webadmin-devel — The webmin development mailing list

Re: Webmin RPC

[Joe C. <jo...@sw...>]

The two pence version:

I am of two minds on things like this.  On one hand, using standardized 
and heavier protocols (heavier merely in the sense of the implementation 
of the protocol--not necessarily that the communications are heavier or 
more taxing on the network or the machines) leads to Webmin being less 
'standalone'.  It will need other perl modules--against the Webmin 
rules, generally.  On the other hand, it would allow integration of 
Webmin with things that may not be 'Webmin-ified'...and potentially 
leverage existing development efforts in Webmin into less redundant 
efforts.  Modules save time--I use them all the time in my perl 
programming and I really couldn't be very productive without them (I'm a 
rank amateur at many complex Perl topics).

The longer version:

I am constanty torn between this dichotomy in general--not just the 
specific RPC case.  The problem of, balancing code reuse with Webmin 
usability.  If Webmin used a standard web template system (TT2, etc.) 
the GUI could break free of the constraints of the current 
half-templated and half-hardcoded system, but then everyone has to 
install TT2 before using Webmin.  Integration is difficult if not 
impossible, and that extra labor takes away a primary motivation for 
code reuse (i.e. saving Jamie from having to spend time developing a 
template system or an RPC system or whatever).

The negatives (the primary one being, everyone has to install a bunch of 
extra perl modules) don't bother me in the least.  Me and cpanflute got 
this deal going--anything from CPAN that I can build without any hassle 
I can make a package that goes into my default system kickstart install 
in a matter of minutes.  Maybe this isn't a deal casual users are 
willing to make.  So I would happily encourage Jamie to make Webmin less 
standalone, if it will add functionality, flexibility, and give Jamie 
more time that would have been spent reinventing wheels.  I'd probably 
make enemies of Webmin users, though...

That said, XML-RPC is one of those that might just be a no-brainer.  It 
would be transparent to folks doing casual Webmin work (i.e. they only 
work directly on a single machine) and would give those of us with 
nerdier tendencies a standardized way to link into a variety of systems. 
  There will probably still be a few folks for whom this would be a 
negative--folks doing embedded installs of Webmin, perhaps?  But they've 
got to strip Webmin to the bone anyway, so this wouldn't be any major 
hurdle for them, I wouldn't think.

So, the summary: I don't know.  I can't make up my mind.  I enjoy 
ranting about it from both sides.

Wil Cooley wrote:
> I've been thinking about it a bit lately and wanted to know what
> anyone else thought about this: Webmin uses a "proprietary" RPC
> mechanism (I say "proprietary" because it's not really a standard;
> not because it's locked away by copyright or whatnot) and was
> wondering if it might not be possible or desirable to re-work the
> HTML-RPC mechanism to use a "standardized" XML-RPC mechanism.
> There are Perl modules (and modules for other languages) for
> developing XML-RPC clients and servers; so it might be nice to be
> able to develop client-applications or non-Webmin-integrated web
> applications using the interface.  Has anyone else considered this
> or agree with me?
> 
> Wil
-- 
Joe Cooper <jo...@sw...>
http://www.swelltech.com
Web Caching Appliances and Support

Re: DNS Problem

[Jamie C. <jca...@we...>]

> karthikeyan wrote:
> 
> Hi,
> 
>   I have successfully installed Webmin in our Redhat Linux 7.1 version using rpm bundle (webmin
> 0.92) provided in the webmin site.  I am quite happy with all its features.  But i encountered on
> major problem - I was able to create a new master zone under Bind 8 DNS Server.  When i go inside
> and try to add new Accounts or Name Server or Mail Server, it doesn't add's up and doesn't even
> produce errors whereas I am able to do that for existing master zone under Bind 8 DNS Server.
> 
>   Any explanation for this would be greatly appreciated.

You should try installing webmin 0.93, along with the latest updates from
http://www.webmin.com/updates.html . That will fix this problem ..

 - Jamie

Webmin RPC

[Wil C. <wc...@na...>]

I've been thinking about it a bit lately and wanted to know what
anyone else thought about this: Webmin uses a "proprietary" RPC
mechanism (I say "proprietary" because it's not really a standard;
not because it's locked away by copyright or whatnot) and was
wondering if it might not be possible or desirable to re-work the
HTML-RPC mechanism to use a "standardized" XML-RPC mechanism.
There are Perl modules (and modules for other languages) for
developing XML-RPC clients and servers; so it might be nice to be
able to develop client-applications or non-Webmin-integrated web
applications using the interface.  Has anyone else considered this
or agree with me?

Wil
--=20
W. Reilly Cooley                           wc...@na...
Naked Ape Consulting                        http://nakedape.cc
irc.linux.com                                     #orlug,#lnxs

The older I grow, the more I distrust the familiar doctrine that age
brings wisdom.
		-- H.L. Mencken

DNS Problem

[karthikeyan <kar...@as...>]

Hi,

  I have successfully installed Webmin in our Redhat Linux 7.1 version =
using rpm bundle (webmin 0.92) provided in the webmin site.  I am quite =
happy with all its features.  But i encountered on major problem - I was =
able to create a new master zone under Bind 8 DNS Server.  When i go =
inside and try to add new Accounts or Name Server or Mail Server, it =
doesn't add's up and doesn't even produce errors whereas I am able to do =
that for existing master zone under Bind 8 DNS Server. =20

  Any explanation for this would be greatly appreciated.

  You can contact me at : kar...@as...

  Regards,

karthikeyan.

Re: webmin and STDERR

[<tb...@gr...>]

Hi:
  thanks a lot!!!
  now i know what to do with my programs :D


> tb...@gr... wrote:
>>
>> Hi:
>>    i m writing a small webmin program with mysql & perl-DBI.
>>    i found that if  perl-DBI raise some error message then
>>    the rest page of webmin will disappear.
>>    so i try to print something myself to STDERR, and it stops rest
>>    pages of webmin.
>>    how can i show STDERR messages to webmin pages?
>>    thanks for ur help!!!
>
> The problem here is that when webmin is started at boot time from
> an init script on some operating systems, STDERR is not available
> so any webmin CGI that prints to it will immediately die with a
> SIGPIPE error. This can be very annoying, and has caused several
> problems with webmin in the past ..
>
> If you want to see stuff that gets printed to STDERR (useful for
> debugging purposes), the solution is to login as root and run
> /etc/webmin/stop ; /etc/webmin/start . If you are calling some library
> or program that may write to STDERR, your perl code should have
> the line  open(STDERR, ">/dev/null");  somewhere at the top, so that it
> doesn't die unexpectledy.
>
> - Jamie
>
> -
> Forwarded by the Webmin development list at web...@we... To
> remove yourself from this list, go to
> http://lists.sourceforge.net/lists/listinfo/webadmin-devel

Re: webmin and STDERR

[Jamie C. <jca...@we...>]

tb...@gr... wrote:
> 
> Hi:
>    i m writing a small webmin program with mysql & perl-DBI.
>    i found that if  perl-DBI raise some error message then
>    the rest page of webmin will disappear.
>    so i try to print something myself to STDERR, and it stops rest pages
>    of webmin.
>    how can i show STDERR messages to webmin pages?
>    thanks for ur help!!!

The problem here is that when webmin is started at boot time from
an init script on some operating systems, STDERR is not available
so any webmin CGI that prints to it will immediately die with a
SIGPIPE error. This can be very annoying, and has caused several
problems with webmin in the past ..

If you want to see stuff that gets printed to STDERR (useful for
debugging purposes), the solution is to login as root and run
/etc/webmin/stop ; /etc/webmin/start . If you are calling some library
or program that may write to STDERR, your perl code should have
the line  open(STDERR, ">/dev/null");  somewhere at the top, so that
it doesn't die unexpectledy.

 - Jamie

webmin and STDERR

[<tb...@gr...>]

Hi:
   i m writing a small webmin program with mysql & perl-DBI.
   i found that if  perl-DBI raise some error message then
   the rest page of webmin will disappear.
   so i try to print something myself to STDERR, and it stops rest pages
   of webmin.
   how can i show STDERR messages to webmin pages?
   thanks for ur help!!!

Regards,
tbsky

changepass

[Bharat K. N. <bha...@ex...>]

Hello sir,
                        i have installed the webmin 0.90 version from a
tar file.it is working fine.
But i am unable to change the password of admin through this s/w.I can
change without login through the console by typing:-
        "/home/webmin-0.90/changepass.pl   /etc/webmin admin foo "
But if i have to change the same through the application how can i????


--
Bharat Kumar Nayyar
Exaband(India) PRIVATE LIMITED,
24,shantiniketan,
East Marredpally,
Secunderabad-26,
India.

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Where Can I see the password to be encrypted?

[wade <51...@21...>]

IEhlbGxvIGV2ZXJ5IG9uZSwNCiANCiAgICBJIHdhbnQgdG8gcmVmZXJlbmNlIHRoZSB3YXkgdGhh
dCBjaGFuZ2UgdXNlcidzIHBhc3N3b3JkIGluIFdlYm1pbix0aG9zZSBwYXNzd29yZCBvbiBteSBs
aW51eCBzeXN0ZW0gaXMgZW5jcnlwdCB3aXRoIE1ENSAuIEhvdyBjYW4gSSBtYWtlIGEgcGllY2Ug
b2YgY29kZSB0aGF0IGNhbiBkbyBwYXNzd29yZC1jaGVja2luZz8gDQogICAgSXMgdGhvc2UgY29k
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aWZmZXJlbnQgcHJpdmlsZWdlcywgc28geW91IGhhdmUgdG8gYWx3YXlzIGdpdmUgb3V0IHRoZSBk
aWZmZXJlbnQgYWNjb3VudCBhbmQgcGFzc3dvcmQgdG8gY29uZmlndXJlIHNvbWUgc3BlY2lmaWMg
c2VydmljZSwgcm9vdCBpcyBmb3JiaWRkZW4sIGhvdyBjYW4gcnVuIHRoZSBkaWZmZXJlbnQgd2Vi
bWluIG1vZHVsZSB1bmRlciB0aGUgZGlmZmVyZW50IGFjY291bnQ/DQoNCiAgIElzIGFueWJvZHkg
Y2FuIGdpdmUgb3V0IHNvbWUgZGVzY3JpcHRpb24/DQoNCkJlc3QgVGhhbmtzDQogDQogV2FkZQ0K
IA0KDQo=

Re: webmin categories

[Joe C. <jo...@sw...>]

Wil Cooley wrote:

> Also Sprach Joe Cooper <jo...@sw...> on Fri, Feb 22, 2002 at 11:55:16PM PST
> 
>>Wil Cooley wrote:
>>
>>
>>>Also Sprach Joe Cooper <jo...@sw...> on Fri, Feb 22, 2002 at 09:52:33PM PST
>>>
>>>
>>>>Remove, disable, or move to another category all of the modules in the 
>>>>category you'd like to get rid of.  The list is dynamically generated 
>>>>based on what the modules you have want to be a part of (this is 
>>>>configured in the module.info file).
>>>>
>>>>
>>>Are you sure about that?  I seem to recall when I started writing
>>>a test module in a "Test" category, but it ended up in the "Others"
>>>category.  Yeah, I looked at it and that's what happens.
>>>
>>Nope.  You're wrong.  ;-)
>>
>>Actually, I didn't explain the situation fully because he wants to 
>>remove a category, not add one.  To add a category you've got to add 
>>information to the language files.  Edit your lang/en file in the Webmin 
>>root directory to include your creatively named Test category, like so:
>>
>>category_test=Test
>>
>>You're done.  So, yep, I'm sure about what I said (the category tabs are 
>>generated based on what categories the modules available want to be 
>>in--I just left out the bit about that category having to be configured 
>>elsewhere).
>>
> 
> Ah, that explains why my test module always ended up in the
> "Others" category.  Thanks.

You're welcome, Wil.  I should confess I had to do a little grepping on 
the Webmin directory to figure out exactly how Jamie was handling 
categories to prove myself unwrong.  ;-)

I was hoping your Mencken sig wasn't true of my answer "simple, neat and 
wrong."
-- 
Joe Cooper <jo...@sw...>
http://www.swelltech.com
Web Caching Appliances and Support

Re: webmin categories

[Wil C. <wc...@na...>]

Also Sprach Joe Cooper <jo...@sw...> on Fri, Feb 22, 2002 at 11:55:16=
PM PST
> Wil Cooley wrote:
>=20
> > Also Sprach Joe Cooper <jo...@sw...> on Fri, Feb 22, 2002 at 09:5=
2:33PM PST
> >=20
> >>Remove, disable, or move to another category all of the modules in the=
=20
> >>category you'd like to get rid of.  The list is dynamically generated=
=20
> >>based on what the modules you have want to be a part of (this is=20
> >>configured in the module.info file).
> >>
> >=20
> > Are you sure about that?  I seem to recall when I started writing
> > a test module in a "Test" category, but it ended up in the "Others"
> > category.  Yeah, I looked at it and that's what happens.
>=20
> Nope.  You're wrong.  ;-)
>=20
> Actually, I didn't explain the situation fully because he wants to=20
> remove a category, not add one.  To add a category you've got to add=20
> information to the language files.  Edit your lang/en file in the Webmin=
=20
> root directory to include your creatively named Test category, like so:
>=20
> category_test=3DTest
>=20
> You're done.  So, yep, I'm sure about what I said (the category tabs are=
=20
> generated based on what categories the modules available want to be=20
> in--I just left out the bit about that category having to be configured=
=20
> elsewhere).

Ah, that explains why my test module always ended up in the
"Others" category.  Thanks.

Wil
--=20
W. Reilly Cooley                           wc...@na...
Naked Ape Consulting                        http://nakedape.cc
irc.linux.com                                     #orlug,#lnxs

For every complex problem, there is a solution that is simple, neat, and wr=
ong.
		-- H. L. Mencken

Re: webmin categories

[Joe C. <jo...@sw...>]

Wil Cooley wrote:

> Also Sprach Joe Cooper <jo...@sw...> on Fri, Feb 22, 2002 at 09:52:33PM PST
> 
>>Remove, disable, or move to another category all of the modules in the 
>>category you'd like to get rid of.  The list is dynamically generated 
>>based on what the modules you have want to be a part of (this is 
>>configured in the module.info file).
>>
> 
> Are you sure about that?  I seem to recall when I started writing
> a test module in a "Test" category, but it ended up in the "Others"
> category.  Yeah, I looked at it and that's what happens.

Nope.  You're wrong.  ;-)

Actually, I didn't explain the situation fully because he wants to 
remove a category, not add one.  To add a category you've got to add 
information to the language files.  Edit your lang/en file in the Webmin 
root directory to include your creatively named Test category, like so:

category_test=Test

You're done.  So, yep, I'm sure about what I said (the category tabs are 
generated based on what categories the modules available want to be 
in--I just left out the bit about that category having to be configured 
elsewhere).
-- 
Joe Cooper <jo...@sw...>
http://www.swelltech.com
Web Caching Appliances and Support

Re: webmin categories

[Wil C. <wc...@na...>]

Also Sprach Joe Cooper <jo...@sw...> on Fri, Feb 22, 2002 at 09:52:33=
PM PST
> Remove, disable, or move to another category all of the modules in the=20
> category you'd like to get rid of.  The list is dynamically generated=20
> based on what the modules you have want to be a part of (this is=20
> configured in the module.info file).

Are you sure about that?  I seem to recall when I started writing
a test module in a "Test" category, but it ended up in the "Others"
category.  Yeah, I looked at it and that's what happens.

Wil
--=20
W. Reilly Cooley                           wc...@na...
Naked Ape Consulting                        http://nakedape.cc
irc.linux.com                                     #orlug,#lnxs

For every complex problem, there is a solution that is simple, neat, and wr=
ong.
		-- H. L. Mencken

Re: webmin categories

[Joe C. <jo...@sw...>]

Remove, disable, or move to another category all of the modules in the 
category you'd like to get rid of.  The list is dynamically generated 
based on what the modules you have want to be a part of (this is 
configured in the module.info file).

Support wrote:

> hello,
> 
> I am wanting to remove a few of the default categories from webmin.
> defaults are:  "webmin" "servers" "hardware",  etc...  I am not sure where
> the file that controls the the categories is.  what directory or file do I
> need to alter?
> 
> Thanks,
> 
> Diego

-- 
Joe Cooper <jo...@sw...>
http://www.swelltech.com
Web Caching Appliances and Support

webmin categories

[Support <su...@ea...>]

hello,

I am wanting to remove a few of the default categories from webmin.
defaults are:  "webmin" "servers" "hardware",  etc...  I am not sure where
the file that controls the the categories is.  what directory or file do I
need to alter?

Thanks,

Diego

Where Can I see the password to be encrypted?

[wade <51...@21...>]

SGVsbG8gZXZlcnkgb25lLA0KDQogICBJIHdhbnQgdG8gcmVmZXJlbmNlIHRoZSB3YXkgdGhhdCBj
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Re: simple module example?

[Joe C. <jo...@sw...>]

This is exceedingly easy to do:

Follow the instructions in the Writing Webmin Modules documentation on 
the Webmin site (i.e. set up the directory with an icon, module.info, etc.).

Then create an index.cgi file that either calls your command, or 
performs the actions you want performed (if more than one command).  You 
can use perl's system() function or backticks to execute system commands.

I'm not sure what else to tell you, short of writing it for you.  It is 
a three hour job, even if you don't know perl and have never written a 
module for Webmin before (it's a 15 minute job if you know perl and have 
written modules before).

Support wrote:

> Hello,
> 
>  
> 
> I am wanting to build a simple module,  in which, a user presses an icon 
> and and a command is executed on a unix box.
> 
>  
> 
> example:  (User) Presses "Execute" Icon -  pressing "Execute"  should be 
> programmed for directory  "/usr/local/execute/"  and "./fire"  begins 
> the "Execution"
> 
>  
> 
> on a unix box:  user simply types:  "cd /usr/local/execute/"  and "./fire" 
> 
>  
> 
> Can someone help me with the following above example. 
> 
> Thanks in Advance!!


-- 
Joe Cooper <jo...@sw...>
http://www.swelltech.com
Web Caching Appliances and Support

simple module example?

[Support <su...@ea...>]

Hello,

I am wanting to build a simple module,  in which, a user presses an icon =
and and a command is executed on a unix box.

example:  (User) Presses "Execute" Icon -  pressing "Execute"  should be =
programmed for directory  "/usr/local/execute/"  and "./fire"  begins =
the "Execution"

on a unix box:  user simply types:  "cd /usr/local/execute/"  and =
"./fire" =20

Can someone help me with the following above example. =20


Thanks in Advance!!

Diego

Re: feature requestion - file manager

[Jamie C. <jca...@we...>]

Terry Davis wrote:
> 
> It would be nice if the file manager showed the full time and date for
> each file and not change the older it gets.

It could be easily added, but on most displays the column wouldn't be
wide enough to show the full date and time.. that's why I had to convert
it to the kind of short form that  ls -l   uses.

 - Jamie

feature requestion - file manager

[Terry D. <td...@bi...>]

It would be nice if the file manager showed the full time and date for 
each file and not change the older it gets.

-- 
Terry Davis
Systems Administrator
BirdDog Solutions, Inc.
(402) 829-6059
www.birddog.com

Re: Request for information

[Jamie C. <jca...@we...>]

Wouldn't the best solution then be to run the Cluster Users and Groups
module on machine A, but not have machine A in the list of hosts to
manage users on?

 - Jamie

Rob...@co... wrote:
> 
> Jamie - let me state my question another way.  I have a machine (Machine A)
> that I want to use as
> my user master for all user/group accounts but I do not want to give each
> user an account on Machine A.
> With the Synchronize users and groups button can I sync up all the users
> from files other than the system
> /etc/passwd files and such. And have the slaves update correctly into their
> /etc/passwd files and such.
> 
> Bob Teeter
> 
> Jamie Cameron <jca...@we...>@lists.sourceforge.net on 02/12/2002
> 04:30:14 PM
> 
> Sent by:  web...@li...
> 
> To:   Rob...@co...
> cc:   web...@li...,
>       Joh...@co...
> Subject:  Re: Request for information
> 
> Rob...@co... wrote:
> >
> > James -  on Cluster Useradmin is it possible to use alternate files for
> the
> > system /etc/passwd, /etc/shadow, /etc/group.
> >
> > I have a master distribution box that I would prefer to use as the master
> > user machine but I don't want to add an account for each user
> > on this box.  Can the code for cluster useradmin have a module setup that
> > allows you to specifiy what files to use for user control.
> 
> You can do this by adjusting the module config of the Users and Groups
> module on the 'slave' machines, because the cluster module on the 'master'
> server actually just calls functions from that module on the remote server
> ..

Re: Request for information

[<Rob...@co...>]

Jamie - let me state my question another way.  I have a machine (Machine A)
that I want to use as
my user master for all user/group accounts but I do not want to give each
user an account on Machine A.
With the Synchronize users and groups button can I sync up all the users
from files other than the system
/etc/passwd files and such. And have the slaves update correctly into their
/etc/passwd files and such.

Bob Teeter






Jamie Cameron <jca...@we...>@lists.sourceforge.net on 02/12/2002
04:30:14 PM

Sent by:  web...@li...


To:   Rob...@co...
cc:   web...@li...,
      Joh...@co...
Subject:  Re: Request for information


Rob...@co... wrote:
>
> James -  on Cluster Useradmin is it possible to use alternate files for
the
> system /etc/passwd, /etc/shadow, /etc/group.
>
> I have a master distribution box that I would prefer to use as the master
> user machine but I don't want to add an account for each user
> on this box.  Can the code for cluster useradmin have a module setup that
> allows you to specifiy what files to use for user control.

You can do this by adjusting the module config of the Users and Groups
module on the 'slave' machines, because the cluster module on the 'master'
server actually just calls functions from that module on the remote server
..

 - Jamie

-
Forwarded by the Webmin development list at web...@we...
To remove yourself from this list, go to
http://lists.sourceforge.net/lists/listinfo/webadmin-devel

Re: Request for information

[Jamie C. <jca...@we...>]

Rob...@co... wrote:
> 
> James -  on Cluster Useradmin is it possible to use alternate files for the
> system /etc/passwd, /etc/shadow, /etc/group.
> 
> I have a master distribution box that I would prefer to use as the master
> user machine but I don't want to add an account for each user
> on this box.  Can the code for cluster useradmin have a module setup that
> allows you to specifiy what files to use for user control.

You can do this by adjusting the module config of the Users and Groups
module on the 'slave' machines, because the cluster module on the 'master'
server actually just calls functions from that module on the remote server ..

 - Jamie

Request for information

[<Rob...@co...>]

James -  on Cluster Useradmin is it possible to use alternate files for the
system /etc/passwd, /etc/shadow, /etc/group.

I have a master distribution box that I would prefer to use as the master
user machine but I don't want to add an account for each user
on this box.  Can the code for cluster useradmin have a module setup that
allows you to specifiy what files to use for user control.

Bob Teeter

Patch to add section headers in config

[Wil C. <wc...@na...>]

The attached patch defines a 12th (number 11) config section
for module configuration.  All you need to do is add an
entry in modules.info like:

foo=This Is My Section,11

and it will appear with $cb colors.

Wil
-- 
W. Reilly Cooley                           wc...@na...
Naked Ape Consulting                        http://nakedape.cc
irc.linux.com                                     #orlug,#lnxs

"There was a vague, unpleasant manginess about his appearence; he somehow
seemed dirty, though a close glance showed him as carefully shaven as an
actor, and clad in immaculate linen."
-- H.L. Mencken, on the death of William Jennings Bryan