noob question about setting up a server that routs

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

hi,

i am wanting to setup a server which i can login remotely and do stuff like i am in front of it anywhere. i am using DSL btw.

i have a router and direct connection is always refused coz it is behind router, some of my rfriend told me you can get around it by setting up a server which i have no idea what is it all about.

i heard apache, ssh, blah blah blah. confuses me alot.

any place that explaint the basic of server or you can just go ahead and tell me what to do. any advice is welcomed.

thanks for reading.
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I do what I want, and that's what I do.
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Carbon

NeddySeagoon · Posted: Mon Jul 14, 2003 6:34 pm Post subject:

carbon,

You need to run sshd on the remote machine so that it will accept incoming ssh requests.

Your 'router' may do a lot more than just route. Network Address Translation (NAT) and firewalling perhaps?

You need to configure the router to forward port 22 to the remote machine or ssh packets will never reach it. (Your router/firewall will drop them)

Now you can log into it with the ssh command, as in
ssh -X <ipaddress>

or if you need to be a different user on the remote box
ssh -X -l <user> <ipaddress>

-X forwrds X protocol
-l is login
<user> is your user name on the remote box
<ipaddress> is the ip address of the remote machine, or the router, if the router does NAT.

See man ssh too.

By way of testing, you can run the server and client on the same pc then ssh 127.0.0.1 should open a secure connection to allow your pc to talk to itself on the network. It shows that ssh is set up OK

Regards,

Neddyseagoon
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Computer users fall into two groups:-
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carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

how do you configure the router, mine is a netgear whatever, it has 4 ports
and i have hub too , just so i only need to get 1 line from downstairs to upstairs and computer upstairs can share the connection.
my future will place on downstairs tho.

haha sorry to make you read my decoration.
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I do what I want, and that's what I do.
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Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

NeddySeagoon · Posted: Mon Jul 14, 2003 8:55 pm Post subject:

carbon,

With a bit of. luck, your router may already be managing your network.
Look in /etc/conf.d/net for a line that starts

#iface_eth0="dhcp"

If the '#' is missing your luck is in.
Set up the second PC the same way and plug it in. It should 'just work'.

Regards,

NeddySeagoon
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

what about windows box?
i have a winxp machine that connect to the router thru a hub
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

what is a must in make menuconfig if it needs to work as a server?
ftp server for instance.
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I do what I want, and that's what I do.
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devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

i mean how does the windows box get around the router to have direct peer to peer connection available.
_________________
I do what I want, and that's what I do.
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devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

arrrr, ok the situation is this.
if my windows box is behind the router, people cannot send me file with ICQ.

but people that i know tells me that if i setup a server , then there will be way to get around this.

not sure if thats true. :oops:

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I do what I want, and that's what I do.
GNU World Domination

Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

i looked at the netgear http interface, it has a place where you configure port forwarding
if i want ftp and ssh to work, which port shall forward to which ip?
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I do what I want, and that's what I do.
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Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

ssh is tcp/22
ftp is tcp/21, tcp/20

Does the Netgear have a pre-defined FTP service option? I would use that. I am concerned that passive/active transfers between two firewalls (one at the end user and one at the server) may cause problems unless the firewalls are statefull.

You forward them to whatever IP has those services running.

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

thanks!!
plus, i am running a text base ICQ on the gentoo machine.
what i want to do is, i can ssh to the machine and be able to continue to use my running text base icq. how to do that?
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

say my gentoo machine has ftp server and ssh server running
and the gentoo machine has an ip IP1

and my windows box has an ip IP2

so at the router port forwarding service, i make it forward port 22(ssh) to ip1 and port 21(ftp) to ip1?

what if i want port22 to be forwarded to my windows box too?

i guess this comes down to if ports arent explicitly forwarded, they will get dropped. is that right?
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

regarding the ICQ thing, what i am trying to do is have icq running 24/7, and i can log into my gentoo box to "continue" to operate the running icq.
if i log on with ssh and open ICQ again, it wont do what i am trying to do.
any clue?

another question, if say my windows box also have a ssh server running, and i make it listen on port 9999, then i will have to forward port 9999 to my windows's ip right?

i understand why i only have 1 ip now, coz there is only 1 DSL modem. how to find out what is the ip that my ISP assigned me? plus if it was dynamic, how do i know what is my IP when i am not home?
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I do what I want, and that's what I do.
GNU World Domination

Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

dynamic DNS service?
who provides that? does it cost money??
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

my netgear router http interface has a DNS service, is it possible that a dynamic DNS service is already built into the router?

plus, can i reach the http interface of the router or is it just seeable from within the LAN?
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon

devon · l33t Joined: 23 Jun 2003 Posts: 943

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

i emerged proftpd and when i try to ftp it with a ftp program, it starts at the home directory
/home/blah
and i can netvigate anywhere on the hard drive, and i wanna find out how to prevent that
can i setup a "root" folder which people connects thru the ftp port goes there and cannot go up a level?
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon

carbon · Guru Joined: 27 Jun 2003 Posts: 455 Location: New York

one more question :oops:

does ping go thru a specific port as well? coz i cant ping my gentoo machine at home from work
_________________
I do what I want, and that's what I do.
GNU World Domination

Carbon