remote server access Post: 302151148

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Top Forums Shell Programming and Scripting remote server access Post 302151148 by Smiling Dragon on Thursday 13th of December 2007 04:50:34 PM

12-13-2007

Registered User

That sounds like a job for ssh public keys (as you said), a webserver on the three servers, or automated emails from the three servers.

Which one to go for depends on the type of data and your security concerns (ie what happens if your 'master' server gets compromised? Do you need to guarantee the data has come from who it appears to come from? Do you need to encrypt the data to protect it from snooping?).

Public key exchange gives you two options:
server1-3 to master server: You allow server1,2 and 3 to log onto the master server via public key. This will let them push data onto the master server.
Pros: If your master server gets compromised, you don't lose all other servers. Data is encrypted.
Cons: Any of the servers pushing data will have access to the data from all the other servers (unless you use a different account for each server)

master server gets from server1-3: You allow the master server to log onto all the other servers. This lets the master server pull the data it needs.
Pros: Central management of scheduling etc, the various servers don't have to know about each other and you can protect the data from each server.
Cons: If you lose the master server, it can spread to all other servers.

If you set up a webserver on each of the servers, you can pull the data anonymously. But if you can get the data, anyone can.

You can also have each server send the data to a particular email address on your master server. Just add a | /path/to/processingscript.sh as an aliase for that account and they will be automatically handled as they come in.
Anyone can send a file claiming to be one of your servers though and you'll never know.

Smiling Dragon

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LEARN ABOUT DEBIAN

roarinterconnect

roarinterconnect(1)				      System User's Manual: roarinterconnect				       roarinterconnect(1)

NAME

       roarinterconnect - interconnect two audio servers

SYNOPSIS

       roarinterconnect [OPTIONS]...

DESCRIPTION

       This program can interconnect two audio servers bi- (default) or uni-directional.

OPTIONS

       --server SERVER
	      Set server hostname

       --remote SERVER
	      Set remote server

       --type	TYPE
	      Set type of remote server

       --rate	RATE
	      Set sample rate

       --bits	BITS
	      Set bits per sample

       --chans	CHANNELS
	      Set number of channels

       --codec	CODEC
	      Set the codec

       --help Show this help

       --verbose -v
	      Be verbose

POSSIBLE TYPES

       roar   RoarAudio Server

       esd    EsounD Server

       simple PulseAudio simple protocol

       oss    Open Sound System (OSS) device

       bidir  Connect bidirectional

       filter Use local server as filter for remote server

       transmit
	      Transmit data from local server to remote server

       receive
	      Receive data from remote server

SEE ALSO

       roartips(7), libroar(7), RoarAudio(7).

HISTORY

       For history information see RoarAudio(7).

RoarAudio							   January 2010 					       roarinterconnect(1)