Moodle in English: fail to add peer

Moodle networking (MNet)

fail to add peer

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fail to add peer

by Ye Chen - Friday, July 27, 2007, 3:27 AM

I am trying the network things by following the instruction http://docs.moodle.org/en/admin/mnet/peers

When I did set up step 4

On MoodleA go to Admin > Network > Peers - put the URL of MoodleB under "Add New Host" and click Add. It works

then Do the equivalent on MoodleB, when I put the URL of MoodleA under MoodleB Admin>Network >Peers,Click add new, then I got error message

There was a problem retrieving the public key.
Maybe the host does not allow Moodle Networking or the key is invalid.

So I can not add the host of Moodle A to moodle B, where I suppose to check? Both moodle A and Moodle B running moodle 1.82+

Re: fail to add peer

by Katja Krüger - Monday, July 30, 2007, 4:45 PM

I have the same problem, could it be that it has something to do with the expire-date of the key?
When I come to the mentioned site with the error message (admin/mnet/peers.php) there is the strange information that the key expires on 1. january 1970 (on both peers), but on the page admin/mnet/index.php (the settings page), there is a correct value for the expiring date.

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Re: fail to add peer

by Terry Parkes - Sunday, August 19, 2007, 1:02 PM

I have exactly the same problem. I have had at some of the forums around this problem but nobody seems to have come with logical explanation why. This problem looks like it is not finding to other moodle site and therefore not finding the publickey.

Where abouts is this key stored and how does moodle go looking for it?

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Re: fail to add peer

by Leang Chumsoben - Wednesday, August 29, 2007, 11:02 AM

If you are running your Moodle on Windows, OpenSSL might not work correctly unless you add a environment variable called OPENSSL_CONF.

http://moodle.org/mod/forum/discuss.php?d=75556

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Re: fail to add peer

by Leang Chumsoben - Wednesday, August 29, 2007, 11:06 AM

If you are running your Moodle on Windows, OpenSSL might not work correctly unless you add a environment variable called OPENSSL_CONF.

http://moodle.org/mod/forum/discuss.php?d=75556

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Re: fail to add peer

by Leang Chumsoben - Wednesday, August 29, 2007, 11:08 AM

If you are running your Moodle on Windows, OpenSSL might not work correctly unless you add a environment variable called OPENSSL_CONF.

http://moodle.org/mod/forum/discuss.php?d=75556

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Re: fail to add peer

by Martín Langhoff - Thursday, August 23, 2007, 5:44 PM

The servers where the 2 moodle installs are need to be able to talk to each other via http and to see the proper IP address for themselves and for the other server.

This is sometimes hard, for example

On a test server with fake "names" set in /etc/hosts or being accessed over localhost
On machines behind NAT, split-horizon-DNS and similar magic
On machines that are firewalled so that they cannot make outbound http requests
On machines with multiple NICs or IP addresses

This is another FAQ probably. Any takers to build a MNET FAQ?

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Re: fail to add peer

by Joan Codina Filba - Friday, January 11, 2008, 8:55 PM

How I can check that two servers "are able to talk to each other via http and to see the proper IP address for themselves and for the other server"

I have two servers, A and B
I got many problems to connect them: the famous tics when you decide to publish, subscribe a service, werent there for A
At the end looking at A mysql tables I found that the hosts information for the localhost was not correct, so, by hand I arranged it.
Now the tics are there,
From B I can enroll students to A courses and a B's user can roam to A

But A is still ill,
when trying to enrol an A's students to a B's course, I get the following error,
"RPC enrol/mnet/available_courses:ERROR 703:Unable to locate function, or function prohibited for RPC"

Which server does this error? where should that function be located/enabled??

There are too many things that can fail and so little information.....

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Re: fail to add peer

by Joan Codina Filba - Monday, January 21, 2008, 8:48 PM

I try to reply myself:
Its a pity that there are no answeres from the developers...
1: be carefull with your host name:
If you don't put http:// in front of the domanin, some errors will occur
2: Be carefull with your site name
don't put strange characters on it, as it has some problems updating the database. So your site should not be "Your're in Moolde" as the ' will disturb the network
3: Don't change the path of your instal.lation in your server, so dont move it from /moode to / as some tables will have the wrong information.

But still I don't know why from two moodle installations in the same machine One of the installations gives me the error:
"RPC enrol/mnet/available_courses:ERROR 703:Unable to locate function, or function prohibited for RPC."
while the other one connects perfectly
Any help??

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Re: fail to add peer

by Jay S - Saturday, April 19, 2008, 5:13 AM

You figure this out?

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Re: fail to add peer

by Aaron Fulton - Wednesday, May 6, 2009, 5:51 AM

Make sure that you have enabled moodle networking enrollments.
Site administration -> Courses -> Enrollments
Then choose "Moodle networking" and set "allow all courses" to Yes (under moodle networking settings)

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