SSH (Secure SHell) is a protocol for running commands on a remote computer.
1
vote
2answers
86 views
SSH client side problem: hanging and timing out on some hosts
From my laptop I'm trying to connect to HOST1 and I get:
$ ssh -vvv user@HOST1
OpenSSH_6.0p1 Debian-3ubuntu1, OpenSSL 1.0.1c 10 May 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: ...
5
votes
2answers
324 views
Prevent SSH client passing TERM environment variable to server?
I'm currently using Fedora 18 gnome-terminal, then started tmux multiplexer in it. After I connected to a CentOS 5 server via ssh command, I find:
ls result has no color
tmux, screen, hexedit, htop ...
1
vote
0answers
43 views
Why isn't hydra being disconnected?
I have SSHD running on port 5800 on some machine. (It is a my machine at home.)
If I run this manually in a terminal:
# ssh someIP -p 5800
The connection is lost because I am disconnected after 3 ...
1
vote
2answers
49 views
ssh_exchange_identification: Connection closed by remote host
OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: ...
1
vote
0answers
61 views
Provide passphrase to plymouth ask-for-password from command line
I'm working on booting a headless server (Fedora 16), entering the passphrase to decrypt the root disk (LUKS) over SSH using dropbear. I've got dropbear all working: I can SSH to the server while it's ...
1
vote
0answers
56 views
ubuntu:terminal+ssh+vim, resize
Background:
OS:ubuntu 12.04
Display: two, one is laptop, and another is a extended monitor, which is bigger.
Problem:
Open a gnome-terminal in the bigger display, and log on the remote Linux ...
2
votes
2answers
119 views
Why does my Emacs toolbar look different over ssh w/ X forwarding on Cygwin vs CentOS?
I'm using Emacs 24.2.1 installed on a CentOS 5 server, which I ssh into with X forwarding (using -Y). I have both a Windows laptop with Cygwin/X installed, as well as a desktop running CentOS 6. When ...
0
votes
0answers
79 views
In Centos 6.3- Configuring ssh for a grid server service
I am running a gridserver setup with 5 interconnected machines, I am now adding the 6th.
each has it own ip address on a separate router/switch starting at 192.168.2.100 -192.168.2.106.
The newest ...
4
votes
2answers
66 views
Determining the Password Status of a User
I have a debian box that I connect to via SSH. I have removed the password from the users root, and my personal account using the instructions here, and set up a public/private key pair so I can log ...
2
votes
1answer
130 views
Route SSH to host through interface
is it possible to route all outgoing requests for SSH (port 22) to mydynamicdns.afraid.org via wlan0 instead of eth0 when both are connected?
Since my IP is dynamic, I would like to use a name ...
-1
votes
2answers
88 views
how to code c++ via ssh with Vim or Vi? [closed]
Would I have to rent and configure a server or something? I'm sort of new to unix, but when
I was in school I had this nifty setup where I could ssh from any terminal in linux or mac or putty in ...
1
vote
2answers
760 views
bash shell - ssh remote script capture output and exit code?
I wish to use shell to invoke a script on a remote server.
I would like to capture the output of that script (its logging messages) and the exit code it returns.
If I do this:
ssh user@server ...
11
votes
1answer
340 views
How to prevent shutdown when an SSH user is logged in?
I'm administrating a networked environment and I had an interesting situation arise yesterday. When a host is required to shutdown by a regular user, it refuses to do so if other users are logged in ...
2
votes
1answer
115 views
SSH host key keeps changing
I am trying to set up a web service (using the Play Framework) on an Ubuntu machine on the network. However, I am experiencing intermittent failures connecting to it, not being able to connect to it ...
1
vote
1answer
107 views
How to ssh on multiple ipaddress and get the output and error on the local *nix machine?
command="ls -lrt;uname -a;uname -o"
for i in 10.38.227.229 10.38.164.103
do
ssh auto21@$i "$command 2>&1" >> log
#ssh -n auto21@$i "$command" 2> >> log
done
i am trying ...
3
votes
1answer
359 views
SSH causes while loop to stop
I have finally managed to boil down a problem I have been struggling with for a few weeks. I use SSH with "authorized keys" to run commands remotely. All is fine except when I do it in a while loop. ...
-1
votes
1answer
154 views
SSH Client for Windows that Allows Colors and File Explorer [closed]
I've tried out a few SSH clients to connect from Windows to Unix for school and I used putty, secure ssh client, and tessh, and bitvise.
The only problem with the above is they all have either the ...
1
vote
1answer
73 views
setup password less ssh between two accounts from third account
There are two unix accounts A and B. I want to configure password less ssh between these two accounts.This can be done without much pain but my problem is that there are mutiple accounts like A and B ...
1
vote
1answer
124 views
Mosh doesn't reconnect
I installed mosh on a desktop and server yesterday (compiled latest v1.2.3 from source) and it works fine. I left the session open yesterday and have come into the office today to find my mosh session ...
1
vote
1answer
51 views
Change order of Private Keys passed via SSH login
ssh -i ~/.ssh/username username@xx.xx.xx.xxx -v
Server is set to accept only 3 log on tries. The ssh system is trying 3 identity files before attempting the correct identity file.
debug2: key: ...
1
vote
0answers
135 views
SSH to machines in new subnet - connection timeout
I'm using RHEL4 and RHEL5.
A new group of Linux machines are setup recently using 172.16.32.0/24. The existing RHEL machines are running on 172.16.1.0/22 and 172.16.4.0/22. When I try to ssh from ...
1
vote
1answer
57 views
Why I'm still able to use ssh reverse tunnel after closing reverse ssh connection?
I have created a reverse ssh tunnel to connect to a computer behind NAT using:
ssh -R 9050:localhost:22 user@middleserver
in the destination system. I closed the terminal that I entered this ...
2
votes
1answer
89 views
SSH to server, execute commands and give control back to user
How can I do something like this with one ssh command:
echo << EOF
echo "Choose a file:" *
read f
rm -r "$f"
EOF | ssh user@host
I can use the -tt (yes two t's) with ssh to make ssh read from ...
10
votes
4answers
238 views
Does a `scp` transfer close when I close the shell?
I have scp transfer (from one remote server to another), that is quite big.
So maybe I want close the computer from which I executed this command, will this end the transfer? I have ssh access to ...
4
votes
2answers
251 views
Why SSH takes a long time to Connect
I have noticed that some Linux Servers in Network takes long time to connect using ssh.
Situations:: There are two situations I have faced.
1: On some servers some times it takes a long time to ask ...
3
votes
1answer
90 views
Is there a way to find out how many instances of the root user are logged into a Linux machine?
We have a handful of users that login to our Linux virtual machine as root either through the vSphere client or through SSH and I want to see if there is a way to tell if multiple root users are ...
3
votes
3answers
96 views
Must I store a private key in a file?
I have a db-driven application that needs to communicate with another server via ssh. The web app can generate a keypair and give the user the pubkey, or it can accept the unencrypted private key in a ...
-1
votes
3answers
108 views
Limit find results in SSH
I using a line like this to search for a bunch of files:
find . -name "page.php
The results are hundreds of lines and I can't see it all. (I'm trying to just copy/paste it into excel to analyze ...
3
votes
1answer
197 views
Tunnel AFP over SSH over Internet
I can't seem to figure out how to connect to AFP over SSH. Here is my setup:
[Raspberry Pi] <---> [router] <---> (Internet) <---> [Client]
I'd like to be able to connect to my ...
1
vote
0answers
189 views
Use dd to backup disk image within an OpenVZ container
I want to use dd to backup the disk of an OpenVZ VPS in addition to traditional cold tar backups. Because I may need to migrate to a different VPS provider.
From end user point of view, OpenVZ ...
1
vote
2answers
71 views
how to require sudo to view files?
I have a ssh server. I allow people to connect to it if they want. I do my programming homework on it. I am in trouble with my teacher because people were cheating off it. I need to know how to ...
1
vote
1answer
93 views
Session terminates immediately after authentication
I have a RedHat 5.3 server with several regular users created. Since last Friday the user "xpto" is getting "Authentication failed" error messages.
Tha account isn't locked out.
I have reset the ...
2
votes
2answers
188 views
Use desktop speakers over SSH from laptop
I have VLC media player and media files on a desktop CentOS 6.3 set up (without a GUI). I can play the media files at the machine but when I issue the command via SSH it is silent. I'm guessing it's ...
4
votes
2answers
111 views
Is it possible to store ssh connection in bash script instead of $(ssh user@ip command) every time?
I think that the code that I already have is not very efficient as it has to connect each time to the same machine and execute a command. Code:
tmp=$(ssh -nq $USER@$IP "$COMMAND" 2>> $LOG)
...
2
votes
0answers
47 views
I hang when I try to ssh into a machine with my username (or su to my user)
Yesterday I was freely able to ssh into server box-a, and it seemingly froze on me today so I killed my putty instance. I am now unable to ssh into it. It ssh's but the prompt does not appear. I am ...
7
votes
3answers
149 views
OpenSSH - map aliases in ~/.ssh/config to IP addresses in command line
Is it possible to query ~/.ssh/config in the command line? Let's say I would like to retrieve what IP address does the particular alias point to in a separate program, is it possible?
1
vote
0answers
70 views
Debootstrap and SSHs server
I got a NAS server, a synology. To be able to configure web server better than DSM can do (DSM is synology linux like), I have installed a debian via deboostrap.
My web server works really fine on the ...
3
votes
2answers
68 views
Any ideas to simplify the awkward rsync expression below?
Here is expression:
rsync -avz --progress -e "ssh -i /where/is/my/id_dsa" vivek@some.host:`ssh -i /where/is/my/id_dsa vivek@some.host "find /remote/source/dir -type f -name '*.sql' | sort -nr | head ...
2
votes
0answers
317 views
The right way for dynamic ssh port-forwarding
Want my Firefox could use localhost:9099 proxy forwarded from vps server, why it doesn't it work this way? I always get bind: Address already in use
$ ssh -vfND 127.0.0.2:9099 vpn
OpenSSH_5.9p1, ...
0
votes
0answers
469 views
Need help configuring Openssh on Win2008 via CYGWIN [closed]
I am trying to configure an OpenSSH server on Windows Server 2008 Datacenter via CYGWIN. I have installed and configured CYGWIN with OpenSSH and Basic LinuxUtils. I am logging onto the system on a ...
4
votes
2answers
170 views
Regexp in .ssh/config
At work, I often have to log into hosts which follow a common naming scheme, e.g. qc01 - qc12, hc01 - hc10, and so on. All of these need to get the same config values in my laptop's .ssh/config. Of ...
3
votes
2answers
1k views
Executing a shell script from remote server on local machine
Imagine a shell script on the remote server as
#!/bin/bash
rm /test.x
How can I (if possible) to execute this script from my local machine to delete /test.x file on my local machine. Obviously, the ...
1
vote
1answer
216 views
rsync to SFTP while moving completed uploads to another folder
I'm going to be moving a lot of data (30GB) to a server which is split up into multiple 200MB tar.gz files. This is going to take time, and I'm going to need to stop and start my computer again during ...
3
votes
2answers
254 views
Multiple similar entries in ssh config
Say I want to configure my ssh options for 30 servers with the same setup in my .ssh config file:
host XXX
HostName XXX.YYY.com
User my_username
Compression yes
Ciphers ...
0
votes
1answer
89 views
I'm only allowing pubkey auth via ssh. How can I still log in with password?
vi /etc/ssh/sshd_config
egrep -i 'Pubkey|Password|Listen' /etc/ssh/sshd_config | grep -v '^#'
ListenAddress 0.0.0.0
PermitRootLogin without-password
PubkeyAuthentication yes
...
2
votes
2answers
375 views
SSHFS specify key
I've got a question that I've not been able to find an answer for. I have two computers, both of which run Ubuntu Linux 12.04. I have set up my first computer ("home") to be able to SSH into my second ...
3
votes
1answer
146 views
What should I check after an unauthorized access?
I accidentally left an open port on my router, leaving access to one of my computers via SSH, using a rather insecure password. I noticed because I checked /var/log/auth.log and there is just one ...
2
votes
1answer
253 views
SSH locking up: suspect local problem, not remote
On my work computer, I regularly SSH into two unrelated servers. Sometimes the SSH session locks up (does not respond to keyboard input). When locked up, I can SSH in via a second open terminal, that ...
3
votes
3answers
85 views
How secure my server is… should I worry? How to increase protection
I updated my server yesterday to a new version of CentoOS including a new version of DirectAdmin panel. This new installation comes with Brute Force Monitor service.
As far as I see, this BFM ...
2
votes
2answers
316 views
SSH using keys in external storage - permissions?
I have a set of SSH keys to login to accounts and servers. However, ever since I moved my main work profile to a USB drive (for sync and ease of use among other reasons) I have been unable to directly ...
