Re: [CentOS] clustered mail server?

No, mail spools/queues do not need replication. Stuff in the queue are usually deleted in a second and such dynamic change is not worth replicating. If you do put the queue on a distributed filesystem, in most cases you cannot have more than one instance running save for sendmail. outboun

Re: [CentOS] clustered mail server?

Rudi Ahlers wrote: Karanbir Singh wrote: Rudi Ahlers wrote: Well, that's one of the problems I foresee, but also the fact that each email has a unique message ID, so I don't know if the backup server will pickup the changed messages ID's or not? I have been thinking of running a MySQL backed

Re: [CentOS] clustered mail server?

John R Pierce wrote: Christopher Chan wrote: re: mail servers specifically, there are two seperate classes of storage that would need replication... One is the mail spools and queues as used by the MTA (postfix, sendmail, etc), and the other are the user mail folder(s) as used by the local

Re: [CentOS] clustered mail server?

Christopher Chan wrote: re: mail servers specifically, there are two seperate classes of storage that would need replication... One is the mail spools and queues as used by the MTA (postfix, sendmail, etc), and the other are the user mail folder(s) as used by the local delivery agent (procma

Re: [CentOS] clustered mail server?

John R Pierce wrote: Rudi Ahlers wrote: Sorry guys, I want to stick with a SMTP / IMAP / POP3 server, not webmail. I'll be using Horde for webmail as well though there are two general classes of clustered systems, high availability, and high performance. HA clusters are usually active/s

Re: [CentOS] clustered mail server?

Karanbir Singh wrote: Rudi Ahlers wrote: Well, that's one of the problems I foresee, but also the fact that each email has a unique message ID, so I don't know if the backup server will pickup the changed messages ID's or not? I have been thinking of running a MySQL backed mail server, but hav

Re: [CentOS] clustered mail server?

Les Mikesell wrote: Rudi Ahlers wrote: You might take a look at SquirrelMail. It integrates well with cyrus imap. I've started liking roundcube a bit more than squirrelmail. but roundcube is very basic. SquirrelMail has a *LOT* of plugins and can be made to do almost anything these days.

Re: [CentOS] CentOS-DS

Neil Muller wrote: On 18/05/2008, at 4:25 AM, Karanbir Singh wrote: Neil Muller wrote: I think it's a java based app. You can download from http://www.sun.com/download/index.jsp?cat=Identity%20Management&tab=3&subcat=Directory%20Server does it work with openjdk as yet ? I've only instal

Re: [CentOS] clustered mail server?

re: mail servers specifically, there are two seperate classes of storage that would need replication... One is the mail spools and queues as used by the MTA (postfix, sendmail, etc), and the other are the user mail folder(s) as used by the local delivery agent (procmail or whattever), and re

Re: [CentOS] CentOS-DS

On 18/05/2008, at 4:25 AM, Karanbir Singh wrote: Neil Muller wrote: I think it's a java based app. You can download from http://www.sun.com/download/index.jsp?cat=Identity%20Management&tab=3&subcat=Directory%20Server does it work with openjdk as yet ? I've only installed it on Solaris but

[CentOS] Fedora IRC

There is a IRC channel in the Freenode network for #fedora-newmexico users, if interested. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] Re: [CentOS-announce] Impact of the Debian OpenSSL vulnerability

Daniel de Kok wrote: - What does our upstream think about this? - What do the OpenSSH developers think about this? Someone is going to need to ask those questions of the people... -- Karanbir Singh : http://www.karan.org/ : [EMAIL PROTECTED] ___ Cen

Re: [CentOS] clustered mail server?

Rudi Ahlers wrote: You might take a look at SquirrelMail. It integrates well with cyrus imap. I've started liking roundcube a bit more than squirrelmail. but roundcube is very basic. SquirrelMail has a *LOT* of plugins and can be made to do almost anything these days. And the community aro

Re: [CentOS] clustered mail server?

On Sat, 17 May 2008 20:09:50 +0100 Karanbir Singh <[EMAIL PROTECTED]> wrote: > I believe you can run DRBD so primary writes dont return till the > secondary write also completes. No idea how that impacts performance :D Default mode of drbd operation is synchronous as you mention and its performa

Re: [CentOS] clustered mail server?

Rudi Ahlers wrote: Well, that's one of the problems I foresee, but also the fact that each email has a unique message ID, so I don't know if the backup server will pickup the changed messages ID's or not? I have been thinking of running a MySQL backed mail server, but have a feeling it will hav

Re: [CentOS] clustered mail server?

Rudi Ahlers wrote: Sorry guys, I want to stick with a SMTP / IMAP / POP3 server, not webmail. I'll be using Horde for webmail as well though there are two general classes of clustered systems, high availability, and high performance. HA clusters are usually active/standby, and might use

Re: [CentOS] clustered mail server?

Karanbir Singh wrote: David G. Mackay wrote: You might take a look at SquirrelMail. It integrates well with cyrus imap. I've started liking roundcube a bit more than squirrelmail. but roundcube is very basic. SquirrelMail has a *LOT* of plugins and can be made to do almost anything these da

Re: [CentOS] clustered mail server?

John R Pierce wrote: Karanbir Singh wrote: email is essentially an on-disk setup, so just setup any software you want ( I recommend roundcube over squirrelmail as a nice web interface - basic, but usable ). Just put the email storage on the drbd mounted drive and you should be ok. drbd i

Re: [CentOS] Re: OOM condition with file-4.17-9.0.1.el5

MHR wrote: On Sat, May 17, 2008 at 5:36 AM, John <[EMAIL PROTECTED]> wrote: Ok, I will try. The machine config Machine is a HP DL360G3, 2gb Mem, 2Gb swap running CentOS5.1 x86 This might not have anything to do with your problem, but I have found that busy systems usually do better wi

Re: [CentOS] Re: OOM condition with file-4.17-9.0.1.el5

On Sat, May 17, 2008 at 5:36 AM, John <[EMAIL PROTECTED]> wrote: > > Ok, I will try. > The machine config > Machine is a HP DL360G3, 2gb Mem, 2Gb swap running CentOS5.1 x86 > This might not have anything to do with your problem, but I have found that busy systems usually do better with a swap size

Re: [CentOS] Centos Freezing

Anne Wilson wrote: http://www.karan.org/blog/index.php/2007/11/01 I'm getting a 404 on that, Karanbir oops, needs a trailing / . try this : http://www.karan.org/blog/index.php/2007/11/01/ -- Karanbir Singh : http://www.karan.org/ : [EMAIL PROTECTED]

Re: [CentOS] Centos Freezing

On Saturday 17 May 2008 19:19:40 Karanbir Singh wrote: > Robert Spangler wrote: > > On Saturday 17 May 2008 08:12, B.J. McClure wrote: > >> I had a similar situation on CentOS 4.x and on 5.0, different boxes. > >> In both cases it was resolved by replacing a bad stick of RAM. If the > >> box can

Re: [CentOS] clustered mail server?

John R Pierce wrote: drbd is asynchronous replication, isn't it?so if the active 'master' fails just as its written and acknowledged an incoming message, that message could be lost if the replication hasn't completed by the time of failure ? I believe you can run DRBD so primary writes do

Re: [CentOS] ext3 errors (md device related?)

Les Mikesell wrote: Back to this problem again. I did a new mkfs.ext3 and ran more than a week before hitting this again: Mar 14 04:12:29 linbackup1 kernel: md3: rw=0, want=14439505280, limit=1465143808 Mar 14 04:12:29 linbackup1 kernel: EXT3-fs error (device md3): ext3_readdir: directory

Re: [CentOS] clustered mail server?

Karanbir Singh wrote: email is essentially an on-disk setup, so just setup any software you want ( I recommend roundcube over squirrelmail as a nice web interface - basic, but usable ). Just put the email storage on the drbd mounted drive and you should be ok. drbd is asynchronous replica

Re: [CentOS] CentOS-DS

Neil Muller wrote: I think it's a java based app. You can download from http://www.sun.com/download/index.jsp?cat=Identity%20Management&tab=3&subcat=Directory%20Server does it work with openjdk as yet ? -- Karanbir Singh : http://www.karan.org/ : [EMAIL PROTECTED] __

Re: [CentOS] clustered mail server?

David G. Mackay wrote: You might take a look at SquirrelMail. It integrates well with cyrus imap. I've started liking roundcube a bit more than squirrelmail. but roundcube is very basic. SquirrelMail has a *LOT* of plugins and can be made to do almost anything these days. And the community a

Re: [CentOS] clustered mail server?

Rudi Ahlers wrote: For fail over on the webserver & samba, the heartbeat + rsync works well, but I don't know where to look for the email stuff. I don't need anything fancy, but a shared calendar & address book would be great. It's a 10 user network email is essentially an on-disk setup, so j

Re: [CentOS] Centos Freezing

Robert Spangler wrote: On Saturday 17 May 2008 08:12, B.J. McClure wrote: I had a similar situation on CentOS 4.x and on 5.0, different boxes. In both cases it was resolved by replacing a bad stick of RAM. If the box can be off line I would suggest a 24 hour run of memtest. On my systems

Re: [CentOS] Centos Freezing

On Saturday 17 May 2008 08:12, B.J. McClure wrote: > I had a similar situation on CentOS 4.x and on 5.0, different boxes. In > both cases it was resolved by replacing a bad stick of RAM. If the box > can be off line I would suggest a 24 hour run of memtest. On my systems > it only occurred

[CentOS] xen kernel showing only one processor on SMP machine

Hi there, I'm running an ibm xseries 345/dual Xeon 2.66GHz, 2.6.18-53.1.14.el5xen #1 SMP, and cat /proc/cpuinfo shows me only one processor. Apparently something strange happening with ACPI. What am I doing wrong? Thank you! Selected bits from dmesg: - Using ACPI (MAD

Re: [CentOS] clustered mail server?

On Sat, 2008-05-17 at 10:30 +0200, Rudi Ahlers wrote: > Thank you for your input. I can't justify exchange (and don't want MS) > for 10 users. I do want IMAP though, and the calendar & address book > would be nice. This IMO has nothing todo with CentOS though, but at the > same time it shouldn't

Re: [CentOS] ndiswrapper and 4K stacks problem (system freezes)

On Sat, May 17, 2008 at 6:35 AM, Timothy Kesten <[EMAIL PROTECTED]> wrote: > Hi Folks, > > I'm trying tio install WLAN - USB - Stick Netgear WG111v3. > > ndiswrapper -i wg111v3 > > works. > > I can see ndiswrapper -l > >wg111v3: driver installed >device (0846:4260) present > > But a

[CentOS] ndiswrapper and 4K stacks problem (system freezes)

Hi Folks, I'm trying tio install WLAN - USB - Stick Netgear WG111v3. ndiswrapper -i wg111v3 works. I can see ndiswrapper -l wg111v3: driver installed device (0846:4260) present But after modprobe ndiswrapper the system freezes. Troublshooting on ndiswrapper-sites says: It's

Re: [CentOS] Re: [CentOS-announce] Impact of the Debian OpenSSL vulnerability

On Sat, May 17, 2008 at 12:25 PM, Ralph Angenendt <[EMAIL PROTECTED]> wrote: > If you take a look at there are so many > applications which might have broken keys even on non-Debian systems > that I think offering a tool for just ssh keys might give people a wrong >

[CentOS] Re: OOM condition with file-4.17-9.0.1.el5

Hello Filip, I forgot the word NOT in this part of my message. > For me, the problem was solved, and I had enough proof for my self to say, > I assume file(1) was the problem. I agree, this is not enough for some > developers to be convinced, and the problem file is NOT easily found. But > I b

RE: [CentOS] clustered mail server?

-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Chan Sent: Saturday, May 17, 2008 2:02 PM To: centos@centos.org Subject: Re: [CentOS] clustered mail server? > Thank you for your input. I can't justify exchange (and don't want MS) > for 10 use

[CentOS] Re: OOM condition with file-4.17-9.0.1.el5

"Filipe Brandenburger" <[EMAIL PROTECTED]> schreef in bericht news:[EMAIL PROTECTED] > On Fri, May 16, 2008 at 8:30 AM, John > <[EMAIL PROTECTED]> wrote: >> We just encountered several serious Out of Memory Problems caused by the >> file 4.17-9.0.1.EL5 utility on our mail Gateway. CentOS 5.1 ke

Re: [CentOS] OT: Top Posting

On Fri, 2008-05-16 at 20:55 -0400, Matt Shields wrote: > > I think the thing that's annoying about top posting is explained with > this example (grabbed from a Boston Linux & Unix Group signature). > I'll have to admit when I'm not thinking about it, there have been a > few times where I've top p

RE: [CentOS] Centos Freezing

On Sat, 2008-05-17 at 06:02 -0400, John wrote: > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Robert Spangler > Sent: Friday, May 16, 2008 9:19 PM > To: CentOS mailing list > Subject: Re: [CentOS] Centos Freezing > > On Thursday 15 May 2008 21:51,

Re: [CentOS] kernel-2.6.9-67.0.15.plus.c4.i586.rpm

Released ... there was a problem with one of the patches upstream added to the kernel and this failed on the i586 build the first time. I did get a good build the second time after I fixed that patch. Thanks so much. Your efforts are greatly appreciated. Barry ___

Re: [CentOS] kernel-2.6.9-67.0.15.plus.c4.i586.rpm

Barry Brimer wrote: Are there plans to release kernel-2.6.9-67.0.15.plus.c4.i586.rpm ?? Thanks, Barry Barry, Released ... there was a problem with one of the patches upstream added to the kernel and this failed on the i586 build the first time. I did get a good build the second time after

[CentOS] CentOS-announce Digest, Vol 39, Issue 8

Send CentOS-announce mailing list submissions to [EMAIL PROTECTED] To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reac

Re: [CentOS] CentOS-DS

I think it's a java based app. You can download from http://www.sun.com/download/index.jsp?cat=Identity%20Management&tab=3&subcat=Directory%20Server Neil On 17/05/2008, at 8:41 PM, Ralph Angenendt wrote: Christopher Chan wrote: There is also Sun Directory Server which is completely free.

Re: [CentOS] kernel-2.6.9-67.0.15.plus.c4.i586.rpm

On Fri, May 16, 2008 at 5:45 PM, Barry Brimer <[EMAIL PROTECTED]> wrote: > Are there plans to release kernel-2.6.9-67.0.15.plus.c4.i586.rpm ?? > > Thanks, > Barry I am sure Mr. Hughes will add those missing kernels shortly. Are you currently running the 2.6.9-67.0.xx i586 kernel ? Multiple peop

Re: [CentOS] CentOS-DS

Christopher Chan wrote: > There is also Sun Directory Server which is completely free. I have trouble locating the Sources. Ralph pgpzDgw5F6m9o.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/li

Re: [CentOS] Re: [CentOS-announce] Impact of the Debian OpenSSL vulnerability

Karanbir Singh wrote: > Dag pointed out that Suse is also considering setting up a blacklist of > this nature. I dont mind looking at something like this within CentOS if > someone wants to make a case for it. Would it be better to just have > some tool ( Daniel already brought that up! ) that coul

Re: [CentOS] Re: OOM condition with file-4.17-9.0.1.el5

John wrote: > Some is always the first one running into a bug problem. > > The purpose of my mail is sharing that I ran into a file util problem. If I > ran into, eventually some one else will to. And also how to quick and dirty > fix the problem, if you can't wait for an official fix, provided

Re: [CentOS] clustered mail server?

Thank you for your input. I can't justify exchange (and don't want MS) for 10 users. I do want IMAP though, and the calendar & address book would be nice. This IMO has nothing todo with CentOS though, but at the same time it shouldn't be limited to which Linux distro I'm using. As you have sa

RE: [CentOS] Centos Freezing

-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Spangler Sent: Friday, May 16, 2008 9:19 PM To: CentOS mailing list Subject: Re: [CentOS] Centos Freezing On Thursday 15 May 2008 21:51, Karanbir Singh wrote: > Hi Robert, > > Robert Spangler wrot

Re: [CentOS] clustered mail server?

Karanbir Singh wrote: Rudi Ahlers wrote: I'm looking for a working HOWTO / Tutorial / sample setup of setting up a clustered email server. I know I can setup a CentOS cluster with I don't have a problem to solve, but I don't know which mail server to use either. But, like I said, id

Re: [CentOS] clustered mail server?

Christopher Chan wrote: I don't have a problem to solve, but I don't know which mail server to use either. But, like I said, ideally I'd like to use one of the groupware type mailserver (POP3, SMTP, IMAP, calendar, address book, etc) What you want is a centralised and yet distributed user