SSH (Secure SHell) is a protocol for running commands on a remote computer.

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4
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0answers
254 views

Slow terminal print out

Just installed (netinstall) debian wheezy on a second machine newer machine however the terminal print out is noticeable slower than on the old machine although the new have faster CPU, RAM and HDD (...
1
vote
1answer
817 views

SSH remote backup script

I am trying to backup a remote server to my machine. I am trying something like ssh user@ip "dd if=/dev/sda" | dd of=~/backup.img But that obviously doesn't work. Other variants that don't work. ...
8
votes
2answers
3k views

Restrict password-less backup with SFTP

I need to perform backup of a server to my computer using Duplicity: duplicity /etc sftp://backup@my.dynamic.ip.address//home/backup Before this can be done, I need to allow password-less access by ...
1
vote
2answers
2k views

Why does this ssh command not work? (cat ./file | ssh <user@host> “cat | sudo -t -t 'cat > /root/location/file'”)

I'm trying to do the following but it's not quite right. cat ~/Desktop/blah.png | ssh -t -t trusktr@50.116.4.56 "cat | sudo -i 'cat | /path/to/blah.png'" I have my public ssh key in the trusktr@50....
-2
votes
1answer
853 views

automatic capturing top output by cronjob CENTOS 6.5 x86_64

I have this command: top -n 14400 -a -b -d 1 > /toplogfile.txt I want to make a script which is run by cron every day to capture top output, and if it is possible gzip the output file after the ...
5
votes
1answer
8k views

Copy/paste into SSH'd VIM from local (Windows) clipboard

I would like to copy from a local machine and paste into vim on a remote box which I am SSH'd into. That's it. I have tried "+p and "*p, mouse middle-clicking, and a couple other things to no ...
0
votes
1answer
126 views

Supply additional ssh options in config file

How can I supply additional options in .ssh/config? I know that information like Host, Port, User etc. may be used in the ssh-configuration file to abbreviate ssh commands. I frequently create ssh-...
1
vote
3answers
5k views

Force ssh to not to print warnings

Is there a way to avoid ssh printing warning messages like this? "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r", "@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @\r", "@@@...
4
votes
1answer
6k views

How to Block SSH Brute Force via Iptables and How does it work?

I'm planning to add the following rules to iptables to stop ssh brute force attack which are common these days. -A INPUT -i eth0.103 -p tcp -m tcp --dport 4522 -m state --state NEW -m recent --set --...
1
vote
1answer
290 views

What linux server settings allow my long running processes to keep running after the terminal is closed/terminated?

In previous jobs and experiences, I used screen or nohup to run my long running jobs from my terminal screen. Most, if not all of my previous jobs' servers dropped you if it didn't detect any ...
12
votes
2answers
7k views

How can I make ssh ignore .ssh/config?

I have the following in my ~/.ssh/config. HOST 10.2.192.* USER foo PreferredAuthentications publickey IdentityFile ~/.ssh/foo/id_rsa The above configuration lets me connect ...
2
votes
1answer
3k views

Locked out of server with SSH - anything I can do?

I accidentally locked myself out of my server. I changed the port, added ssh-keys, PermitRootLogin is 'no' and if I remember correctly PasswordAuthentication is also no. Logging in on another server ...
4
votes
3answers
3k views

bash adds extra single quotes

I have a problem executing my script. When executing it in debug mode (bash -x), I can see that bash is adding extra quotes. Therefor my script is failing. Here this is within my script: testvar="\...
1
vote
1answer
279 views

SSH X11 forwarding put on a different monitor

Is there a way to use ssh and X11 forwarding with multiple monitors, such that one screen gets the remote session and one keeps the current session? Note: In case I didn't clarify, I meant forwarding ...
1
vote
0answers
164 views

How to upgrade Fedora OpenVZ container over SSH?

what is the standard procedure for upgrading Fedora (18 to 19) that runs as an OpenVZ container on my VPS via SSH? Can I simply use fedup or does the admin have to perform the upgrade from outside of ...
0
votes
2answers
650 views

How to Find the Cause of Too Many Dropped SSH Connections?

Overview: I have a home setup, behind a home router, on which there is Proxmox Hypervisor running over 10 VMs. One of those VMs is the first point of entry after router. It is just a jump host Centos ...
2
votes
0answers
3k views

Can't Install ImageMagick on Centos using Yum

I am trying to install ImageMagick on my dedicated-virtual Centos server for use with PHP. I first ran the following commands successfully: # yum install gcc php-devel php-pear # yum install ...
1
vote
1answer
3k views

OpenSSH hangs after login without showing login prompt

I ran across an issue with ssh after fresh Ubuntu 13.10 installation on Lenovo T420. I tried git pull (which failed) and this led me to more general ssh failing. After spending some 2-3 hrs of ...
1
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1answer
85 views

Ways of logging to Linux machine [closed]

How many ways to log to a Linux machine there are? Direct login, using connected keyboard :) Remote login via ssh (-Y) to console or GUI is there any other means - defaultly allowed, or enabled in ...
7
votes
2answers
1k views

Public key f3:6e:87:04:ea:2d:b3:60:ff:42:ad:26:67:17:94:d5 blacklisted (see ssh-vulnkey(1)); refusing to send it

I'm reproducing the Debian PRNG vulnerability from 2008 in a lab environment. Now I'm trying to SSH into the machine, but every time I try to send the private key I get: Public key f3:6e:87:04:ea:2d:...
0
votes
1answer
600 views

Passing multiple scripts to shell over ssh

I have a somewhat lengthy script which sources other scripts to include the functions there. I'd like to execute this script remotely via ssh. Now I thought to make one script file of it (without ...
1
vote
2answers
853 views

ssh out of port 80 to port 22?

The isp I am currently connected to only has port 80 open, but I need to ssh to my server which listens on port 22 of my router there. Is there a way to go out through port 80 here, then in through 22 ...
2
votes
0answers
35 views

Mount a workstation dir upon login to server over ssh

I'd like to have a local directory be mounted upon logging into a remote server via SSH. So if I were to ssh into foo.bar.com as user baz then there would be a directory mounted in /home/baz/roaming - ...
1
vote
3answers
2k views

SSH public key authentication works on LAN and not from WAN

I've setup my SSH server to use public key authentication. When I connect to my server on local network, it authenticates. But it doesn't when I connect over the internet. I don't think the problem ...
0
votes
2answers
2k views

Ssh 'access denied' from one host but not the other

Consider the following scenario: I have a Debian-ssh-server setup and exposed it to the internet for some time for testing. Also I have an account which is basically configured as root in the sudoers ...
1
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1answer
87 views

Using passwordless ssh on CentOS 6

I have a fresh install of CentOS 6 that I am trying to connect to using ssh without a password. But each time I try to login, I am asked for the password. Here are the commands in order: ssh-keygen ...
2
votes
0answers
332 views

SSH login from external authentication

Here is what I try to accomplish: I have a server with a git repository. I use ISPConfig as control panel for our websites and I want to integrate the ISPConfig API for email authentication as second ...
1
vote
2answers
67 views

Disable authentification for ssh [duplicate]

Is there a way to store my password when ssh'ing on a server? I tried to change the variables BatchMode and PasswordAuthentication in my file /etc/ssh/ssh_config, but to no avail. Could someone ...
3
votes
1answer
374 views

Installing openssh-server after Rescue Disk boot

I tried to help a friend with hard drive boot problems. I first asked her to make a rescue disk (Ubuntu 12.04.3), and boot from it. Then I asked her to open a console (Alt+F1) and use sudo to become ...
2
votes
1answer
241 views

Was my Unix server compromised?

Someone asked if this constituted a break-in and wondered if their server had been compromised. Jan 12 04:16:51 foo sshd[26725]: Failed password for root from 61.174.51.207 port 1076 ssh2 Jan 12 ...
6
votes
2answers
2k views

Non-ASCII printable characters in sshd banner

It's possible to configure a banner for sshd that is to be displayed as a connection is opened, via Banner /etc/motd.ssh in sshd_config. Note that this is displayed before the authentication occurs, ...
3
votes
3answers
2k views

Storing the private key password for auto-mounting SSHFS?

I connect to a server via sshfs using private/public key pairs. My local key needs a passphrase to use. NOTE: The public key has already been copied to the remote server. I'm looking for a method to ...
1
vote
3answers
5k views

How to forward port by (sub)domain name?

I have this setup: a (Host) FreeBSD 9.2 host server running VirtualBox with another (Guest) FreeBSD guest server. I have set up port forwarding on the Host to the Guest like this: VBoxManage ...
11
votes
5answers
88k views

X client forwarded over SSH “cannot open display: localhost:11.0”

I have enabled X forwarding on remote machine where SSH server is running: # grep -i forward /etc/ssh/sshd_config X11Forwarding yes # On local machine, I have started SSH client with -X flag ...
1
vote
1answer
559 views

What's wrong with my AD/LDAP integration?

I upgraded a system from openSuSE 12.3 to 13.1 earlier this week. The upgrade trashed the networking and LDAP. The networking I was able to fix by deleting the bad adapter that the upgrade added, ...
0
votes
0answers
2k views

How to restore a DD image file in my primary disk on new debian server

I have a dedicated Debian server at Online.net and I want to change the server by a more powerful (always Debian OS). For that, I have made an image on my old hard disk with this command: dd if=/dev/...
1
vote
1answer
1k views

ssh_exchange_identification: Connection closed by remote host on vnx machine (linux)

I changed the password of my linux machine . I was able to login for sometime and after that I am not able to ssh. I am getting the following error: ssh es4042cs -v OpenSSH_5.1p1, OpenSSL 0.9.8j-...
3
votes
1answer
15k views

SSH connection timed out. it's not client or server…what now?

I have been using a Linux server via SSH for months, it still works from other locations but for some reason, this week, it isn't working from the office. Putty says "Connection timed out" Is there ...
5
votes
1answer
537 views

Secure access to remote SSH tunnel

So I wish to be able to access my Raspberry Pi (which I keep at home behind a firewall) remotely. One option is to use a static IP address, but as a poor student I don't want to fork out for one, and ...
2
votes
1answer
540 views

use SSH tunnel to baypass Captive portal

I know that DNS tunneling is the good choice when we try to bypass captive portal, but i tried to do SSH tunneling instead of DNS but it doesn't works, technically speaking is that possible -bypass ...
2
votes
0answers
21 views

Route socks proxy traffic through wireless client [duplicate]

I have a router with two Internet WANs: DSL (vlan1) and wireless client (eth1). They are both in default route: vlan is the first and eth1 is the second (I am using ip route add default scope global ...
45
votes
6answers
62k views

Using while loop to ssh to multiple servers

I have a file servers.txt, with list of servers: server1.mydomain.com server2.mydomain.com server3.mydomain.com when I read the file line by line with while and echo each line, all works as ...
3
votes
0answers
36 views

unable to forward X11 applications [duplicate]

I installed a headless Debian server which has Wireshark installed. Now I would like to run Wireshark in a way that it uses X11 server running in my Linux Mint laptop. As a first step I permitted X11 ...
1
vote
0answers
332 views

ssh local tunnel to VM

So, can anyone explain why this doesn't work? Everything from remote host (192.168.1.3): ssh -L 9000:192.168.1.2:80 login@192.168.1.2 elinks http:127.0.0.1:9000 and I can see a web page. other ...
3
votes
1answer
1k views

Disable ForwardX11Timeout without ForwardX11Trusted in OpenSSH Client?

By default, recent versions of OpenSSH automatically set ForwardX11Timeout to 20 minutes if you set ForwardX11Trusted to no. This means that 20 minutes after you start your ssh connection, you can't ...
4
votes
2answers
2k views

Add ssh user with minimum rights for backup [duplicate]

I have a small server running Debian and I want to add an account with SSH access for backups. The user of this account should have no console access. He can only transfer (backup) data via SCP to/...
1
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0answers
341 views

Fix fonts through ssh

There seems to be some problems with the font size when connecting remotely to another Xserver using ssh. I am using manjaro linux and awesomewm. As far as I understand, the local font settings are ...
2
votes
2answers
12k views

Bash script calls expect script with master SSH connection

I'm trying to write a bash script that calls an expect script to establish a master SSH connection to be used for the remaining SSH commands in the bash script. ~/.ssh/config: ControlMaster auto ...
0
votes
1answer
839 views

SSH accesss between CentOS and Vmware installed Ubuntu

I am here to request the Linux lads about using the SSH type remote access between my CentOS (Host) and VMWare installed Ubuntu. I am not new to Linux but I am completely new with practical ...
1
vote
3answers
173 views

What is the difference between lhome and home, and is it causing my SSH key authentication to fail?

I have RHEL running on a system with my account having the root privilege. My home directory is in /lhome/myusername. If I try to add any user their home directory is created in /home/newuser. What ...