Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) + Dansguardian + Squid. Not much traffic or load. We have 3 ISP & 3 separate teams using 1 ISP each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and consolidate all 3 servers on single server.
Can someone suggest the best way forward ?
Thank you for your time.
Best regards, Sandeep
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) + Dansguardian
- Squid.
Not much traffic or load. We have 3 ISP & 3 separate teams using 1 ISP each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and consolidate all 3 servers on single server.
yes you can. i guess only consideration might be having individual nic per isp and 1 for internal lan.
you can use vmware server if you like on linux as a host if you like
Can someone suggest the best way forward ?
Thank you for your time.
Best regards, Sandeep -- http://mm.glug-bom.org/mailman/listinfo/linuxers
On Tue, Apr 20, 2010 at 11:34 PM, Harsh Busa harsh.busa@gmail.com wrote:
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) + Dansguardian
- Squid.
Not much traffic or load. We have 3 ISP & 3 separate teams using 1 ISP each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and consolidate all 3 servers on single server.
yes you can. i guess only consideration might be having individual nic per isp and 1 for internal lan.
It can also be done with 2 NICs one for LAN and one for external; with bridge-utils to create tap interfaces which in turn are bound to the "external" NIC. In this specific case tap0 <> ISP0, tap1 <> ISP1 etc.
you can use vmware server if you like on linux as a host if you like
Or Linux KVM + userland kvm-qemu tools.
-- Arun Khan
On Wed, Apr 21, 2010 at 12:57 AM, Arun Khan knura9@gmail.com wrote:
On Tue, Apr 20, 2010 at 11:34 PM, Harsh Busa harsh.busa@gmail.com wrote:
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai rscl.mumbai@gmail.com
wrote:
Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) +
Dansguardian
- Squid.
Not much traffic or load. We have 3 ISP & 3 separate teams using 1 ISP each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and consolidate
all
3 servers on single server.
yes you can. i guess only consideration might be having individual nic per isp and 1 for internal lan.
It can also be done with 2 NICs one for LAN and one for external; with bridge-utils to create tap interfaces which in turn are bound to the "external" NIC. In this specific case tap0 <> ISP0, tap1 <> ISP1 etc.
you can use vmware server if you like on linux as a host if you like
Or Linux KVM + userland kvm-qemu tools.
-- Arun Khan
Thx.
Most of the hosting companies offering Virtual Private Servers (VPS) seem to be using Parallels or ZEN. I rarely hear any other name. Any particular reason why they do not use VMWare or VirtualBox or LinuxKVM.
I believe my virtualization server will be similar to the hosted VPS. Pls correct me if I am wrong here. Do ZEN or Parallels offer some easy GUI or some other advantages ?
Thx Sandeep
On Wed, Apr 21, 2010 at 7:12 AM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
On Wed, Apr 21, 2010 at 12:57 AM, Arun Khan knura9@gmail.com wrote:
On Tue, Apr 20, 2010 at 11:34 PM, Harsh Busa harsh.busa@gmail.com
wrote:
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai rscl.mumbai@gmail.com
wrote:
Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) +
Dansguardian
- Squid.
Not much traffic or load. We have 3 ISP & 3 separate teams using 1
ISP
each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and
consolidate
all
3 servers on single server.
yes you can. i guess only consideration might be having individual nic per isp and 1 for internal lan.
It can also be done with 2 NICs one for LAN and one for external; with bridge-utils to create tap interfaces which in turn are bound to the "external" NIC. In this specific case tap0 <> ISP0, tap1 <> ISP1 etc.
you can use vmware server if you like on linux as a host if you like
Or Linux KVM + userland kvm-qemu tools.
-- Arun Khan
Thx.
Hi
Most of the hosting companies offering Virtual Private Servers (VPS) seem to be using Parallels or ZEN. I rarely hear any other name.
Any particular reason why they do not use VMWare or VirtualBox or LinuxKVM.
Maybe LinuxKVM is too recent ..
I believe my virtualization server will be similar to the hosted VPS. Pls correct me if I am wrong here.
The only difference is that if all your VMs have the same OS and the same apps, maybe memory overcommit will work more efficiently. Better RAM utilisation ...
Do ZEN or Parallels offer some easy GUI or some other advantages ?
virt-manager and libvirt provide a consistent UI at least on RH/CentOS if installing a complete OS as Domain-0 - whether it is Xen or KVM...
Thx Sandeep -- http://mm.glug-bom.org/mailman/listinfo/linuxers
Regards
On Wed, Apr 21, 2010 at 9:41 AM, Varad Gupta <varad.gupta@fosteringlinux.com
wrote:
On Wed, Apr 21, 2010 at 7:12 AM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
On Wed, Apr 21, 2010 at 12:57 AM, Arun Khan knura9@gmail.com wrote:
On Tue, Apr 20, 2010 at 11:34 PM, Harsh Busa harsh.busa@gmail.com
wrote:
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai <rscl.mumbai@gmail.com
wrote:
Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) +
Dansguardian
- Squid.
Not much traffic or load. We have 3 ISP & 3 separate teams using 1
ISP
each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and
consolidate
all
3 servers on single server.
yes you can. i guess only consideration might be having individual
nic
per isp and 1 for internal lan.
It can also be done with 2 NICs one for LAN and one for external; with bridge-utils to create tap interfaces which in turn are bound to the "external" NIC. In this specific case tap0 <> ISP0, tap1 <> ISP1 etc.
you can use vmware server if you like on linux as a host if you like
Or Linux KVM + userland kvm-qemu tools.
-- Arun Khan
Thx.
Hi
Most of the hosting companies offering Virtual Private Servers (VPS) seem to be using Parallels or ZEN. I rarely hear any other name.
Any particular reason why they do not use VMWare or VirtualBox or
LinuxKVM.
Maybe LinuxKVM is too recent ..
I believe my virtualization server will be similar to the hosted VPS. Pls correct me if I am wrong here.
The only difference is that if all your VMs have the same OS and the same apps, maybe memory overcommit will work more efficiently. Better RAM utilisation ...
Do ZEN or Parallels offer some easy GUI or some other advantages ?
virt-manager and libvirt provide a consistent UI at least on RH/CentOS if installing a complete OS as Domain-0 - whether it is Xen or KVM...
How about OpenVZ. Anyone having hands-on experience with OpenVZ ?
Thx Sandeep
Buying Xen, vmware license just for 3-servers is not good deal. In same license money you can buy one more server :)
Now Many companies gives free virtulization called visor, hypervisor (no customer support).
VMware has free visor product and very stable for small user based application to high end application. Even microsoft, xen has similar hypervisor product wors well.
Anyway, If you have 3 servers and no storage, not much load on nic traffic, less cpu utilization, no cluster, no fail over, no FT, no DRS required then you can also go with xen, VMware visor.
If you go for free then in case of crash you need backup and paid always good if company is ready to spend money. Regarding easy GUI, once you start using it will be become friendly for you :).
-SL
--- On Thu, 22/4/10, RSCL Mumbai rscl.mumbai@gmail.com wrote:
From: RSCL Mumbai rscl.mumbai@gmail.com Subject: Re: [ILUG-BOM] Need help with Virtualization To: "GNU/Linux Users Group, Mumbai, India" linuxers@mm.ilug-bom.org.in Date: Thursday, 22 April, 2010, 2:04 PM
On Wed, Apr 21, 2010 at 9:41 AM, Varad Gupta <varad.gupta@fosteringlinux.com
wrote:
On Wed, Apr 21, 2010 at 7:12 AM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
On Wed, Apr 21, 2010 at 12:57 AM, Arun Khan knura9@gmail.com wrote:
On Tue, Apr 20, 2010 at 11:34 PM, Harsh Busa harsh.busa@gmail.com
wrote:
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai <rscl.mumbai@gmail.com
wrote:
Hi,
We have 3 Gateway servers -- CentOS 5.3 (non-graphical mode) +
Dansguardian
- Squid.
Not much traffic or load. We have 3 ISP & 3 separate teams using 1
ISP
each, hence we have setup 3 different servers.
I was wondering it it is possible to use virtualization and
consolidate
all
3 servers on single server.
yes you can. i guess only consideration might be having individual
nic
per isp and 1 for internal lan.
It can also be done with 2 NICs one for LAN and one for external; with bridge-utils to create tap interfaces which in turn are bound to the "external" NIC. In this specific case tap0 <> ISP0, tap1 <> ISP1 etc.
you can use vmware server if you like on linux as a host if you like
Or Linux KVM + userland kvm-qemu tools.
-- Arun Khan
Thx.
Hi
Most of the hosting companies offering Virtual Private Servers (VPS) seem to be using Parallels or ZEN. I rarely hear any other name.
Any particular reason why they do not use VMWare or VirtualBox or
LinuxKVM.
Maybe LinuxKVM is too recent ..
I believe my virtualization server will be similar to the hosted VPS. Pls correct me if I am wrong here.
The only difference is that if all your VMs have the same OS and the same apps, maybe memory overcommit will work more efficiently. Better RAM utilisation ...
Do ZEN or Parallels offer some easy GUI or some other advantages ?
virt-manager and libvirt provide a consistent UI at least on RH/CentOS if installing a complete OS as Domain-0 - whether it is Xen or KVM...
How about OpenVZ. Anyone having hands-on experience with OpenVZ ?
Thx Sandeep
On Mon, Apr 26, 2010 at 12:35 PM, sandeep lad sandeeplad309@yahoo.co.in wrote:
Buying Xen, vmware license just for 3-servers is not good deal. In same license money you can buy one more server :)
Now Many companies gives free virtulization called visor, hypervisor (no customer support).
VMware has free visor product and very stable for small user based application to high end application. Even microsoft, xen has similar hypervisor product wors well.
Anyway, If you have 3 servers and no storage, not much load on nic traffic, less cpu utilization, no cluster, no fail over, no FT, no DRS required then you can also go with xen, VMware visor.
If you go for free then in case of crash you need backup and paid always good if company is ready to spend money. Regarding easy GUI, once you start using it will be become friendly for you :).
-SL
Thx Sandeep for your inputs. I will give VMWare ELXi a try and see how it goes.
Best regards,
Greetings,
On Tue, Apr 20, 2010 at 11:20 PM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
I was wondering it it is possible to use virtualization and consolidate all 3 servers on single server.
Surprised nobody mentioned ESXi as a solution.
And oh have a LOT of RAM. and create VMs in LVM directly and not on a filesystem... significant performance difference.
Regards,
Rajagopal
-
Arun Khan -
Harsh Busa -
Rajagopal Swaminathan -
RSCL Mumbai -
sandeep lad -
Varad Gupta