwarding tell it that the public port 2022 goes to your linux box on port 22.

This will help cut down on the number of people scanning your ssh port tremendously

dplinnane

ASKER

How do I set up port forwarding?
I still need to ssh to an ip address where do I get that?
If I ssh to the ipaddress of my internet connection eg 168.192.2.66 but I have two linux machines with static ip addresses how can I ssh to one over the other. I gus I need to figure out port forwarding first.

dplinnane

ASKER

Researching this link at the moment http://portforward.com/english/routers/port_forwarding/Linksys/WRT54G/eMule.htm

ASKER CERTIFIED SOLUTION

Dbergert

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Dbergert

funny looks like you are on the right path :)

SOLUTION

Cyclops3590

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dplinnane

ASKER

My linksys router only allows me to port forward addresses of the format 192.168.1. XXX one of my ip's is 192.168.2.xxx anyway around this. IS there anyway of testing this locally instead of waiting until tomorrow when I go into the office.

Cyclops3590

doubt it, but the wrt54g does have the capability to allow remote mgmt. now you shouldn't normally turn this on, but temporarily I would think is ok. this way you can test it at work and if it doesn't work, you can at least log in and change some. when you're satisfied turn the remote mgmt off.

as for the diff. ip I'd have to say no. Why do you have a 192.168.2.x inside anyway out of curiousity

dplinnane

ASKER

I'm using 192.168.2.x just following instructions. I can overcome it by ssh from linux1 machine to linux2 machine.

I tried from work and got a connection error connection refused. I followed the instructions for port forwarding.. Not sure what could be wrong.

Cyclops3590

is there a firewall on your server that might be rejecting the connections, also, you sure you forwarded to the correct port and and referencing the public port?

dplinnane

ASKER

No firewall at least I have not setup a firewall. I used port 2022.

Cyclops3590

and forwarded it to port 22 on the server correct?
then you tried to connect to 2022 for the public ip correct?

dplinnane

ASKER

I'll send a link to my settings later when I get home, I can't remember.