Questions tagged [autossh]
The autossh tag has no usage guidance.
35
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Forward webpage from local network of remote device through reverse SSH tunnel
I have an IPTV camera in a remote network. It has an HTML page for changing it's parameters.
In this network I also have a linux server (Ubuntu 22.04) with already confugured autossh to my VDS (so I ...
- 1
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2
answers
236
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Can a SSH reverse tunnel accept non-local connections?
I have a server in my office behind a firewall, a home server behind NAT, and a laptop I carry around. Sometimes I want to reach the office server from home so I did the following setup.
Home router ...
- 624
0
votes
1
answer
777
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Start a service and Run/load a script with ssh or autossh, remote port forwarding in the background "-f" to execute more/next commands in the script!
My config:
debian 10.9
4.19.0-19-amd64
OpenSSH_7.9p1 Debian-10+deb10u2, OpenSSL 1.1.1d 10 Sep 2019
autossh 1.4g
GNU bash, 5.0.3(1)-release (x86_64-pc-linux-gnu)
I start a service in /etc/systemd/...
- 2,989
0
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1
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442
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autossh always exits in error
I've aliased ssh to autossh -M0 for convenience, and it works well.
However it always exits in error, which causes problems with my scripts.
e.g.
ssh me@myserver 'true' # equivalent to: autossh -...
- 1,669
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1
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386
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Autossh is not working the same locally than on a remote server
If I start autossh on my local machine as follow:
autossh -M 20000 -f - nNT -L 192.168.144.1:5433:127.0.0.1:5432 remote-user@remote-server-B
it automatically launches the following ssh command under ...
- 429
1
vote
1
answer
715
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Autossh options not consistent with what is in its man page?
I have kind of a naive question, but by reading this thread for example: https://superuser.com/questions/37738/how-to-reliably-keep-an-ssh-tunnel-open
One can see in the accepted answer how to use ...
- 429
1
vote
1
answer
672
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ssh reverse tunnel works, autossh does not
I have to access an openvpn-vpn server behind a firewall, so to do this I use an ssh-reverse tunnel. While using the "normal" ssh command works, connecting via autossh does not. For all the ...
1
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0
answers
847
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automatically reset sshfs when it locks up, remount fails unless done manually
i have 2 local dirs on my server mounted on a remote server. Local maintains connections with
autossh -M 23 -R 24:localhost:22 user@server While remote mounts with dirs-sshfs.sh
sshfs -o reconnect,...
3
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1
answer
2k
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SSH Tunnel with automatic reconnect and password auth in Docker container
I want to forward a Socks5 proxy using SSH with password authentication inside a Docker container. YES, I know that SSH keys would be better. But since it's not my own server, I'm not able to use keys,...
- 329
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1
answer
365
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autossh system script fails at boot, works on systemctl restart
I am trying to set up an autossh service to forward ports to a remote server when my monitoring server boots. After some finagling, I got a pretty barebones system script working, with one catch. The ...
- 131
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0
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100
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autossh configuration for accessing a system in private subnet
Want to set up a proxy to access a system in a private subnet.
We have a system A in our Office network.
System B and System C are in cloud. System B has a public IP.
Need to access System C in Cloud....
-1
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1
answer
494
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autossh just does ssh; where is the magic?
I did
autossh -L 5901:localhost:5901 general
and got just command shell of general machine. Tunneling was working. After I exited the shell, tunnel was closed.
What is the difference with just ssh? ...
- 3,225
1
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1
answer
1k
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Remote port forwarding with autossh from Raspberry PI to VPS in order to access the PI from anywhere on the Internet, why does it work only once?
I am using autossh with remote port forwarding from VPS to Raspberry PI in order to be able to access the PI from anywhere on the Internet, but it works only once.
I have a Raspberry PI 2 (Raspbian, ...
- 21
1
vote
1
answer
263
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setup consistent tunnel between two hosts wirh dynamic IPs
I would like to setup a constant ssh tunnel between two hosts. Now it becomes tricky as both hosts may change their IPs (not at the same time though). My idea to overcome this is to have two reverse ...
- 2,049
5
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5
answers
2k
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Autossh fails on startup
I am trying to make autossh set up a reverse tunnel to a server I have at home automatically with systemd. I set up a unit in /etc/systemd/system called autossh.service
It all works fine if I start ...
1
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0
answers
226
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autossh creating many processes every time
I'm using autossh to connect to a reverse SSH tunnel. I run it from startup.
However, I was facing problems in that the tunnel sometimes goes down.
I created a script which checks if the tunnel is ...
- 1,121
2
votes
1
answer
2k
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(root) Warning: Identity file /dev/fd/62 not accessible: No such file or directory
Very similar to Failed to open config file '/dev/fd/63', error: No such file or directory for wpa_supplicant except for the fact that I am running as root.
bash-4.4# autossh -v -M 0 -4 -o ...
- 995
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757
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how to close/reuse ssh LocalForward ports
I need to ssh to multiple hosts having this configuration:
Protocol 2
ExitOnForwardFailure yes
ServerAliveCountMax 1
ServerAliveInterval 3
TCPKeepAlive no
ControlMaster auto
ControlPath ~/.ssh/...
- 606
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2
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1k
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Creating persistent netcat link
I have a remote raspberrypi that uses autossh to connect to my local machine (with reverse tunnel -R). This should feed a dump1090 instance on my local machine. I'm using
/bin/nc localhost 40005 | /...
- 21
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1
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2k
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Reverse tunnel with autossh exits with 255
It seems since autossh changed their syntax, I am a bit overstrained in establishing a reverse ssh tunnel via autossh with my server.
This is the script I am trying to run:
autossh -M 20000 -f -N -R ...
- 115
2
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0
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380
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launch reverse tunnel on init with autossh in the background
I need an init script which will establish a reverse tunnel connection to a server. I've come up with the following start script:
#! /bin/sh
### BEGIN INIT INFO
### END INIT INFO
case "$1" in
...
- 2,049
1
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1
answer
1k
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launch reverse tunnel with autossh on bootup in Ubuntu
I would like to launch a ssh reverse tunnel on system launch.
The following line let's me establish the tunnel fine - but I end up being logged into server which I don't want, especially not from an ...
- 2,049
2
votes
0
answers
315
views
Automating autossh?
Adding
ControlMaster auto
ControlPath ~/.ssh/sockets/%C
ControlPersist yes
to ~/.ssh/config automatically creates a control connection that stays alive for a long time. This works at home where ...
- 850
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1
answer
811
views
Setting autossh tunnels
We have server with installed autossh
Number of tunnels approximately 20
Today we add new tunnel, but it doesn't work.
If we switch positioning of [email protected] and [email protected], the one ...
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20
votes
2
answers
6k
views
Is autossh redundant with systemd?
When creating a persistent reverse SSH tunnel, is autossh useful on a system running systemd? Typically, autossh is run by a service with the option -M set to zero which disables monitoring of the ...
- 331
3
votes
2
answers
2k
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AutoSSH cannot resolve hostname directly after boot
I want to set up a tunnel to my home server which will be established right after my machine boots. Using this answer, I've got my autossh command set up inside a service, which has been set to run at ...
- 181
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systemd: autossh service active but ssh exited with error
#/lib/systemd/system/autossh.service
[Unit]
Description=Auto Reverse SSH
Requires=systemd-networkd-wait-online.service
After=systemd-networkd-wait-online.service
[Service]
Type=forking
ExecStart=/...
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183
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autossh wrapper for reliability
There are a few servers spread around the globe who reverse ssh into a jumpbox to expose certain ports. The autossh process is usually evoked on these boxes at the startup using rc.local
Here are the ...
- 506
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1
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3k
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Reverse SSH tunnel with AutoSSH
How to apply dynamic port allocation in AutoSSH?
In the remote device using ssh we make a reverse tunnel by this command:
ssh -f -N -R 0:localhost:22 username@ip
It allocates a dynamic port on the ...
2
votes
2
answers
4k
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autossh not working on rc.local
I configured a reverse ssh tunnel through machines A (local, behind several routers) B (middlemen) and C (remote, the one I'm trying to access A from)
After putting all relevant keys on all machines, ...
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1
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997
views
Auto-SSH works manually but not in background
I'm running the following script on @reboot cron with root:
autossh -f -i /home/pi/.ssh/myRemote.pem -R 2210:localhost:22 [email protected]
When I run manually it works fine but from cron I see it ...
- 9,996
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0
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154
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Why does Autossh work on Ubuntu but not on Antergos?
I'm venturing beyond Ubuntu for the first time, and chose Antergos to ease my way into wider world of Linux. Everything's going pretty smoothly and pacman is becoming familiar, but autossh seems to be ...
- 353
3
votes
3
answers
8k
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Autossh at boot with systemd
I am trying to start a persistent ssh connection at boot with autossh in systemd, following guides such as this one. When I do so, it connects and then immediately disconnects, with very little ...
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2
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0
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954
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SSH Remote Port Forward Host Passwordless
I have a Remote Port Forward SSH tunnel from the host1 the host0 at port 10022 through:
$ autossh -R 10022:localhost:22 host0
With host0 record in the ~/.ssh/config file both at host1 and host0:
# ...
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4
votes
2
answers
3k
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How do I use autossh to set up a no-frills socks proxy?
I use ssh -D 12345 [email protected] to set up dynamic port forwarding via host somewhere.com. I want to switch to using autossh to daemonize the thing and to make sure I don't need to manually ...
- 9,219