Re: [CentOS] Mail Server Guides

[Adrian van Bloois]

Am 01.03.19 um 18:53 schrieb Ben Archuleta:

> I need to set up a new mail server to replace an aging CentOS 6.3 mail 
> server. I was wondering what were some of the best guides on the web for 
> Postfix (Maildir), Spamassassin, ClamAV, Dovecot?

In the list I miss a program to control clamav and spamassassin.
Many people use amavis, but my experience is not very favoufable with
this script.
I personally prefer MailScaaner, have a look at:
www.mailscanner.info for further details.
I use, and have used, this set in many circomstances even in large
commercial envrionments, and I'm very pleased with it, functinally
and in terms of stability.

Good luck
Adrian



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Re: [CentOS] RPM Transaction Failure

[Jonathan Billings]

On Mar 3, 2019, at 1:53 AM, Mark LaPierre  wrote:
> error: lua script failed: /usr/libexec/copy_jdk_configs.lua:272: attempt to 
> index global 'file' (a nil value)


Try following the instructions here: 
https://access.redhat.com/solutions/3573891 


# mkdir -p /var/lib/rpm-state


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[CentOS] Scanner problems HP4620 Jon LaBadie.

[Ger van Dijck]

Hi Jon ,


I agree it is a little bit confusing : On USB all runs fine . So Hplip ,  
cups , etc. is installed and functionates .


On WLAN , believe it or not printing and faxing runs fine ; So the Wifi  
communication is present and functionating , but the scanner function is  
not !


When running hp-check under USB (Discouvered Devices) the laptopcamera and  
the scanner is present and all goes fine . Under WLAN (hp-check) the  
laptopcamera is present , but the scanner not . Clear is the scanner  
function cannot functionate , Uncear is why can I print to the HP4620 ,  
fax with the HP4620 and NOT scan to the HP4620 while there must excists a  
wireless communication ?




This is an enigma .



I am curieus ,




Ger van Dijck.
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Re: [CentOS] Mail Server Guides

[Kenneth Porter]

--On Sunday, March 03, 2019 1:30 PM +0100 Adrian van Bloois 
 wrote:



I need to set up a new mail server to replace an aging CentOS 6.3 mail
server. I was wondering what were some of the best guides on the web for
Postfix (Maildir), Spamassassin, ClamAV, Dovecot?


In the list I miss a program to control clamav and spamassassin.
Many people use amavis, but my experience is not very favoufable with
this script.
I personally prefer MailScaaner


I like MIMEDefang for this. Install it with yum and then edit your MTA 
config to hook it up. It runs as a "milter" (mail filter) plugin in your 
MTA (Sendmail or Postfix) and a service that performs the scanning. A Perl 
script invokes SpamAssassin and/or ClamAV (and other similar programs) on 
each message part. A stock script is provided which you customize to 
implement your site policy. A commercial version with paid support is also 
available, with lots of nice management bells and whistles. Join the 
mailing list to get help operating it.





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Re: [CentOS] RPM Transaction Failure (SOLVED)

[Mark LaPierre]

On 3/3/19 10:01 AM, Jonathan Billings wrote:

On Mar 3, 2019, at 1:53 AM, Mark LaPierre  wrote:

error: lua script failed: /usr/libexec/copy_jdk_configs.lua:272: attempt to 
index global 'file' (a nil value)



Try following the instructions here: https://access.redhat.com/solutions/3573891 


# mkdir -p /var/lib/rpm-state


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Thank you Jonathan.

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Re: [CentOS] What files to edit when changing the sdX of hard drives?

[Jobst Schmalenbach]

On Fri, Mar 01, 2019 at 09:48:55AM -0600, Valeri Galtsev 
(galt...@kicp.uchicago.edu) wrote:
> 
> 
> On 2/28/19 10:04 PM, Jobst Schmalenbach wrote:
> > On Thu, Feb 28, 2019 at 05:19:49PM +0100, Nicolas Kovacs 
> > (i...@microlinux.fr) wrote:
> > > Le 28/02/2019 à 04:12, Jobst Schmalenbach a écrit :
> > > > I want to lock in the SDA/SDB/SDC for my drives
> > > 
> > > In short : use UUIDs or labels instead of hardcoding /dev/sdX.
> > 
> > I **KNOW** how to use UUID's ... this is NOT the reason why I am doing this!
> 
> Try to switch physical connections of second and third drives, then you most
> likely will have the correct "BIOS" order of physical drives. As, as far as

It seems I need to go that way as I learned that you cannot use UDEV to swtich 
the names of sdX as assigned by the kernel. You can only ADD (as in make an 
extra name) but not RENAME :-(.

It's weird though even in the BIOS they are assigned

 SDA (mirror 1)
 SDB (mirror 2)
 SDC (extra rsync/backup drive).

It's not nice, though. The problem arises because I will NEVER have a 
backup/rsync drive in a system when I do an install that includes resetting of 
partition tables of SOME of the drives - a backup drive is a holy grail.

So I created the mirror (i.e. partitioning and starting mdadm) withou the 
backup drive.

As soon as I put that one back in I cannot use and of the grub2 utils without 
those errors "missing drive" as suddenly the the mirrors are on SDA and SDC.

So there must be some bug somewhere as the grub2 utils do not look at the UUIDs 
but somehow at the hardware sdX.

Jobst


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