HOWTO Setup Nullmailer: Difference between revisions
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messages through a fixed set of "upstream" hosts. It is also designed | messages through a fixed set of "upstream" hosts. It is also designed | ||
to be secure. | to be secure. | ||
<br> | |||
We use nullmailer on a number of servers, where minimalist functionality is all that is required. All mail (typically only cron-job outputs, like '''logwatch''' and '''tripwire''' are then sent to our research-admin mailing-list, on ponyexpress.iat.sfu.ca. From ponyexpress, the admin-list will fire off copies to all subscribed research-administrators. | |||
== Install Nullmailer == | == Install Nullmailer == | ||
# emerge nullmailer -va | <font color=red>hostname</font> <font color=blue>~ #</font> '''emerge nullmailer -va''' | ||
This may pull in '''sys-process/supervise-scripts''' (or, you can emerge it manually), which will then require: | |||
<font color=red>hostname</font> <font color=blue>~ #</font> '''rc-update add svscan default''' | |||
<font color=red>hostname</font> <font color=blue>~ #</font> '''ln -fs /var/spool/nullmailer/service /service/nullmailer''' | |||
''(note: older servers use the /var/nullmailer directory, rather than /var/spool/nullmailer...)'' | |||
Note: you may have to create the '''/service''' directory first, by hand...<br> | |||
<br> | |||
and | |||
<font color=red>hostname</font> <font color=blue>~ #</font> '''/etc/init.d/svscan start''' | |||
== Configuration == | == Configuration == | ||
| Line 11: | Line 22: | ||
'''/etc/nullmailer/adminaddr''' | '''/etc/nullmailer/adminaddr''' | ||
admin@ | admin@ponyexpress.iat.sfu.ca | ||
'''/etc/nullmailer/defaultdomain''' | '''/etc/nullmailer/defaultdomain''' | ||
| Line 20: | Line 31: | ||
'''/etc/nullmailer/remotes''' | '''/etc/nullmailer/remotes''' | ||
ponyexpress.iat.sfu.ca smtp | |||
'''/etc/mailname''' | |||
$hostname.iat.sfu.ca | |||
== Status == | == Status == | ||
| Line 26: | Line 40: | ||
== Testing == | == Testing == | ||
Send a message to root, then wait a | (note: you may have to '''emerge mailx''' to get the '''mail''' command) | ||
<font color=red>hostname</font> <font color=blue>~ #</font> '''mail -s "this is a nullmailer test | <br> | ||
Send a message to root, then wait a brief moment for it to be picked up and sent onwards. | |||
<font color=red>hostname</font> <font color=blue>~ #</font> '''mail -s "this is a nullmailer test" root''' | |||
Type your message, complete it with a '''ctrl-D + Enter''' | Type your message, complete it with a '''ctrl-D + Enter''' | ||
If everything is going properly, the adminaddr should receive a shiny new message in a short period of time! | |||
==Clearing the Queue== | |||
<font color=red>hostname</font> <font color=blue>~ #</font> '''rm /var/spool/nullmailer/queue/*''' | |||
Latest revision as of 20:16, 27 February 2019
From the authour's web-site:
Nullmailer is a mail transport agent designed to only relay all its
messages through a fixed set of "upstream" hosts. It is also designed
to be secure.
We use nullmailer on a number of servers, where minimalist functionality is all that is required. All mail (typically only cron-job outputs, like logwatch and tripwire are then sent to our research-admin mailing-list, on ponyexpress.iat.sfu.ca. From ponyexpress, the admin-list will fire off copies to all subscribed research-administrators.
Install Nullmailer
hostname ~ # emerge nullmailer -va
This may pull in sys-process/supervise-scripts (or, you can emerge it manually), which will then require:
hostname ~ # rc-update add svscan default hostname ~ # ln -fs /var/spool/nullmailer/service /service/nullmailer (note: older servers use the /var/nullmailer directory, rather than /var/spool/nullmailer...)
Note: you may have to create the /service directory first, by hand...
and
hostname ~ # /etc/init.d/svscan start
Configuration
Edit the following files to configure the machine to send mail to our mailing server (Bismarck).
/etc/nullmailer/adminaddr
admin@ponyexpress.iat.sfu.ca
/etc/nullmailer/defaultdomain
iat.sfu.ca
/etc/nullmailer/me
$hostname.iat.sfu.ca
/etc/nullmailer/remotes
ponyexpress.iat.sfu.ca smtp
/etc/mailname
$hostname.iat.sfu.ca
Status
hostname ~ # mailq
Testing
(note: you may have to emerge mailx to get the mail command)
Send a message to root, then wait a brief moment for it to be picked up and sent onwards.
hostname ~ # mail -s "this is a nullmailer test" root Type your message, complete it with a ctrl-D + Enter
If everything is going properly, the adminaddr should receive a shiny new message in a short period of time!
Clearing the Queue
hostname ~ # rm /var/spool/nullmailer/queue/*