Secure Shell (SSH) is a protocol primarily for encrypted shell connections.

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Domain randomly becomes unresolved

Recently, I've been having some issues with a domain name. I set up my domain to point to my server, but every now and then, when attempting to ssh in, I get the error: ssh: Could not resolve ...
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1answer
27 views

Copying data between AWS EC2 machines

There are times where, in order to do some debugging or perhaps a manual migration, I need to copy large chunks of data from one EC2 instance to another. When the size of the data is tiny, it's simple ...
2
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1answer
18 views

Cygwin OpenSSH server does not respond after first command from PHP (Using phpseclib)

I got cygwin and sshd working fine. And there are no issues at all when using putty. It responds as expected even for multiple commands. But when using phpseclib , A response is received only for the ...
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1answer
28 views

how to meter an SSH network usage?

It may be a simple question, but how can I see how much bandwidth an SSH connection, in Unix and Linux, has consumed since the login time until the SSH session is terminated (logged out)? Thanks, ...
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0answers
22 views

IPTables on two interfaces - cannot see where I'm going wrong

Ubuntu 14.4 I have used iptables before without issue but am having a real struggle with them today. I have two cards eth0 and eth1. eth0 does have more than one ip so has eth0:0 and eth0:1 etc. If ...
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0answers
7 views

OpenSSH for windows using /cygdrive/g/.ssh as home folder [migrated]

My problem is simple. I just installed OpenSSH ( I also have cygwin, but I need to have the windows command line ssh.exe working ) . When doing ssh -T git@github.com I see that ssh.exe is trying to ...
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0answers
50 views

Internet works, can ping everything but one IP does not connect [on hold]

An hour ago I was connected to my vServer via SSH and edited the mysql database. Since ~45 Minutes I can not connect to that server. The problem is only affecting my desktop Other devices in my ...
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0answers
23 views

As a user with a home server, is it particularly bad or dangerous to open port 22 to my server? [migrated]

I have a CentOS home server that I use for various things, which sits on my home network behind my router. Normally when I want to do something remotely I will VPN in (my router has a built-in OpenVPN ...
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2answers
19 views

What is causing the famous “broken pipe” when I use tmux inside an SSH session?

Scenario1: I SSH from my employer (OSX Yosemite SSH client) to my home server (Debian stable) and (re)connect to a tmux session. If I leave the terminal inactive for a while (~20minutes), it seems ...
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1answer
26 views

sshd on a minimal Linux: “Failed password for invalid user root”

I'm trying to start SSH server on a minimal Fedora installation. And I mean really minimal: one that is produced by diskimage-builder ramdisk builder. It does not even have users (absent /etc/passwd ...
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2answers
19 views

Adding an SSH public key to a new account without enabling password authentication

On a SSH server, I have the following (truncated) configuration: PubkeyAuthentication yes PasswordAuthentication yes On my client, I have a key pair, and have added my public key on the server ...
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1answer
20 views

Ubuntu 14.04 LTS - SSH and VNC cannot be connected infrequently / connection loss

sometimes it seems to be impossible to establish a connection to this server. Later when a connection could then be established I am not able to see any hints what was causing this behaviour. When I ...
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1answer
25 views

Issued kill -9 -1, centos not working

created user in centos and edited nano /etc/passwd and edited created user as user:x:0:0::/home/user:/bin/bash and logged as that created user and issued kill -9 -1, from then on words my server not ...
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1answer
23 views

How to do SSH authentication and CVS update automatically from cron job?

I call a script from cron job. In the script it needs to run CVS commands to update from a remote repository. To do that, it needs to SSH authenticate. I put the following code in the script ... ...
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3answers
26 views

Server login fail

When I login in my server using ssh, it shows me a message with the number of failed logins since the last sucessfull login. Currently I have this: Last failed login: Wed Jan 28 17:54:17 EST 2015 ...
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1answer
72 views

SSH key login not working

i am having some problems logging in to one server to SSH via a key this is the client output: ssh 'importer@pdwhost.iwillkeepthis2.me' -p 2201 -v OpenSSH_6.0p1 Debian-4, OpenSSL 1.0.1e 11 Feb 2013 ...
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1answer
335 views

Upgrading openssh-server within an ssh session

Suppose that you issue apt-get upgrade from an ssh session and one of the packages to be upgraded is openssh-server. Is the new sshd process restarted after the upgrade? If yes how is the session ...
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1answer
25 views

SSH connection refused after installing webmin

I'm running Debian Wheezy on Amazon EC2, from their offical image: http://deb.li/awsmp I've got my SSH key and everything has run perfectly until I installed webmin via the deb-packages: ...
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0answers
11 views

Handing server auth.log [on hold]

I'm running an Ubuntu VPS. Every morning, my auth.log seems to be overrun with failed login attempts from various IPs. This list was a lot larger when I was still allowing password access to the ...
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0answers
17 views

SSH using Agent Forwarding with Windows Host OS, Vagrant Ubuntu Guest OS, and Keepass/Keeagent

Intent: To be able to deploy to lan-example.com from any dev environment; whether it be directly from the virtual OS, or any single-OS system, or even over the internet using ONE SSH key stored in ...
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1answer
24 views

OpenSSH as SFTP server: Trigger successful and faulty changes

I am using the current OpenSSH version on Debian 7.7 Whezzy, which is, according to dpkg, 1:6.0p1-4+deb7u2. I configured OpenSSH to allow clients to connect using SFTP, and read and modify (upload or ...
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1answer
19 views

closing ssh tunnel when using connection sharing without killing ssh?

I typically use ssh with connection sharing enabled; this causes any ssh tunnels I create subsequent to the initial ssh login to use that connection. Is it possible to close an ssh tunnel without ...
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1answer
15 views

Configuring Pfsense via ssh

I want to know how i can completely configure and add add tables to pfsense via ssh. my goal is to have a web installer that configured multiple system and based on the output it will configure the ...
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1answer
24 views

Can't change folder ownership via SSH

For some reason, I have a folder that I cannot read nor change its ownership. If I do a ls command, this is what I get: drwxrwxrwx 4 myusername myusername 4096 Jan 26 20:35 media1 <--- OK ...
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10 views

HTTP Post over reverse SSH connection - data cut off

Here's a schema of the setup: Client --HTTP-Post--> SSH Server <--rSSH--> Camera An IP-Camera is behind a firewall / NAT and therefore opens a reverse SSH connection (tunnel) to a publicly ...
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0answers
39 views

SSH issues on centos [migrated]

I'm trying to switch all of my servers to ssh key auth logins. I have it working with some servers but for what ever reason my new centos server is not working correctly. I am on windows and using ...
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0answers
5 views

ssh-keygen change passphrase, askpass prompt still asks old one. seahorse related? [migrated]

I changed my ssh passphrase with ssh-keygen -p and it is correctly updated in the id_rsa file. I then removed all keys from ssh-agent. Seahorse (or gnome?) reloads all keys immediately into the ...
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1answer
29 views

Amazonubuntu ec2 is not responding via ssh [on hold]

It used to work but now it won't respond. ssh -i aws-niklas140428.pem ubuntu@54.72.xxx.x It does respond via HTTP though and I can restart it in the webGUI at aws.amazon.com How can I find the ...
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2answers
43 views

Where's sshd in OpenSuse 13.2?

After I installed OpenSuse 13.2 I discovered that even if the ssh connection to the box were successful I could not find the running service as I did before (with chkconfig command) Why? My last ...
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1answer
27 views

How to change SSH key on Google Cloud?

I need to replace the existing SSH key with a new one, but I don't see such options in Cloud admin panel. What is the right way to do this?
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0answers
7 views

Port forwarding not working on Verizon FIOS router [migrated]

We have a MacPro connected to a Verizon FIOS modem/router. We are trying to connect to it via ssh remotely. It is set to listen for ssh on port 23. It works fine using LogMeIn Hamachi. But using the ...
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4answers
75 views

Change SSH Port, but spoof on port 22

I have changed the SSH default port (by updating the Port attribute in the /etc/ssh/sshd_config file). But what I would like to do is still make it appear as if everything is working as expected if ...
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2answers
36 views

User that can only logon with ssh keys, not password

I'm trying to create a user on a Linux box that can only log on via ssh with a key specified in authorized_keys. The user should not be able to log on via password, neither via ssh nor locally at the ...
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0answers
16 views

How to install a headless VM for ssh server from within Linux? [closed]

I run Fedora 21 with GNOME. Is GNOME Boxes capable of running a headless VM server that I can ssh into? I know virtual box does this... but it seems like this is too much. Is this something I could ...
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1answer
34 views

Web dev left, can't contact to him, how do I reset root password for ssh so I can access it?

Our lead tech (unprofessionally) left our project, we can't contact him, but I, as a semi-technical project manager have access to our server on Joyent. Our new dev needs to take a look at our running ...
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1answer
16 views

opsworks/chef databag where to put the json file?

Hello I'm reading this howto: https://github.com/imoglobe/opsworks-cookbooks/blob/master/user/README.md but it does not mention where to put the data bag in the cookbook with the list of users in json ...
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2answers
38 views

Default SSH credentials for CoreOS?

I am trying to play around with CoreOS, and I just went to their ISO download site and downloaded the latest stable ISO. I then created a new VM instance with that ISO, and it looks like the instance ...
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1answer
20 views

Two factor athentication on SSH server without root privileges

I want to set up two factor authentication on a server, on witch I don't have administrative account. The purpose of this is: I want to give some other people possibility to create SSH tunnels to this ...
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1answer
30 views

connection to ssh server [closed]

How to connect to ssh server on port 22 from behind very restrictive firewall where is only port 80 and 443 available? I tried port mapping on my ssh client but it says it can map local port higher ...
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2answers
66 views

MySQL with bind-address - possible to create an ip exception?

If you set the bind-address to 127.0.0.1 in my.cnf is there any way to manually allow connections from a specific ip address? Mostly my database is accessed by the server it is hosted on, but I also ...
0
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1answer
54 views

root accepts any password : how to change to a real password?

I have an old Linux system which can be accessed via a public IP address. When you connect to the SSH port you can login as root with any password. The only restriction is that the password needs to ...
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0answers
11 views

permission denied (publickey) but key seems is present [migrated]

I hope I didn't overlook an answer but so far it seems I'm hitting a brickwall. I'm using VirtualBox on my Mac OS X with an Ubuntu 12.04 guest system. While it works perfectly fine with password ...
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votes
1answer
35 views

Issue with access via port 22 from some FTP clients [closed]

I am having an issue with connecting to an SFTP server. On the same computer when I access SFTP via application A, I am given access, but when I use application B, I have no access. In my server ...
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1answer
46 views

Git clone over SSH access denied only from specific server

I have an Ubuntu 12.04 server inside my office network that is being used to host our git repos. The server is running Gitlab 7.1.1, and has SSH on a non-standard port. It works perfectly for ...
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2answers
35 views

Restricting per-user outgoing SSH

I have a server which I administer. It has port 22 access to many machines. I want to use it as a bastion host for some users. The catch is that I want each user on my server to have its own whitelist ...
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36 views

Why can't I SSH to this AWS NAT instance in a public subnet?

For experimentation purposes, I’m trying to setup an AWS EC2 inside a VPC that has both public and private subnets as described in this tutorial. However, when I try to SSH in step #2, it fails ...
2
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1answer
47 views

screen -R not working with ssh

I have a linux box in the office I want to ssh into from my Macbook at home. I can’t reach the box directly on port 22, but I have a port tunnel nailed up between localhost:23001 and port 22 on the ...
0
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1answer
9 views

vSphere-created node complaining about ECDSA fingerprint?

I just cloned an Ubuntu template in vSphere Client, just like I've done hundreds of times before. It didn't give me any errors, however when I went to SSH into this server to test it, I get the ...
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0answers
32 views

How to use SSH to access file shares: Win2012->2012 from service

This relates to Win2012-R2 on both sides of the equation. Bitvise and others have shown how to do SMB over SSH, for example here: http://www.bitvise.com/file-sharing However, this has the downside ...
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1answer
20 views

How can I set up a build server that accepts git pushes (Heroku style)?

A lot of services designed for running lightweight apps on clusters (Flynn, Deis, Dokku) are following Heroku's deployment standard of adding a git remote and pushing to it when you want to build ...