An SSH tunnel leverages the SSH protocol to transport unencrypted data through an encrypted connection.

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1answer
38 views

Is there any way to log entered password from ssh?

My server is under attack and some one try to run brute force attack on my ssh port, I know that I can block the IPs which are illegal,with iptables,fail2ban, ... but I want to know which password ...
1
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0answers
21 views

OpenSSH Windows Error

I want to connect with putty from one machine_1 to another Windows machine machine_2. So I install a OpenSSH Server on machine_2. I generate 2 a key pair with puttygen. I paste the public key in ...
0
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0answers
19 views

Remote port forwarding via ssh tunnel fails

I am trying to do some remote port forwarding via a ssh tunnel on my NAS (NAS4Free running FreeBSD), which is behind a firewall. I have added gateway_enable="YES" in /etc/rc.conf and also ...
0
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0answers
16 views

Use VPN from dev pc

I have a server (EC2 server with say IP: 54.548.230.25) that has a connection to a remote server (IP example: 68.25.154.21) via VPN running a web service on port 8520. However, I need to reach the ...
4
votes
1answer
47 views

reliable systemd service for autossh

I try to create a reliable systemd service for autossh. The service works, but if the host-keys changes, the service is in state ok (running). I want it to be in state "failed" if the tunnel does ...
0
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2answers
29 views

SSH Tunnel to Memcached not working

I have created a SSH Tunnel to my memcached server as follows: ssh -f -N user@56.55.55.56 -L 11211:127.0.0.1:11211 When i do netstat on my machine i get the following: So far looks good. tcp ...
-1
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0answers
6 views

Bypass DS-Lite via reverse SSH Tunnel [migrated]

My ISP unfortunately only provides a DS-Lite connection (no IPv4 address, only a IPv6 address) which makes it impossible to create IPv4 port forwardings to access devices in my local network. But I ...
0
votes
1answer
31 views

How to configure TightVNC to accept connections from localhost only

I just implemented tunneling TightVNC + OpenSSH for MS Windows successfully. The last thing I have to configure is to deny any remote connections to TightVNC Server and allow local connections ...
2
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0answers
19 views

AutoSSH occasionally running into: “channel 2: open failed: administratively prohibited: open failed” until tunnel is restarted

I'm running an autossh script using upstart for ssh tunneling / port forwarding to my postgresql database. It that looks like this: # Remote server role: database-master # Remote hostname: ...
0
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2answers
46 views

How to ssh to my Ubuntu from outside the local network?

Suppose that a Linux server A is in a local network with IP 192.168.0.90, and I have another Linux server B outside this local network, with IP 203.107.90.80. I want to get access to server A via ssh ...
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0answers
25 views

SSH Server Connection over VPN

I connect my VPS over SSH terminal via ssh keys stored in my computer, password login is disabled. But sometimes I need to surf web behind VPN service which changes public IP for my home computer. ...
0
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1answer
35 views

How to Chain Proxies With Auth (Proxychain?)

I have my Kali local machine (A). I can SSH into another server (B) and use the proxy settings in Iceweasel or use proxychains to visit 10.2.x.x addresses. However I can not access a machine (C) on a ...
0
votes
1answer
69 views

Connecting to an AWS RDS behind a NAT with an SSH tunnel

I've set up a MYSQL RDS on AWS, in a private VPC behind a NAT. With Workbench, I can connect successfully from a remote client into the RDS no problems - so all of the RDS, the NAT and the security ...
2
votes
1answer
75 views

Connection to postgresql hangs over SSH tunnel on OSX

Trying to connect to a remote PG server on OSX but it keeps timing out. First, I set up the tunnel: ssh -L 5433:serverip:5432 user@serverip Then in a separate terminal I attempt to connect to PG: ...
1
vote
1answer
47 views

Can't get SSH ProxyCommand to work (ssh_exchange_identification: Connection closed by remote host)

I'm unsuccessfully trying to use SSH ProxyCommand to connect to a server via a jump box. My config is below, I'm running this command: ssh 10.0.2.54 -F ssh.config Host x.x.x.x User ...
0
votes
2answers
65 views

Tunnelling through an IP alias

I have a server machine with a dedicated IP and several IP aliases. It has a single network interface and on it there are multiple IPs "attached". So let's say IP1 is the main ip but I also have IP2 ...
-1
votes
2answers
74 views

set up secure connection over SSH [closed]

I'm setting up a server application which requires to establish a secure connection over SSH2, e.g. a client must open SSH2 connection to the server to reach specific application: % ssh -s -p5000 ...
3
votes
1answer
29 views

Connect server A to database on server B and forward remote database port on server A

Edited: I'm quite new to all this admin stuff though! So: Whats the best way to connect a port on server A to the database on server B. The reason i want to do this: I want to connect server A to a ...
0
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1answer
59 views

Using SSH to tunnel over two hops, the last of which is connected through a reverse ssh tunnel

I would like to use OpenSSH to allow port forwarding over two hops, the last hop being connected through a reverse tunnel. Here is my current setup: Server B is running sshd on port 10000. Server ...
-1
votes
1answer
173 views

SSH connecting on port 22 but times out on 443 [closed]

I'm trying to connect to an ssh sever running on cygwin on my home computer through putty on my laptop, this works fine both inside my network and outside on port 22 but on port 443 it times out. ...
0
votes
1answer
21 views

Connect to mongodb through ssh

I'm not sure if it's related to this one, but I have a similar problem. The problem is unless I have port 27017 opened, Robomongo fails to connect even with "ssh tunnel" option. Port, address and ...
1
vote
1answer
219 views

Reach server via ssh tunnel and nginx proxy

I'm new to nginx. I've inherited a fully functional and configured Ubuntu server with nginx and would like to tune it additionally to support a somewhat weird configuration, described below. Basic ...
2
votes
1answer
112 views

ssh: ProxyCommand forward host lookup fails

I am trying to do an ssh multihop from my local machine to a server called cluster, using a server called merlot in-between. As per http://sshmenu.sourceforge.net/articles/transparent-mulithop.html, ...
2
votes
0answers
35 views

SSH VPN tunneling

I am testing some basics of SSH VPNs on Layer 2 like this: ssh -w 1:1 -o Tunnel=ethernet hostname That works fine, but is there a way to tunnel multiple VLANs over such a SSH Tunnel? I know i could ...
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0answers
31 views

why ssh not route outgoing packages (pptp)?

I have VPS #1 that pptpd and sshuttle installed on it and VPS #2 that have ssh access to it I need to rout trafic from VPS#1 to VPS#2 (by tunnel because pptp not available to vps#2) for users that use ...
0
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3answers
95 views

Daemon for N autossh tunnels

I use autossh to create a persistent tunnel from localhost to remotehost. Starting autossh manually works fine, but if localhost reboots, the tunnel is gone. That's no surprise. How to create a ...
1
vote
1answer
73 views

Limiting SSH users in LDAP to only one command on an SSH bastion

I have a private network of Centos 7 servers. Each of the servers can only be reached via an SSH bastion. Furthermore, all of these servers use SSSD to authenticate SSH users' keys against an LDAP ...
2
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0answers
137 views

How to check if ssh tunnel is alive and externаl ip in one command? [closed]

I'm connecting with phpsеclib like that: <?php include('Net/SSH2.php'); $ssh = new Net_SSH2('www.domain.tld'); if (!$ssh->login('username', 'password')) { exit('Login Failed'); } echo ...
1
vote
1answer
517 views

netcat / named pipe proxy over ssh

I am used to forwarding a remote service port on localhost using ssh like: ssh -L 2181:localhost:2182 user@server (forward remote host port 2182 to local port 2181) now, from the machine I ssh to, I ...
1
vote
1answer
389 views

SSH config ProxyCommand asks for public key

I'm trying to connect via a gateway to an EC2 instance. If I connect to gateway local> ssh gateway Then I can connect to EC2 without a password gateway> ssh ec2 # works However, trying ...
0
votes
2answers
72 views

routing external IP to ssh tunnel

I have a need to catch all packets going to an external IP/Port redirected to an ssh tunnel. Can't use VPN, it as to go via ssh tunnel. This will be citrix redirection I have an iptables rule that ...
1
vote
2answers
159 views

Sharing SSH port tunnel with local network

I've successfully created a SSH tunnel to our cloud postgresql server on a local linux server, with this command: ssh -N -f -L 5431:localhost:xxxx mycloudserver.com (where xxxx is remote port) ...
0
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0answers
155 views

Autossh causes CLOSE_WAIT after ~8min

I have Python app, which creates a socket, connects to the port and starts infinitely reading from the socket. Works great over the ssh tunnel: ssh -qnNT -p 2020 -i ${SSH_KEY} \ -o ...
0
votes
1answer
27 views

Open SSH forward ports from desktop (not in a terminal)

For reasons I won't go into I often have to set up multiple SSH tunnels to a remote box -- often enough that it would be nice to be able to initiate it with a single command from a desktop launcher (I ...
1
vote
1answer
79 views

ssh bind address through multiple hosts

I'm trying to ssh through multiple hosts which works with no problems like so: ssh -t -t user1@host1 ssh -t -t -p 222 user2@host2 Now I would like to use local host for access to a third host and I ...
1
vote
2answers
647 views

Failed to start stunnel4 on Ubuntu 15.04

I get the following error starting stunnel4 service on Ubuntu 15.04: root@scw-d91ec7:~# service stunnel4 start Job for stunnel4.service failed. See "systemctl status stunnel4.service" and "journalctl ...
0
votes
0answers
24 views

How to communicate effectively over a jumphost?

My company uses a jumphost to get into a datacenter. For various reasons I want to use applications that communicate from my localhost, to ports on a machine or set of machines in that datacenter. ...
1
vote
1answer
1k views

SSH tunnel to Docker container

Goal: connect locally to a remote repl (e.g. via lein repl :connect). Locally, this is easy: Run server (it starts an embedded nrepl server on port 8081) Run lein repl :connect 8081 & voila! ...
0
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0answers
207 views

Connection to MS SQL Server instance through SSH SOCKS proxy fails

I use a local ssh socks proxy (localhost:7070) on my Linux Laptop to connect to my company's intranet over my company's Windows+cygwin laptop, which has intranet access: Linux --(ssh -N -D 7070 -p ...
1
vote
1answer
234 views

Jmeter distributed testing over ssh tunnel

While configuring jmeter distributed testing i faced a problem of remote connection to servers which are behind NAT. Node with jmeter client has external ip, all servers are in different LANs behind ...
1
vote
1answer
1k views

Connection error in bitvise ssh client

Iam able to connect to ssh server host on openshift using putty but while using the same setting in bitvise ssh client i get the folowing error - 01:47:18.424 Connecton failed. getaddrinfo() ...
1
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0answers
94 views

Is it possible to reverse ssh to a system behind a router via a third system if port forwarding is disabled on the middle system?

I want to access a workstation in my lab from my laptop in my hostel room. But I can't directly ssh to the machine as both my laptop (in my hostel) and the worstation are behind two different routers ...
1
vote
1answer
181 views

Forward connections from docker container on specific port to local interface on host

I am attempting to run services in containers within a cloud provider. I would like the containerised applications to authenticate with an on-premises LDAP server, which is (currently) available via ...
0
votes
0answers
99 views

Weak points of ssh tunnel and x11 server, hack investigation

So, today I've been hacked. It's very puzzling to me how it was done, so I'm looking for experienced people to show weak points in design of my systems. I have two servers. One is VPS with ...
1
vote
2answers
187 views

NFS share not connecting over ssh tunnel on Mac OsX, it works on all other devices

I've been searching for a while now to try and find a solution but I finally gave up. I have a ubuntu server running an nfs share. I set it up so that you have to connect to it using ssh. which is ...
0
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2answers
204 views

Cannot connect to MySQL on EC2 over tunnel

For security reasons we want to connect to MySQL running on EC2 over ssh. We have other servers where we do this with no issues, but for some reason on EC2 it's not working. The instance is running ...
-1
votes
1answer
327 views

SSH tunnel to MySQL running on FreeBSD (Heidi SQL)

I'm trying to use a SSH tunnel to access a MySQL-server running on a FreeBSD 10.1 server. These attempts are done with Heidi SQL (http://www.heidisql.com/). The SSH daemon on the FreeBSD server does ...
0
votes
1answer
36 views

SSH tunnel through two gateway servers

I am aware of questions already asked for a tunnel through one gateway server. However couldn't find anything on multiple gateway servers. How do I configure a ~/.ssh/config file which will allow me ...
-1
votes
1answer
247 views

Setup Tunnel via ssh and use it's Internet for VPN clients

I have two VPS centos 6.6 x64 with Public IP addresses example:1.1.1.1 and 2.2.2.2 VPS with 1.1.1.1 is a VPN server I Need to connect 1.1.1.1 via ssh to 2.2.2.2 so My VPN clients on 1.1.1.1 can Have ...
7
votes
1answer
494 views

Copying SSH IDs between servers

Is it good practice to copy SSH IDs a la ssh-copy-id between remote servers in production, so that they can perform various SSH tasks with one another easier? In particular, I'm setting up SSH ...