webadmin-list — Webmin users mailing list

Re: [webmin-l] LDAP Useradmin 'name' attribute issue

[Murray T. <mtr...@ce...>]

On Tue, 2006-02-14 at 14:24, Murray Trainer wrote:
> Hi Jamie,
> 
> I had a problem in the past creating users because my LDAP server
> doesn't like the name attribute.  I have just had it again and looked
> into it further.  I had a look at a recent Openldap core.schema file and
> think I understand what is going on now.  It looks from the snippets
> below that the attribute 'name' used to be used as the attribute to
> contain the user's first or given name.  The attribute 'givenname' or
> 'gn' is nowadays used for this purpose.  The name is a SUP (superior)
> objectclass - probably containing all forms of the user's 'name'.  This
> means that 'name' can't be used as an LDAP user attribute.  Could you
> please change the 'name' attribute to 'gn' in the LDAP Users & Groups
> module.  You might need an option to use the old attribute in the module
> config to stop breaking sites still using the 'name' attribute.  I will
> hack the version of Webmin for now so it's not urgent.
> 
> Thanks
> 
> Murray
> 
> 
> 
> # OpenLDAP Core schema
> # $OpenLDAP: pkg/ldap/servers/slapd/schema/core.schema,v 1.68.2.6
> 2005/01/20 17:01:18 kurt Exp $
> .
> .
> .
> # 2.5.4.41 is defined above as it's used for subtyping
> #attributetype ( 2.5.4.41 NAME 'name'
> #    EQUALITY caseIgnoreMatch
> #    SUBSTR caseIgnoreSubstringsMatch
> #    SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} )
> 
> attributetype ( 2.5.4.42 NAME ( 'givenName' 'gn' )
>     DESC 'RFC2256: first name(s) for which the entity is known by'
>     SUP name )

Here are the changes below I did to make it work for me.  I think the
in_schema function doesn't work as intended as it tried to save the name
attribute even though it wasn't in my schema.

Murray

ldap:/opt/webmin/ldap-useradmin # diff save_user.cgi*
650,651c650,651
< push(@props, "gn", $firstname)
<       if (&in_schema($schema, "gn"));
---
> push(@props, "name", $firstname)
>       if (&in_schema($schema, "name"));
705,706c705,706
< push(@rprops, "gn")
<       if (&in_schema($schema, "gn"));
---
> push(@rprops, "name")
>       if (&in_schema($schema, "name"));

[webmin-l] LDAP Useradmin 'name' attribute issue

[Murray T. <mtr...@ce...>]

Hi Jamie,

I had a problem in the past creating users because my LDAP server
doesn't like the name attribute.  I have just had it again and looked
into it further.  I had a look at a recent Openldap core.schema file and
think I understand what is going on now.  It looks from the snippets
below that the attribute 'name' used to be used as the attribute to
contain the user's first or given name.  The attribute 'givenname' or
'gn' is nowadays used for this purpose.  The name is a SUP (superior)
objectclass - probably containing all forms of the user's 'name'.  This
means that 'name' can't be used as an LDAP user attribute.  Could you
please change the 'name' attribute to 'gn' in the LDAP Users & Groups
module.  You might need an option to use the old attribute in the module
config to stop breaking sites still using the 'name' attribute.  I will
hack the version of Webmin for now so it's not urgent.

Thanks

Murray



# OpenLDAP Core schema
# $OpenLDAP: pkg/ldap/servers/slapd/schema/core.schema,v 1.68.2.6
2005/01/20 17:01:18 kurt Exp $
.
.
.
# 2.5.4.41 is defined above as it's used for subtyping
#attributetype ( 2.5.4.41 NAME 'name'
#    EQUALITY caseIgnoreMatch
#    SUBSTR caseIgnoreSubstringsMatch
#    SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{32768} )

attributetype ( 2.5.4.42 NAME ( 'givenName' 'gn' )
    DESC 'RFC2256: first name(s) for which the entity is known by'
    SUP name )

RE: [webmin-l] Change Password error

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

Hi Dave,
Thanks, I see the cause of this problem now ... it can happen if changing the password of a user whose password is currently blank. The next release of Webmin will fix it though.

 - Jamie

-----Original Message-----

From:  Dave Isaacs <dav...@en...>
Subj:  RE: [webmin-l] Change Password error
Date:  Tue 14 Feb 2006 1:08 am
Size:  4K
To:  "'web...@li...'" <web...@li...>

     RE: [webmin-l] Change Password error
    I am using the standard Change Password (passwd) module that is packaged with Webmin 1.260. 
  Thanks 
  Dave I 
  -----Original Message----- 
From: web...@li... [mailto:web...@li...] On Behalf Of Jamie Cameron
  Sent: Saturday, February 11, 2006 4:56 AM 
To: web...@li... 
Subject: Re: [webmin-l] Change Password error 
 
  Hi Dave, 
That looks like a bug in Webmin. 
Which module are you doing the password change in though? It seems that the caller of unix_crypt is passing in the wrong parameters.
  - Jamie 
  -----Original Message----- 
  From: Dave Isaacs dav...@en... 
Subj: [webmin-l] Change Password error 
Date: Sat 11 Feb 2006 5:01 am 
Size: 2K 
To: 'web...@li...' web...@li... 
   Message 
 Previously, whenI was using the Webmin 1.230 (on RedHat EL3)passwd module, there were no problems. 
 
Now, using the Webmin 1.250 version, I get the error Failed to change password : Failed to encrypt password :. 
 
Looking at web-funcs-lib.pl, at the unix_crypt() subroutine, I can see that if the call to crypt() fails, then Crypt::UnixCrypt is used instead. Indeed, in my case the 
   
$rv = eval crypt(\$pass, \$salt); 
 
call is resulting in $rv being undef. The fallback to Crypt::UnixCrypt does not work because I do not have that perl module installed.
   
Now my question is: why is the call to crypt() failing? It was not failing previously. Doing a little digging, I discovered the when the failure occurs, $pass is equal to the old password and $salt is equal to undef. Without salt, crypt() appears to return nothing. Why is the salt undef?
   
Thanks 
 
Dave Isaacs 
  
 
 
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RE: [webmin-l] Change Password error

[Dave I. <dav...@en...>]

I am using the standard Change Password (passwd) module that is packaged
with Webmin 1.260.

Thanks

Dave I

-----Original Message-----
From: web...@li...
[mailto:web...@li...] On Behalf Of Jamie
Cameron
Sent: Saturday, February 11, 2006 4:56 AM
To: web...@li...
Subject: Re: [webmin-l] Change Password error


Hi Dave,
That looks like a bug in Webmin.
Which module are you doing the password change in though? It seems that the
caller of unix_crypt is passing in the wrong parameters.

 - Jamie

-----Original Message-----

From:  Dave Isaacs <dav...@en...>
Subj:  [webmin-l] Change Password error
Date:  Sat 11 Feb 2006 5:01 am
Size:  2K
To:  "'web...@li...'"
<web...@li...>

   Message
    Previously,  whenI was using the Webmin 1.230 (on RedHat EL3)passwd
module, there  were no problems.
 
 Now, using the  Webmin 1.250 version, I get the error "Failed to change
password : Failed to  encrypt password :".
 
 Looking at  web-funcs-lib.pl, at the unix_crypt() subroutine, I can see
that if the call to  crypt() fails, then Crypt::UnixCrypt is used instead.
Indeed, in my case  the 
 
 $rv = eval  "crypt(\$pass, \$salt)";
 
 call is resulting in  $rv being undef. The fallback to Crypt::UnixCrypt
does not work because I  do not have that perl module installed.
 
 Now my question is:  why is the call to crypt() failing? It was not failing
previously.  Doing a little digging, I discovered the when the failure
occurs, $pass is equal  to the old password and $salt is equal to undef.
Without salt, crypt()  appears to return nothing. Why is the salt undef?
 
 Thanks
 
 Dave  Isaacs
  



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Re: [webmin-l] problem with adding email for domain...

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

Hi Neil,
It looks like your virtuals file has an entry Postfix cannot handle ... perhaps something with a * or other regular expression in it.

 - Jamie

-----Original Message-----

From:  Neil Davey <ne...@da...>
Subj:  Re: [webmin-l] problem with adding email for domain...
Date:  Mon 13 Feb 2006 6:00 pm
Size:  2K
To:  web...@li...

      Hi Jamie,
 Yep... for some reason that was missing... it used to be there.... :) because I have other virtual domains on the server in question..
 It seems to update the virtual.db file, but issues a warning:
 
 ... Mail for domain failed! : Failed to regenerate table /etc/postfix/virtual: postmap: warning: dict_open_dlinfo: wildcard dynamic map entry no longer supported.  at ../web-lib-funcs.pl line 839.
 
 Which I suspect is a postfix issue and not a webmin issue...
 
 Thanks for your help
 Neil Davey
 
 Jamie Cameron wrote: Do you have the Virtual Domains page in the Postfix module set up correctly?
 The 'Domain mapping lookup tables' field should be set to something like :
 
 hash:/etc/postfix/virtual
 
 - Jamie
 
 On 13/Feb/2006 17:06 Neil Davey wrote .. Hi Jamie,
 I'm running postfix instead of sendmail...
 
 Regards
 Neil
 
 Jamie Cameron wrote:  There is a bug in Virtualmin 2.610 that can caused this, on systems that don't have Sendmail configured to store local domain names in a separate file. The work-around is to edit /etc/mail/sendmail.cf , and add the following line :  Fw/etc/mail/local-host-names  - Jamie  On 13/Feb/2006 15:23 Neil Davey wrote ..   Hi, I've just tried to add a new virtualmin domain to my system.. everything is ok except for email, which gives the following error:  ... Mail for domain failed! : Missing file to open at  postfix::../web-lib-funcs.pl line 1659 at ../web-lib-funcs.pl line 839.  I'm using virtualmin 2.610  and webmin 1.260  any clues?  Regards Neil Davey    ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems?  Stop!  Download the new AJAX search engine that makes searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnkamp;kid=103432amp;bid=230486amp;dat=121642 - Forwarded by the Webmin mailing list at web...@li... To remove yourself from this list, go to http://lists.sourceforge.net/lists/listinfo/webadmin-list     -------------------------------------------------------  --- message truncated --- 

Re: [webmin-l] Trouble getting Cyrus IMAP 2.2.12 module working

[Murray T. <mtr...@ce...>]

On Mon, 2006-02-13 at 14:33, Murray Trainer wrote:
> Hi All,
> 
> I am trying to get the Cyrus IMAP 2.2.12 module working on SuSE 10.0 and
> am getting the error below:
> 
> Cyrus-IMAP server cannot be reached by user cyrus
> Either it's not installed, it's stopped, or the module configuration is
> incorrect.
> 
> I think I have all the required Perl modules and the config entries are
> correct.  The entry in webmin.log when I save the settings is below:
> 
> 1139811503.689.0 [13/Feb/2006 14:18:23] admin
> f1bac8824c9577d80a7816d4bf1516b7 192.168.245.61 cyrus-imapd
> config_save.cgi "_config_" "-" "-" admin_password='******'
> admin_user='cyrus' chkupdate='1' cyrus_conf_path='/etc/cyrus.conf'
> imap_path='/var/lib/imap' imap_port='143'
> imapd_conf_path='/etc/imapd.conf' initscript='/etc/init.d/cyrus'
> lib_path='/usr/lib/cyrus/bin' module='cyrus-imapd' sync_mbox='1'
> 
> My IMAP server is working fine using PLAIN text authentication.
> 
> Any suggestions?
> 
> Thanks
> 
> Murray

I have sorted it out - I had a couple of extra cyrus salauthd
authentication modules installed and it was defaulting to digestmd5
encryption instead of plain text which I assume the webmin modules use.

Murray

Re: [webmin-l] problem with adding email for domain...

[Neil D. <ne...@da...>]

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Hi Jamie,<br>
Yep... for some reason that was missing... it used to be there.... :)&nbsp;
because I have other virtual domains on the server in question..<br>
It seems to update the virtual.db file, but issues a warning:<br>
<br>
.. Mail for domain failed! : Failed to regenerate table
/etc/postfix/virtual: <tt>postmap: warning: dict_open_dlinfo: wildcard
dynamic map entry no longer supported.
</tt> at ../web-lib-funcs.pl line 839.<br>
<br>
Which I suspect is a postfix issue and not a webmin issue...<br>
<br>
Thanks for your help<br>
Neil Davey<br>
<br>
Jamie Cameron wrote:
<blockquote cite="mid...@fu..." type="cite">Do you
have the Virtual Domains page in the Postfix module set up correctly?<br>
The 'Domain mapping lookup tables' field should be set to something
like :<br>
  <br>
hash:/etc/postfix/virtual<br>
  <br>
&nbsp;- Jamie<br>
  <br>
On 13/Feb/2006 17:06 Neil Davey wrote ..
  <blockquote type="cite">Hi Jamie,<br>
I'm running postfix instead of sendmail...<br>
    <br>
Regards<br>
Neil<br>
    <br>
Jamie Cameron wrote:
    <blockquote type="cite"
 cite="http://fudu.home:20000/mailbox/mid...@fu...">
      <pre>There is a bug in Virtualmin 2.610 that can caused this, on systems that
don't have Sendmail configured to store local domain names in a separate file.
The work-around is to edit /etc/mail/sendmail.cf , and add the following line :

Fw/etc/mail/local-host-names

 - Jamie

On 13/Feb/2006 15:23 Neil Davey wrote ..
  </pre>
      <blockquote type="cite">
        <pre>Hi,
I've just tried to add a new virtualmin domain to my system.. everything
is ok except for email, which gives the following error:

.. Mail for domain failed! : Missing file to open at 
postfix::../web-lib-funcs.pl line 1659 at ../web-lib-funcs.pl line 839.

I'm using virtualmin 2.610  and webmin 1.260  any clues?

Regards
Neil Davey



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  </pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
-------------------------------------------
Neil Davey
Daveytronics.com.au

P.O. Box 6089
Logan Central
QLD, 4114

Looking for cost effective web hosting?
Need a domain name for your business?
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-------------------------------------------
    </pre>
  </blockquote>
  <br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">-- 
-------------------------------------------
Neil Davey
Daveytronics.com.au

P.O. Box 6089
Logan Central
QLD, 4114

Looking for cost effective web hosting?
Need a domain name for your business?
It's cheaper than you think!!
Talk to us and see what we can do for you
-------------------------------------------
</pre>
</body>
</html>

Re: [webmin-l] problem with adding email for domain...

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

Do you have the Virtual Domains page in the Postfix module set up correctly?<br />The 'Domain mapping lookup tables' field should be set to something like :<br /><br />hash:/etc/postfix/virtual<br /><br />=A0- Jamie<br /><br />On 13/Feb/2006 17:06 Neil Davey wrote ..
<blockquote type=3D"cite">

Hi Jamie,<br />
I'm running postfix instead of sendmail...<br />
<br />
Regards<br />
Neil<br />
<br />
Jamie Cameron wrote:
<blockquote type=3D"cite" cite=3D"http://fudu.home:20000/mailbox/mid...@fu...">
  <pre>There is a bug in Virtualmin 2.610 that can caused this, on systems that
don't have Sendmail configured to store local domain names in a separate file.
The work-around is to edit /etc/mail/sendmail.cf , and add the following line :

Fw/etc/mail/local-host-names

 - Jamie

On 13/Feb/2006 15:23 Neil Davey wrote ..
  </pre>
  <blockquote type=3D"cite">
    <pre>Hi,
I've just tried to add a new virtualmin domain to my system.. everything
is ok except for email, which gives the following error:

.. Mail for domain failed! : Missing file to open at 
postfix::../web-lib-funcs.pl line 1659 at ../web-lib-funcs.pl line 839.

I'm using virtualmin 2.610  and webmin 1.260  any clues?

Regards
Neil Davey



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  <pre><!---->

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  </pre>
</blockquote>
<br />
<pre cols=3D"72" class=3D"moz-signature">-- 
-------------------------------------------
Neil Davey
Daveytronics.com.au

P.O. Box 6089
Logan Central
QLD, 4114

Looking for cost effective web hosting?
Need a domain name for your business?
It's cheaper than you think!!
Talk to us and see what we can do for you
-------------------------------------------
</pre>
</blockquote><br />

[webmin-l] Trouble getting Cyrus IMAP 2.2.12 module working

[Murray T. <mtr...@ce...>]

Hi All,

I am trying to get the Cyrus IMAP 2.2.12 module working on SuSE 10.0 and
am getting the error below:

Cyrus-IMAP server cannot be reached by user cyrus
Either it's not installed, it's stopped, or the module configuration is
incorrect.

I think I have all the required Perl modules and the config entries are
correct.  The entry in webmin.log when I save the settings is below:

1139811503.689.0 [13/Feb/2006 14:18:23] admin
f1bac8824c9577d80a7816d4bf1516b7 192.168.245.61 cyrus-imapd
config_save.cgi "_config_" "-" "-" admin_password='******'
admin_user='cyrus' chkupdate='1' cyrus_conf_path='/etc/cyrus.conf'
imap_path='/var/lib/imap' imap_port='143'
imapd_conf_path='/etc/imapd.conf' initscript='/etc/init.d/cyrus'
lib_path='/usr/lib/cyrus/bin' module='cyrus-imapd' sync_mbox='1'

My IMAP server is working fine using PLAIN text authentication.

Any suggestions?

Thanks

Murray

Re: [webmin-l] problem with adding email for domain...

[Neil D. <ne...@da...>]

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Hi Jamie,<br>
I'm running postfix instead of sendmail...<br>
<br>
Regards<br>
Neil<br>
<br>
Jamie Cameron wrote:
<blockquote cite="mid...@fu..." type="cite">
  <pre wrap="">There is a bug in Virtualmin 2.610 that can caused this, on systems that
don't have Sendmail configured to store local domain names in a separate file.
The work-around is to edit /etc/mail/sendmail.cf , and add the following line :

Fw/etc/mail/local-host-names

 - Jamie

On 13/Feb/2006 15:23 Neil Davey wrote ..
  </pre>
  <blockquote type="cite">
    <pre wrap="">Hi,
I've just tried to add a new virtualmin domain to my system.. everything
is ok except for email, which gives the following error:

.. Mail for domain failed! : Missing file to open at 
postfix::../web-lib-funcs.pl line 1659 at ../web-lib-funcs.pl line 839.

I'm using virtualmin 2.610  and webmin 1.260  any clues?

Regards
Neil Davey



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  </pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">-- 
-------------------------------------------
Neil Davey
Daveytronics.com.au

P.O. Box 6089
Logan Central
QLD, 4114

Looking for cost effective web hosting?
Need a domain name for your business?
It's cheaper than you think!!
Talk to us and see what we can do for you
-------------------------------------------
</pre>
</body>
</html>

Re: [webmin-l] problem with adding email for domain...

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

There is a bug in Virtualmin 2.610 that can caused this, on systems that
don't have Sendmail configured to store local domain names in a separate file.
The work-around is to edit /etc/mail/sendmail.cf , and add the following line :

Fw/etc/mail/local-host-names

 - Jamie

On 13/Feb/2006 15:23 Neil Davey wrote ..
> Hi,
> I've just tried to add a new virtualmin domain to my system.. everything
> is ok except for email, which gives the following error:
> 
> .. Mail for domain failed! : Missing file to open at 
> postfix::../web-lib-funcs.pl line 1659 at ../web-lib-funcs.pl line 839.
> 
> I'm using virtualmin 2.610  and webmin 1.260  any clues?
> 
> Regards
> Neil Davey
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc. Do you grep through log
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[webmin-l] problem with adding email for domain...

[Neil D. <ne...@da...>]

Hi,
I've just tried to add a new virtualmin domain to my system.. everything 
is ok except for email, which gives the following error:

.. Mail for domain failed! : Missing file to open at 
postfix::../web-lib-funcs.pl line 1659 at ../web-lib-funcs.pl line 839.

I'm using virtualmin 2.610  and webmin 1.260  any clues?

Regards
Neil Davey

Re: [webmin-l] Unable to log in

[Gerard S. <ge...@se...>]

Jamie Cameron <jca...@we...>

> Assuming you can login as root via SSH, this problem can be fixed by do=
ing the following :
> 1 - Edit the file /etc/webmin/miniserv.conf
> 2 - Remove any allow=3D or deny=3D lines.
> 3 - Run /etc/webmin/restart to apply the config changes.
>=20
>  - Jamie

Thanks! I had tried that procedure but neglected to restart Webmin. Once
I did restart it everything worked fine.

--=20
Gerard

Re: [webmin-l] Unable to log in

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

Assuming you can login as root via SSH, this problem can be fixed by doing the following :
1 - Edit the file /etc/webmin/miniserv.conf
2 - Remove any allow= or deny= lines.
3 - Run /etc/webmin/restart to apply the config changes.

 - Jamie

-----Original Message-----

From:  Gerard Seibert <ge...@se...>
Subj:  [webmin-l] Unable to log in
Date:  Sun 12 Feb 2006 10:11 am
Size:  852 bytes
To:  web...@li...

OK, I had Webmin configured to only allow me to log in from a certain IP.
Unfortunately, that IP has now changed and I cannot seem to log into the
program. I know I saw something about resetting Webmin in case a
situation like this happened, but I cannot recall what it was at the
moment.

Can someone assist me?

Thanks!

-- 
Gerard Seibert
ge...@se...



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[webmin-l] Unable to log in

[Gerard S. <ge...@se...>]

OK, I had Webmin configured to only allow me to log in from a certain IP.
Unfortunately, that IP has now changed and I cannot seem to log into the
program. I know I saw something about resetting Webmin in case a
situation like this happened, but I cannot recall what it was at the
moment.

Can someone assist me?

Thanks!

--=20
Gerard Seibert
ge...@se...

RE: [webmin-l] Restricting file upload size

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

On 11/Feb/2006 03:19 Dave Isaacs wrote ..
> My experience shows that this does not work.
> 
> I put a 1000000 limit in my call to ReadParseMime then attempted to upload
> a
> 1GB file.  Using top, I watched the miniserv.pl process climb to about
> 600MB
> before crashing.  ReadParseMime was never called because my module was
> never
> invoked.
> 
> If I look at miniserv.pl, at around line 1740, I see
> 
> 	$clen = $header{"content-length"};
> 	if ($method eq "POST" && $clen_read < $clen) {
> 		# Still some more POST data to read
> 		while(length($postinput) < $clen) {
> 			$buf = &read_data($clen - length($postinput));
> 			if (!length($buf)) {
> 				&http_error(500, "Failed to read ".
> 						 "POST request");
> 				}
> 			$postinput .= $buf;
> 			}
> 		}
> 
> This looks an awful lot like reading in the entire file upload.  As a test,
> I wrote the length($postinput) value to a log file (right before the call
> to
> read_data) and found that miniserv.pl was looping in an attempt to read
> the
> entire file upload.

Hi Dave,
You are absolutely correct .. Webmin really does the whole posted input into
memory! Sorry, I totally forgot about that..

> Then I stumbled upon the forkcgis configuration setting, which appears
> to
> switch on a alternative method of invoking the webmin modules.  This method
> has miniserv.pl forwarding the file upload to the forked process as it
> is
> received.  Unfortunately, this does not work either.  Now when I upload
> a
> large file, something goes wrong and there is never a response.  The log
> messages I put in the miniserv loop shows that about 7500 bytes are read
> in,
> and then everything stops.  Although this is better than crashing the
> server, it is still not correct.

I looked into this too, and found that Webmin is currently terminating the
browser connection if the uploaded data is more than the set limit. Unfortunately,
no browsers take kindly to this, and display an error message about the connection
being closed. 

In the next release of Webmin, it will handle this better by reading all the data
submitted by the browser, but not actually storing it in memory if the limit is exceeded.
That is not quite ideal, but still better than the current situation.

 - Jamie

Re: [webmin-l] Change Password error

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

Hi Dave,
That looks like a bug in Webmin.
Which module are you doing the password change in though? It seems that the caller of unix_crypt is passing in the wrong parameters.

 - Jamie

-----Original Message-----

From:  Dave Isaacs <dav...@en...>
Subj:  [webmin-l] Change Password error
Date:  Sat 11 Feb 2006 5:01 am
Size:  2K
To:  "'web...@li...'" <web...@li...>

   Message
    Previously,  whenI was using the Webmin 1.230 (on RedHat EL3)passwd module, there  were no problems.
 
 Now, using the  Webmin 1.250 version, I get the error "Failed to change password : Failed to  encrypt password :".
 
 Looking at  web-funcs-lib.pl, at the unix_crypt() subroutine, I can see that if the call to  crypt() fails, then Crypt::UnixCrypt is used instead. Indeed, in my case  the 
 
 $rv = eval  "crypt(\$pass, \$salt)";
 
 call is resulting in  $rv being undef. The fallback to Crypt::UnixCrypt does not work because I  do not have that perl module installed.
 
 Now my question is:  why is the call to crypt() failing? It was not failing previously.  Doing a little digging, I discovered the when the failure occurs, $pass is equal  to the old password and $salt is equal to undef. Without salt, crypt()  appears to return nothing. Why is the salt undef?
 
 Thanks
 
 Dave  Isaacs
  

[webmin-l] Change Password error

[Dave I. <dav...@en...>]

Previously, when I was using the Webmin 1.230 (on RedHat EL3) passwd module,
there were no problems.
 
Now, using the Webmin 1.250 version, I get the error "Failed to change
password : Failed to encrypt password :".
 
Looking at web-funcs-lib.pl, at the unix_crypt() subroutine, I can see that
if the call to crypt() fails, then Crypt::UnixCrypt is used instead.
Indeed, in my case the 
 
$rv = eval "crypt(\$pass, \$salt)";
 
call is resulting in $rv being undef.  The fallback to Crypt::UnixCrypt does
not work because I do not have that perl module installed.
 
Now my question is: why is the call to crypt() failing?  It was not failing
previously.  Doing a little digging, I discovered the when the failure
occurs, $pass is equal to the old password and $salt is equal to undef.
Without salt, crypt() appears to return nothing.  Why is the salt undef?
 
Thanks
 
Dave Isaacs

RE: [webmin-l] Restricting file upload size

[Dave I. <dav...@en...>]

My experience shows that this does not work.

I put a 1000000 limit in my call to ReadParseMime then attempted to upload a
1GB file.  Using top, I watched the miniserv.pl process climb to about 600MB
before crashing.  ReadParseMime was never called because my module was never
invoked.

If I look at miniserv.pl, at around line 1740, I see

	$clen = $header{"content-length"};
	if ($method eq "POST" && $clen_read < $clen) {
		# Still some more POST data to read
		while(length($postinput) < $clen) {
			$buf = &read_data($clen - length($postinput));
			if (!length($buf)) {
				&http_error(500, "Failed to read ".
						 "POST request");
				}
			$postinput .= $buf;
			}
		}

This looks an awful lot like reading in the entire file upload.  As a test,
I wrote the length($postinput) value to a log file (right before the call to
read_data) and found that miniserv.pl was looping in an attempt to read the
entire file upload.

Then I stumbled upon the forkcgis configuration setting, which appears to
switch on a alternative method of invoking the webmin modules.  This method
has miniserv.pl forwarding the file upload to the forked process as it is
received.  Unfortunately, this does not work either.  Now when I upload a
large file, something goes wrong and there is never a response.  The log
messages I put in the miniserv loop shows that about 7500 bytes are read in,
and then everything stops.  Although this is better than crashing the
server, it is still not correct.

Thanks

Dave I



-----Original Message-----
From: web...@li...
[mailto:web...@li...] On Behalf Of Jamie
Cameron
Sent: Friday, February 10, 2006 4:06 AM
To: web...@li...
Subject: Re: [webmin-l] Restricting file upload size


Hi Dave,
In your custom module, you can pass a parameter to the ReadParseMime
function to limit uploads to a specified number of bytes. This is the only
function that actually reads the upload into memory - the main miniserv.pl
process does not.

 - Jamie

-----Original Message-----

From:  Dave Isaacs <dav...@en...>
Subj:  [webmin-l] Restricting file upload size
Date:  Fri 10 Feb 2006 2:37 am
Size:  1K
To:  "'web...@li...'"
<web...@li...>

     Restricting file upload size
    Is there any way to have miniserv reject file uploads over a certain
size? 
  I have implemented a custom module that allows users to upload an image
file. However, if the user attempts to upload a very large file (say 1GB),
the whole server grinds to a halt as miniserv attempts to load the file into
memory.
  I can put size restrictions in my module, but miniserv still attempts to
upload the entire file before passing control to my module. What I need to
happen is for miniserv to reject the upload immediately (perhaps with Error
413 - Request Entity Too Large), without uploading anything.
  Thanks 
  Dave Isaacs 
     --- message truncated --- 



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Re: [webmin-l] Restricting file upload size

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

Hi Dave,
In your custom module, you can pass a parameter to the ReadParseMime function to limit uploads to a specified number of bytes. This is the only function that actually reads the upload into memory - the main miniserv.pl process does not.

 - Jamie

-----Original Message-----

From:  Dave Isaacs <dav...@en...>
Subj:  [webmin-l] Restricting file upload size
Date:  Fri 10 Feb 2006 2:37 am
Size:  1K
To:  "'web...@li...'" <web...@li...>

     Restricting file upload size
    Is there any way to have miniserv reject file uploads over a certain size? 
  I have implemented a custom module that allows users to upload an image file. However, if the user attempts to upload a very large file (say 1GB), the whole server grinds to a halt as miniserv attempts to load the file into memory.
  I can put size restrictions in my module, but miniserv still attempts to upload the entire file before passing control to my module. What I need to happen is for miniserv to reject the upload immediately (perhaps with Error 413 - Request Entity Too Large), without uploading anything.
  Thanks 
  Dave Isaacs 
     --- message truncated --- 

[webmin-l] Hosed server to backup

[Barry <we...@i1...>]

Hi All - I have a server that is hosed to the extent I want to rebuild 
it. But since there is information there I will need to move tot he 
rebuilt server, I want to check here first about backup procedures.

Items I need to back up and restore:

1 - Virtual servers created by virtualmin (the whole shebang, including 
databases)
2 - Additional regular users and their directories
3 - Overall Webmin settings
4 - Perl modules installed


System is/will be FC4

Finally, I am thinking about whether or not I should install some sort 
of virtualization software. I noticed on another thread Jamie mentioned 
one he hadn't tested, is there any that is known to work with webmin? 
Open source only of course :) Does anyone have experience with Xensource 
or others?

Thanks in advance!

Barry

[webmin-l] Restricting file upload size

[Dave I. <dav...@en...>]

Is there any way to have miniserv reject file uploads over a certain size?

I have implemented a custom module that allows users to upload an image
file.  However, if the user attempts to  upload a very large file (say 1GB),
the whole server grinds to a halt as miniserv attempts to load the file into
memory.

I can put size restrictions in my module, but miniserv still attempts to
upload the entire file before passing control to my module.  What I need to
happen is for miniserv to reject the upload immediately (perhaps with Error
413 - Request Entity Too Large), without uploading anything.

Thanks

Dave Isaacs

Re: [webmin-l] linux-Vserver / OpenVZ and web/user/virtualmin

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

Hi Marcos,
I haven't personally run Webmin on Vserver or OpenVZ, but I have used it with no problems on Solaris Zones, which are similar. As long as the virtual environment doesn't place any restrictions on processes running as root or available ports, Webmin should run fine.

Some virtual/jail environments that I have seen don't allow the same port to be used between different servers, meaning that you need to run specially modified mail servers and so on. But if OpenVZ doesn't do this, Webmin should run fine.

 - Jamie

-----Original Message-----

From:  Marcos Rubinstein <we...@al...>
Subj:  [webmin-l] linux-Vserver / OpenVZ and web/user/virtualmin
Date:  Thu 9 Feb 2006 8:20 pm
Size:  1K
To:  web...@li...

Is there any problems with linux-Vserver or OpenVZ with webmin usermin or 
virtualmin?

I'm in the planning stages of setting up a new server for a client. I like 
the idea of virtual servers, even if I have only one client in the 
server.. I do like the idea that I can always check from the host server a 
virtual that have been compromized... and also I can set up two identical 
virtuals... if the active one is compromised, while I investigate what's 
going on... I can activate the other!

In any case... I would like to know if there are any problems with my 
favorite GUI :)... that I do need to be aware of... I use in other server 
and old virtualizacion scheme... and with that virtualmin was very 
difficult to set up...

and.. even if OT... which one would you recommend???? I like from OpenVZ 
that each virtual has access to its own IP tables... in the other hand... 
I like to support and use real community projects like linux-Vserver 
(OpenVZ is the open source rendition of virtuozo... )

TIA

Marcos


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[webmin-l] linux-Vserver / OpenVZ and web/user/virtualmin

[Marcos R. <we...@al...>]

Is there any problems with linux-Vserver or OpenVZ with webmin usermin or 
virtualmin?

I'm in the planning stages of setting up a new server for a client. I like 
the idea of virtual servers, even if I have only one client in the 
server.. I do like the idea that I can always check from the host server a 
virtual that have been compromized... and also I can set up two identical 
virtuals... if the active one is compromised, while I investigate what's 
going on... I can activate the other!

In any case... I would like to know if there are any problems with my 
favorite GUI :)... that I do need to be aware of... I use in other server 
and old virtualizacion scheme... and with that virtualmin was very 
difficult to set up...

and.. even if OT... which one would you recommend???? I like from OpenVZ 
that each virtual has access to its own IP tables... in the other hand... 
I like to support and use real community projects like linux-Vserver 
(OpenVZ is the open source rendition of virtuozo... )

TIA

Marcos

RE: [webmin-l] Apache & Webmin themes

[Karthikeyan S. <ksu...@ad...>]

=20

-----Original Message-----
From: web...@li...
[mailto:web...@li...] On Behalf Of John
Hinton
Sent: Wednesday, February 08, 2006 4:57 PM
To: web...@li...
Subject: Re: [webmin-l] Apache & Webmin themes

Karthikeyan Subramaniam wrote:

>Hi ,
>
>Does Webmin1.260 support the 'themes' while running it on Apache? If=20
>not what is the default theme?..msclinux3?
>
>Thanks,
>Karthi
>
>
> =20
>
I'm curious as to why you would want to run Webmin on Apache? What
happens if apache fails to restart when you're making a mod? No way to
get back in to fix the error via Webmin....

Just looking for benefits... Sorry to be off topic.

John Hinton




[Karthi]=20
I got your point. Actually I don't have any issues with miniserv. It
works nice. But we have another network monitor runs on apache. I just
thought of integrating these two in a single web server, if it is
possible.=20

Thanks,
[Karthi] =20




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SPLUNK!
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121642
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web...@li...
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