Software :: Logging Into Server Using Public Keys?
Mar 12, 2011
I've got a slight issue with logging into my server using public keys.
It was working fine, until I had to rebuild my desktop machine. I had the key copied to the server, and passwordless logins where fine.
However now I have rebuilt my desktop, I cant get to the login.
So heres whats happend.
Rebuilt id_rsa.pub, server will not allow login. Remove id_rsa.pub and the server allows password based login.
On the server, removed authorized_keys and known_hosts. makes no difference. Server still disallows keyfile, but will allow password when id_rsa is not present on the client.
Heres a -v of the login chat with keyfile
Code:
michael@eve:~$ ssh -v server
OpenSSH_5.5p1 Debian-6, OpenSSL 0.9.8o 01 Jun 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to server [ser.ver.ip] port 22.
[Code]....
So, is there anyway of getting the server to forget the previous keys, it is remembering, As previousily said, I have completly removed the contents of ~/.ssh/ on both the clients and the server.
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Aug 2, 2011
I'm trying to write a p2p file sharing program using python's built-in libraries. Everything is going well. The only thing is that i'd like to be able to use openssl public and private keys so only a host with the public key could access/decrypt the filesharing. I've gotten these libraries (httplib, basehttpserver, ssl, os) to work using just a pem file containing both the public and private keys but no success with them seperately. Can someone point me in the right direction or offer an alternative? PS, the goal of the project is to create an anonymous, decentralized, secure file sharing program. I want to be able to upload this to sourceforge so everyone can use it, if that's any incentive
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Mar 31, 2010
I am using Nautilus to connect to an external server. Currently, I use password authentication, and all works fine. I just type sftp://SERVER and the connection is established after providing the login credentials. However, I changed the server to only accept Public Key Authentication and disabled password authentication, and as a consequence I could not login using Nautilus anymore. Is there some way to make this work?
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Jun 21, 2009
I have two computers running Debian Squeeze. I'm trying to set up the public keys for them so that I don't need to use passwords to log in. As far as I know, I did the same thing for both, however only one is working.Here is the connection output for eachBroken:
Code:
OpenSSH_5.1p1 Debian-5+b1, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /etc/ssh/ssh_config
[code]...
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Sep 23, 2010
I'm getting some errors while trying to do an update:How can I know which are the apps that are causing this, and how should I remove/update these?This is my /etc/apt/sources.list
Code:
deb http://archive.canonical.com/ubuntu lucid partner
deb-src http://archive.canonical.com/ubuntu lucid partner
deb http://linux.dropbox.com/ubuntu lucid main
deb-src http://linux.dropbox.com/ubuntu lucid main
[code]....
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Sep 30, 2010
I've been searching for a while in forums about the issue I'm facing but couldn't find anything clear, or at least my net search skills are pretty lame. I'm facing a problem with prompted user password in a SSH chain connection when using authorized_keys.
I have: (1) Client - (2) Server - (3) Testing machine (testing machine is connect to Server via usb network)I've created keys for Client and Server, and updated authorized_keys in host machines with the key values: Testing machine has Server public key, and Server has Client public key.Until now everything is fine, if I try to connect via ssh the user password prompt is not shown since public key is found in authorized_keys.
For example: from Client: Code: ssh server Works fine, no password prompt.from Server: Code: ssh testing_machine Works fine, no password prompt.But if try to do that from Client only: from Client: Code: client:$ ssh server Works fine, no password prompt.from Client: Code: server:$ ssh testing_machine Asks for password.Bellow the verbose output from previous ssh command:
Code: ssh -v root(at)192.168.100.2
OpenSSH_5.3p1 Debian-3ubuntu4, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 192.168.100.2 [192.168.100.2] port 22.
[Code].....
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Feb 27, 2011
I'm trying to set up my laptop to ssh into my home server, but I'm trying to find how to generate the public/private keys. I was able to do it in Slack 12.2 by just running ssh-keygen, but that command is not in 13.x.
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Jul 19, 2010
Another question though...i have a fedora 12 server set up and i have created 3 sudo users. I have created 3 putty keys (public and private) using putty key gen and basedn my research i was told to put the public keys in /home/"user"/.ssh/authorized_keys .I did that but when i tried to log on using the key...the server is saying "server refused key" could anyone assist in this issue
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Aug 10, 2010
My ISP has for a long time had a broken forward/reverese DNS so that my ADSL connection with static IP address resolves to a completely different IP address on a reverse query. This has not been a problem until I upgraded a remote server from 10.3 to 11.3 last weekend and now ssh connections from my ADSL connection to it using public/private keys are being rejected with the following message in /var/log/messages (IP addresses changed):
Aug 10 12:00:32 penguin1 sshd[1270]: Address 83.175.246.243 maps to 83-175-246-243.static.dsl.aupex.com, but this does not map back to the address - Possible Break in Attempt!
But if I log in interactively with username & password, the connection succeeds. I've changed the StrictModes setting in sshd_config to 'no' but this hasn't resolved the problem. Obviously something in 11.3 is being stricter about this IP mismatch than it was in 10.2 (and no, the server is not using a firewall). There must be something I can change to make sshd more permissive? I've tried before to get my ISP to fix their problem but no luck. This needs to be sorted as a server at my home (which does not run SuSE) retrieves backups from the remote OpenSuSE 11.3 server every night using scp and these are now failing.
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Jan 26, 2010
I installed OpenSSH via tasksel and am using Webmin for administration. I'd like to be able to SSH externally and want to setup the necessary public/private keys to use in FileZilla. In Webmin, under Servers > SSH Server I can click 'Host Keys' and see an RSA key. Is this the public or private key for my server? Do I need to copy this into a text file to import it into FileZilla on my remote PC (that I want to connect from)? Is that all that needs to be done (aside from opening the port on my router/firewall)? Or, is there an automated way to set this up via Webmin?
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Mar 26, 2010
At the moment we have one SSH server with the private key being on a usb flash drive, and the public key being on the server in authorized_keys2. Now that three more servers are coming online, should we generate new keys, so we have muliple private and public keys (one pair for each server), or use the same two keys to access all the servers
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Sep 9, 2010
My calling application will accept only strings and interger. we are replacing RSA bsafe library to openssl. using RSA bsafe, we have generated the private and public key in BER format. Then convert the keys, BER format into ASCII format to send the calling function. (these everything done by using RSA supplied bsafe library) same way i have to right using openssl..i m now able convert the RSA public and private key into DER format
rsa = RSA_generate_key(1024, 3, NULL, NULL);
{
size_t size;
[code]....
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Sep 24, 2010
I run the following file with the >log.log redirector and it does not capture errors.
#!/bin/bash
echo ************************BEGIN LOG******************************
date +"%m/%d/%Y %H:%M:%S $HOSTNAME"
cp -f /scripts/original/clamscans.log /scripts
[code]....
The following errors show up when I run from the file from the term window, but are not written to log.log:
tar: /public/public/clamscans/*.txt: Cannot stat: No such file or directory
tar: Error exit delayed from previous errors
mv: cannot stat `/public/public/clamscans/*.txt': No such file or directory
I know with windows you can add the 2>&1 to capture error data. Is there such a thing for Linux?
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Feb 22, 2009
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Sep 19, 2010
ENV: openssh-server-5.4p1-1.fc13.i686 Problem: I am unable to ssh using Putty (when using ssh-auth/pki) to a fedora box . I get the message: Server refused our key. Here's what I tried so far:
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- Also, tried generating keys using PuttyGen and then converted the public key and placed it on the server
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Mar 3, 2010
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Jun 15, 2011
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May 18, 2010
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May 18, 2010
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Sep 24, 2010
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Jun 26, 2011
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Jul 18, 2011
I want to use my personal computer remotely. The problem is my computer is connected to a local network that I can't modify. I can connect from my computer to another one that has public IP via ssh. Is it possible to login to the "proxy" computer from somewhere and somehow use the connection established before to connect to my PC?
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May 5, 2011
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Nov 15, 2010
I have 2 servers running CentOS 5.4 Final, one is 32 bit and the other is x86_64.When I ssh to either server, the session will freeze after a while and I cannot type anything except I close the term. This has happened before, and I thougthat was caused by iptables' rulesBut now I turned off iptables and the problem remains.I tried tcpdump on my machine(client running OpenSUSE 11.2), and it shows that after the freezing, client will still sent ack message to the server.So I think this may be caused by the server.Note that I can ping the server smoothly.Does anybody meet this problem before
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Jan 27, 2011
i have a requirment for giving my ip address a domain name.
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Mar 5, 2010
i have a commercial ISP connection with 5 IP addresses available and i want the following configuration note when i say domain group i am refering to a group of top level domains (not subdomains) owned by the same entity (company) with their A records pointed at the same public IP for a single server
[code]...
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Jan 20, 2011
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Aug 17, 2009
Run a script on ServerA which uses a ssh-connection to ServerB to execute a few commands on ServerB. As ServerB only allows login with username+password the whole stuff gets more complex. SSH provides key authentication enabling passwordless login as you probably know. So as stated in many tutorials I did the following:
Quote:
ssh-keygen -t dsa
ssh-copy-id .ssh/id_dsa.pub osr@10.17.120.207
Trying to connect with
ssh osr@10.17.120.207
should now be passwordless but I'm somehow still getting the prompt for the password.here the output from ssh -vvv osr@10.17.120.207
Quote:
OpenSSH_4.1p1, OpenSSL 0.9.7d 17 Mar 2004
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
[code]....
interesting are probably the following lines:
Quote:
debug3: Not a RSA1 key file /users/osr/.ssh/id_dsa.
debug2: key_type_from_name: unknown key type '-----BEGIN'
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Jul 19, 2011
How would you assign a server a public static IP ?
Ok.. I guess to better ask my question... how to assign server public static IP centos? Like for example I am in the router itself.. where would I go to point ip 44.33.33.21. to ?> 192.168.1.4
What would be the most common in the routers?
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Jul 23, 2011
I am running a modem in bridge mode to my server
I edit file /etc/sysconfig/network-scripts/ifcfg-eth0 code...
I do service network restart and get nothing ? No connection... Are there other files I need to edit?
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