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Re: [K12OSN] Beta Fl_TeacherTool 0.71 for K12Linux (LTSP5)



On Mon, Nov 9, 2009 at 9:32 AM, Jon Williams <jon williams52 gmail com> wrote:
> It looks like I missed the configuration change with the
> /opt/ltsp/i386/etc/ssh/sshd_config file.  I thought I was being pretty
> meticulous but I missed that step.
>
> Something still isn't right however in that I had to set
> PasswordAuthentication to yes instead of no in order to get the tool
> to come up.  But at this point I'm able to remote in and control my


the sshd_config setting of (PasswordAuthentication no ) should not
affect fl_tt. It was only put into the docs to prevent kids from being
able to brute force the root password on the clients since they are
running sshd.

> thin client's sessions so that's progress.  It's also about 1000x
> faster than iTalc so I'm pretty happy.
>

That's great to hear. I have not tried iTalc but last I checked it did
not have internet blocking.

Does everything work including internet access blocking? I forgot to
mention, I have only tried Internet access blocking with the standard
2 nic setup. Not sure if it will work with a 1 nic setup.

If you get that iptables error again try closing fl_tt and starting it
up again. If you manually killed fl_tt then try starting it and
closing it to reset the firewall settings.

>
>
> On Mon, Nov 9, 2009 at 9:29 AM, Jon Williams <jon williams52 gmail com> wrote:
>> Thanks Robert for the update.  I've been looking forward to using this.
>>
>> I'm having a weird problem though.  I have my test server up and one
>> thin client connected.  The first time I ran the tool it froze up on
>> me. I killed it off, rebooted for good measure and then tried to run
>> it again.  I receive the following message when running it:
>>
>> [root localhost ~]# fl_teachertool &
>> [3] 3688
>> [root localhost ~]# iptables: No chain/target/match by that name
>> PING 172.31.100.101 (172.31.100.101) 56(84) bytes of data.
>>
>> --- 172.31.100.101 ping statistics ---
>> 1 packets transmitted, 1 received, 0% packet loss, time 0ms
>> rtt min/avg/max/mdev = 0.339/0.339/0.339/0.000 ms
>> The authenticity of host '172.31.100.101 (172.31.100.101)' can't be established.
>> RSA key fingerprint is 38:76:26:b2:cd:2c:ae:30:b1:15:2b:f0:96:3a:77:3b.
>> Are you sure you want to continue connecting (yes/no)?
>>
>> When I type yes it echos y to the screen and that's all I get.  The
>> application itself doesn't launch.  Anyone have any ideas of what I
>> missed in the install?
>>
>>
>> On Fri, Nov 6, 2009 at 12:53 PM, Robert Arkiletian <robark gmail com> wrote:
>>> On Fri, Nov 6, 2009 at 6:07 AM, Lance Jahnig <jahnigl hotmail com> wrote:
>>>> --------------------------------------------------
>>>> From: "Henry Dwa" <henrydwa gmail com>
>>>> Sent: Thursday, November 05, 2009 7:55 PM
>>>> To: "Support list for open source software in schools." <k12osn redhat com>
>>>> Subject: Re: [K12OSN] Beta Fl_TeacherTool 0.71 for K12Linux (LTSP5)
>>>>
>>>>> Hello all :)
>>>>>
>>>>> I installed FL_TeacherTool 0.71 in K12-F10 in our lab. I'm not Linux
>>>>> expert, but i try to follow the instruction with no error.
>>>>>
>>>>> After installation i try to run fl_teachertool, and the window open.
>>>>> But, I can't use snapshot' and 'control' function. Error log sounds
>>>>> like this :
>>>>>
>>>>> ------------------------------------------------
>>>>> PING 172.31.100.153 (172.31.100.153) 56(84) bytes of data.
>>>>>
>>>>> --- 172.31.100.153 ping statistics ---
>>>>> 1 packets transmitted, 1 received, 0% packet loss, time 0ms
>>>>> rtt min/avg/max/mdev = 0.247/0.247/0.247/0.000 ms
>>>>>
>>>>> ssh: connect to host 172.31.100.153 port 22: Connection refused
>>>>> ssh: connect to host 172.31.100.153 port 22: Connection refused
>>>>> lost connection
>>>>>
>>>>> Fri Nov  6 08:53:16 2009
>>>>> main:        unable connect to socket: Connection refused (111)
>>>>> ------------------------------------------------
>>>>>
>>>>> Please help me :)
>>>>> Thankyou for the helps
>>>>>
>>>>> Regards,
>>>>> Dwa - Indonesia
>>>>>
>>>>> _______________________________________________
>>>>
>>>> I had a similar problem on Fedora 11.  I started the sshd service on the
>>>> server in the chroot so it could create the keys.  Then it was able to start
>>>> on all the terminals.
>>>>
>>>
>>> Okay I added "service sshd start" to the install doc
>>>
>>> yum install openssh-server
>>> chkconfig sshd on
>>> service sshd start
>>> umount /proc
>>> exit
>>>
>>> Hopefully that will fix the issue
>>>
>>> --
>>> Robert Arkiletian
>>> Eric Hamber Secondary, Vancouver, Canada
>>>
>>> _______________________________________________
>>> K12OSN mailing list
>>> K12OSN redhat com
>>> https://www.redhat.com/mailman/listinfo/k12osn
>>> For more info see <http://www.k12os.org>
>>>
>>
>
> _______________________________________________
> K12OSN mailing list
> K12OSN redhat com
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see <http://www.k12os.org>
>



-- 
Robert Arkiletian
Eric Hamber Secondary, Vancouver, Canada


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