Unable to ssh openstack instance

Telles Nobrega tenobreg at redhat.com
Sat Jul 20 15:17:23 UTC 2019


Hi, you probably checked this already but it is always good to double check
that you opened the ssh rules on the security group.


On Fri, 19 Jul 2019 at 12:13 Sofia Enriquez <senrique at redhat.com> wrote:

> Hi Manula,
>
> This guide really helps me when testing things with Devstack[1].
> Hope it can help you too.
>
> Sofia
>
> [1]
> https://docs.openstack.org/networking-ovn/latest/contributor/testing.html#booting-vms
>
> On Thu, Jul 18, 2019 at 5:54 PM Slawek Kaplonski <skaplons at redhat.com>
> wrote:
>
>> Hi,
>>
>> It seems that 172.24.4.147 is “fixed IP” of Your instance. What network
>> type are You using there? Usually tenant network is some tunnel network
>> type, like VxLAN or GRE. In such case this network is isolated and You will
>> not have access to it directly from host.
>> You can try to do SSH to such IP address from DHCP or router namespace.
>> DHCP namespace for Your network will be created on node where
>> neutron-dhcp-agent is running and its name will be something like
>> “qdhcp-<network_uuid>”.
>> For router it’s similar, namespace will be where neutron-l3-agent which
>> is hosting Your router is running and name of namespace will be like
>> “qrouter-<router_uuid>”
>>
>> If You connected FIP to the instance, and You have some provider network
>> used as external net (vlan or flat) than such IPs should be probably
>> reachable from Your host - but this depends on Your network configuration
>> on Your host(s).
>>
>> > On 18 Jul 2019, at 09:25, Manula Thantriwatte <
>> manulachathurika at gmail.com> wrote:
>> >
>> > Hi All,
>> >
>> > I'm trying to ssh openstack image I have created using cirros image.
>> But I'm getting following error.
>> >
>> > ssh: connect to host 172.24.4.147 port 22: No route to host
>> >
>> > But when I go to the instance console I'm able to login.
>> >
>> > For the security groups I have enable port 22.
>> >
>> > I have associated floating IP as well.
>> >
>> > How to resolve this?
>> >
>> > Thanks !
>> >
>> > --
>> > Regards,
>> > Manula Chathurika Thantriwatte
>> > phone : (+94) 772492511
>> > email : manulachathurika at gmail.com
>> > Linkedin : http://lk.linkedin.com/in/manulachathurika
>> > blog : http://manulachathurika.blogspot.com/
>> > <Screenshot from 2019-07-18 12-53-25.png><Screenshot from 2019-07-18
>> 12-54-51.png>
>>
>>>> Slawek Kaplonski
>> Senior software engineer
>> Red Hat
>>
>>
>>
>
> --
>
> L. Sofía Enriquez
>
> she/her
>
> Associate Software Engineer
>
> Red Hat PnT <https://www.redhat.com>
>
> IRC: @enriquetaso
> @RedHat <https://twitter.com/redhat>   Red Hat
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>
> --

Telles Nobrega

Senior Software Engineer

Red Hat <https://www.redhat.com/>

tenobreg at redhat.com
@RedHat <https://twitter.com/redhat>   Red Hat
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