webadmin-list — Webmin users mailing list

[webmin-l] Vadmin Sendmail Question

[John H. <web...@ew...>]

Just installed a new server... added Webmin and Virtualmin... the normal 
routine. I don't think I missed anything with my sendmail configuration 
as it does receive mail and at least forward mail. But for some reason 
Virtualmin doesn't think sendmail is running no matter what I try within 
Virtualmin, but yet at the same time the Sendmail module does think 
Sendmail is running.

As this is a fresh install, this would be all the latest modules/packages.

Any ideas?

John Hinton

Re: [webmin-l] Apache module mod_suexec is not installed or not enabled.

[Kris D. <kd...@vi...>]

Jamie Cameron wrote:
> 1) Go to the /etc/apache2/mods-enabled directory
> 2) Run  ln -s ../mods-available/suexec.* .

This is what "a2enmod <module>" is supposed to do on Debian and its 
derivatives (like Ubuntu).

-kgd

Re: [webmin-l] Apache module mod_suexec is not installed or not enabled.

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

On 15/Dec/2006 12:53 Munzir Taha (=D9=85=D9=86=D8=B0=D8=B1   =D8=B7=D9=87) wrote ..
> Hi,
> virtualmin upon configuration complains:
> Suexec is enabled in the default template, but the Apache module mod_suexec
> is not installed or not enabled.
> 
> This is a fresh installation of ubuntu dapper server. I did a2enmod suexec
> and  restarted apache to no use, what is it looking for exactly, please?

You need to do the following :

1) Go to the /etc/apache2/mods-enabled directory
2) Run  ln -s ../mods-available/suexec.* .
3) Go to Webmin's Apache module, click on Re-Configure Known Modules, and click Save
4) Go back to Virtualmin and re-check the config

[webmin-l] Apache module mod_suexec is not installed or not enabled.

[Munzir T. ( ) <mun...@gm...>]

Hi,
virtualmin upon configuration complains:
Suexec is enabled in the default template, but the Apache module mod_suexec is 
not installed or not enabled.

This is a fresh installation of ubuntu dapper server. I did a2enmod suexec and 
restarted apache to no use, what is it looking for exactly, please?

-- 
Munzir Taha
Telecommunications and Electronics Engineer
Maintainer of Fedora Arabic Translation Project
https://listman.redhat.com/mailman/listinfo/fedora-trans-ar
Maintainer of the OpenBugs project page at
http://www.arabic-fedora.org/munzir/OpenBugs.html
Master CIW Designer, ICDL, MOUS, Linux+, LPI 101
Riyadh, SA

Re: [webmin-l] searching for document

[Munzir T. ( ) <mun...@gm...>]

On Wednesday 13 December 2006 11:59, Stephen Liu wrote:
> Hi folks,
>
> Please advise where can I find the document to config postfix with
> Webmin, preferrable GUI.

http://www.swelltech.com/support/webminguide-1.0/ch10.html


-- 
Munzir Taha
Telecommunications and Electronics Engineer
Maintainer of Fedora Arabic Translation Project
https://listman.redhat.com/mailman/listinfo/fedora-trans-ar
Maintainer of the OpenBugs project page at
http://www.arabic-fedora.org/munzir/OpenBugs.html
Master CIW Designer, ICDL, MOUS, Linux+, LPI 101
Riyadh, SA

[webmin-l] virtualmin reseller guide typos

[Munzir T. ( ) <mun...@gm...>]

Hi Jamie,
I noticed that on this page
http://www.virtualmin.com/support/documentation/virtualmin-reseller-guide/ch05.html
there are spaces in wrong places. selec ted, writ ten, clic k, appropr iate.

Keep up your outstanding support!

-- 
Munzir Taha
Telecommunications and Electronics Engineer
Maintainer of Fedora Arabic Translation Project
https://listman.redhat.com/mailman/listinfo/fedora-trans-ar
Maintainer of the OpenBugs project page at
http://www.arabic-fedora.org/munzir/OpenBugs.html
Master CIW Designer, ICDL, MOUS, Linux+, LPI 101
Riyadh, SA

Re: [webmin-l] updates

[John H. <web...@ew...>]

Barry wrote:
> Jamie Cameron wrote:
>   
>>>> I imagine they are running out of memory and dieing.
>>>>
>>>>  - Jamie
>>>>         
>>> Is there a way for me to find out the peak size? There doesn't seem to
>>> be anything in the log file, at least for now...
>>>       
>> I guess all you can do is keep running the top command, to see how high
>> memory usage gets..
>>
>>  - Jamie
>>
>>     
>
> Jamie -
>
> I am seeing some modules that are crashing when top is reporting memory
> usage as low as ~20MB on a 128MB (no swap) system.
>   
128mb with no swap? I'm not sure that was enough for a server 10 years 
ago. How many instances of Apache does your config allow. If 10, that'll 
be half your ram. I saw mysql in the top report... and that can vary 
widely up to needing more than you have. But with as little as you have 
you'll likely need to tweak the my.cnf down to almost nothing.. maybe 
you can find a tinymy.cnf example file somewhere.

IIRC, back when 128megs was pretty common, Redhat was suggesting a swap 
of twice the size of the ram. I'd say put more ram in it and if you have 
to rebuild the system and be sure to include a swap of at least the size 
of the ram, if not twice the amount.

Best,
John Hinton

Re: [webmin-l] problem with email address

[<and...@fr...>]

OK, I tried it and it works perfectly.
Thank you very much,

Andrea



                                                                           
             "Jamie Cameron"                                               
             <jcameron@webmin.                                             
             com>                                                       To 
             Sent by:                  Webmin users list                   
             webadmin-list-bou         <web...@li... 
             nc...@li...         t>                                  
             forge.net                                                  cc 
                                                                           
                                                                   Subject 
             12/12/2006 19.27          Re: [webmin-l] problem with email   
                                       address                             
                                                                           
             Please respond to                                             
             Webmin users list                                             
             <webadmin-list@li                                             
             sts.sourceforge.n                                             
                    et>                                                    
                                                                           
                                                                           



On 12/Dec/2006 08:35 and...@fr... wrote ..
> Hi all,
> I configured webmin auto - upgrade , specifically update modules on
> schedule; I also configured to send email update report to my address.
>
> Onfortunately, on only one server, I cannot make postfix undertsand that
> it has to send e-mail with domain following the username@,
> insted of fully qualified hostname following the username@.
>
> I think the problem could be the integrated configuration between postfix
> and mysql, to menage via postfixadmin any virtual domain.
>
> To work-around this problem of mine, isn't any way to modify the sender
> (from) of webmin update reports ?
>
> If I send a mail via webmin, user mailbox, and manually put
> we...@my... everything is OK
> (the problem is related to my server receiving the email: the email from
> webmin@fullyqualifiedhostname are refused by the anti-spam rules)

You can actually configure the From: address that Webmin uses, although
it is a little obscure. Go to the Read User Mail module, click on Module
Config, and change the 'From: address to use when Webmin sends email'
field to we...@my....

Because code in that module is used by many others for sending email,
it's settings for SMTP and the From: address effect pretty much all email
sent by Webmin.

 - Jamie

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[webmin-l] searching for document

[Stephen L. <sa...@ya...>]

Hi folks,

Please advise where can I find the document to config postfix with
Webmin, preferrable GUI.

TIA

B.R.
satimis

Send instant messages to your online friends http://uk.messenger.yahoo.com 

Re: [webmin-l] adding a database to a virtualmin domain without one

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

On 12/Dec/2006 21:19 Barry wrote ..
> Jamie Cameron wrote:
> > On 12/Dec/2006 17:33 Barry wrote ..
> >> Jamie -
> >>
> >> Due to the memory issues I described earlier, a domain was created via
> >> virtualmin that didn't have a db associated with it.
> >>
> >> Now I'd like to add that missing db.
> >>
> >> When I bring up the domain frame in virtualmin, there is no button for
> >> "edit databases" as there is on the domains that have databases.
> >>
> >> So it looks like the only way to add the database would be to click
> on
> >> the checkbox for "MySQL database enabled?" and then "Save virtual server"
> >>
> >> But given the memory problems, that seems overkill and in fact won't
> run
> >> at all if I have mysqld running.
> >>
> >> Is there another way to create a database, maybe via the mysql module
> >> (or even by hand - I am willing to do it from the shell if necessary)
> >> and then associate it with a virtualmin domain?
> >>
> >> Maybe there is a webmin/virtualmin command line tool I can use instead
> >> of the web interface?
> > 
> > That depends .. did the MySQL login for your virtual server get created?
> > The fix depends on that.
> 
> Yes, it looks like both the db and the user are there aty this point, 
> but the virtualmin domain summary screen says "Databases: None created"

In that case, try editing the virtual server's file under
/etc/webmin/virtual-server/domains, add changing the mysql=0 line to mysql=1.
This will make the Edit Databases page appear, and on that page you can associate
the existing database with the domain.

 - Jamie

Re: [webmin-l] adding a database to a virtualmin domain without one

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

Jamie Cameron wrote:
> On 12/Dec/2006 17:33 Barry wrote ..
>> Jamie -
>>
>> Due to the memory issues I described earlier, a domain was created via
>> virtualmin that didn't have a db associated with it.
>>
>> Now I'd like to add that missing db.
>>
>> When I bring up the domain frame in virtualmin, there is no button for
>> "edit databases" as there is on the domains that have databases.
>>
>> So it looks like the only way to add the database would be to click on
>> the checkbox for "MySQL database enabled?" and then "Save virtual server"
>>
>> But given the memory problems, that seems overkill and in fact won't run
>> at all if I have mysqld running.
>>
>> Is there another way to create a database, maybe via the mysql module 
>> (or even by hand - I am willing to do it from the shell if necessary) 
>> and then associate it with a virtualmin domain?
>>
>> Maybe there is a webmin/virtualmin command line tool I can use instead
>> of the web interface?
> 
> That depends .. did the MySQL login for your virtual server get created?
> The fix depends on that.

Yes, it looks like both the db and the user are there aty this point, 
but the virtualmin domain summary screen says "Databases: None created"
> 
> However, I would strongly recommend against trying to use it on a machine that
> is running out of memory like this .. you'll just end up with broken configurations.

Yeah I know :( I am hoping to find some intermediate workarounds.

Anyway I don't create domains that often, so in the worst case I am 
willing to take down some services for a few minutes to get it done. But 
like you said, if I end up in an incomplete state like this, I'd like to 
be able to recover so webmin/virtualmin is in sync with the actual 
machine config.

Best,

Barry

Re: [webmin-l] adding a database to a virtualmin domain without one

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

On 12/Dec/2006 17:33 Barry wrote ..
> Jamie -
> 
> Due to the memory issues I described earlier, a domain was created via
> virtualmin that didn't have a db associated with it.
> 
> Now I'd like to add that missing db.
> 
> When I bring up the domain frame in virtualmin, there is no button for
> "edit databases" as there is on the domains that have databases.
> 
> So it looks like the only way to add the database would be to click on
> the checkbox for "MySQL database enabled?" and then "Save virtual server"
> 
> But given the memory problems, that seems overkill and in fact won't run
> at all if I have mysqld running.
> 
> Is there another way to create a database, maybe via the mysql module 
> (or even by hand - I am willing to do it from the shell if necessary) 
> and then associate it with a virtualmin domain?
> 
> Maybe there is a webmin/virtualmin command line tool I can use instead
> of the web interface?

That depends .. did the MySQL login for your virtual server get created?
The fix depends on that.

However, I would strongly recommend against trying to use it on a machine that
is running out of memory like this .. you'll just end up with broken configurations.

 - Jamie

[webmin-l] adding a database to a virtualmin domain without one

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

Jamie -

Due to the memory issues I described earlier, a domain was created via 
virtualmin that didn't have a db associated with it.

Now I'd like to add that missing db.

When I bring up the domain frame in virtualmin, there is no button for 
"edit databases" as there is on the domains that have databases.

So it looks like the only way to add the database would be to click on 
the checkbox for "MySQL database enabled?" and then "Save virtual server"

But given the memory problems, that seems overkill and in fact won't run 
at all if I have mysqld running.

Is there another way to create a database, maybe via the mysql module 
(or even by hand - I am willing to do it from the shell if necessary) 
and then associate it with a virtualmin domain?

Maybe there is a webmin/virtualmin command line tool I can use instead 
of the web interface?

Best,

Barry

Re: [webmin-l] More memory tests

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

On 12/Dec/2006 16:47 Barry wrote ..
> 
> > That might be OK if it is your intention, or if it just evolved that
> > way, maybe you can live with it - but can you let us know if you
> > can/will make efforts to reel memory usage back in?
> >
> > I suppose I can help you with additional tests ....
> >
> >   
> Jamie - here is a snapshot of top right after a reboot:
> 
> top - 18:43:58 up 2 min,  0 users,  load average: 0.07, 0.02, 0.00
> Tasks:  34 total,   1 running,  33 sleeping,   0 stopped,   0 zombie
> Cpu(s):  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  
> 0.0% si
> Mem:    131072k total,    58840k used,    72232k free,        0k buffers
> Swap:        0k total,        0k used,        0k free,        0k cached
> 
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 24362 mysql     16   0  132m  24m  29m S  0.0 19.4   0:00.06 mysqld
> 24533 root      16   0 42308  10m  34m S  0.0  7.9   0:00.00 miniserv.pl
> 24507 root      16   0 38824 9732  31m S  0.0  7.4   0:00.00 miniserv.pl
> 24499 apache    18   0 99788 8432  94m S  0.0  6.4   0:00.00 httpd
> 24456 root      16   0 99788 8412  94m S  0.0  6.4   0:00.04 httpd
> 24426 root      16   0 32924 3796  30m S  0.0  2.9   0:00.01 sendmail
> 24440 smmsp     18   0 27796 3116  25m S  0.0  2.4   0:00.00 sendmail
> 25656 root      16   0 25596 2332  24m S  0.0  1.8   0:00.01 sshd
> 25773 root      16   0 25596 2332  24m S  0.0  1.8   0:00.01 sshd
> 25777 barry     16   0 24552 2328  23m S  0.0  1.8   0:00.00 sshd
> 25687 barry     16   0 24552 2320  23m S  0.0  1.8   0:00.00 sshd
> 24373 root      16   0 29860 2184  28m S  0.0  1.7   0:00.00 dovecot-auth
> 24251 root      16   0 21968 2092  21m S  0.0  1.6   0:00.06 sshd
> 24378 dovecot   16   0 14224 1852  13m S  0.0  1.4   0:00.00 imap-login
> 24379 dovecot   16   0 14224 1852  13m S  0.0  1.4   0:00.00 imap-login
> 24380 dovecot   16   0 14224 1848  13m S  0.0  1.4   0:00.00 imap-login
> 24374 dovecot   16   0 14216 1844  13m S  0.0  1.4   0:00.00 pop3-login
> 24375 dovecot   16   0 14216 1844  13m S  0.0  1.4   0:00.00 pop3-login
> 24377 dovecot   16   0 14216 1844  13m S  0.0  1.4   0:00.00 pop3-login
> 24480 root      18   0 20984 1572  20m S  0.0  1.2   0:00.00 saslauthd
> 24485 root      18   0 20984 1572  20m S  0.0  1.2   0:00.00 saslauthd
> 25737 root      16   0  6544 1508 6200 S  0.0  1.2   0:00.00 bash
> 25829 root      16   0  6544 1504 6200 S  0.0  1.1   0:00.00 bash
> 25778 barry     16   0  6548 1408 6200 S  0.0  1.1   0:00.00 bash
> 25693 barry     15   0  6544 1404 6200 S  0.0  1.1   0:00.01 bash
> 24327 root      17   0  6400 1208 6200 S  0.0  0.9   0:00.00 mysqld_safe
> 25732 root      16   0 21844 1180  20m S  0.0  0.9   0:00.00 su
> 25812 root      15   0 21844 1180  20m S  0.0  0.9   0:00.00 su
> 24466 root      16   0  9736 1116 8792 S  0.0  0.9   0:00.00 crond
> 25874 root      16   0  6148 1112 5924 R  0.0  0.8   0:00.03 top
> 24262 root      17   0  8712  916 8336 S  0.0  0.7   0:00.00 xinetd
> 24242 root      16   0  3764  796 3552 S  0.0  0.6   0:00.00 dovecot
>     1 root      16   0  4752  624 4536 S  0.0  0.5   0:00.08 init
> 24232 root      16   0  3632  620 3444 S  0.0  0.5   0:00.00 syslogd
> 
> Even this is not enough memory to add a database to a virtualmin managed
> account (that I could only make earlier when I turned off a bunch of 
> services, including mysql and so the database wasn't made at domain 
> creation time.
> 
> So it looks like you need > 75 MB Ram to do that function ....how much
> more, I don't know.

All I can say is that the smallest machine I've run Webmin/Virtualmin on
lately has 256 MB of RAM ..

 - Jamie

[webmin-l] More memory tests

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

> That might be OK if it is your intention, or if it just evolved that
> way, maybe you can live with it - but can you let us know if you
> can/will make efforts to reel memory usage back in?
>
> I suppose I can help you with additional tests ....
>
>   
Jamie - here is a snapshot of top right after a reboot:

top - 18:43:58 up 2 min,  0 users,  load average: 0.07, 0.02, 0.00
Tasks:  34 total,   1 running,  33 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  
0.0% si
Mem:    131072k total,    58840k used,    72232k free,        0k buffers
Swap:        0k total,        0k used,        0k free,        0k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
24362 mysql     16   0  132m  24m  29m S  0.0 19.4   0:00.06 mysqld
24533 root      16   0 42308  10m  34m S  0.0  7.9   0:00.00 miniserv.pl
24507 root      16   0 38824 9732  31m S  0.0  7.4   0:00.00 miniserv.pl
24499 apache    18   0 99788 8432  94m S  0.0  6.4   0:00.00 httpd
24456 root      16   0 99788 8412  94m S  0.0  6.4   0:00.04 httpd
24426 root      16   0 32924 3796  30m S  0.0  2.9   0:00.01 sendmail
24440 smmsp     18   0 27796 3116  25m S  0.0  2.4   0:00.00 sendmail
25656 root      16   0 25596 2332  24m S  0.0  1.8   0:00.01 sshd
25773 root      16   0 25596 2332  24m S  0.0  1.8   0:00.01 sshd
25777 barry     16   0 24552 2328  23m S  0.0  1.8   0:00.00 sshd
25687 barry     16   0 24552 2320  23m S  0.0  1.8   0:00.00 sshd
24373 root      16   0 29860 2184  28m S  0.0  1.7   0:00.00 dovecot-auth
24251 root      16   0 21968 2092  21m S  0.0  1.6   0:00.06 sshd
24378 dovecot   16   0 14224 1852  13m S  0.0  1.4   0:00.00 imap-login
24379 dovecot   16   0 14224 1852  13m S  0.0  1.4   0:00.00 imap-login
24380 dovecot   16   0 14224 1848  13m S  0.0  1.4   0:00.00 imap-login
24374 dovecot   16   0 14216 1844  13m S  0.0  1.4   0:00.00 pop3-login
24375 dovecot   16   0 14216 1844  13m S  0.0  1.4   0:00.00 pop3-login
24377 dovecot   16   0 14216 1844  13m S  0.0  1.4   0:00.00 pop3-login
24480 root      18   0 20984 1572  20m S  0.0  1.2   0:00.00 saslauthd
24485 root      18   0 20984 1572  20m S  0.0  1.2   0:00.00 saslauthd
25737 root      16   0  6544 1508 6200 S  0.0  1.2   0:00.00 bash
25829 root      16   0  6544 1504 6200 S  0.0  1.1   0:00.00 bash
25778 barry     16   0  6548 1408 6200 S  0.0  1.1   0:00.00 bash
25693 barry     15   0  6544 1404 6200 S  0.0  1.1   0:00.01 bash
24327 root      17   0  6400 1208 6200 S  0.0  0.9   0:00.00 mysqld_safe
25732 root      16   0 21844 1180  20m S  0.0  0.9   0:00.00 su
25812 root      15   0 21844 1180  20m S  0.0  0.9   0:00.00 su
24466 root      16   0  9736 1116 8792 S  0.0  0.9   0:00.00 crond
25874 root      16   0  6148 1112 5924 R  0.0  0.8   0:00.03 top
24262 root      17   0  8712  916 8336 S  0.0  0.7   0:00.00 xinetd
24242 root      16   0  3764  796 3552 S  0.0  0.6   0:00.00 dovecot
    1 root      16   0  4752  624 4536 S  0.0  0.5   0:00.08 init
24232 root      16   0  3632  620 3444 S  0.0  0.5   0:00.00 syslogd

Even this is not enough memory to add a database to a virtualmin managed 
account (that I could only make earlier when I turned off a bunch of 
services, including mysql and so the database wasn't made at domain 
creation time.

So it looks like you need > 75 MB Ram to do that function ....how much 
more, I don't know.

Best,

Barry

Re: [webmin-l] updates

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

Jamie Cameron wrote:
>>> I imagine they are running out of memory and dieing.
>>>
>>>  - Jamie
>> Is there a way for me to find out the peak size? There doesn't seem to
>> be anything in the log file, at least for now...
> 
> I guess all you can do is keep running the top command, to see how high
> memory usage gets..
> 
>  - Jamie
> 

Jamie -

I am seeing some modules that are crashing when top is reporting memory
usage as low as ~20MB on a 128MB (no swap) system.

In addition to virtualmin, the mail handling modules seem to be pretty
memory hungry.

So are user deletion modules - I had trouble deleting a system user,
ultimately had to hand edit the passwd file to drop the user.

Is is possible to have the large libraries split up and loaded only as
needed?

Otherwise, it looks like both webmin and  virtualmin (and probably
usermin too) have outgrown their general usefulness, including for use
managing relatively small machines.

That might be OK if it is your intention, or if it just evolved that
way, maybe you can live with it - but can you let us know if you
can/will make efforts to reel memory usage back in?

I suppose I can help you with additional tests ....


Best,

Barry

Re: [webmin-l] passwords in the clear

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

On 12/Dec/2006 13:34 Barry wrote ..
> Jamie Cameron wrote:
> > On 12/Dec/2006 12:24 Barry wrote ..
> >> I just noticed that the Edit Mailbox frame, reached from VirtualminGPL
> >> displays the password in the clear next to the Leave Unchanged option.
> >>
> >> This is probably not a "Good Idea (TM)".
> > 
> > Actually, I think it is :-)
> > 
> > Virtualmin stores the plain-text password for mailbox users whenever
> it can,
> > as it is needed if MySQL or DAV access is enabled for a user after he
> is created.
> > So I figured I might as well display that password too .. after all,
> anyone who
> > has permissions to see it could change it anyway.
> > 
> >  - Jamie
> > 
> Jamie -
> I'd argue that saving the passwords in the clear is not a good idea 
> either ...

It is unfortunately inevitable for some features to work :(

> I'd also argue separately that having permission to change a pw is not
> the same as saying you might as well display it because shoulder surfing
> becomes an issue in the latter case, and since people are likely to use
> weak and repeated passwords in places, showing a user's password to an
> admin could be abused too...

Good point - I will probably add a module config option to not display them ..

 - Jamie

Re: [webmin-l] passwords in the clear

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

Jamie Cameron wrote:
> On 12/Dec/2006 12:24 Barry wrote ..
>> I just noticed that the Edit Mailbox frame, reached from VirtualminGPL
>> displays the password in the clear next to the Leave Unchanged option.
>>
>> This is probably not a "Good Idea (TM)".
> 
> Actually, I think it is :-)
> 
> Virtualmin stores the plain-text password for mailbox users whenever it can,
> as it is needed if MySQL or DAV access is enabled for a user after he is created.
> So I figured I might as well display that password too .. after all, anyone who
> has permissions to see it could change it anyway.
> 
>  - Jamie
> 
Jamie -
I'd argue that saving the passwords in the clear is not a good idea 
either ...

I'd also argue separately that having permission to change a pw is not 
the same as saying you might as well display it because shoulder surfing 
becomes an issue in the latter case, and since people are likely to use 
weak and repeated passwords in places, showing a user's password to an 
admin could be abused too...


Best,

Barry

Re: [webmin-l] passwords in the clear

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

On 12/Dec/2006 12:24 Barry wrote ..
> I just noticed that the Edit Mailbox frame, reached from VirtualminGPL
> displays the password in the clear next to the Leave Unchanged option.
> 
> This is probably not a "Good Idea (TM)".

Actually, I think it is :-)

Virtualmin stores the plain-text password for mailbox users whenever it can,
as it is needed if MySQL or DAV access is enabled for a user after he is created.
So I figured I might as well display that password too .. after all, anyone who
has permissions to see it could change it anyway.

 - Jamie

[webmin-l] passwords in the clear

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

I just noticed that the Edit Mailbox frame, reached from VirtualminGPL 
displays the password in the clear next to the Leave Unchanged option.

This is probably not a "Good Idea (TM)".

Best,

Barry

Re: [webmin-l] updates

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

On 12/Dec/2006 11:46 Barry wrote ..
> Jamie Cameron wrote:
> > On 11/Dec/2006 22:32 Barry wrote ..
> >> Jamie Cameron wrote:
> >>> On 11/Dec/2006 18:52 Barry wrote ..
> >>>> OK - a little more info after some more testing -
> >>>>
> >>>> It does indeed seem I am running into a low memory condition.
> >>>>
> >>>> How much memory does miniserv/webmin need anyway?
> >>>>
> >>>> Miniserv.error gives me the sparse message:
> >>>>
> >>>> Out of memory!
> >>>>
> >>>> which doesn't help me help it :(
> >>> It really doesn't use much memory.. on one of my systems it uses 95
> MB
> >> with a bunch
> >>> of Webmin libraries pre-loaded to speed up modules. On another machine
> >> without
> >>> preloading, only 10MB is used.
> >>>
> >>> By default, module preloading is only setup automatically if using
> Virtualmin
> >> pro.
> >>
> >> It kinda looks now like the modules that display lists are the most
> >> likely to cause this error. I have seen this behavior before, but I
> >> guess I didn't make the connection until now.
> >>
> >> Maybe it is not miniserv itself as much as teh perl programs? Virtual
> >> min is one, I have seen it when listing aliases and especially when
> >> listing email for a user account, or the results of a query on email.
> I
> >> also saw it just now when trying to compose an email by a brand new
> >> user. Maybe there is some peak usage there?
> >>
> >> Also I wonder if the new frames them causes extra hits on the server,
> >> causing it to spawn new children more often then it would have before?
> >> Is there some configuration I can do in that area, like I can with apache>
> >>
> >> As for the discrepancy between the system info display in webmin and
> top
> >> and free, the latter two seem to be in close alignment, a lot closer
> the
> >> webmin display is to either.
> >>
> >> BTW, I just noticed I had pop/pop3s and smtp active in zinetd, and I
> >> also had sendmail and dovecot running as services. I just turned off
> the
> >> xinetd ones, will see if that helps any.
> > 
> > I suspect that Webmin is using up too much memory when you do things
> > that cause large perl libraries to be loaded, in particular those in
> > the Virtualmin module (which has a huge -lib.pl file). It would be
> > useful to know the peak size of a miniserv.pl process before it exits
> ...
> > I imagine they are running out of memory and dieing.
> > 
> >  - Jamie
> 
> Is there a way for me to find out the peak size? There doesn't seem to
> be anything in the log file, at least for now...

I guess all you can do is keep running the top command, to see how high
memory usage gets..

 - Jamie

Re: [webmin-l] updates

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

Jamie Cameron wrote:
> On 11/Dec/2006 22:32 Barry wrote ..
>> Jamie Cameron wrote:
>>> On 11/Dec/2006 18:52 Barry wrote ..
>>>> OK - a little more info after some more testing -
>>>>
>>>> It does indeed seem I am running into a low memory condition.
>>>>
>>>> How much memory does miniserv/webmin need anyway?
>>>>
>>>> Miniserv.error gives me the sparse message:
>>>>
>>>> Out of memory!
>>>>
>>>> which doesn't help me help it :(
>>> It really doesn't use much memory.. on one of my systems it uses 95 MB
>> with a bunch
>>> of Webmin libraries pre-loaded to speed up modules. On another machine
>> without
>>> preloading, only 10MB is used.
>>>
>>> By default, module preloading is only setup automatically if using Virtualmin
>> pro.
>>
>> It kinda looks now like the modules that display lists are the most 
>> likely to cause this error. I have seen this behavior before, but I 
>> guess I didn't make the connection until now.
>>
>> Maybe it is not miniserv itself as much as teh perl programs? Virtual 
>> min is one, I have seen it when listing aliases and especially when 
>> listing email for a user account, or the results of a query on email. I
>> also saw it just now when trying to compose an email by a brand new 
>> user. Maybe there is some peak usage there?
>>
>> Also I wonder if the new frames them causes extra hits on the server, 
>> causing it to spawn new children more often then it would have before?
>> Is there some configuration I can do in that area, like I can with apache>
>>
>> As for the discrepancy between the system info display in webmin and top
>> and free, the latter two seem to be in close alignment, a lot closer the
>> webmin display is to either.
>>
>> BTW, I just noticed I had pop/pop3s and smtp active in zinetd, and I 
>> also had sendmail and dovecot running as services. I just turned off the
>> xinetd ones, will see if that helps any.
> 
> I suspect that Webmin is using up too much memory when you do things
> that cause large perl libraries to be loaded, in particular those in
> the Virtualmin module (which has a huge -lib.pl file). It would be
> useful to know the peak size of a miniserv.pl process before it exits ...
> I imagine they are running out of memory and dieing.
> 
>  - Jamie

Is there a way for me to find out the peak size? There doesn't seem to 
be anything in the log file, at least for now...

Best,

Barry

Re: [webmin-l] problem with email address

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

On 12/Dec/2006 08:35 and...@fr... wrote ..
> Hi all,
> I configured webmin auto - upgrade , specifically update modules on
> schedule; I also configured to send email update report to my address.
> 
> Onfortunately, on only one server, I cannot make postfix undertsand that
> it has to send e-mail with domain following the username@,
> insted of fully qualified hostname following the username@.
> 
> I think the problem could be the integrated configuration between postfix
> and mysql, to menage via postfixadmin any virtual domain.
> 
> To work-around this problem of mine, isn't any way to modify the sender
> (from) of webmin update reports ?
> 
> If I send a mail via webmin, user mailbox, and manually put
> we...@my... everything is OK
> (the problem is related to my server receiving the email: the email from
> webmin@fullyqualifiedhostname are refused by the anti-spam rules)

You can actually configure the From: address that Webmin uses, although
it is a little obscure. Go to the Read User Mail module, click on Module
Config, and change the 'From: address to use when Webmin sends email'
field to we...@my....

Because code in that module is used by many others for sending email,
it's settings for SMTP and the From: address effect pretty much all email
sent by Webmin.

 - Jamie

Re: [webmin-l] updates

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

On 11/Dec/2006 22:32 Barry wrote ..
> Jamie Cameron wrote:
> > On 11/Dec/2006 18:52 Barry wrote ..
> >> OK - a little more info after some more testing -
> >>
> >> It does indeed seem I am running into a low memory condition.
> >>
> >> How much memory does miniserv/webmin need anyway?
> >>
> >> Miniserv.error gives me the sparse message:
> >>
> >> Out of memory!
> >>
> >> which doesn't help me help it :(
> > 
> > It really doesn't use much memory.. on one of my systems it uses 95 MB
> with a bunch
> > of Webmin libraries pre-loaded to speed up modules. On another machine
> without
> > preloading, only 10MB is used.
> > 
> > By default, module preloading is only setup automatically if using Virtualmin
> pro.
> 
> It kinda looks now like the modules that display lists are the most 
> likely to cause this error. I have seen this behavior before, but I 
> guess I didn't make the connection until now.
> 
> Maybe it is not miniserv itself as much as teh perl programs? Virtual 
> min is one, I have seen it when listing aliases and especially when 
> listing email for a user account, or the results of a query on email. I
> also saw it just now when trying to compose an email by a brand new 
> user. Maybe there is some peak usage there?
> 
> Also I wonder if the new frames them causes extra hits on the server, 
> causing it to spawn new children more often then it would have before?
> Is there some configuration I can do in that area, like I can with apache>
> 
> As for the discrepancy between the system info display in webmin and top
> and free, the latter two seem to be in close alignment, a lot closer the
> webmin display is to either.
> 
> BTW, I just noticed I had pop/pop3s and smtp active in zinetd, and I 
> also had sendmail and dovecot running as services. I just turned off the
> xinetd ones, will see if that helps any.

I suspect that Webmin is using up too much memory when you do things
that cause large perl libraries to be loaded, in particular those in
the Virtualmin module (which has a huge -lib.pl file). It would be
useful to know the peak size of a miniserv.pl process before it exits ...
I imagine they are running out of memory and dieing.

 - Jamie

[webmin-l] problem with email address

[<and...@fr...>]

Hi all,
I configured webmin auto - upgrade , specifically update modules on
schedule; I also configured to send email update report to my address.

Onfortunately, on only one server, I cannot make postfix undertsand that it
has to send e-mail with domain following the username@,
insted of fully qualified hostname following the username@.

I think the problem could be the integrated configuration between postfix
and mysql, to menage via postfixadmin any virtual domain.

To work-around this problem of mine, isn't any way to modify the sender
(from) of webmin update reports ?

If I send a mail via webmin, user mailbox, and manually put
we...@my... everything is OK
(the problem is related to my server receiving the email: the email from
webmin@fullyqualifiedhostname are refused by the anti-spam rules)

thanks on advance,

Andrea


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