search for: spof

Hello, Attempting to setup a CA primary/standby as well as seperate puppetmaster servers (all running Apache/Passenger) behind another Apache/Passenger type load balancer. Clients are not getting certs:- err: Could not request certificate: Could not intern from s: nested asn1 error Clearly an SSL issue but not something I know a great deal about. loadbalancer.conf # Puppet Load Balancing

Is it possible to create a highly-available OCFS2 cluster (i.e., A storage cluster that mitigates the single point of failure [SPoF] created by storing an OCFS2 volume on a single LUN)? The OCFS2 Project Page makes this claim... > OCFS2 is a general-purpose shared-disk cluster file system for Linux capable of providing both high performance and high availability. ...but without backing-up the claim of high availability s...

Hi there Is it fair to compare the 2 solutions using Solaris 10 U2 and a commercial database (SAP SD scenario). The cache on the HW raid helps, and the CPU load is less... but the solution costs more and you _might_ not need the performance of the HW RAID. Has anybody with access to these units done a benchmark comparing the performance (and with the pricelist in hand) came to a conclusion.

hi everyone, I am planning on creating a local SAN via NFS(v4) and several redundant nodes. I have been using DRBD on linux before and now am asking whether some of you have experience on on-demand network filesystem mirrors. I have yet little Solaris sysadmin know how, but i am interesting whether there is an on-demand support for sending snapshots. I.e. not via a cron job, but via a

...on in between n-master servers (n=2 for your case). The replication is not yet fully tested, but Timo is actively working on this feature. The fear of lossing the imap session does not make sense (at least to me) as the client will reconnect automatically in the background. Like this you have no SPOF and no split-brain and you get the flexibility (if needed) to geographically distribute your servers in the the future. Keep each server with its own ip, connect to them via DNS (round robin etc etc). We are currently experimenting with a setup similar to this one, but with geographically distrib...

First off, let me say thanks to Mr. Eastep for such a solid and easy to use package. Seawall was the only ipchains ''package'' firewall I ever considered using, and Shorewall has been my first venture into the world of iptables. The deployment I have just completed (and now need to redo due to client requirement changes) was 100% straightforward and has been working flawlessly for

...sterisk use 3-digit extensions while switching prior 2-digit extensions to the old PBX Con: - Costs depending on your setup (Quad-Bri Junghanns costs about 600 Euro, Octo-Bri about 1000 don't know about PRI Cards or other vendors as Digium) - Risk management. Asterisk becomes SPOF for whole telephony system (at least for inbound/outbound calls) In our company we will probably setup your scenario 2 for integration of some voip-Users and voicemail functionality. Just my 2 cents, Stefan -- Stefan M?rkle Netpioneer GmbH Leiter Knowledge Center...

...extra speed (his hasn''t been proven yet). The paths run over different switches for redundancy. DomUs: Currently HVMs. Will have about 10 in the end. They use phy: devices pointing to the multipath devices. config files are synced across the Hypervisors (no network storage for avoiding SPOF). HA: (to do) Pacemaker will take care of monitoring DomUs and failing them over. Backup: It seems the only save way to backup DomUs is by shutting them down, so what I do is make sure the storage servers can ssh to the Hypervisors with public key auth. They will shut down the guests, create a...

...RA (with native client) needs the gluster node it connects to (by using the device attribute of the Filsesystem RA) up and running only on startup of the client. After that the native client detects by itself if a gluster node is gone or not. This is correct so far but in my setup this could be a SPOF. I would like to build a cluster of three machines (A,B,C) and start a Filesystem RA clone on all three clusternodes. Each of that nodes is a glusterfs server offering a glusterfs replicated share and also a glusterfs client which mounts that share (from server A initially). If all three servers...

...> > One (or more) non-DC DNS server dealing with AD DNS servers: > That is more simple to achieve: > - just configure AD DNS service as you want (please note that few weeks ago > Samba's internal DNS server was still not able to work as multi-masters > which is needed to avoid SPOF in AD, so IMHO the only valid DNS backend is > bind+DLZ if you want high availability) > - add a new zone to your existing DNS server (the one which is not AD DC) > like that one: > ---------------------------------------------------------------------------------------------- > zone...

Hi Thomas, We need a load balancer to allow for a single URL "entry point" to multiple Icecast servers - we intend to host multiple Icecast servers behind the load balancer so that we can expand / contract capacity as required - we would add servers into the load balancer pool. This also allows us to scale beyond the number of listeners a single Icecast server can support, while still

I'm trying to justify a GlusterFS storage system for my technology development group and I want to get some clarification on something that I can't seem to figure out architecture wise... My storage system will be rather large. Significant fraction of a petabyte and will require scaling in size for at least one decade. from what I understand GlusterFS achieves redundancy through

Hello guys, For those who already have an external DNS server on a separate machine, how the best way to work with Samba4 ? How to integrate this bind server with Samba configuration ways in relation to dns (samba_internal/bind_dlz)

...with AD DNS servers: > >> That is more simple to achieve: > >> - just configure AD DNS service as you want (please note that few weeks > >> ago > >> Samba's internal DNS server was still not able to work as multi-masters > >> which is needed to avoid SPOF in AD, so IMHO the only valid DNS backend > is > >> bind+DLZ if you want high availability) > >> - add a new zone to your existing DNS server (the one which is not AD > DC) > >> like that one: > >> > >> > ----------------------------------------...

...hieve: > > > >> - just configure AD DNS service as you want (please note that few > > weeks > > > >> ago > > > >> Samba's internal DNS server was still not able to work as > > multi-masters > > > >> which is needed to avoid SPOF in AD, so IMHO the only valid DNS > > backend > > > is > > > >> bind+DLZ if you want high availability) > > > >> - add a new zone to your existing DNS server (the one which is not > AD > > > DC) > > > >> like that one: > &gt...

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...her functions on new servers. You can have one or two sendmail servers, two or more AV servers, and add to those as needed. I'll bet that your "not enough" problems are more related to the AV functions than to dovecot. The disadvantage of that is that it keeps the dovecot server as a SPOF. Are you running virtualized infrastructure? If you are, cool. If you're not, and you won't, then you may want to have dovecot on more servers, but then you do it for the redundancy, not for performance! Make sure you get the rest of the redundancy right. For example, partitioning users acr...

...meant for that kind of job. One (or more) non-DC DNS server dealing with AD DNS servers: That is more simple to achieve: - just configure AD DNS service as you want (please note that few weeks ago Samba's internal DNS server was still not able to work as multi-masters which is needed to avoid SPOF in AD, so IMHO the only valid DNS backend is bind+DLZ if you want high availability) - add a new zone to your existing DNS server (the one which is not AD DC) like that one: ---------------------------------------------------------------------------------------------- zone "ad.domain.tld"...

Hi, I would like to share my ZFS filesystem over the network and make it in addition fault tolerant. I am out after performance and fault tolerance, but I do not want to miss the advantages of deduplication, cloning and snapshoting offered by ZFS. I have read something about Lustre being integrated with ZFS, so that could be an option, right? Could I also use, for example, MooseFS? Thanks!

...re AD DNS service as you want (please note that few >> > > weeks >> > > > >> ago >> > > > >> Samba's internal DNS server was still not able to work as >> > > multi-masters >> > > > >> which is needed to avoid SPOF in AD, so IMHO the only valid DNS >> > > backend >> > > > is >> > > > >> bind+DLZ if you want high availability) >> > > > >> - add a new zone to your existing DNS server (the one which is >> not >> > AD >> &gt...