ssh in network
Michael Havens
bmike1 at gmail.com
Mon Apr 2 23:08:32 MST 2012
server is installed on all of them.
On Mon, Apr 2, 2012 at 2:45 PM, Dazed_75 <lthielster at gmail.com> wrote:
> server needs to be installed on any and all machines you want to ssh TO.
> Server is the component/daemon that listens for a request to connect.
>
> On Mon, Apr 2, 2012 at 12:55 PM, Michael Havens <bmike1 at gmail.com> wrote:
>
>> guess what I just found out.... openssh-server wasn't installed on the
>> laptop. So I installed it and now netstat has the same line on it that
>> says port 22
>>
>>
>> sudo netstat -antp | grep 22
>> tcp 0 0 0.0.0.0:22 0.0.0.0:*
>> LISTEN 433/sshd
>>
>> However, I still can't ssh to the ubuntu. But I scan ssh from the ubuntu
>> to the mint. Yipee!
>>
>>
>>
>> On Mon, Apr 2, 2012 at 9:26 AM, Michael Havens <bmike1 at gmail.com> wrote:
>>
>>> On Sun, Apr 1, 2012 at 7:28 PM, Lisa Kachold <lisakachold at obnosis.com>
>>> wrote:
>>> >Are you colorblind?
>>> ^---------------------------------- only slightly
>>>
>>> >respond inline.
>>>
>>> ^---------------------------------------not sure what you mean.
>>>
>>> >Let's address each item until we resolve things:
>>> On Sun, Apr 1, 2012 at 5:49 PM, Michael Havens <bmike1 at gmail.com>
>>> wrote:
>>> >>>A route add command is not persistent past a reboot or network
>>> restart.
>>> >>It seems to have been. I rebooted and still can't ssh from the laptop
>>> to the ubuntu.
>>> >But you couldn't also ssh BEFORE you did the route add so these are two
>>> different things.
>>> Yes I could. I could ssh from the laptop to the ubuntu (printserver)
>>> until I issued the command ' sudo ip route add 192.168.1.0/24<http://192.168.0.1/24>dev eth0' on the ubuntu on the advice of my google search. Then I tried to
>>> delete it and add the proper route (192.168.0.1) but that didn't help any.
>>>
>>> >Take down your wlan (are you using wicd?)
>>>
>>> ^-----------Wireless is now off. I don't know what Mint uses... it
>>> doesn't say.
>>> >>>Verify that both boxes have a listening ssh daemon:
>>>
>>> >># sudo netstat -antp | grep 22
>>>
>>> >>tcp 0 0 0.0.0.0:22 0.0.0.0:*
>>> LISTEN 433/sshd
>>>
>>> >><ubuntu>
>>>
>>> >>tcp 0 0 0.0.0.0:139 0.0.0.0:*
>>> LISTEN 12243/smbd
>>>
>>> >>tcp 0 0 0.0.0.0:445 0.0.0.0:*
>>> LISTEN 12243/smbd
>>>
>>> >><laptop>
>>>
>>> >Good you have sshd listening on port 22 on ubuntu.
>>>
>>> >You do NOT have sshd (daemon) listening on your laptop.
>>>
>>> >Be sure you have started it if you want to ssh to the laptop from
>>> ubuntu:
>>>
>>> ># sudo /etc/init.d/ssh start
>>>
>>> >In order to make sure ssh starts at boot in Ubuntu:
>>>
>>> ># sudo update-rc.d ssh defaults <-------------done
>>>
>>> >Reference: https://help.ubuntu.com/community/UbuntuBootupHowto
>>>
>>> >>Make sure you haven't installed DenyHosts or iptables that limits your
>>> connections:
>>>
>>> >># locate Deny |more
>>>
>>> >># sudo iptables-save |more
>>>
>>> >sudo locate Deny|more <------------------no respose
>>>
>>> >sudo locate iptables-save|more
>>>
>>> >/sbin/iptables-save
>>>
>>> >/usr/share/man/man8/iptables-save.8.gz
>>>
>>> >enter
>>>
>>> ># sudo iptables-save
>>>
>>> >You are looking to see if your iptables is up and configured to
>>> firewall ssh. Dump the response in here.
>>>
>>> bmike1 at Michaels-PC:~$ sudo locate iptables-save
>>> /sbin/iptables-save
>>> /usr/share/man/man8/iptables-save.8.gz
>>> bmike1 at Michaels-PC:~$
>>>
>>>
>>> >Oops, sorry wrong link! ddclient is for opendns dynamic dns entries,
>>> that logs into your provider and resets a public ip when needed. Turn it
>>> down for now:*
>>> # sudo /etc/init.d/ddclient stop*
>>>
>>> ^-----------------done
>>>
>>>
>>> >Here's how to set it up (once you get ssh setup); it requires an
>>> opendns account.
>>> >http://ubuntuforums.org/showthread.php?t=1264710
>>> <http://ubuntuforums.org/showthread.php?t=1264710>
>>> ^--if you can remember please remind me later<http://ubuntuforums.org/showthread.php?t=1264710>
>>>
>>> <http://ubuntuforums.org/showthread.php?t=1264710>
>>> >your system is updated, if it runs? Correct?
>>> ^------------ Correct
>>>
>>> >Check your /etc/nsswitch.conf file to be sure it has
>>> >"hosts: files dns" Reference:
>>> http://www.faqs.org/docs/securing/chap6sec71.html
>>> I'm not sure what you want here. Here is the file:
>>> # /etc/nsswitch.conf
>>> passwd: compat
>>> group: compat
>>> shadow: compat
>>> hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4
>>> networks: files
>>> protocols: db files
>>> services: db files
>>> ethers: db files
>>> rpc: db files
>>> netgroup: nis
>>>
>>> >Then ping each server before trying to reconnect with ssh.<--- they
>>> ping both ways.
>>>
>>> >I am pretty sure that this will work now that you have them both on the
>>> same network. Be sure you don't
>>> >have any iptables running denying your port 22 on both servers!
>>> iptables -L doesn't have any deny rules in it
>>>
>>> I don't see any deny rules in my iptables.
>>> --
>>> :-)~MIKE~(-:
>>>
>>
>>
>>
>> --
>> :-)~MIKE~(-:
>>
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>
>
>
> --
> Dazed_75 a.k.a. Larry
>
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--
:-)~MIKE~(-:
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