[systemd-devel] systemd services via SSH (-H key)

Reindl Harald h.reindl at thelounge.net
Sat Oct 24 08:03:39 PDT 2015


well, you can argue with all sorts of workarounds, lacking something 
like specify a port for a tcp connection is a fractal of bad design

Am 24.10.2015 um 16:58 schrieb Andy Pieters:
> Exactly so for Reindl's use scenario, considering  5 hosts all on the
> same ip address but with different ports, called
> host1,host2,host3,host4, and host5:
>
> Either system-wide in ssh_config, or per user in ~/.ssh/config:
>
> # define common settings for all five hosts
> Host host1 host2 host3 host4 host5
>      HostName mynatedhost.com <http://mynatedhost.com>
>
> # Then match each individually to set the correct port
>
> Host host1
>      Port 8822
>
> Host host2
>      Port 8823
>
> Host host3
>      Port 8824
>
> Host host4
>      Port 8825
>
> Host host5
>      Port 8826
>
> On 24 October 2015 at 15:17, Andrei Borzenkov <arvidjaar at gmail.com
> <mailto:arvidjaar at gmail.com>> wrote:
>
>     24.10.2015 16:57, Reindl Harald пишет:
>
>
>         Am 24.10.2015 um 15:04 schrieb Lennart Poettering:
>
>             Well, I am pretty sure using "#" as separator for that is a
>             really
>             untypical syntax. I am not sure it's really such a big
>             improvement
>             supporting such a syntax over simply asking people to put
>             the right
>             statement in ~/.ssh/config... Note thta the stuff in
>             ~/.ssh/config is
>             really powerful as you can actually define wildcards and
>             stuff...
>
>
>         but it's pretty useless in cases where you have a dozen virtual
>         machines
>         inside a NAT port forwarded on a router because only a single
>         public IP
>         - in that case you need to define a port for the connection
>
>
>     Host in ssh.config is matched against host on command line; inside
>     you can set HostName and Port which define real connection end
>     point. So you may have multiple virtual hosts with different port
>     each referring to the same real IP.
>
>         i had such a standard VMware NAT with single ports forwarded for
>         many
>         years before i gave up with notebooks and changed my whole IT to two
>         machines connected via VPN's and static routes

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