F-17 SSH -

[Terry Polzin]

On Wed, 2012-08-08 at 10:01 -0400, Bob Goodwin - Zuni, Virginia, USA
wrote:
> Replaced F-16/64 with F-17/64 on "box7" and see a problem I seem to
>     have every time I do this.
> 
>     Presently box7 will ssh into box9 but box9 can not get into box7,
> 
>          [root at box9 .ssh]# ssh bobg at 192.168.1.7
>          ssh: connect to host 192.168.1.7 port 22: No route to host
>          root or user,
> 
>          [bobg at box9 ~]$ ssh bobg at 192.168.1.7
>          ssh: connect to host 192.168.1.7 port 22: No route to host
> 
>     sshd is enabled and running on both, I've tried rm'ing "known_hosts"
>     and letting it regenerate, all to no avail.
> 
>     I've seen this with several generations of Fedora [and different
>     equipment] and it's always the same, a few days or weeks later it
>     magically begins to work! All my computers in this room connect to a
>     gigabit switch, [even the switch has been replaced], and our
>     wireless LAN.
> 
>     At times this is a serious inconvenience leading to typing errors, etc.
> 
>     Any ideas what I have missed?
> 
>     Bob
>     .
> 
> 
>     -- 
>     http://www.qrz.com/db/W2BOD
> 
>     box9
> 

Sounds as if one machine doesn't have sshd running on it.  That is
presuming that all the machines are on the same subnet and there is no
IP routing that has to be considered.