Hello everyone - I did some more poking at this last night, and I think
I have devised a work-around. The basic process is to have logwatch
output a file and then call s-nail from a script to send the file.
Step 1 - Add these lines to /etc/logwatch/conf/logwatch.conf:
Filename = /temp/logwatchreport.txt
Output = file
Step 2 - Create a shell script named /usr/local/bin/sendlogwatchreport.
It simply a call to s-nail:
/usr/bin/mailx -m /temp/logwatchreport.txt \
-s "Logwatch report for centos7.billgee.local" \
-r logwatch@centos7.billgee.local \
--batch-mode \
bgee@xxxxxxxxxxxxxxx
The "-m" parameter takes the named file and makes it the body of the
email message. Note that the default logwatch call to a mailer uses the
"-t" parameter which expects the input to be a template. The template
includes lines at the top which are turned into the email headers for
subject, to and from fields.
Step 3 - Modify /etc/s-nail.rc. This line is changed:
set asksend
changes to
unset asksend
Without this s-nail gets stuck waiting for user input that will never come.
Step 4 - Add the shell script to the cron.daily list of tasks. I did
this by creating a hard link.
ln /usr/local/bin/sendlogwatchreport /etc/cron.daily/sendlogwatchreport
More testing is required for this. I think there are some permission
problems. I tried to use the /tmp directory, but files that logwatch
puts there disappear before the script can use them. Creating /temp
with 777 permissions is an attempt to work around this.
When run from a root prompt, logwatch and sendlogwatchreport result in a
nicely readable email message. I am not sure what will happen when
anacron runs the process. It will take an overnight cycle to find out.
===============
Bill Gee
On 1/19/23 15:00, Robert Heller wrote:
It is called "Quoted Printable". There should be something in the E-Mail
header that indicates this (Content-Transfer-Encoding header). Maybe either
Logwatch or s-nail is leaving out this header.
https://en.wikipedia.org/wiki/Quoted-printable
At Thu, 19 Jan 2023 15:50:37 -0500 CentOS mailing list <centos@xxxxxxxxxx> wrote:
=20 is an ASCII space character, and =3D is an ascii "=" (equal) sign.
I've seen various emailed documents that mangle them as you see, but if I
ever knew the cause, my tired old brain no longer remembers.
Fred
On Thu, Jan 19, 2023 at 2:42 PM Bill Gee <bgee@xxxxxxxxxxxxxxx> wrote:
Now that I have a test CentOS9 system set up, I am trying to get it to
send me logwatch reports via email. S-nail is proving very frustrating.
It almost works ... But not quite!
The main problem is bogus characters in the logwatch report. Here is a
section of the report I get through email:
==================
=20
################### Logwatch 7.5.5 (01/22/21) ####################=20
Processing Initiated: Thu Jan 19 13:31:57 2023
Date Range Processed: yesterday
( 2023-Jan-18 )
Period is day.
Detail Level of Output: 5
Type of Output/Format: email / text
Logfiles for Host: centos7.billgee.local
##################################################################=20
=20
--------------------- Kernel Audit Begin ------------------------=20
Number of audit daemon starts: 1=20
=20
**Unmatched Entries**
audit: type=3D1403 audit(1674073255.247:3): auid=3D4294967295
ses=3D429=
4967295 lsm=3Dselinux res=3D1: 1 Time(s)
auditd[517]: audit dispatcher initialized with q_depth=3D1200 and 1
act=
ive plugins: 1 Time(s)
=20
---------------------- Kernel Audit End -------------------------=20
=20
--------------------- Chrony report Begin ------------------------=20
MS Name/IP address Stratum Poll Reach LastRx Last sample
=
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
^* server3.17.168.192.IN-AD> 4 6 377 42 -16us[ -23us] ± 9=
716us
Name/IP Address NP NR Span Frequency Freq Skew Offset
Std=
Dev
================================
What are all those =20 and =30 strings for? How do I make them go away?
I have been experimenting with a line in /etc/s-nail.rc.
set ttycharset=utf-8
That is the only value for this that produces anything useful. If I set
it to charset-7bit or charset-8bit, then s-nail complains about invalid
syntax on the "set mta=" line. What????
I just don't get it. Can someone shed some light on this?
For what it is worth, a test CentOS8 system using mailx (the REAL
mailx!) works perfectly. So do all of my CentOS7 and Fedora systems.
--
===============
Bill Gee
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