Re: Postfix + LDAP + Cluster
Good point for ldap - perhaps have a local ldap mirror in each server... On Tue, Jun 1, 2010 at 8:36 PM, Ed wrote: > Is this just a hot swap or some ghost servers? > > The best way is to set up your failover at the DNS level and at the > LDAP cluster. A heartbeat can bring on the mirror postfix if the > primary fails. You want to be dropping your LDAP info to a flat file > for postfix to work from on a regular interval - no reason for postfix > to stop if it can't reach the LDAP(s) "Temporary lookup failure". > Also, I would guess there is a database in there somewhere for the > email themselves - just make that a cluster too. > > I don't think Postfix is stateful on its own, just a queu that only > clears an email after delivery is confirmed to the next queu. If the > postfix machine dies before a message gets delivered, the message will > still be in the delivery queu, ready to be delivered. > or > http://readlist.com/lists/postfix.org/postfix-users/13/67961.html > or IPANY > http://www.gossamer-threads.com/lists/linuxha/users/63864 > > > On Sun, May 30, 2010 at 7:57 PM, Bryan O'Neal > wrote: >> Ok so I now have another postfix project (second one this week). This >> one specifies the following - CentOS servers, virtual users, ldap >> authentication (automatic user creation from ldap is a plus), and all >> mail and configs must be synced with a second box for redundancy. >> >> The configs are just an rsync issue, any recommendations on syncing mail? >> >> >> Any one want to give me there two cents or point to a favorite how too. >> --- >> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss >> > --- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Re: Postfix + LDAP + Cluster
Is this just a hot swap or some ghost servers? The best way is to set up your failover at the DNS level and at the LDAP cluster. A heartbeat can bring on the mirror postfix if the primary fails. You want to be dropping your LDAP info to a flat file for postfix to work from on a regular interval - no reason for postfix to stop if it can't reach the LDAP(s) "Temporary lookup failure". Also, I would guess there is a database in there somewhere for the email themselves - just make that a cluster too. I don't think Postfix is stateful on its own, just a queu that only clears an email after delivery is confirmed to the next queu. If the postfix machine dies before a message gets delivered, the message will still be in the delivery queu, ready to be delivered. or http://readlist.com/lists/postfix.org/postfix-users/13/67961.html or IPANY http://www.gossamer-threads.com/lists/linuxha/users/63864 On Sun, May 30, 2010 at 7:57 PM, Bryan O'Neal wrote: > Ok so I now have another postfix project (second one this week). This > one specifies the following - CentOS servers, virtual users, ldap > authentication (automatic user creation from ldap is a plus), and all > mail and configs must be synced with a second box for redundancy. > > The configs are just an rsync issue, any recommendations on syncing mail? > > > Any one want to give me there two cents or point to a favorite how too. > --- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Re: Slicehost / xen hosting size
From: Steve Phariss > Matt Graham wrote: >> From: Steve Phariss q >>> runs OSCommerce, Wordpress, Zenphoto, IMAP, Roundcube (or other webmail) >>> Any ideas on proper sizing? >> How much traffic per day does the server get? How much disk space do all >> the things installed and all the user data take up? >> FWIW, the smallest slicehost (256M/10G/150G) works reasonably well, but can >> and will become unresponsive and require a manual reboot if it gets a huge >> amount of traffic in a short time. http://crow202.org/slicehostd.html > Web Traffic is pretty low, about 50M a day, Plus about 2G/mo for email and > other traffic. I would need some sort of control panel (webmin perhaps) as > well. Slicehost doesn't provide a pointy-clicky anything. You can install and use whatever you want on a slicehost, though, which means you can easily put webmin on your slice if you so desire. > I am thinking the 256 plan should work from a traffic perspective, but > would it be enough for the apps? wordpress + mysql + apache2 + postfix on a 256M slice = works well. The thing is that I need to run something like the daemon referenced in the URL above, or things can and will stop working due to traffic spikes causing RAM exhaustion. I don't know the CPU/RAM requirements for OSCommerce or Zenphoto, though, so adjust for those things. -- Matt G / Dances With Crows The Crow202 Blog: http://crow202.org/wordpress/ There is no Darkness in Eternity/But only Light too dim for us to see --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Re: Slicehost / xen hosting size
Web Traffic is pretty low, about 50M a day, Plus about 2G/mo for email and other traffic. I would need some sort of control panel (webmin perhaps) as well. I am thinking the 256 plan should work from a traffic perspective, but, would it be enough for the apps? On Tue, Jun 1, 2010 at 8:21 AM, Matt Graham wrote: > From: Steve Phariss q > > looking at slicehost and a couple other hosts but I am not sure of the > size > > host I should get (or even the best company to go with). The website > runs > > OSCommerce, Wordpress, Zenphoto, IMAP, Roundcube (or other webmail) and > one > > or two various web apps for testing. She also hosts short term, low > traffic > > websites for misc uses. > > > > Any ideas on proper sizing? > > How much traffic per day does the server get? How much disk space do all > the > things installed and all the user data take up? What's the average load on > the machine? The answers to those questions will determine the size of the > host you need. I'm using the smallest slicehost available because I just > don't need that much CPU. > > FWIW, the smallest slicehost (256M/10G/150G) works reasonably well, but can > and will become unresponsive and require a manual reboot if it gets a huge > amount of traffic in a short time. I wrote a daemon that has worked very > well > at keeping a small slicehost up and responsive; > http://crow202.org/slicehostd.html > > -- > Matt G / Dances With Crows > The Crow202 Blog: http://crow202.org/wordpress/ > There is no Darkness in Eternity/But only Light too dim for us to see > > --- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Fwd: Google abandons windows...
-- Forwarded message -- From: gm5729 Date: Tue, Jun 1, 2010 at 14:35 Subject: Google abandons windows... To: gm5729 Message: 4 Date: Mon, 31 May 2010 23:10:42 -0700 From: Alan Dayley Subject: "Google Abandons Windows..." To: Main PLUG discussion list Message-ID: Content-Type: text/plain; charset=ISO-8859-1 Interesting. And makes sense! http://mashable.com/2010/05/31/google-windows/ Alan -- I agree. (bottom posting "because I can") If one could use a F/LOSS O.S., why wouldn't they? If/when I am using a "closed source" OS (never mind apps!), then there is INHERENTLY more potential for my PC to do what SOMEONE ELSE wants it to do (a virus author, a malware author, a wannabe advertiser, etc etc etc.), vs. what I want it to do. (not even to mention the authors of key loggers... !) I own that machine. I paid for it. (though it cost less than the annual price for my ISP!) So, I'd prefer it to do what *I* want, not what someone else wants it to do. Why would Google be any different? The main difference between them, and "ordinary" users, is that they tend to be tech savvy. (and, SMART in general). So I agree. -- Mike Schwartz Glendale AZ schwa...@acm.org - My tag sums it up for me...and would fit in this case. Since IBM's contract with Lenovo ended, they have been replacing desktops/laptops? with Macs as from my understanding company policy. gk -- Remember it's not that we have something to hide, we just have nothing we want to show. ---Keep tunnelling. --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Re: "Google Abandons Windows..."
On Mon, May 31, 2010 at 11:10 PM, Alan Dayley wrote: > Interesting. And makes sense! > > http://mashable.com/2010/05/31/google-windows/ > > Alan > --- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss I agree. (bottom posting "because I can") If one could use a F/LOSS O.S., why wouldn't they? If/when I am using a "closed source" OS (never mind apps!), then there is INHERENTLY more potential for my PC to do what SOMEONE ELSE wants it to do (a virus author, a malware author, a wannabe advertiser, etc etc etc.), vs. what I want it to do. (not even to mention the authors of key loggers... !) I own that machine. I paid for it. (though it cost less than the annual price for my ISP!) So, I'd prefer it to do what *I* want, not what someone else wants it to do. Why would Google be any different? The main difference between them, and "ordinary" users, is that they tend to be tech savvy. (and, SMART in general). So I agree. -- Mike Schwartz Glendale AZ schwa...@acm.org --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Re: Slicehost / xen hosting size
On Tue, 1 Jun 2010, Matt Graham wrote: From: Steve Phariss looking at slicehost and a couple other hosts but I am not sure of the size host I should get (or even the best company to go with). The website runs OSCommerce, Wordpress, Zenphoto, IMAP, Roundcube (or other webmail) and one or two various web apps for testing. She also hosts short term, low traffic websites for misc uses. Any ideas on proper sizing? How much traffic per day does the server get? How much disk space do all the things installed and all the user data take up? What's the average load on the machine? The answers to those questions will determine the size of the host you need. I'm using the smallest slicehost available because I just don't need that much CPU. I did a 'show and tell' talkthrough at a UAT meeting perhaps 6 weeks ago, of the 'pmman' virtual server product. One aspect it has is an ability to dial up ram and hard drive space (and bandwidth soft-caps) after the base install under the end user's control, in just seconds Steve, please contact me offlist for a 30 day trial instance, gratis, to see if it meets your needs. http://www.pmman.com/ -- Russ herrold --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
Re: Slicehost / xen hosting size
From: Steve Phariss > looking at slicehost and a couple other hosts but I am not sure of the size > host I should get (or even the best company to go with). The website runs > OSCommerce, Wordpress, Zenphoto, IMAP, Roundcube (or other webmail) and one > or two various web apps for testing. She also hosts short term, low traffic > websites for misc uses. > > Any ideas on proper sizing? How much traffic per day does the server get? How much disk space do all the things installed and all the user data take up? What's the average load on the machine? The answers to those questions will determine the size of the host you need. I'm using the smallest slicehost available because I just don't need that much CPU. FWIW, the smallest slicehost (256M/10G/150G) works reasonably well, but can and will become unresponsive and require a manual reboot if it gets a huge amount of traffic in a short time. I wrote a daemon that has worked very well at keeping a small slicehost up and responsive; http://crow202.org/slicehostd.html -- Matt G / Dances With Crows The Crow202 Blog: http://crow202.org/wordpress/ There is no Darkness in Eternity/But only Light too dim for us to see --- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
