[Lula] Mail server ip changed issue.

[Jeff Carlson]

Peter Benjamin wrote:
> cfengine is going to remain an addon and never come with any distro,
> imo.

Packages are available for just about every distro I can think of, and 
every other OS.  What makes an Operating System?  Linux is just a 
kernel.  Then there's libC (glibc).  Then init, bash, coreutils, etc. 
Which one of these components crosses the line, add this one and now 
it's an operating system?  Where does the inclusion or exclusion of 
cfengine fit into that equation?

So, as I said before, LDAP....

> Except when your primary mail server is detected being off line,
> right? What's your software of choice for monitoring the primary?

If that were a problem I could unplug the other box.  Besides, even if I 
don't, it's soft fail.  Chris and Dave will have to re-queue my messages 
and send again later.

And the other question, Nagios.

> Ho, ho.  What a bandwidth hog this spamd will be for your incoming 
> pipe.  The overhead for the packet header will increase by 1500!!! It
> could keep your download bandwidth saturated.  Guess you do not 
> access the net from home?  <g>

Wow, re-do your calculation.  Sure, an ethernet packet can be 1500 
bytes, but if the layer 7 payload is 1 byte, the packet will not be 1500 
bytes.  What is the size of the IP header?  I don't remember exactly but 
it's no more than 80 bytes.  I think it's under 40 bytes.  I could look 
it up but laziness prevails.  And for another thing, I don't get a 
steady, unending stream of email to my home server.  Read up on 
OpenBSD's spamd.  I'm sure you'll see it doesn't really consume very 
much bandwidth.  It also responds slowly so less traffic is encouraged 
to come in on a connection.  I think it tries to get it down to one 
packet per second.

> It seems your requirements for a mail server are based solely on the
> premise that the needs of the end users is limited to just a single
> end user, you, as a hobby/vanity mail server.

Yup, that's pretty much it.  I wasn't suggesting I would have done this 
same stuff at a job.  Sorry if that was inadvertently implied.  I block 
Argentina, Brazil, China, Hong Kong, Japan, Korea, Malaysia, Mexico, 
Nigeria, Russia, Singapore, Taiwan, Thailand, and Turkey from my mail 
server at home.  I could never do that for a job.  I don't know anyone 
in those countries.  The company might need to do business with someone 
in any of them.  The needs are very different.

For anybody else who wants to set up these country based lists, see 
blackholes.us.  Oh and I have some shell scripts for converting their 
data into BIND zone files.  Let me know if anybody is interested.

_______________________________________________
Lula mailing list
Lula at lula.org
http://www.lula.org/mailman/listinfo/lula