Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices.

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Randomly getting booted off of SSH despite sending keepalives

I’ve cooked up a Debian 7 virtual machine (with VirtualBox) in an attempt to play with setting up my own server and other such cool tricks. This is all on one computer. I can SSH into the virtual ...
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2answers
79 views

OSX ssh: Connection closed by [IP]

So when I try to ssh from one of my mac to another mac like this: ssh root@macpro.local I get: Connection closed by 192.168.1.64 I tried: ssh -vvv root@macpro.local and get: OpenSSH_6.2p2, ...
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2answers
506 views

OSX: ssh: Could not resolve hostname: nodename nor servname provided, or not known

There are two mac hosts in my Wi-Fi network (laptop and Desktop) I'm trying to ssh laptop from Desktop - everything works fine When I'm trying to ssh from laptop to Desktop doing this: ssh ...
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1answer
33 views

How can I type Umlaut characters in a Putty session

I am trying to type some German characters in my putty session. I am able to type it on notepad or other editors. asdƲas But when I try to paste the above text on my Putty session, nothing happens ...
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1answer
76 views

How to disable rate limit on SSH connections in UFW?

I've got a dev server to which I constantly sync my code using rsync. To secure the dev server a bit more I now activated UFW, which seems to work fine. The problem is that it works a bit too well, ...
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41 views

SourceTree SSH options on OS X

I'm trying to connect to GitHub through SourceTree on OS X using SSH. Even though I can connect fine command line, I can't seem to work with any repo through SSH in SourceTree with the error: ...
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1answer
95 views

How to use putty for forwarding keys

My situation : - I am connecting from my PC (Windows7) to the server A via (using my private key and my password) with a userA - I'd like to connect from A to the server B via a command ssh: ssh ...
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16 views

Can I tunnel to a host-only device?

I have a tricky routing/tunnelling question, hoping someone can help. My setup is this: On my lan, I have a Ubuntu workstation and a Windows 7 PC. The Windows 7 PC is running Oracle Virtual Box, and ...
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51 views

Very slow sshfs connection

Sshs mount point is shared in local samba network. Windows users use it to access remote server. Due to very high load of remote server and low speed of internet connection sshfs mount point works ...
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1answer
53 views

Attach a tmux session to a remote machine

I am using tmux on my local machine and usually have several sessions simultaneously. What I usually do is I have a session with different windows to work locally and the other sessions in which I ...
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1answer
43 views

What should my $DISPLAY variable be and why is it not set?

I am using Max OSX 10.10.2 Yosemite and SSHing into a remote machine but cannot get X11 forwarding to work. When I ssh -X RemoteMachine, I get : $echo "$DISPLAY" to return nothing. Indeed, when I ...
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2answers
56 views

SSH Server Not Visible to the Public Internet

I have OpenSSH Server installed on a Ubuntu (Server) 14.04 machine. I can connect over my local network but cannot across the Internet. I have port forwarding set up on the router. I have tried: ...
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1answer
33 views

How to tell if PuTTY is using my ssh key from Pageant or not

I'm trying to set up an ssh key and use it via PuTTY/pageant. I've added the key into my .ssh/authorized_keys file, I have my key loaded in pageant, and I have "Attempt authentication using Pageant" ...
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1answer
99 views

Can ISPs still throttle torrent traffic when using socks?

I've seen guides telling users to use a VPN or SSH tunnel to avoid ISP throttling of bittorent traffic, but if you use a SOCKS(5) proxy wouldn't it be just as effective? My understanding of SOCKS is ...
3
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1answer
293 views

Unknown linux process with random command

I have a unknown process when I run top: When I kill the process it is coming again with another random name. when I check the rc.d levels and init.d there are many random name similar like this ...
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1answer
50 views

SSH to a local VirtualBox with Ubuntu

I installed an Ubuntu server image on VirtualBox. Next I configured port forwarding 2222=>22. When I use the following command things work ok : ssh -p 2222 java@127.0.0.1 Password is prompted and ...
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1answer
191 views

How to get thc-hydra to work from homebrew installation?

I've installed thc-hydra (brute force tool) on my OS X machine using: brew install hydra But when trying to hack the ssh password on my server I get the following error message: [ERROR] Compiled ...
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1answer
21 views

ssh | how to handle errors for multiple commands

Hi I am aware that we can check the status of previous command by $? following scenario is not working for me ssh $USER@$HOST bash -c "' echo "Preparing list of files to be transferred...." rsync ...
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105 views

under windows 7 x64, x11forwarding putty ssh connecting to fedora 14 with xming, firefox no display specified

I used putty to ssh connect to a remote fedora 14. I would like to run firefox in my local windows 7 x64. I installed Xming, Xfonts in windows7, and configured /etc/ssh/sshd_config X11Forwarding yes ...
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1answer
27 views

protect the known_host file from writing - good or bad idea?

I want to protect the known_host file from writing So I want to perform the following steps on my Linux red-hat server Cp /dev/null /root/.ssh/known_hosts chattr +i /root/.ssh/known_hosts I want ...
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2answers
54 views

Cannot login to one specific Linux server with PuTTY private key

I use a single private key to login to several Linux servers using PuTTY. When I need to login to a new machine, I first log in by password authentication and then add my public key to ...
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1answer
39 views

ZFS send/recieve over ssh on linux without allowing root login

I wish to replicate the file system storage/photos from source to destination without enabling ssh login as root. I've tried a number of different combinations such as: sudo zfs send -R ...
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1answer
12 views

Does SSH only use a key named id_rsa?

I created my own key named my_ssh_key_rsa, followign the steps illustrated here: http://www.linuxproblem.org/art_9.html Even though I added it correctly to the authorized_keys file on the remote ...
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2answers
31 views

ways to ease remote Unix server adminstration tasks

We have a dedicated CentOS server running Apache, PHP, Mysql. I'm normally on a remote Windows 7 machine, and I use Putty to SSH into the CentOS server. Time and time again i find myself having to ...
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113 views

SSH Keys with Codeanywhere and Bitbucket

Maybe I am understanding the concept wrong, but I am not able to find an answer on google, or the respective websites from the question. I have a multiple private git repositories that are hosted on ...
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1answer
15 views

ssh-add -D deletes keys on originating host

I have an ssh-agent running on my macbook. I use ssh -A and carry the keys forward to my redhat box. The thing that surprises me though is that when I do a 'ssh-add -D' on the redhat box, the keys ...
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21 views

Established connection on VPS not appearing in tcpdump

I'm running the kippo honeypot on port 22 with my actual ssh on port 2999. netstat Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 ...
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2answers
45 views

Difference between VPN and SSH? [closed]

What is the difference between connecting to a remote system via SSH and connecting to a remote network via VPN? For instance, if I can connect to a remote machine on another network via SSH, why the ...
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2answers
31 views

How much can a system administrator see?

I have Cygwin installed on a Windows system. From Cygwin I SSH into some other system that is not part of the network. Does the system administrator know that I am connected to this remote system?
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1answer
60 views

SSH Connect to Domain that points to different IP

A bit of background info, first: I have a domain that is configured to run a mail server, iRedadmin, postfix, etc. I can receive and send email and everything works great. The problem lies in the ...
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1answer
101 views

ssh ForceCommand with Match

I try to setup a ssh server which is a kind of jumping host to other servers reachable via ssh. For that I use the ForceCommand like this: Match Group g_ssh ForceCommand nc -q0 my_internal_server 22 ...
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2answers
37 views

Wrong exit status upon evaluation of command substitution via ssh?

I've the following simple shell command which I'm expecting to fail and it does on my local: $ DIR=$(false) && echo ok || echo fail fail $ sh -c 'DIR=$(false) && echo ok || echo fail' ...
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33 views

ant <scp> support for ssh-agent

I have an existing build.properties file that uses scp like this: <scp todir="${linux.user}@${linux.site}:@{todir}" keyfile="${ssh.keyfile}" passphrase="${ssh.passphrase}" trust="yes" ...
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1answer
123 views

SSH Permission denied(public key,password)

I have two Linux machine one is consider as master(192.168.8.70) another one is slave(192.168.8.161). In both machine i installed openssh server.And i create an RSA key pair in both linux machine with ...
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1answer
125 views

SSH into Homestead Using Git Bash on Windows Characters Not Displayed Properly

After running: homestead ssh and logging into the VM everything looks okay until you're typing certain commands or viewing command results where the characters aren't rendered properly so you get ...
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1answer
100 views

PuTTY exits after entering password (log : “This account is currently not available”)

I'm new to the SSH console. After entering the IP address, port and password my hosting provider supplied me with, the PuTTY console exits immediately. When I enable logging to "All session output" ...
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13 views

Optimal server security configuration [closed]

What would be the optimal security configuration for a production Linux server in terms of user access? Here is my suggestion: ssh authentication: yes password authentication: no root user without ...
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2answers
311 views

Using PuTTY private key for new user on AWS EC2 Server

I started an AWS EC2 instance. I can connect to my instance with the user ec2-user using the SSH private key generated by Amazon. I followed the directions at: ...
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1answer
100 views

Server refuses SSH key provided by KeeAgent plugin of KeePass

I am using KeePass2 and KeeAgent on Windows and attempting to connect to a Linux box using Putty and pscp. I have configured KeeAgent per these instructions: ...
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68 views

Force all traffic through proxy

My scenario is like this: I connect to my university server from my home (using Bitvise, Putty or SSH). I enabled SOCKS/HTTP proxy forwarding. I can configure my internet browsers to use this proxy ...
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2answers
89 views

Terminal hang after entering login SSH password on server. Did I just got hacked?

I was doing routine maintenance on my server. As usual, after connecting successfully to my server on port 22, I was shown a login prompt: $ ssh admin@1.2.3.4 admin@1.2.3.4's password: Seeing no ...
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1answer
172 views

ssh + sudo + su into login shell

I have several machines I ssh into regularly only for the purpose of using sudo su to spend the rest of my session logged in as some special-purpose user. The general workflow is: mymachine:~ me$ ssh ...
0
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1answer
183 views

X11 Forwarding over ssh - Could not find ':' in DISPLAY: 1

I'm trying to connect from my mac (Xquartz installed) to a ubuntu server. I use the -Y option with ssh. When I ssh to the server and run any graphical application for example xclock, I get the ...
0
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1answer
42 views

Can't connect to home network from school

So, I set up an SSH connection to a computer on my home network. The port-forward directs from port 8001 to 22 on the computer. The connection works fine externally, but in my schools public network ...
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1answer
106 views

To use ssh-id-copy do you need both id_rsa.pub and id_rsa?

I am trying to setup a second access ssh key for a friend. He sent me his id_rsa.pub. ssh-copy-id -i id_rsa.pub root@123.123.123.123 /usr/local/bin/ssh-copy-id: ERROR: failed to open ID file ...
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85 views

setup socks proxy on vps with multiple IPs for specific users

I have a VPS centos7x64 with 17 IP's. 16 of them is ipv6. What I want is 17 ssh socks proxies for 17 users, so lets say user15 would get 15th IP from total list of 17. First user will use my only ipv4 ...
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0answers
31 views

Unable to port forward to VM through loopback (127.0.0.1)

I have a somewhat strange issue on my PC where I am unable to reach a Virtual Box VM with port forwarding through 127.0.0.1. It will however work through 127.0.100.1, or 127.x.x.x for that matter. I ...
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1answer
26 views

An interesting case study regarding permission.

We have two users. Tom and Jim. System using krb5 and sldap. Tom$ ssh machine1.somecompany.com Password: Permission denied (publickey,gssapi-with-mic,keyboard-interactive). ////// Jim: ssh ...
2
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1answer
41 views

Known hosts file keeps getting deleted

Have a weird issue where my known_hosts file is getting deleted periodically. Is there any way I can watch the file to see what may be deleting it? Any OSX logs that can be monitored to see what might ...
0
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1answer
83 views

cannot rsync via ssh from crontab

I'm having issues transferring files with rsync via ssh. If I just run rsync -avz devel@10.10.10.83:/home/devel/ $/home/user/rsync/servidor it works as expected since the public key is stored in ...