Change host file and command syntax

[GoogleCodeExporter]

Hi, I suggest to give host file a different structure so, for each host, it can 
be possible to pass different ssh options.

simply something like

ip ssh_options
55.33.22.11 -p 12345 -l myuser -i mykey -C
55.33.22.12 -l root

In a lan envirormet this might not be necessesary, but over the Internet, we 
might have server server on non standard port.

Original issue reported on code.google.com by siri...@gmail.com on 17 Mar 2011 at 9:13

[GoogleCodeExporter]

Unfortunately, we've had about three recent suggestions for changes to the 
hosts file format, and it simply won't be possible to accommodate them all.  
Currently you can specify the username and port separately for each host, as 
each line is of the form user@host:port.  Likewise, individual settings can be 
managed by ssh itself (man ssh_config for more details).  Are there any 
critical settings that can't be added using these two mechanisms for 
customization?

Thanks for your interest in using pssh and making it better.

Original comment by amcna...@gmail.com on 17 Mar 2011 at 9:20

[GoogleCodeExporter]

Honestly,I didn't know about this ssh future.
All the options I nedd (user, key, port, compression) can be set in the 
ssh_config file so, for pssh, we could even leave the simple host file list.
Correct me If I'm wrong, but by ssh_config file, we can pass all the options of 
command line. 

On consideration. Watch this ssh_config example:
Host pippo
  User root
  Port 22
  Hostname 192.168.2.153

"pippo" is not a valid dns name. "ssh pippo" works fine because it uses 
"Hostname" option.
So, the pssh host file, should list the host 'pippo' and not '192.168.2.153'.

Or we use a convention: hostname/ip of the pssh host.txt file are the same ho 
"Host" declaration of ssh_config.

Last: in any case, we need a bit of documentation :-)

Original comment by siri...@gmail.com on 18 Mar 2011 at 7:34

[GoogleCodeExporter]

Indeed, giving pssh the same host as in the "Host" declaration of ssh_config 
works well, and it might be helpful to add this to the examples section of the 
man page.  And again, if it's just user and port that need to be specified, 
pssh already allows these in the hosts file, so ssh_config would normally be 
for extra options like compression.

Original comment by amcna...@gmail.com on 18 Mar 2011 at 3:22

[GoogleCodeExporter]

I just added a TIPS section to the man page with a brief description of 
ssh_config.  I'll close this issue for now, but please feel free to reopen it 
if you have any additional thoughts.  Thanks.

Original comment by amcna...@gmail.com on 23 May 2011 at 6:49

• Changed state: Done