Re: [vchkpw] ldap or mysql
If you use MySQL I would highly recommend doing a clean install of all your domains and user information. Setup a new server and migrate using scripts to reload all domain/user info. An in place conversion has proven problematic for us with getting acurate dir_control information into MySQL. It seems starting with empty tables and loading all domain and user information via vadddomain and vadduser works just fine though. DAve Fernando Costa de Almeida wrote: Is LDAP support of Vpopmail mature enough for a large production server? Has anyone used it succesfully in such a case? From README.ldap : Using vpopmail with LDAP is not very common. The LDAP modules are functional, but because it not as popular as using CDB or MySQL auth systems, you should be wary of implementing the LDAP system on a production server. I'm using Vpopmail+LDAP for about 2 years, with no problems. But, for older versions of Vpopmail, I had to do some nasty things in order to make it compile correctly. From README.mysql : Using vpopmail with MySQL is becoming increasingly popular. The code is well tested and can be considered to be just as stable as the default CDB authentication system. Michael. And you will have much more flexibility. I did choose LDAP because of this performance, but if I had to make the choice again, I would choose mysql instead.
RE: [vchkpw] ldap or mysql
> > > > > Is LDAP support of Vpopmail mature enough for a large > production server? > > Has anyone used it succesfully in such a case? > > From README.ldap : > > Using vpopmail with LDAP is not very common. > The LDAP modules are functional, but because it not as > popular as using > CDB or MySQL auth systems, you should be wary of > implementing the LDAP > system on a production server. I'm using Vpopmail+LDAP for about 2 years, with no problems. But, for older versions of Vpopmail, I had to do some nasty things in order to make it compile correctly. > > From README.mysql : > > Using vpopmail with MySQL is becoming increasingly popular. > The code is well tested and can be considered to be just > as stable as the default CDB authentication system. > > Michael. > And you will have much more flexibility. I did choose LDAP because of this performance, but if I had to make the choice again, I would choose mysql instead.
Re: [vchkpw] ldap or mysql
- Original Message - From: "Omar Armas" <[EMAIL PROTECTED]> > > Is LDAP support of Vpopmail mature enough for a large production server? > Has anyone used it succesfully in such a case? >From README.ldap : Using vpopmail with LDAP is not very common. The LDAP modules are functional, but because it not as popular as using CDB or MySQL auth systems, you should be wary of implementing the LDAP system on a production server. >From README.mysql : Using vpopmail with MySQL is becoming increasingly popular. The code is well tested and can be considered to be just as stable as the default CDB authentication system. Michael.
[vchkpw] ldap or mysql
Is LDAP support of Vpopmail mature enough for a large production server? Has anyone used it succesfully in such a case? Omar
Re: [vchkpw] LDAP or MYSQL module ??
Michael - I'd be happy to. I've copied the list since someone else may find the additional detail useful. Michael Bellears wrote: Hi Nick, What I do is run a local read-only copy of the mysql database on each of my qmail servers, which are replicated off of a master read-write copy. Delivering roughly 500K messages per day to this cluster I'm running three servers for qmail, vpopmail, courier-imap/pop3, squirrelmail. Sounds nice - We are about to migrate to a multi-server environment, and was wondering if you could answer a couple of questions for me. Are your servers sitting behind a local director or equiv.? Are you running a common nfs share for your clients mailbox's (i.e. /home/vpopmail/domains)? What happens if your master mysql box fails? Thanks in advance, MB We're using a redundant pair of Foundry ServerIron load balancers, though I strongly discourage you from buying such devices. My experience is that they are very unbalanced in their load balancing, and their interfaces (web and cli) are hideous for every day usage. Other experiences of mine say to buy a pair of cheap linux boxes and use Linux Virtual Servers (LVS) as a load balancing interface. Its far more configurable to balance based on load, and is far, far cheaper to deploy. We're mounting /var/vpopmail/domains as an nfs mount for all of our users maildirs from a pair of Sun E250s (which also run the MySQL read/write DB). These are hooked up to a mirrored pair of Raid5 arrays, with the mirroring being done by Veritas Volume Manager, and the boxes are clustered with Veritas Cluster Services for high availability. Again I'd not actually recommend using this setup unless you've got these or similar pieces already paid for and lying around. Either real filers (such as Network Appliance, Procomm or others) or linux boxes using tools from the Linux-HA project are what I'd recommend. I'm looking to replace our E250s with a pair of NetApp F825c filer heads with clustering and the whole ball of wax as high availability is an absolute necessity in my network. As I mentioned previously the MySQL boxes are clustered, and the MySQL database itself is on shared SCSI storage (part of the volume manager setup). When I replace the E250s I'm thinking about instead setting up a circular MySQL replication scheme, since MySQL tags replication data with the originating server, so once it makes its way through the circle it won't be applied again. My only problem so far is that this would end up like a token ring network, in that one dead link and the whole thing is unusable. Otherwise I'll end up using linux-ha and some perl scripts to dynamically reconfigure a pair of servers as Master/Slave (when the master crashes, the slave becomes the master, and when the previous master comes back up it automagically knows to become the new slave). Let me know if there's any thing else I can answer. Hope this helps, Nick Harring Webley Systems
Re: [vchkpw] LDAP or MYSQL module ??
I'm running a set of domains with about 50K users now using mysql. Depending on how you're going to structure the qmail+vpopmail environment there're a number of things you can do to overcome the slightly slower mysql. What I do is run a local read-only copy of the mysql database on each of my qmail servers, which are replicated off of a master read-write copy. Delivering roughly 500K messages per day to this cluster I'm running three servers for qmail, vpopmail, courier-imap/pop3, squirrelmail. Two are dual P3s at 1ghz, and one is a dual Athlon XP 2400+, and performance is more than acceptable (its a pretty darn fast cluster imho). The master read/write mysql database is running on a semi-ancient Sun E250, however there's not a lot of writing going on as I turned off mysql logging in vpopmail. Hope that helps, Nick Harring Rodrigo Pinheiro wrote: Hi, I've a domain with 30,000 accounts +/-, it's running on iplanet solutions I need migrate that solution to free software, because iplanet is very expensive I'd like to know which module to use for autentication, LDAP or MYSQL ?? SQL is more slow LDAP, but I seen that MYSQL module is more used and more accept. Thanks. Rodrigo Pinheiro
Re: [vchkpw] LDAP or MYSQL module ??
I think you would to quite well with mysql, might be little bit slower but by practicality I believe it has more positive points than LDAP. Plus considering todays hardware is so fast and cheap. I think little bit speed penalty is not too big problem. Well you can always buy faster cpu and more memory or multiple cpu. Also onsidering that buying a supreme hardware would only cost a small fraction of the money you pay for iplanet. Anyhow :) of course this is my opinion. I am sure people will have different opinions Evren On Mon, 25 Aug 2003, Rodrigo Pinheiro wrote: > Hi, > > I've a domain with 30,000 accounts +/-, it's running on iplanet solutions > I need migrate that solution to free software, because iplanet is very > expensive > > I'd like to know which module to use for autentication, > > LDAP or MYSQL ?? > > SQL is more slow LDAP, > > but I seen that MYSQL module is more used and more accept. > > Thanks. > > > Rodrigo Pinheiro > > >
[vchkpw] LDAP or MYSQL module ??
Hi, I've a domain with 30,000 accounts +/-, it's running on iplanet solutions I need migrate that solution to free software, because iplanet is very expensive I'd like to know which module to use for autentication, LDAP or MYSQL ?? SQL is more slow LDAP, but I seen that MYSQL module is more used and more accept. Thanks. Rodrigo Pinheiro
