I have a virtual linux build running on qemu (It runs drop bear as ssh client.) and I am trying to copy some modules I wrote to it using scp using the following command:
scp -vvv -p 2222 wd/day10/int_mod.ko root#localhost:/lib/modules/3.13.5/int_mod.ko
And I get Connection refused error more specifically (I forwarded 2222 to 22 of virtual machine.):
Executing: program /usr/bin/ssh host localhost, user root, command scp -v -p -d -t /lib/modules/3.13.5/int_mod.ko
OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: connect to address 127.0.0.1 port 22: Connection refused
ssh: connect to host localhost port 22: Connection refused
lost connection
What I don't understand is I can easily connect to ssh using
ssh -p 2222 root#localhost
I can connect without any problem.
ssh and scp use different options for specifying the port. From the ssh man page:
[-p port]
From the scp man page:
[-P port]
scp uses capital P. Notice how your debug output says port 22 connection refused when you are trying to connect to port 2222.
Problem is that , ssh package is not installed completely!
you must install ssh and openssh-client so on... with Synaptic Package Manager!
in Synaptic Package Manager , first type ssh in search filter and mark ssh. then click on Apply Button to install ssh services for server and client.
by this way your problem will fixed 100 Percentage!!!
see bellow Please:
Related
I am unable to access Linux EC2 instance through SSH or browser-based SSH.
Instance id: i-01a3cdf3b36ff6d4f
Inbound rules:
HTTP TCP 80 0.0.0.0/0
SSH TCP 22 0.0.0.0/0
Outbound rules:
All traffic All All 0.0.0.0/0
Pls check below logs after running command from windows :
ssh -vvv -i "keypair.ppk" ec2-user#ec2-<IP>.ap-south-1.compute.amazonaws.com
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\PuTTY (64-bit)>ssh -vvv -i "aws-lfd.pem" ec2-user#ec2-13-234-238-12.ap-south-1.compute.amazonaws.com
OpenSSH_for_Windows_7.6p1, LibreSSL 2.6.4
debug3: Failed to open file:C:\\Users\\b.tembhurne/.ssh/config error:2
debug3: Failed to open file:C:\\ProgramData\\ssh/ssh_config error:2
debug2: resolving "ec2-13-234-238-12.ap-south-1.compute.amazonaws.com" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to ec2-13-234-238-12.ap-south-1.compute.amazonaws.com [13.234.238.12] port 22.
I checked for config file it does not exist in above location. Do I need to create one manually? If so, What should it look like?
Pls help to resolve this issue.
A Connection timed out indicates that no response was received, which is typically caused by an incorrect network configuration (eg Security Group).
I would recommend that you start by launching a new Amazon EC2 instance in the same subnet, then check whether you can connect. This way, you'll know whether it is a network setting or a problem with the instance.
If that doesn't work, things to check are:
Instance is running Linux (so it can receive SSH requests)
Security Group is permitting inbound access on port 22 (SSH) from your IP address or 0.0.0.0/0
Instance is in a public subnet, which is defined as having a Route Table that points to an Internet Gateway
Your network needs to permit an outbound SSH connection (so try another network, such as home vs work, or tethered via your phone)
I am trying to connect to remote solaris machine from a linux server using ssh but not able to connect to the solaris machine. I am using below ssd command to connect to the solaris machine
ssh <host_name>
After giving this command, I am not getting any prompt for username and password. Is it the limitation for linux to solaris connection ??
The output is:
root#host> ssh -v user#solaris_host
OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to solaris_host [solaris_host] port 22.
debug1: connect to address solaris_host port 22: Connection timed out
ssh: connect to host solaris_host port 22: Connection timed out
Go over following steps
Check the network connectivity with your target, e.g. ping.
Check if the port 22 is open on your remote host e.g. nmap -A 192.168.0.5/32 -p 22
Check if ssh daemon is running on your target svcs ssh
Come back, when the problem still exists.
I'm following the below steps to setup the ssh for running hadoop in single node, but, some how the when running sudo apt-get install openssh-server gives me an below exception trace, can any shed some light on this?
hduser#ubuntu:~$ sudo apt-get install openssh-server
[sudo] password for hduser:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package openssh-server is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'openssh-server' has no installation candidate
solutions tried:
1 # update and install, no luck
sudo apt-get update
sudo apt-get install openssh-server
2# which ssh, this not solution for this issue, but FYI,
which ssh gives below info,
hduser#ubuntu:~$ which info
/usr/bin/info
whereas,
which sshd gives no path,
hduser#ubuntu:~$ which sshd
hduser#ubuntu:~$
3 # fyi,
hduser#ubuntu:~$ ssh localhost
ssh: connect to host localhost port 22: Connection refused
hduser#ubuntu:~$
hduser#ubuntu:~$ ssh -vvv localhost
OpenSSH_5.9p1 Debian-5ubuntu1.1, 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: needpriv 0
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: connect to address 127.0.0.1 port 22: Connection refused
ssh: connect to host localhost port 22: Connection refused
you can try below command from terminal for setting up ssh.
sudo apt-get install ssh
We have been using Ubuntu VM's on Azure for some time now and rarely had a any problems. However, one of the VMs has gone bonkers lately. Out of the blue, the Ubuntu VM starts rejecting the public key -
ssh -i ~/azure.key abc#xyz.cloudapp.net
Permission denied (publickey).
Verbose gives me even more confusing signs -
~$ ssh -i -v -v -v ~/azure.key abc#xyz.cloudapp.net
Warning: Identity file -v not accessible: No such file or directory.
OpenSSH_5.9p1 Debian-5ubuntu1.1, 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: needpriv 0
ssh: Could not resolve hostname /home/abc/azure.key: Name or service not known
Wondering if anyone saw this problem or can suggest ideas/solutions?
How about the following?
$ ssh -i ~/azure.key -v -v -v abc#xyz.cloudapp.net
Executing start of services on the subordinate nodes of a cluster by means of the following command:
hadoop#one:/export/hadoop-1.0.1/bin$. ./start-all.sh
not the first time I receive result
starting namenode, logging to /export/hadoop-1.0.1/libexec/../logs/hadoop--namenode-one.out
192.168.1.10: starting datanode, logging to /export/hadoop-1.0.1/libexec/../logs/hadoop-hadoop-datanode-myhost2.out
192.168.1.11: ssh: connect to host 192.168.1.11 port 22: Connection timed out
192.168.1.5: starting secondarynamenode, logging to /export/hadoop-1.0.1/libexec/../logs/hadoop-hadoop-secondarynamenode-one.out
starting jobtracker, logging to /export/hadoop-1.0.1/libexec/../logs/hadoop--jobtracker-one.out
192.168.1.10: starting tasktracker, logging to /export/hadoop-1.0.1/libexec/../logs/hadoop-hadoop-myhost2.out
192.168.1.11: ssh: connect to host 192.168.1.11 port 22: Connection timed out
How do I fix the error below:
ssh: connect to host port 22: Connection timed out
hadoop#one: /export/hadoop-1.0.1/bin$ ssh -vvv 192.168.1.10
Sun_SSH_1.5, SSH protocols 1.5/2.0, OpenSSL 0x1000004f
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Rhosts Authentication disabled, originating port will not be trusted.
debug1: ssh_connect: needpriv 0
debug1: Connecting to 192.168.1.10 [192.168.1.10] port 22
debug1: connect to address 192.168.1.10 port 22: Connection timed out
ssh: connect to host 192.168.1.10 port 22: Connection timed out
What to do to correct an error?
Do you have sshd daemon running on your machine? Your OS might come with ssh, but in order to start sshd daemon, you need to install ssh completely. By complete I mean :
ssh : The command we use to connect to remote machines - the client.
sshd : The daemon that runs on the server and allows clients to
connect to this server.
Also, make sure there is no issue with port 22. If you still face some issue try ssh with -v switch to get the complete trace.
ssh -v myhost2
You can go here for a detailed explanation of ssh.