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

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ssh connection issue while connecting to the remote server

I am using jsch library to connect the remote server. But i am getting algorithm negotiation failed exception. The below is the output of the ssh. Any idea to resolve this? Connecting to x.x.x.x ...
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2answers
25 views

safety of sshpass and sftp to dynamic host

I have a server with dedicated IP address A and a server with dynamic IP address B (routing via no-ip.org). A uploads a backup to B via sshpass: export SSHPASS=*** sshpass -e sftp **@** << ! ...
5
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1answer
291 views

Linux ssh: allow public-key authentication without giving user read rights to private key

Users logged in on my Linux server should be able to ssh to a specific remote machine with a default account. The authentication on the remote machine uses public key, so on the server the ...
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1answer
20 views

does OPENSSH SFTP server uses umask or preserve client side permissions after put command (chrooted environment)?

I know this question has been already discussed, but by reading the posts I could not figure the answers, because some said "yes umask can work", and others say "openssh put command always preserve ...
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0answers
7 views

libnss-ldap getent passwd - AD replies correctly but output shows local /etc/passwd

I am trying to configure libnss-ldap to provide AD authentication to my Linux Debian servers. This is working fine if user exists locally, I want to make it work for Domain users. Here is my ...
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0answers
30 views

add authorized_key not working with ldap login

I i used to login to my server with LDAP username and password. After login if i check the command, whoami -> "my_username" is displayed properly But if I check in /etc/passwd file there is no ...
1
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2answers
40 views

Add remote host to known_hosts file without prompt [duplicate]

I wrote some scripts and wish to add a remote host to my known_hosts file without any interaction. I can run a command like ssh -o "StrictHostKeyChecking no" root@10.x.x.x which will add the remote ...
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1answer
30 views

Why process wasn't killed after closing SSH connection

I launched this command via SSH on a Debian server: watch --precise -n 1 top -b -n 1 -p 27330 | tail -n 1 | awk "{print \$9}" >> 27330.log & After a while I quit my terminal. When I ...
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1answer
8 views

Auto accept rsa key fingerprint from command line

I've tried yes | ssh root@10.x.x.x to try to accept the RSA key fingerprint, but am still prompted if I'm sure I want to connect. Is there a way to make this automatic?
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17 views

execute local command using ProxyCommand ssh

I am trying to execute local command using ssh and ProxyCommand in sys config but getting an error cat ssh_config Host ameyj-c Hostname x ProxyCommand bash -s "/home/abc/abc.sh" ssh ameyj-c ...
2
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1answer
87 views

Can't allow users to log in via SSH (Bash, OpenSSH, CentOS 6.5)

I am running a CentOS 6.5 machine remotely via SSH. I use RSA keys and have disabled password authentication. The problem that I am having is that whenever I add a new user and want him/her to log in ...
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1answer
26 views

Use internet connection of server, on a client, using proxy or something [on hold]

I am working around to find the best and simplest solution to this: Assume we have a windows server 2008 R2 (name this A) with 2 network card configured, one is connected to Internet and another is ...
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1answer
40 views

iptables not allowing ssh

This is my iptable configuration. But I cannot connect with ssh with these rules. What am I doing wrong? I want to block all traffic except ssh coming from x.x.x.x ip address. iptables -F iptables -X ...
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1answer
17 views

WinSSHD, GIT over SSH Team City Fetch Url - Does not appear to be a git repo

We used to work with windows network paths to connect to git, but starting to use team city we want to use SSH. I'm having trouble testing a connection to a git repo on a server here at 192.168.X.XXX ...
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1answer
24 views

Google Authenticator - generate new set of emergency codes

I use Google Authenticator on my SSH servers with Andoid app for generating codes. After I run $ google-authenticator application create set of emergyncy keys: ...
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1answer
22 views

ssh connection issue with aws ecs

Its been 3 hours that I try to make this work. I found a lot of similar question on serverfault but any answer seem to solve my issue? There is the ssh debug: jfnault@jfnault-FX6840:~$ ssh -v ...
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0answers
23 views

Xserve running Mac OS X 10.6.8 has HTTP, SSH & ARD/VNC ports open, yet cannot connect?

The subject says it all. A client I have has a relatively ancient Xserve (2009 model I believe) that is running Mac OS X 10.6.8 Server. We’ve been able to remote into the system without issue in the ...
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1answer
31 views

Linux Logs Intrusion Detection [on hold]

I am doing a research for security monitoring in Linux system, while I am doing some testing on a virtual machine. Currently I am discovering the logging mechanisms and I am trying to simulate a ...
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2answers
88 views

Possibility of WAN Optimization for SSH traffic

While I do understand that SSH by itself is a very low bandwidth utilizing protocol, it is sometimes choking up bandwidth during peak hours in our office environment. I want to know if at all it is ...
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1answer
22 views

SSH works with Putty and ubuntu but not with Git Bash

I have set up an SSH server on a Windows Server 2012 r2 with cygwin. I can successfully connect to the server with ssh using Putty on my windows pc or using Ubuntu. However, when I try to connect to ...
0
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1answer
27 views

Looking for a central console management software that utilitizes my RDP credentials for access [on hold]

All our managed Windows Server 03+ machines are enabled for and connect fine via RDP. However, I would like a less heavy central management (command line based?) to mass manage and maintain the ...
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1answer
18 views

SSH Tunneling and LAMP at same time

I am tunneling Firefox through SSH to a remote server using: ssh -D 9999 -C usr@remotehost.com This binds 9999 port on localhost. I set this up in Firefox proxy settings using Socks5. It works ...
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1answer
51 views

Chrooted user can't login with SSH

I created a new user with no shell access like this: useradd -g www -d /www/user01 -p ****** -s /sbin/nologin user01 Then in my sshd_config I add those lines: AllowUsers user01 user02 manager ...
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0answers
34 views

SSH is using the wrong folder on Windows 8, how can I change it? [migrated]

I've been trying for the past 2 days to setup my server with passwordless SSH key logins and I just finally figured out my problem.. I'm on Windows trying to SSH into my Centos 7 machine using id_rsa ...
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4 views

libvirt-bin error on a VM when I try to list VM [migrated]

I'm using Virtualbox 4.3.18 on my Arch Linux Host machine and libvirt-bin 1.2.9 on my Ubuntu Server Cloud guest machine. Everytime I try to follow this tutorial I receive the following error when I ...
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0answers
24 views

CentOS 6.5 Bridged Networking Fails

I have a CentOS 6.5 Server that I wish to host VPS on, as well as installing SolusVM, to do this I need to bridge the network adapters for the Server and the VM's ( so the VM's can connect to the ...
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2answers
29 views

SSH tunnel (port forwarding) slow down a lot my mysql queries

I'm currently testing some configurations with vagrant (virtual box) to connect 2 servers (VM currently) together throw an SSH tunnel. The goal being to securely connect my web app to the database. ...
0
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1answer
24 views

Making a server “read only” except for me (what the inbound/outbound rules mean)

I have an ec2 instance. It will start a webserver, and my public ip is myip. I ssh into my machine. What should incoming and outgoing rules? Why? I want only my ip to be able to change things on the ...
0
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1answer
32 views

Cisco PIX Firewall Version 6.3(5)

I am unable to ssh to any servers. I've exhausted every possible thing except the corporate firewall. Its an old cisco pix firewall. [model] Cisco PIX 501 I'm trying to figure out 1) how to ...
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0answers
9 views

how to match ssh Host for resolved name

I have things like this in my .ssh/config: Host *.example.com ForwardX11 yes and this works fine with I invoke "ssh myfoo.example.com". I would like it if it worked as well when I invoke "ssh ...
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2answers
21 views

How to get forwarded with ssh [closed]

Let's say I, I know somebody's host IP-Address and the IP-Address of some lxc-container which is running on this system. When I only have the password for the user of this lxc-container and not the ...
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1answer
23 views

How to auto login a .ssh server from a .ssh2 server?

I have a server A which ssh-keygen produce a .ssh2 direcotry and id_dsa_2048_a* files and a server B which ssh-keygen produce a .ssh directory and id_rsa* files and a server C like B How can auto ...
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2answers
40 views

server side cd on sftp client connect

Is there a way with sftp to have it configured server-side to run a cd command when a client connects? I have my users thrown in to chroot, the folder has to be root:root chowned and cannot be ...
0
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0answers
8 views

winsshd restrict windows admin from managing the server

I'm installing winsshd server on client computers, and i want to give them an administrator account. but i also want to make sure they don't mess with the winsshd server configuration, which can be ...
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votes
1answer
51 views

Is the ssh key name a part of the authentication? [closed]

The ssh public keys in authorized_hosts have three parts - a type, the key and a name. For example, an rsa key might look like: ssh-rsa ...
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0answers
38 views

how to find Poodle (Padding Oracle On Downloaded Legacy Encryption ) vulnerability in Apache 2.4.7 [duplicate]

how to find Poodle (Padding Oracle On Downloaded Legacy Encryption) vulnerability in Apache 2.4.7 and solution to fix the issue. when I use openssl how can find.
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2answers
634 views

Is it possible to have sshd accept passwords only on certain ports?

I know it's possible to have sshd listen on multiple ports by using multiple Port directives. Is it possible to independently adjust the settings per port, however? In particular, is it possible to ...
0
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1answer
24 views

SSH forwarding by username [duplicate]

I want to make available a pool of dev machines to a pool of developers, where each developer should only access its own dev machine. Dev machines are on a private network, behind a NAT, whereas ...
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1answer
29 views

restrict access to ssh by hostname with iptables

I want to allow connecting via ssh only for a certain domain sub.example.com. How can I do this via iptables?
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0answers
44 views

Random SSH entries in Auth.log out of date order

Running an Ubuntu Trusty 14.04.1 LTS server at Rackspace but recently after running updates for bash, then with the reboots for the xen host vulnerability, I have the following weird issue. Some ...
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0answers
21 views

Remote server lost login information during puppet deploy

Let me discuss some background on how this situation came to be first. Skip the first paragraph if you're not interested in the details. I am in a committee in my study community that manages said ...
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0answers
23 views

SSH “operation timed out” on ec2 instance

I have performed the following steps: Clicked on existing instance > Actions > Launch more like this Kept all the settings the exact same aside from selecting a different instance type (same key ...
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2answers
25 views

ssh-keyscan stderr comment on success

I am running a shell script to add fingerprints to known_hosts. Code is like this: status=$(ssh-keyscan -T 5 $remotehost >> ~/.ssh/known_hosts 2>&1) if [[ $? != 0 ]]; then echo -n ...
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votes
0answers
36 views

Docker hides well-known ports without questions [on hold]

Experimenting with Docker I found the following behaviour. Imagine to have a Docker image <IMG> which exposes at least one port <PORT> (using the EXPOSE clause in the Dockerfile). Now ...
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0answers
20 views

SSH server in a FreeNAS jail is not accessible from the local network

I Have a FreeNAS (not sure which version - the one that uses FreeBSD 9.2) setup with a jail that I use for running various tasks. The jail has SSH service enabled in rc.conf, and I can also see the ...
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0answers
35 views

Impact on system cache due to other users logging in [closed]

If some user just logs into a server and uses it for accessing another server using ssh. Does this behaviour impact the routing server in any way: How does it affect the RAM, cache's, CPU performance ...
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1answer
36 views

Is there a way to check is a machine is accessible from its public ip?

My purpose is to find out if a machine (here known as C1) is accessible from its public ip. A few details: C1 private ip: 192.168.0.14 . C1 belongs to LAN 192.168.0.0-255 netmask 255.255.255.0 ...
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2answers
79 views

/etc/hosts.deny doesn't take effect everytime

First of all, my sshd has got libwrap.so in it, here is the checking result: root@FS9000:~# ldd sshd | grep libwrap libwrap.so.0 => /usr/lib/libwrap.so.0 (0x000000555e3fa000) When I configured ...
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1answer
26 views

SSH Failed password login - log password

today I checked the log of my sshd and I have discovered tons of lines like :Oct 12 Oct 12 12:31:34 my_user sshd[15324]: Failed password for invalid user admin from 104.194.25.135 port 2683 ssh2 ...
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4answers
44 views

Sending commands simultaneously to several Amazon EC2 instances

I'm using Windows to connect via SSH to my Amazon EC2 machines. Is there a tool like Cluster SSH for Windows? My goal is that I can connect via SSH to several EC2 machines and send each machine the ...