Has anyone set up an nfs mount through an ssh tunnel?
I have been doing a lot of reading but nothing works.
i have
<nfs client>-----<gateway>------<nfs server>
all running redhat 5
I have a headless server, running Fedora 13. I want to make a ssh tunnel to that server from laptop that is also running Fedora 13. Logging into that server over ssh works well, X11 forwarding also works, but I can't establish a ssh tunnel.
At the moment I was trying to connect two small python tcp sample programs, that communicate through port 8000. Running them both on my laptop works well.
What I am trying to do is that I am making two seperate ssh connections to my server, let's say it's address is myserver.com.
1) I make a 'standard' ssh connection to it
Code:
And run the server program
2) I open another terminal window and make the tunnel
Code:
3) I open 3rd terminal window and try to run the client program, that is trying to connect to localhost:8000.
If I understand it correctly, the client should now connect to localhost:8000, ssh would discover that and send that data to myserver.com port 8000. Then the server program on myserver.com is listening on that port and should get that data and send "hello world" string back to the client. Then the client should get that, print it to stdout and exit.
Unfortunatly all what it does is that it just hangs for about ten seconds and then says "connection lost" (timeout?)
I have tried other programs, they also timout.
By passing the -v argument to ssh it outputs:
Code:
When I try to connect the client it prints four more lines:
Code:
So as you see, it says that the connection times out..Also can anybody tell what the "Unspecified GSS failure." means? The possible break in attempt is caused by connecting to the server using the myserver.com address while being in the same local network with the server. If I connect using server's local ip address (ie. 192.168.1.xxx), the message dissappears.
I've set up a machine with VNC through SSH. And it works just great when I first create the tunnel using:Quote:ssh -L 5902:10.0.0.250:5902 jk@10.0.0.250and then open localhost::5902 in vinagre (if I input localhost:2 it auto chnges to localhost::5902 for some reason).I would however like to have one less window (gnome-terminal) open and use the "Use host _ as SSH tunnel" in vinagre.But for the life of me I can't get it to work. Anyone here that can help me figure out what to input in vinagre to get it to work (without having gnome-terminal open in the background) ?
View 7 Replies View RelatedI'm trying to set up an ssh tunnel so that I can use an internal dev apache server inside a network. The machine is at 192.168.0.10. If I'm ON the machine and type "http://localhost:80" the Apache test page serves up fine. If I'm inside the network and type: "http://192.168.0.10:80" the Apache test page serves up fine.
However, if I use the IP address and the following:
ssh -L 8888:192.168.0.10:80 me(at)xxx.yyy.zzz.ip
and then type "http://localhost:8888" I get a blank white page, no errors, and a note
"channel 3: open failed: administratively prohibited" appearing in the Xterm where I've opened the tunnel.
A similar command:
ssh -L 8888:my.ip.at.home:5900 me(at)my.ip.at.home opens up a tunnel just fine, through which I run VNC. I've checked the firewall on the apache server, and it's offering up port 80. I've checked that "PermitTunnel yes" is in the config. The router allows ssh on port 22, both tcp and udp.
I have an sshd server up and running (F13 64bit) I'd like to connect to a pc that's behind a firewall using ssh tunnelling, so I have something like
ssh -R 1234:127.0.0.1:22 myuser@mypc
then from mypc I can succesfully login to the remote pc. I have just une question. How can I list the ssh active connections and the forwarded ports ?
I've only got to
netstat -tunva
but this returns only (filtered)
tcp 0 0 127.0.0.1:1234 0.0.0.0:* LISTEN
tcp 0 0 ::ffff:172.16.0.XXX:22 ::ffff:172.16.1.XXX:60744 ESTABLISHED
Now I know that the first is the tunnel end but how can I connect the two lines if I don't know the port number (ie: someone else estabilieshes another tunnel)
I used to play with gw6c ( a client for tunnel broker ) It works well with fedora9 , fedora 10, but not with leonidas. my rpm is gw6c-6.0-0.4.beta4.fc9.i386.rpm ( a little old!) when I tried to install i have got this: libcrypto.so.7 est ncessaire pou w6c-6.0-0.4.beta4.fc9.i386 I try to make a soft link to libcrypto.so.0.9.8k, but nothing; The question :-Is there a solution for that pb - did you know a better client for non native ipv6 connectivity?
View 2 Replies View Relatedi have installed openvpn and config it for a tunnel. my server.conf and client,conf is as follow:
server.conf
port 1194
proto udp
[code]...
Its annoying to unmount my flash drive twice.. its not a major problem actually but its kinda annoying , its whenever i plug-in my flash drive.. everything works well except when i need to un-mount it.. I usually unmount it twice using right-click of the mouse, then it mounts itself back, so i have to unmount it again.. Is there any way to control this? How do i setup the auto-mount option for USB flash drives?
View 1 Replies View RelatedI'm working remotely at the minute, but have several 'incoming' automatic reverse shells connecting to a dedicated server. This dedicated server does not have X, but several of the 'incoming' shell servers do. Basically, take three machines, laptop, server, client. Laptop and client have X, server does not. All three machines have password-less logins to each other (laptop > server, server > client) and can password-lessly establish a shell.
I've tried ssh -X user@server "ssh -X user@client gui-application" and, no suprise, I'm getting 'Cannot open Display" messages. Does anyone know I nice one-liner for this kind of tunnelling?
I would like to have a linux server for Using SSH Tunnel with PuTTY ! May i can use ubuntu desktop edition for this ? or it is bether to use server edition ?
View 8 Replies View RelatedI'm trying to create a VPN through SSH but encounter the following:
Code:
[18:42:11]root@bronzhip:/home/casey# sudo ssh -w 0:0 97.**.***.221 -i VPN
channel 0: open failed: administratively prohibited: open failed
[code]....
I'm trying to set up a secure web tunnel at home I have an Ubuntu box (desktop), a Mac, and a Windows 7 box. I use all of them for different reasons. I want to be able to route traffic from my browser through my Ubuntu box. I have done this before with proxy servers abroad, but I want to do it using ssh and my box at home so I don't have to pay for a service i.e (Secure Tunnel)etc.
I followed the instructions at http://bit.ly/hAnp6u. However, using my Win7 box, after I set the browser part per the instructions, I get no connection from the browser.
Is it possible to chain together multiple SSH tunnel hops in a single `ssh -L` command on the client side? I have two gateways I need to get through in order to access a remote host. For a normal SSH client connection, it's simple enough chain this all together by simply appending the additional SSH connection commands to the first one:Code: ssh gateway.1 ssh gateway.2 ssh remote.host.
View 6 Replies View RelatedI'm trying to tunnel and SSH connection through another server.for the tunnel is ran:ssh -L 8112:yy.yy.yy.yy:22 -N user@xx.xx.xx.xxBut when I try to ssh to localhost -p8112 I get an immediate error saying "exited: remote closed the connection
View 1 Replies View Relatedi have a Netbook which is connected to the internet with its wireless card, i have another computer that connect to the Netbook via wired cable (LAN), in order to shre files BTW the computer and still get an internet connection to the bench computer i am using SSH server on hte Netbook, and create a SOCKs (i really don't know that is it exactlly, i just followed up with some tutorial) on the bench and i can get an internet connection on the bench machine via Firefox.
the problem arise when i try to use YUM, as far as i understand it, it does not know about the SOCKs.the masseges that i got from yum are:14: PYCURL ERROR 56 - ""i have tried so far (based on some googleing that i have did):1. type 'export http_proxy='http://localhost:8080"' (8080 is the port i use to create the Dynamic SSH for the SOCKs) in the bench machine.2. in yum.conf i have tried to add a 'proxy=...' line.i have found somthing that i think could help, but i didn't tried it
I want to develop program to put (tunnel) sniffed packets into another packet, i already have sniffer code to capture packet, can some one give me use full site or simple code to do that.
View 3 Replies View RelatedUnfortunately I have followed a misleading guide to set ssh and scp in order not to supply password everytime and...I messed up my ssh/scp settings as it does not work anymore.Well, in my attempt:
I moved to
Code: Select allcd ~/.ssh
then I created a rsa key
Code: Select allssh-keygen -t rsa
without giving any passphrase.Then
Code: Select allcat id_rsa.pub >> authorized_keys
chmod 600 authorized_keys
Then I tried tunnelling and...it didn't work. So, ok, I tried to recover previous settings erasing all the items in the folder ~/ .ssh/. After I tried copying a file with the "usual" command that used to work before (i.e. scp file user-id@server) and...I've found out it does not work anymore!
I get this error message:
ssh_exchange_identification: Connection closed by remote host
I Need to make an SSL tunnel over SSH, I need to create exactly an SSL tunnel,I have a situation like that, I heared it is possible,but don't know how to create an SSL tunnel over SSH i am having putty installed on my pc,So i think i can use putty for this purpose, But i don't know how to do this.
View 1 Replies View RelatedI have set up a Ubuntu 10.10 server. I have been using ssh tunnels to encrypt my web traffic at public wifi. I am trying to make this server as secure as posible so I enabled ufw. I allowed SSH and HTTP traffic in and denied everything else. But when I do that I can not use SSH -D because when I try to visit a webpage it does not load and I get the following.
Code:
uname@mybox:~$ channel 3: open failed: connect failed: Connection timed out
^C
uname@mybox:~$ fclchannel 4: open failed: connect failed: Connection timed out
^C
uname@mybox:~$ exit
logout
What do I have to do to allow ufw to allow ssh tunnels through?
I wanted to create an ssh tunnel but I do not know what commands to run .. my environment is as follows:
LAN Internet Office LAN
Home PC <-> Linux firewall <-> http server..
According to the above what I figure is that I have an internal web server at my job and I need to create a tunnel to access the web server from my PC in my home. I know I can do a port forwarding with the firewall but I don't want to publish this web server to Internet. My home PC and both servers (firewall and web) are ubuntu. My idea is create a ssh tunnel that forward port 8080 on localhost in my home pc, to the firewall (obviously with public ip), and the the firewall forward to port 80 on office web server at my job. Note that the firewall accepts ssh connections to port 22, same for web server...
When I view a work computer Remote Desktop settings it states that connections are only available to other computers on the LAN.This gives me a terminal window on the work pc2.Is there any way I can start a Remote Desktop session on pc2 through the ssh port forwarded session?
View 4 Replies View Relatedi need possible direction on setting up a tunnel between 2 different network. The tunnel will be used by devices from the 2 different network to communicate with each other (for eg DevA and DevB).
DevA <-> Linux A <=====================> Linux B <-> DevB
My school network uses a http proxy to access the internet, but I am dubious about the security, and so I would like to use http inside ssh to keep my data secure. I don't really know where to start on this, so a step-by-step guide, or links to resources, would be helpful.
View 2 Replies View RelatedI'm trying to implement a routing short-cut solution, whose requirement is as following: server1(Linux) sends ip packets(destined to server3) to server2(Linux) via an ip tunnel between them, server2 forwards the ip tunnel's output (the inner ip packets) to server3. Each server has only one NIC and a public ip associated with it. All servers can communicate with each other. I'm sure the ip tunnel between server1 and server2 was configured correctly and worked well. server2's ip_forward was enabled too. On server2, I can capture the traffic on the ip tunnel interface, and they are originated from server1 and destined to server3. The problem is server2 does not forward the ip tunnel's output at all. On server2, I just run "echo 1 > /proc/sys/net/ipv4/ip_forward". Is there anything I missed for enabling ip_forward? Or originally, ip forward can't work on servers with only one NIC, can it?
View 3 Replies View RelatedI have 2 linux servers in different locations. I need to setup a ip tunnel. I follow this steps on both servers:
Server1: ip tunnel add tun0 mode ipip local IP_Server1 remote IP_Server2 dev ethX ip l s tun0 up ip a a 10.10.10.1 peer 10.10.10.2 dev tun0
Server2: ip tunnel add tun0 mode ipip local IP_Server2 remote IP_Server1 dev ethX ip l s tun0 up ip a a 10.10.10.2 peer 10.10.10.1 dev tun0
After creating the tunnel everything is ok, but after a time(maybe some hours), I can't ping the other end of the tunnel (ping to IP_Server1 and IP_Server2 is ok all the time; the connection to internet is very reliable). I have tried "ipip" and "gre" mode, but same result. If I ping from two servers the other end of the tunnel, the connection is again established for some hours and ping is working in both directions.(if I ping only from one side the ping is not working) How can I resolve this issue for no longer having to log on both servers to ping the other end of the tunnel? If I use an crondjob to ping the other end of the tunnel at 2 hours everything is working fine for weeks, but I need other solution.
I've been running a DebLenny system on the network which acts as the local gateway. It has 2 network cards and traffic is directed as follows:
Code:
iptables --table nat --append POSTROUTING --out-interface eth0 -j MASQUERADE
iptables --append FORWARD --in-interface eth1 -j ACCEPT
However, I'd now like to put all the outgoing traffic through a remote system which will further handle the outgoing data (Squid, etc) via the PPPTP device. What would be the most efficient way by which I could achieve this?
I am building up a site-to-site OpenVPN tunnel between two locations. I am setting this up in two CentOS 5.4 boxes each containing two NIC's. I can get the tunnel up and running, and I can ping across the tunnel, however, from the client end of the tunnel I can not ping anything behind the server end of the tunnel. In other words, I can't ping anything on the server's LAN. On both servers, eth0 is the WAN side and eth1 is the LAN side.
OpenVPN server:
eth1 - 10.10.202.2/24
OpenVPN client-server:
eth1 - 192.168.204.1/24
I have IP forwarding enabled in the kernel on both machines.
Code:
[root@vpn01 openvpn]# cat /proc/sys/net/ipv4/ip_forward
[Code]...
I'm sure that the answer is right in front of me, but I can't seem to get it cleared up. I can't hit anything on the 192.168.1.0/24, 192.168.2.0/24, 10.10.4.0 or 10.10.202.0 networks from the client server.
Im trying to configure a GRE over IPSec connection between two subnets. The IPSec tunnel is opened and now I want to add a GRE tunnel over it.So, what I didn't understand is why I can't route my subnet over the tunnel, once the only route I have there says that it should route the tunnel IP over the GRE01 interface. Any hint? Thanks.
View 1 Replies View RelatedI have two firewalls, one primary (fw1) and one fall-back/backup (fw2). On the LAN side the fw's reside in the same LAN segment. I have a client who wants VPN redundancy. So I configured two VPN tunnels for this client. One via fw1 and a backup via fw2. Since the default gateway on the VPN server points to fw1 only the tunnel via fw1 is established. OpenVPN can't establish a tunnel via fw2 because of the gateway and just sits there waiting...
View 1 Replies View RelatedI need to know the procedure to setup VPN between two network. i setup openvpn access server to do this easy. 1. Step by step procedure to setup VPN 2. Setup VPN with DHCP 3. How to check that open vpn is running successfully.
View 1 Replies View Related