Re: MTA - MLM - DNS configuration question
On Sat, 30 Jun 2001 23:31, Eirik Dentz wrote: Well it actually hosts the company web site, so doubling it up as a mailing list server probably isn't a good idea. On the other hand a cluster arrangement does sound like a good idea. Any suggested reading on setting up web/email/database server clusters? I don't know of any good documentation on such things. I am considering writing some howto type documents and a magazine article about it myself. If anyone has references to other work in this area please let me know. -- http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/projects.html Projects I am working on http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
Russell Coker wrote: On Sat, 30 Jun 2001 23:31, Eirik Dentz wrote: Well it actually hosts the company web site, so doubling it up as a mailing list server probably isn't a good idea. On the other hand a cluster arrangement does sound like a good idea. Any suggested reading on setting up web/email/database server clusters? How about the Linux Virtual Server Project? http://www.linuxvirtualserver.org ? Pete They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. -- Benjamin Franklin, 1759 http://www.aclusf.org/library/constitution/constitution.html -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
On Sat, 30 Jun 2001 23:31, Eirik Dentz wrote: Well it actually hosts the company web site, so doubling it up as a mailing list server probably isn't a good idea. On the other hand a cluster arrangement does sound like a good idea. Any suggested reading on setting up web/email/database server clusters? I don't know of any good documentation on such things. I am considering writing some howto type documents and a magazine article about it myself. If anyone has references to other work in this area please let me know. -- http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/projects.html Projects I am working on http://www.coker.com.au/~russell/ My home page
Re: MTA - MLM - DNS configuration question
Russell Coker wrote: On Sat, 30 Jun 2001 23:31, Eirik Dentz wrote: Well it actually hosts the company web site, so doubling it up as a mailing list server probably isn't a good idea. On the other hand a cluster arrangement does sound like a good idea. Any suggested reading on setting up web/email/database server clusters? How about the Linux Virtual Server Project? http://www.linuxvirtualserver.org ? Pete They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. -- Benjamin Franklin, 1759 http://www.aclusf.org/library/constitution/constitution.html
Re: MTA - MLM - DNS configuration question
RC It is definately possible. It makes sense to me, this is what
RC MX records were designed for!
I agree but, this is also what name server delegation is designed for!
And this is THE way to go in your case.
Let's say you put the mailing list software on the web server. The CPU usage is
low but the I/O gets high because of the traffic on your list(s). You want to
move the mailing list server (let's call it lists.isp.com) to another machine.
The easiest way to do that is to insert a new MX record for lists.isp.com with a
high number, lower your ttl's on your DNS, wait for propagation and turn off
your MTA on your web server. This way, all mail will seemlessly go to the new
machine once your web server refuses SMTP connections.
This would be a lot easier to do if your IS dept delegates you the domain
lists.isp.com. Many changes will have to be made to the zone in a relative short
period of time for you to move the lists transparently.
RC Of course you'll have to convince the IS department to change
RC their DNS server...
True for my suggestion also though their overhead would be less if they
just delegated to you (so you don't bug them as you bring servers
on-line).
My point exactly.
If you need more details as far as setting up the zone and the MX records for a
possible transition, feel free to ask.
Haim.
--
@o=qw(Nu Wjoepxt2l Mjdsptpgu);@p=(jt gvdlfe vq,jt tiju,tvdlt);
for($i=0;$i@p;$i++){$o[$i]=~y/b-y/a-z/;$p[$i]=~y/b-y/a-z/;}
while(){print $o[((rand)*3)]. .$p[((rand)*3)].\n;}
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
RC It is definately possible. It makes sense to me, this is what
RC MX records were designed for!
I agree but, this is also what name server delegation is designed for!
And this is THE way to go in your case.
Let's say you put the mailing list software on the web server. The CPU usage is
low but the I/O gets high because of the traffic on your list(s). You want to
move the mailing list server (let's call it lists.isp.com) to another machine.
The easiest way to do that is to insert a new MX record for lists.isp.com with a
high number, lower your ttl's on your DNS, wait for propagation and turn off
your MTA on your web server. This way, all mail will seemlessly go to the new
machine once your web server refuses SMTP connections.
This would be a lot easier to do if your IS dept delegates you the domain
lists.isp.com. Many changes will have to be made to the zone in a relative short
period of time for you to move the lists transparently.
RC Of course you'll have to convince the IS department to change
RC their DNS server...
True for my suggestion also though their overhead would be less if they
just delegated to you (so you don't bug them as you bring servers
on-line).
My point exactly.
If you need more details as far as setting up the zone and the MX records for a
possible transition, feel free to ask.
Haim.
--
@o=qw(Nu Wjoepxt2l Mjdsptpgu);@p=(jt gvdlfe vq,jt tiju,tvdlt);
for($i=0;$i@p;$i++){$o[$i]=~y/b-y/a-z/;$p[$i]=~y/b-y/a-z/;}
while(){print $o[((rand)*3)]. .$p[((rand)*3)].\n;}
Re: MTA - MLM - DNS configuration question
I've been optimizing a number of email servers for a client now, AND I can tell you that ANY disk access apart from the mail system will severely impact the speed of the server, unless you're talking real low volume. As soon as you start to get around 200-300K per day, you're gonna need to seperate the www from the mail if possible. Of course, it also depends on how heavy the web traffic is as well... but think about the above first. If you give us more figures we could give you a better idea. Sincerely, Jason - Original Message - From: Eirik Dentz [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, June 30, 2001 10:43 AM Subject: MTA - MLM - DNS configuration question I've been asked to set up a MLM along side a web server and I wanted to ask a quick question to the experienced, before I put a lot of time into setting this up. My situation: I'm responsible for an web server that has sendmail installed and is configured to send email via Perl and PHP scripts, but doesn't receive any. Recently my supervisor has asked me to set up mailing list capabilities on the web server, because the IS department doesn't have the capacity to do so at present and they want tight integration between the mailing lists and the web server (web based subscribe/unsubscibe pages for lists and archives). Based upon various threads that I've followed on this list and other research, I've decided to switch from sendmail to postfix and to use the GNU Mailman MLM (I'm open to other suggestions...) My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? I realize that it is generally a bad idea to set up your web server to do double duty as an email server. Any ideas regarding at what message volume a mail server will have a serious negative impact on a web server running on the same machine would be appreciated. Thanks in advance eirik -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
From: Jason Lim [EMAIL PROTECTED] Reply-To: Jason Lim [EMAIL PROTECTED] Date: Sat, 30 Jun 2001 17:42:21 +0800 To: Eirik Dentz [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: Re: MTA - MLM - DNS configuration question I've been optimizing a number of email servers for a client now, AND I can tell you that ANY disk access apart from the mail system will severely impact the speed of the server, unless you're talking real low volume. As soon as you start to get around 200-300K per day, Hmm that low huh? The web server hosts the company web site and it sends approximately 60 MB/day. The mailing-list server on the other hand would be more of a test at this point and it would probably be very very low traffic (2-3 lists with 10-20 subscribers each). Would it involve a lot of pain to transfer the Mailing lists to a separate email server further down the road? I wouldn't think it would be too bad, but I'm sure you have a better idea than myself. Thanks for taking the time to respond. eirik you're gonna need to seperate the www from the mail if possible. Of course, it also depends on how heavy the web traffic is as well... but think about the above first. If you give us more figures we could give you a better idea. Sincerely, Jason -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
On Saturday 30 June 2001 04:43, Eirik Dentz wrote: My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? It is definately possible. It makes sense to me, this is what MX records were designed for! Thanks. I thought so, but I don't have first hand experience setting this up, and I didn't want to make a fool of myself asking the IS guys, so I figured I'd make a fool of myself here instead ;-) Of course you'll have to convince the IS department to change their DNS server... Oh I'm not too worried about convincing them. They'll be relieved that they aren't being asked to do anything more than this. I realize that it is generally a bad idea to set up your web server to do double duty as an email server. Any ideas regarding at what message volume a mail server will have a serious negative impact on a web server running on the same machine would be appreciated. If a primary duty of the web server is to manage the mailing lists then IMHO it makes a lot of sense to have this! Of course this means that you have a lot of important things on one box. Considered a cluster arrangement of some sort? Well it actually hosts the company web site, so doubling it up as a mailing list server probably isn't a good idea. On the other hand a cluster arrangement does sound like a good idea. Any suggested reading on setting up web/email/database server clusters? Thanks for taking the time to respond. eirik -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
I've been optimizing a number of email servers for a client now, AND I can tell you that ANY disk access apart from the mail system will severely impact the speed of the server, unless you're talking real low volume. As soon as you start to get around 200-300K per day, you're gonna need to seperate the www from the mail if possible. Of course, it also depends on how heavy the web traffic is as well... but think about the above first. If you give us more figures we could give you a better idea. Sincerely, Jason - Original Message - From: Eirik Dentz [EMAIL PROTECTED] To: debian-isp@lists.debian.org Sent: Saturday, June 30, 2001 10:43 AM Subject: MTA - MLM - DNS configuration question I've been asked to set up a MLM along side a web server and I wanted to ask a quick question to the experienced, before I put a lot of time into setting this up. My situation: I'm responsible for an web server that has sendmail installed and is configured to send email via Perl and PHP scripts, but doesn't receive any. Recently my supervisor has asked me to set up mailing list capabilities on the web server, because the IS department doesn't have the capacity to do so at present and they want tight integration between the mailing lists and the web server (web based subscribe/unsubscibe pages for lists and archives). Based upon various threads that I've followed on this list and other research, I've decided to switch from sendmail to postfix and to use the GNU Mailman MLM (I'm open to other suggestions...) My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? I realize that it is generally a bad idea to set up your web server to do double duty as an email server. Any ideas regarding at what message volume a mail server will have a serious negative impact on a web server running on the same machine would be appreciated. Thanks in advance eirik -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: MTA - MLM - DNS configuration question
On Saturday 30 June 2001 04:43, Eirik Dentz wrote: My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? It is definately possible. It makes sense to me, this is what MX records were designed for! Of course you'll have to convince the IS department to change their DNS server... I realize that it is generally a bad idea to set up your web server to do double duty as an email server. Any ideas regarding at what message volume a mail server will have a serious negative impact on a web server running on the same machine would be appreciated. If a primary duty of the web server is to manage the mailing lists then IMHO it makes a lot of sense to have this! Of course this means that you have a lot of important things on one box. Considered a cluster arrangement of some sort? -- http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/ Postal SMTP/POP benchmark http://www.coker.com.au/projects.html Projects I am working on http://www.coker.com.au/~russell/ My home page
Re: MTA - MLM - DNS configuration question
From: Jason Lim [EMAIL PROTECTED] Reply-To: Jason Lim [EMAIL PROTECTED] Date: Sat, 30 Jun 2001 17:42:21 +0800 To: Eirik Dentz [EMAIL PROTECTED], debian-isp@lists.debian.org Subject: Re: MTA - MLM - DNS configuration question I've been optimizing a number of email servers for a client now, AND I can tell you that ANY disk access apart from the mail system will severely impact the speed of the server, unless you're talking real low volume. As soon as you start to get around 200-300K per day, Hmm that low huh? The web server hosts the company web site and it sends approximately 60 MB/day. The mailing-list server on the other hand would be more of a test at this point and it would probably be very very low traffic (2-3 lists with 10-20 subscribers each). Would it involve a lot of pain to transfer the Mailing lists to a separate email server further down the road? I wouldn't think it would be too bad, but I'm sure you have a better idea than myself. Thanks for taking the time to respond. eirik you're gonna need to seperate the www from the mail if possible. Of course, it also depends on how heavy the web traffic is as well... but think about the above first. If you give us more figures we could give you a better idea. Sincerely, Jason
Re: MTA - MLM - DNS configuration question
On Saturday 30 June 2001 04:43, Eirik Dentz wrote: My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? It is definately possible. It makes sense to me, this is what MX records were designed for! Thanks. I thought so, but I don't have first hand experience setting this up, and I didn't want to make a fool of myself asking the IS guys, so I figured I'd make a fool of myself here instead ;-) Of course you'll have to convince the IS department to change their DNS server... Oh I'm not too worried about convincing them. They'll be relieved that they aren't being asked to do anything more than this. I realize that it is generally a bad idea to set up your web server to do double duty as an email server. Any ideas regarding at what message volume a mail server will have a serious negative impact on a web server running on the same machine would be appreciated. If a primary duty of the web server is to manage the mailing lists then IMHO it makes a lot of sense to have this! Of course this means that you have a lot of important things on one box. Considered a cluster arrangement of some sort? Well it actually hosts the company web site, so doubling it up as a mailing list server probably isn't a good idea. On the other hand a cluster arrangement does sound like a good idea. Any suggested reading on setting up web/email/database server clusters? Thanks for taking the time to respond. eirik
Re: MTA - MLM - DNS configuration question
RC == Russell Coker [EMAIL PROTECTED] writes: RC On Saturday 30 June 2001 04:43, Eirik Dentz wrote: My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? RC It is definately possible. It makes sense to me, this is what RC MX records were designed for! I agree but, this is also what name server delegation is designed for! RC Of course you'll have to convince the IS department to change RC their DNS server... True for my suggestion also though their overhead would be less if they just delegated to you (so you don't bug them as you bring servers on-line). cheers, BM
MTA - MLM - DNS configuration question
I've been asked to set up a MLM along side a web server and I wanted to ask a quick question to the experienced, before I put a lot of time into setting this up. My situation: I'm responsible for an web server that has sendmail installed and is configured to send email via Perl and PHP scripts, but doesn't receive any. Recently my supervisor has asked me to set up mailing list capabilities on the web server, because the IS department doesn't have the capacity to do so at present and they want tight integration between the mailing lists and the web server (web based subscribe/unsubscibe pages for lists and archives). Based upon various threads that I've followed on this list and other research, I've decided to switch from sendmail to postfix and to use the GNU Mailman MLM (I'm open to other suggestions...) My question is this: The DNS is under the jurisdiction of the IS department and the MX record @mydomain.org is set up to point at their email server. Does it make sense and is it possible to set up another MX record: @lists.mydomain.org which will point at the web server? I realize that it is generally a bad idea to set up your web server to do double duty as an email server. Any ideas regarding at what message volume a mail server will have a serious negative impact on a web server running on the same machine would be appreciated. Thanks in advance eirik
