Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Invalid RPC login - Webmin

Posted on 2006-11-10
2
2,726 Views
Last Modified: 2013-12-16
Hi,
I am setting up a Webmin cluster, but get "Invalid RPC Login for <server>" when adding servers to the Webmin Server Index. Could someone please tell me the purpose of RPC and how I can resolve this.
Thanks.
0
Comment
Question by:demonzzz
2 Comments
 
LVL 4

Accepted Solution

by:
wbstech earned 250 total points
ID: 17929426
I can't give you a resolution, but here's some info on Webmin and RPC that hopefully will (Full doc available at http://www.webmin.com/modules-printable.html):

---------------

Remote Procedure Calls
Webmin versions 0.82 and above has several common functions for executing code on remote Webmin servers. They are used by some of the standard modules (such as those in the Cluster category) to control multiple servers from a single interface, and may be useful in your own modules as well. These functions, all of which have names starting with remote_, let you call functions, evaluation Perl code, and transfer data to and from other system running Webmin.
Before a 'master' server can make RPC calls to a remote host, it must be registered in the Webmin Servers Index module on the master system. The Link type field must be set to Login via Webmin and a username and password entered. The user specified should be root or admin, as others are not by default allowed to accept RPC calls.

RPC is usually used to call functions in other modules on a remote system, or common functions. This is done with the remote_foreign_call function, but before it can be used remote_foreign_require must be called to load the library for the module that you want to call. This is very similar to calling functions in other local modules with the foreign_ functions, explained in the "Functions in Other Modules" section.
0
 

Author Comment

by:demonzzz
ID: 18044021
Thanks wbstech, not quite a solution but has given me a much better idea of what it does, which i'm sure will help.
Thanks.
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Network Interface Card (NIC) bonding, also known as link aggregation, NIC teaming and trunking, is an important concept to understand and implement in any environment where high availability is of concern. Using this feature, a server administrator …
Setting up Secure Ubuntu server on VMware 1.      Insert the Ubuntu Server distribution CD or attach the ISO of the CD which is in the “Datastore”. Note that it is important to install the x64 edition on servers, not the X86 editions. 2.      Power on th…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

860 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question