jail and networking

Bernt Hansson bah at bananmonarki.se
Wed Feb 20 22:57:30 UTC 2013


2013-02-20 22:17, doug skrev:
>
> On Wed, 20 Feb 2013, Jeff Tipton wrote:
>
>> On 02/20/2013 20:59, Teske, Devin wrote:
>>> On Wed, 20 Feb 2013, Bernt Hansson wrote:
>>>
>>>> On 2013-02-20 19:07, Jeff Tipton wrote:
>>>>> On 02/20/2013 19:42, Bernt Hansson wrote:
>>>>>> On 2013-02-20 17:23, Teske, Devin wrote:
>>>>>>> On Wed, 20 Feb 2013, Bernt Hansson wrote:
>>>>>>>
>>>>>>>> Hello list!
>>>>>>>>
>>>>>>>> I dont seem to get net working in a test jail.
>>>>>>>>
>>>>>>>> These I've tried;
>>>>>>>>
>>>>>>>> ftp, fetch, telnet
>>>>>>>>
>>>>>>>> They time out.
>>>>>>>>
>>>>>>>> Ssh sort of work.
>>>>>>>>
>>>>>>>> 32bit# ssh 10.0.0.3
>>>>>>>> ssh_askpass: exec(/usr/local/bin/ssh-askpass): No such file or
>>>>>>>> directory
>>>>>>>> Host key verification failed.
>>>>>>>>
>>>>>>>> jail is 8.3-STABLE i386 GENERIC
>>>>>>>>
>>>>>>>> host is FreeBSD 8.3-STABLE amd64 GENERIC
>>>>>>>>
>>>>>>>> I'm sure you want more info so just tell me what info.
>>>>>>> Commonly the problem is that you are "jexec'd" into the jail and I
>>>>>>> find that tools like ssh, ftp, telnet, etc. don't work when
>>>>>>> you're in
>>>>>>> the jail via "jexec" but instead what works way better is if you ssh
>>>>>>> into the jail (via the jail'd ssh process of course).
>>>>>>>
>>>>>>> Does that seem to be the case in your situation?
>>>>>> If you mean this sshd  IsJ    0:00,00 /usr/sbin/sshd
>>>>>>
>>>>>> Then no.
>>>>>>
>>>>>> %ssh 10.0.0.10 ssh: connect to host 10.0.0.10 port 22: Operation
>>>>>> timed
>>>>>> out
>>>>>>
>>>>>> I did have an alias on the host to the jail's ip.
>>>>>> Tried to restart the jail it went fine, but now I can't jexec in to
>>>>>> the jail.
>>>>>>
>>>>>> testbox# jexec 1 tcsh
>>>>>> jexec: jail_attach(1): Invalid argument
>>>>>>
>>>>>> Sooo... I'm kind of out of ideas.
>>>>> What does "jls" command say? If you have restarted your jail, it's ID
>>>>> most likely has changed.
>>>> The ID did change, didn't know about that, thank you.
>>>>
>>>> But still, sshd isn't running in the jail
>>>>
>>>> 32bit# ps ax
>>>>     PID  TT  STAT      TIME COMMAND
>>>>    2385  ??  IsJ    0:00,00 sendmail: Queue runner at 00:30:00 for
>>>> /var/spool/clientmqueue (sendmail)
>>>>    2391  ??  SsJ    0:00,00 /usr/sbin/cron -s
>>>>    2464   0  SJ     0:00,01 tcsh
>>>>    2482   0  R+J    0:00,00 ps ax
>>>>
>>>> testbox# ps ax | grep J
>>>>    2385  ??  IsJ    0:00,00 sendmail: Queue runner at 00:30:00 for
>>>> /var/spool/clientmqueue (sendmail)
>>>>    2391  ??  SsJ    0:00,00 /usr/sbin/cron -s
>>>>    2488   0  S+     0:00,00 grep J
>>>>
>>>> testbox is the host.

> Or from the host: sockstat | grep :22. You should see something like
>
>    root     sshd       2016  3  tcp4   192.168.17.15:22       *:*
>
> for each jail

testbox# sockstat | grep :22

bernt    sshd       3541  3  tcp4   10.0.0.3:22           80.x.x.x:25605
root     sshd       3539  3  tcp4   10.0.0.3:22           80.x.x.x:25605
root     sshd       1296  3  tcp6   *:22                  *:*
root     sshd       1296  4  tcp4   *:22                  *:*

The jail has ip 10.0.0.10. There is only one jail.


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