Sendmail on a LAN
by JD
I read the wiki for setting up and configuring sendmail
http://www.wikihow.com/Configure-Sendmail
Clearly, a full setup of DNS server for your domain
must be set up, per this wiki, along with mx records ...etc.
Does this prevent one from settiing up and using sendmail
on a LAN to send and receive email to/from the outside world?
The main router is set up to forward all necessary ports
(smtp, pop, pop3, ....etc) to the machine which would run
sendmail. The firewall on the machine is set up to allow
packets to/from these ports.
I understand that some things need to be set up so that sendmail
sends headers that use a routable IP address as the source of
the message. Is it possible to make sendmail use my router's
public IP address in the message headers? How?
13 years, 9 months
slightly OT: using fetchmail on a MS Exchange 2007 IMAP server
by Globe Trotter
Hi,
Sorry this is a bit OT, but you guys here are so knowledgeable and helpful that I thought I would extend my luck. I have been trying to set up fetchmail to fetch e-mail from a MS Exchange 2007 IMAP4 server and then read it locally. So here is my .fetchmailrc file.
set daemon 600
poll exchange.uia.edu with proto AUTO ssl
mda 'procmail -f-'
keep
I invoke fetchmail using the command:
%fetchmail
This "works" (after supplying password) except that if I try this from another machine, I get that I have no messages that are not seen. Specifically, I get that all the kept messages have been seen. How do I fix this?
Sorry if the questions are not clear. I am not very well-versed with all this and am happy to explain my problems/questions further.
Any and all help would be greatly appreciated!!
Best wishes,
Trotter
13 years, 9 months
F-13 qnw wireless routers -
by Bob Goodwin
This is a current updated f-13 computer connected to our home LAN. I
have been using a Buffalo Airstation WLI-TX4-AG300N, essentially an
Ethernet wireless adapter to access the system. I recently bought a
Netgear WNDR330 dual band "N" wireless router and am having a lot of
trouble getting it to perform as advertised. This is a less than 20
year old typical two story frame house. I would expect the walls to
be essentially transparent to RF energy.
Normally the distance between the router and the wireless adapter is
less than forty feet and there has been no problem operating in the
2.4 gHz band however I find that with equipment located as it has
been for several years the new router will not function at that
distance in the 5 gHz band. In fact to get any connection at all I
have to reduce the distance to about ten feet which pretty well
negates the advantage of a wireless system. I decided several years
ago that running cables in this house is out of the question.
I am on the third WNDR3300 router for other reasons but all of them
have had weak signal problems in the 5 gHz band. I just got around
to experimenting with that problem over the last two days.
Does anyone have experience with a similar system? I would be
interested to know if my observations are typical or if I have an
equipment problem. I am considering obtaining a different wireless
adapter device to replace the Buffalo unit since it is the only
thing unchanged here.
Any suggestions or observations will be appreciated. I feel,like I
am operating in a vacuum with no one to consult.
Bob
--
13 years, 9 months
Fedora 13 networking performs extremely well
by Uwe Zimmermann
Hello,
our product "MIMIC Simulator" has been running on Fedora for a long time
(eg. see
http://www.gambitcomm.com/site/support/support_platforms.shtml
). But, we have seen a steady decline in performance over successive
versions of Fedora (eg. see
http://gambitcomm.blogspot.com/2010/06/mimic-1030-performance-test-report...
Our application is somewhat unique in that it can create many (10s of
thousands) IP aliases, opens sockets to multiple ports on each.
Only with Fedora 13 (kernel version 2.6.33.6-147.fc13.x86_64) have we
seen a surprising performance improvement, where running 20,000 simulated
agents is the same as running 10, in terms of networking performance. At
first we could not believe it, but subsequent tests have confirmed that
we indeed are seeing the improved performance. The specific improvement
seems to be that the kernel seems to be efficiently demultiplexing among
all open sockets to deliver received messages from the network card.
Can some expert point me at a specific fix (spec, kernel module, source
code revision) that could account for this? It would be in the networking
code, possibly the socket demultiplexer. I have looked for this for a
while and just cannot find it. This change would be after Fedora 12.
Any hint would be appreciated.
Thank you in advance.
Uwe Zimmermann
Gambit Communications
13 years, 9 months
FC13 network install using local repos
by Bill Davidsen
I'm trying to do an install from a network export of the install DVD and
a repo created from /var/cache/yum which has every upgrade and install
RPM I've ever pulled off the network. I tried putting the copy of
/var/cache/yum in a subdirectory and running 'createrepo' (worked AFAIK)
but I can't seem to export the correct thing to get the repo used. I
thought the relative path was in the repodata subdir, but that doesn't
seem to be getting used.
Can someone point me to a doc?
I just turn on the keepcache flag and then have all the RPMs I've ever
actually used (as opposed to trying to keep a full and current set), and
if something is obsolete I will just replace it the first time I
download it.
--
Bill Davidsen <davidsen(a)tmr.com>
"We can't solve today's problems by using the same thinking we
used in creating them." - Einstein
13 years, 9 months
Re: Sendmail on a LAN
by PaulCartwright
On 08/17/2010 12:36 PM, Tim wrote:
> Dyndns, and other such things, are useful for giving yourself a hostname
> that you can control, to a static IP. But aren't going to be much good
> if you have a dynamic IP. Private webserving's easy enough with a
> varying IP, mail serving's another matter.
>
You can update dyndns every month even if your ip changes. MY IP lease
used to last a month.. YMMV
I decided to go the extra mile & $5 a month & get a static IP..
--
Paul Cartwright
Registered Linux user # 367800
13 years, 9 months
Fedora release policy and KDE
by Niki Kovacs
Hi,
I'm quite new to Fedora (though using Linux for the last 10 years or so), and
I have a question about Fedora's release policy. I understand it's a "bleeding
edge" distro. New package versions seem more or less integrated as soon as
they come out.
How about KDE point releases? Is KDE 4.5 due to be part of Fedora 13 one day,
as soon as the packagers deem it ready? Or will I have to either wait for
Fedora 14 for that, or configure some third party repository?
Cheers,
Niki
13 years, 9 months