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Operating Systems AIX Rcp error while transferring files Post 302882585 by bakunin on Wednesday 8th of January 2014 03:55:29 AM
Old 01-08-2014
Quote:
Originally Posted by Portabello
i am sorry i couldn't understand how the local copy can be done ? i'm also not familiar with daemon and how to make sure if it is going to receive rcp or not
A "daemon" in Unix is generally just a background job, usually one which is relevant for the system. Read more in wikipedia about it.

What DGPickett tried to tell was: r-commands transfer files without any encryption, therefore everybody listening on the "same wire" (=every network card in the same subnet) could read them too as they are transferred. They also handle their communication, even up to passwords, unencrypted. This is why most have shifted from r-commands to other means of achieving the same but with encryption of the transported data. This in most cases is "ssh" to replace any remote connection (telnet, rsh, remsh, rlogin, ....) and either "sftp" or "scp" to replace file transfer (ftp, rcp, ...).

When you install "scp", the basic command to transfer a file would be:

Code:
scp userA@hostA:/path/to/sourcefile userB@hostB:/path/to/target

which reads "sourcefile" as userA at hostA and then transfers it to hostB, where it attempts to write it as "target" using user-ID "userB". DGPickett suggests (and rightly so) that, when you install this, you start with transferring a file locally:

Code:
scp userA@hostA:/path/to/testfile [userA|userB]@hostA:/path/to/target

Where "hostA" is a short hostname first, then a long hostname:

Code:
scp me@host:/tmp/test me@host:/tmp/target
scp me@host.network.com:/tmp/test me@host.network.com:/tmp/target

This makes sure name resolution is working correctly, at least for this host. Only then attempt to transfer the file to a remote destination.

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
 

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aseqnet(1)						      General Commands Manual							aseqnet(1)

NAME
aseqnet - ALSA sequencer connectors over network SYNOPSIS
aseqnet [remotehost] DESCRIPTION
aseqnet is an ALSA sequencer client which sends and receives event packets over network. Suppose two hosts connected by network, hostA as a server and hostB as a client. The ALSA sequencer system must be running on both hosts. For creating the server port, run the following on hostA: hostA% aseqnet sequencer opened: 128:0 Then a user client 128 with port 0 was opened on hostA. (The client number may vary.) For creating the (network-)client port, run aseqnet with the hostname of the server: hostB% aseqnet hostA sequencer opened: 132:0 Now all events sent to hostA:128:0 are transferred to hostB:132:0, and vice versa. The ports created by aseqnet can be connected arbitrary to other sequencer ports via aconnect(1). For example, to connect hostB:132:0 to a MIDI output device 65:0: hostB% aconnect 132:0 65:0 Then events to hostA:128:0 will be delivered to hostB:65:0. The following command plays MIDI on hostB. hostA% pmidi -p 128:0 foo.mid The multiple clients may exist simultaneously. If hostC is connected as a client to hostA, events from from hostA are sent to all con- nected network clients, i.e. hostB and hostC. However, only one connection is allowed from a client to a server. To disconnect network, stop all clients before server by ctrl-C or sending signal to them. The server will automatically quit. OPTIONS
-p port Specify the TCP port number or TCP service name. -s addr Subscribe to the given address for read automatically. -d addr Subscribe to the given address for write automatically. -v Verbose mode. SEE ALSO
aconnect(1), pmidi(1) AUTHOR
Takashi Iwai <tiwai@suse.de>. January 1, 2000 aseqnet(1)
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