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I have been using OvertheWire terminal coding wargame and i have accedentally
ssh'ed the server and it said in the describtion that i there is no ssh.
this message appeared
Permanently added 'natas0.natas.labs.overthewire.org' (ECDSA) to the list of known hosts.
what should i do so im not a host and what does it mean that im a host?
A "host" in this context means server, and it's talking about the server you were connecting to, not your machine.
On your machine, there is a file called known_hosts. This contains the ssh "fingerprints" of every server that you have connected to.
The first time you connect to a new server, ssh records the fingerprint. This is important, because it means ssh can detect someone spoofing the server in the future (by warning you that you are connecting to a different server from last time). Typically, users see this warning when the server is upgraded or moved to a new datacentre, rather than when something untoward is happening.
Your message is just saying that your ssh client has recorded the server fingerprint to allow you to check that you're connecting to the same server the next time you ssh to it. My guess is the server that you connected to accepted your ssh connection, but used it to print a message saying that ssh was not available.
If you want to remove the fingerprint from your system, you can can open that file and remove the line that describes the wargame server. However, I doubt there is any risk from keeping the fingerprint.
If you want to do this this:
On a mac or a unix/linux system, the file will be in ~/.ssh/known_hosts. Open it up, remove the line that describes the wargame server, and then save the file.
On a windows machine using putty, you will need to edit the registry to remove the hosts:
Open up ‘regedit.exe’ by doing a search.
Navigate to HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\SshHostKeys
Delete the host key for the wargame server.
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I am wondering what is wrong with my windows server 2012 r2 standard, use this server to serve as file server only to replace my current windows server 2003 standard edition.
During installation, setup with ip address 192.168.103.200 and everything ok, after some adjustment and configuration, we decide to take the server to production and change the ip address to the old ip address and power off the old server, which the ip address is 192.168.2.2, but after change the ip address, the server is not able to connect to other computers and vice versa. Try to change the ip address to 192.168.2.3 and everything is working.
Anyone know what could the cause for this issue?
I think the source this problem there is network level. Try to ping itself. Make on server ping to 192.168.2.2. If no then this is problem with driver's NIC. But if yes... Then check your network switch or router. There are maybe any settings for MAC address and this IP address(any filter rules your firewall). I'm almost sure this problem is in port access settings in your network equipment.
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Closed 7 years ago.
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This may seem like a silly question, and I think already know the answer, but I haven't been able to confirm it yet.
When using PuTTY to establish an SSH connection to another machine, does the target machine have to have PuTTY installed on it too?
My assumption is that the SSH connection is independent of PuTTY, as PuTTY is just the utility that is being used to establish that kind of connection, and thus it is not required to be installed on the target machine.
Is this correct?
Short answer: no.
PuTTY doesn't have to be installed on the remote machine, but something does. As a comparison, your web browser (Firefox, Chrome, etc) is an HTTP client which talks to an HTTP server (Apache, Nginx, etc) on Stack Overflow's server. In the same way, PuTTY is an SSH client on your Windows machine which talks to an SSH server somewhere else.
If you're connecting to a Linux/Unix based system, you don't really have to think about that, because the SSH server software is installed and set up by default, but if it wasn't there, there's nothing PuTTY can talk to. If the remote computer is running Windows, it is unlikely to have an SSH server running on it unless somebody has specifically set something up - although I read somewhere that the PowerShell team are working on adding one.
The answer is no. Putty is not required on the target machine.
You are correct; PuTTY is to SSH as FileZilla is to FTP: just a utility.
The target machine doesn't need PuTTY.
As you think : Putty is just a tool. If you want to use SSH just check that the target has SSH enabled.
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I am running a trial of Windows Azure and setup a simple Windows Virtual Machine. However, I do not seem to be able to use the Windows Remote Desktop connection to remote into the machine. What am I doing wrong? At first sight it does not seem to like my userID and password. But then I also cannot ping the VM address. I do not want to go through VS or any other tool, I like to do a simple remote desktop connection through the Windows RMD tool.
Can you check that port 3389 is open in your VM? This port is normally used by remote desktop? You can check this from Virtual machine->Endpoint section within new azure preview portal. if there is no port defined, you will have to create new one.
It could be that the port is blocked, Azure VMs default to port 52137, in your endpoint settings alter this to the regular port 3389 - this worked for me.
Freddy, would u please confirm first if your Windows Azure Virtual Machine is running or not and this you can confirm by looking at Preview Portal. I have seen some cases when the VM does not start first time and you would need to restart it first time.
So if VM is not running then please start it from the portal directly or even if it shows "Running" start please restart it again.
There are a few troubleshooting steps described below so please follow them:
http://social.msdn.microsoft.com/Forums/en-US/WAVirtualMachinesforWindows/thread/9c88a364-c3eb-41aa-a6b0-3ceae00491c2
If none of the above steps resolve your problem go ahead and report this problem to same forum and you will have direct assistance from Windows Azure Virtual Machine team.
RDP to a new VM with the RDP "endpoint" setup does not work by default for security reasons.
You need to get the RDP certificate or the .RDP file from azure.
click on a running VM and click "Connect" in the control panel at the bottom, this will download the .RDP file that contains the certificate, enter user name and password and away you go.
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Closed 5 years ago.
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This is an OSX specific question. I have been googling my a$$ off, looking at OpenVPN clients like tunnelblick and viscosity. Obviously I'd like to use tunnelblick, but I have no problem paying a couple bucks for viscosity if I must.
Question: Do either tunnelblick or Viscosity (or any OpenVPN gui for OSX) provide the option for ip binding? Or whatever you call the option that, when my connection to my VPN is down, I am disconnected from the internet completely?
(From what I can tell tunnelblick will alert you that your connection is down. Viscosity I know nothing about.)
I assume that you're setup to "send all traffic over vpn" (redirect-gateway def1)
If so, when you disconnect, all routes related to OpenVpn should be automatically deleted, so that your prior network is restored (net_gateway)
However if you want to Block Internet Access after OpenVpn disconnects, there are several options.
One way is to route default to your vpn_gateway (ie 10.80.0.25 in the below example)
sudo route add default 10.80.0.25
This can be done with a down script or through Viscosity's GUI.
Other approaches to solve this problem can be found here
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Closed 8 years ago.
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I think this is more a Mac networking configuration issue than anything else, but am not sure.
I have Subversion set up on my Windows Home Server machine (similar to this: http://www.hanselman.com/blog/RunningASubversionServerOffYourWindowsHomeServer.aspx). This setup has been working for me for months, using Windows clients.
Now I'm trying to add a Mac client, and it can't resolve the network name of my WHS server. If I open a terminal window on the mac, and attempt to ping or use nslookup, I get an error that it can't find the server. On the PC side, I can ping, but nslookup doesn't resolve the name, so I'm assuming that PC's ping is resolving the name as a NetBios name.
I've found a number of articles online that explain how to set up default suffixes based on Windows domains, but the Windows Home Server doesn't establish a domain by default. (It's in workgroup mode.)
Anyone have any suggestions or pointers?
The quick and easy way to get this working would be to add an entry to your host file on the MAC. You can find the file in /etc/hosts
Edit the file and add an entry at the end as follows:
<ip address> <hostname>
example:
69.59.196.211 www.stackoverflow.com
That is the way that I would go, and they mention using the host file in the article you posted. More info on editing the hostfile of different machines can be found here:
http://practice.chatserve.com/hosts.html