Questions tagged [architecture]

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28 votes
3 answers
26k views

Layer 4 vs Layer 7 Load Balancing

I am trying to decide between using a layer 4 load balancing solution for my datacenter or a layer 7 solution. Unfortunately (for my sanity, that is), my use case is simple enough that both solutions ...
Scrivener's user avatar
  • 3,146
16 votes
1 answer
36k views

x86, i386, i686, amd64, i5, i7, archtecture, processor confusion [closed]

I noticed those items x86, i386, i686, amd64, i5, i7, archtecture, processor from the web, from my own notebook, from book readings. But I am really confused by those terminologies. I try my best ...
Zack's user avatar
  • 319
10 votes
7 answers
9k views

Varnish -> Nginx -> Apache a good idea?

I'm thinking about the architecture for a new Webserver. Would having Varnish as a cache in front of Nginx as a reverse-proxy and serving static files in front of apache for all heavy lifting be a ...
Zoran Zaric's user avatar
10 votes
3 answers
794 views

Architecting network with 10 Mbps half duplex phone system

Current Configuration The diagram below shows our current network architecture. All connections are running at 100 Mbps full duplex with the exception of the TalkSwitch phone systems which run at 10 ...
Matthew Rankin's user avatar
9 votes
6 answers
8k views

Determine Linux Server's Architecture (32 or 64 bit) [duplicate]

I actually just have shared hosting at Dreamhost, and I'm going to use it to test deploying a MongoDB based application. There are 32-bit and 64-bit pre-built distros, but I don't know which I should ...
ehsanul's user avatar
  • 427
8 votes
2 answers
2k views

Architecting your network when you run out of VLANs

This is an entirely hypothetical question, I'm not in this situation now. What happens to your VLAN topology and routing if you run a multi tenant network and you have more than 4096 customers? Do ...
SimonJGreen's user avatar
  • 3,245
8 votes
3 answers
30k views

How to set up Development, Staging, Production, and QA environments

I am in the process of setting up new servers for an organization. What are the standards or best practices for setting up a new environment with Development, Testing, Staging, and Production (or I'm ...
TreK's user avatar
  • 257
7 votes
2 answers
14k views

What server architecture is appropriate for a multiplayer online game?

For an online, multiplayer roleplaying game that should be able to support at least 1000 players per server instance, what sort of architecture should I use? I'd like to use Java or PHP as the server ...
Click Upvote's user avatar
7 votes
12 answers
462 views

Graphical MySQL tools

Are there any good graphical tools (preferably free) for navigating a MySQL database? I find myself doing a lot of the same SQL queries to look at data in the tables. I would imagine there's a GUI ...
Shlomo Shmai's user avatar
7 votes
2 answers
405 views

Really clear introduction to Sharepoint architecture

I think I understand Sharepoint, but to be honest I don't know what I don't know. A link to some clear documentation would be helpful, or short of that, descriptions of what the following are: A Web ...
dunxd's user avatar
  • 9,704
5 votes
8 answers
2k views

Help putting together a server for Routing/Firewall/VPN purposes

we're currently in the process of putting together our own server Firewall/Router. We were going to use a dedicated solution from someone like Juniper or Watchguard, but it is going to be a lot more ...
Django Reinhardt's user avatar
5 votes
7 answers
2k views

Optimizing performance across thousands of SQL Server databases

We are building an application where each client will have their own database. None of the databases are particularly large (20MB to 400MB each), but there will be ~5,000 to start and at any one time ...
Beep beep's user avatar
  • 1,833
5 votes
4 answers
1k views

Geographical DB synchronus mirroring

An architect in our company has designed a solution based on 64 bit SQL2005 Standard edition synchronous mirroring between a physical (4 quad core, 32GB RAM) server and a virtual DR server (4 virtual ...
SuperCoolMoss's user avatar
5 votes
3 answers
3k views

need advice on building a scalable architecture for moodle

I'm looking into designing an architecture for a moodle based education site, it will serve several thousand users at first but needs to be able to grow to support hundreds of thousands to millions of ...
Robert's user avatar
  • 241
5 votes
6 answers
1k views

Running background jobs In a clustered environment

I have an architecture question. In a clustered web app environment, I can think of three ways to deal with background jobs: have a dedicated machine run all the jobs, thus freeing the web servers ...
Peldi Guilizzoni's user avatar
4 votes
8 answers
5k views

Bash can't start a programme that's there and has all the right permissions

This is a gentoo server. There's a programme prog that can't execute. (Yes the execute permission is set) About the file $ ls prog $ ./prog bash: ./prog: No such file or directory $ file prog prog: ...
Amandasaurus's user avatar
  • 32.3k
4 votes
3 answers
6k views

Suggestions on large scale web applications architecture?

It's a big question:) We are running a website with LAMP that is not big, 5 web servers with LVS load balancing, 3 MySQL servers with replications and separation of reading and writing, and we use ...
Mickey Shine's user avatar
4 votes
2 answers
10k views

How does a SAN architecture work and more importantly scale?

I'm trying to understand some SAN infrastructure and I was hoping some of you with more experience than me could help me understand scaling with a SAN. Imagine that you have some computer servers ...
Spence's user avatar
  • 680
4 votes
2 answers
711 views

Google network architecture

I am aware that this question might be closed as "not a real question", "subjective" or even "argumentative". If this is a mistake, I am sorry. I am not good at all at networking but I'm trying to ...
Andrei Rînea's user avatar
4 votes
4 answers
2k views

32 Bit Applications on a 64 Bit OS

Other than memory size limits of 4GB, what is the penalty for running 32 bit applications on an OS running in 64 bit? For example. does a 32 bit application require that it's address space be ...
senfo's user avatar
  • 315
4 votes
3 answers
1k views

Where to go to learn about web architecture? Youtube example? [closed]

I'm trying to build a web application that is similar to Youtube (it's not a knock off), but I guess I don't know how video is served on the internet very well. I know how to build regular database ...
user avatar
4 votes
1 answer
2k views

Colour Coding Convention for Server Architecture Block Diagram

Do any colour coding conventions exist for system architecture block diagrams? If not, who/what would be considered the de-facto standard? Is block diagram the correct terminology in this context? ...
Andy's user avatar
  • 5,250
4 votes
1 answer
149 views

AWS cloud architecture

I'm trying to figure out how to deploy my applications on AWS. I have very limited DevOps experience and I'm not sure if my design is good. I have two application, a web application that handles ...
cmar's user avatar
  • 43
4 votes
1 answer
109 views

Latency issues when inserting content to China [closed]

Background We have an app that will write into a postgres db hosted in Frankfurt datacenter. The app is installed in each of the 8 sites we have around the world, from China, Korea, India , Germany, ...
Andy K's user avatar
  • 119
3 votes
5 answers
3k views

Servers - Buying New vs Buying Second-hand

We're currently in the process of adding additional servers to our website. We have a pretty simple topology planned: A Firewall/Router Server infront of a Web Application Server and Database Server. ...
Django Reinhardt's user avatar
3 votes
5 answers
697 views

Network Designing

I have seven Sites. Each Site contains about 15 to 20 users who are connect via ADSL and lease line. My question is how to design a network infrastructure. To Solve above problem I Create One Domain ...
user avatar
3 votes
8 answers
2k views

How can 24X7 hours availability for an application be achieved?

I was asked this question in an interview: I have a sql server and an asp.net application. I want 24X7 hours availability for my application even if the server crashes. What are the different ways ...
teenup's user avatar
  • 233
3 votes
6 answers
676 views

WAN Design Questions

I've been tasked with redesigning our company's WAN in North America. We have two offices in the U.S., one in NY and one in the midwest. We also have offices in Europe. I won't be touching anything in ...
Citizen Chin's user avatar
3 votes
3 answers
9k views

Why is my LAN saying "unidentified network"? (Help setting up server architecture)

as some of you may be aware, I'm currently involved in an on-going saga in getting our servers up and running. As pretty much a newb, I'm slowly making progress, but I've hit a stumbling block. Here'...
Django Reinhardt's user avatar
3 votes
1 answer
127 views

Installing Windows Server 2008 Once or XP three times?

I have an application which makes use of Outlook 2003, 2007 and 2010. This application performs some tasks requested by a user and then closes. I am going to be putting my application on a virtualised ...
Reece's user avatar
  • 33
3 votes
2 answers
620 views

Too many data replication technologies in environment

It is possible to configure remote data replication at many layers of the storage stack. Some examples to explain what I mean by layers: Physical Volume Layer (TruCopy, SRDF/MirrorView, SnapMirror) ...
Tom Shaw's user avatar
  • 3,762
3 votes
2 answers
7k views

How to set up multiple web and database servers?

My websites have been growing in terms of traffic and the load on the mysql has been increasing. I wanted a solution that would help deal with the increased load on mysql (all queries already ...
Sam's user avatar
  • 51
3 votes
2 answers
242 views

Kubernetes cluster shared storage and backup solutions

Which shared storage solutions are common for Kubernetes cluster to implement shared storage persistence for containers? NFS on NAS / iSCSI somehow? How do you backup the data on a Kubernetes with ...
jwalker's user avatar
  • 108
3 votes
2 answers
712 views

What is your recommendation for a software load balancer or load sharer for the given case?

I have provisioned a server with 8 cores and plan on deploying a network service. For spreading out request load I'd like to run 8 instances of my service. Nothing shocking here. I do not have ...
z8000's user avatar
  • 802
3 votes
2 answers
235 views

Should io and cpu intensive servers be separated in kubernetes cluster?

We are designing a new cluster architecture for our web service and are planing to use Ceph object storage and kubernetes for our services. for optimizing our servers We have different options: Use ...
Mehran Akhavan's user avatar
3 votes
1 answer
2k views

What is the best way to organize my active directory structure [closed]

i would like to adopt the best structure for my active directory domain, in order to be able to apply GPO efficiently. Here is my schema : CompanyName\ServiceName{Users, Groups, Workstations, Laptops} ...
Alex T.'s user avatar
  • 185
3 votes
2 answers
3k views

Best Practice for deploying PHP on multiple servers

I'm currently deploying some PHP Zend applications on my servers and this is currently what I got. 1st Layer - Load-balancer + Http-cache. 2nd Layer - web-server (will have many more webservers in ...
Rodrigo Dellacqua's user avatar
3 votes
1 answer
4k views

Ceph or Gluster for implementing big NAS

We are planning to build NAS solution which will be primarily used via NFS and CIFS and workloads ranging from various archival application to more “real-time processing”. The NAS will not be used as ...
prema's user avatar
  • 33
3 votes
1 answer
29 views

Should our traffic drive our system design or our system design drive our traffic?

A few weeks ago, I have moved to a new company as Linux system administrator, they are going to start a project of moving production servers infrastructure from a data center to Amazon AWS. They are ...
Jubba Smail's user avatar
3 votes
1 answer
2k views

OpenStack multiple compute node resources allocation for single vm instance

Im learning about OpenStack and understand that resources of a single compute node can be allocated and shared between multiple vm instances. If we assume that I have a single application that ...
user avatar
3 votes
2 answers
190 views

One active directory server for one geographical site?

we have an 2008 R2 active directory server on our main site. Recently we opened a small secondary site. My question is pretty simple : our 2 sites are connected with a VPN, is it mandatory for us to ...
Alex T.'s user avatar
  • 185
3 votes
2 answers
4k views

Is it possible to restrict access to specific domain/path through VPN on AWS

Our current setup is: Client -> ALB -> Target Group -> auto-scaled instances We have some urls that we would like to "hide" behind VPN access such as: Client -> VPN -> ALB -> ...
Tomas's user avatar
  • 163
2 votes
3 answers
4k views

LINUX - how can I detect CPU architecture through terminal?

I have a machine on my network that I can only access through ssh, and I want to see if it'll support a 64-bit OS (currently running linux, but I don't know which). Any ideas how to accomplish this ...
sa125's user avatar
  • 325
2 votes
2 answers
7k views

Restricting access to a specific domain on AWS

Our current setup is ALB -> Target Group -> EC2 instances At the moment it's possible to access the EC2 servers behind the load balancer using the IP address of the ALB, the DNS Name (e.g. ...
JamieD's user avatar
  • 231
2 votes
2 answers
432 views

guidelines for large Unix data center setup?

Are there any blogs/ recommended readings on how to setup/configure/manage large ( 500 + ) unix servers in a single / multiple data center ? I am trying to understand best practices, network design ...
vidyarthi's user avatar
2 votes
4 answers
365 views

Architecture and Virtualization

I'm trying to build an architecture with Virtual Servers for J2EE Web applications Hosting. I've no experience in virtualisation. I currently have 1 server whith Apache/Jboss/Postgresq/Proftpd ...
Matthieu's user avatar
  • 443
2 votes
1 answer
355 views

Serving multiple web-service instances [closed]

We're building an API-based web solution on Python which is going to be delivered to individual customers. Each customer is going to have a separate dataset. Currently, it's not a problem to deploy ...
kolypto's user avatar
  • 11.2k
2 votes
1 answer
705 views

SQL Server 2000 HIGH CPU Usage with BusinessObjects reports (unsolvable?)

I have one of those weird questions, those ones that are nearly unsolvable (the only way to really solve them is to throw out the technology and buy new ones). I've had a number of experts (about 10 ...
Riaan's user avatar
  • 147
2 votes
1 answer
471 views

Network (firewall) architecture for a LARGE corporation

I am wondering how many of you who work for LARGE companies have a network architecture that enforces the use of three-separate firewalls to get at the data. In other words: Separation of external (...
user avatar
2 votes
2 answers
887 views

Why is the Kubernetes scheduler a separate process from the controller manager?

This is a question about the design of Kubernetes, I don't have a specific technical problem to solve, but I'm trying to understand the thoughts behind some of its architecture. All explanations about ...
Jakob Odersky's user avatar