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Can't access dfs namespace over vpn

- by cpf

Hi Serverfault, I've recently configured 2 servers in AD on the same domain level. They are physically separated and permanently connected through a site-to-site vpn for dfs replication. All well, but when users connect to either site through vpn (from home e.g.) they can't use the domain level method: \\domain.com\data Internally this works perfectly, resolving domain.com when connected through vpn gets the correct IP. I've tried Google to figure things out. What I was able to find was that more people have this issue, no real solution found though. Can anyone explain why this is happening? Especially a solution would be really helpful! Thanks in advance.

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Options for transparent data encryption on SQL 2005 and 2008 DBs.

- by Dan

Recently, in Massachusetts a law was passed (rather silently) that data containing personally identifiable information, must be encrypted. PII is defined by the state, as containing the residents first and last name, in combination with either, A. SSN B. drivers license or ID card # C. Debit or CC # Due to the nature of the software we make, all of our clients use SQL as the backend. Typically servers will be running SQl2005 Standard or above, sometimes SQL 2008. Almost all client machines use SQL2005 Express. We use replication between client and server. Unfortunately, to get TDE you need to have SQL Enterprise on each machine, which is absolutely not an option. I'm looking for recommendations of products that will encrypt a DB. Right now, I'm not interested in whole disk encryption at all.

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Unable to Uninstall Exchange 2010 ("Internet Newsgroups" public folder)

- by helplessITguy

I am trying to uninstall Exchange 2010, before installing a new instance of Exchange 2010 SP1 on a different server. (Our production Exchange server is 2003) We have met all of the Mailbox uninstall prereqs except for the following: Error: Uninstall cannot continue. Database 'Public Folder Database 1579722947': The public folder database "Public Folder Database 1579722947" contains folder replicas. Before deleting the public folder database, remove the folders or move the replicas to another public folder database. For detailed instructions about how to remove a public folder database, see http://go.microsoft.com/fwlink/?linkid=81409&clcid=0x409. Recommended Action: We have been able to delete all Public Folders in the 2010 storage group except for the one (previously replicated) folder - "Internet Newsgroups". How can I delete this folder without impacting public folders on the production Exchange 2003 server? We have: verified permissions to the public folder removed replication for the folder on (on the Exch 2010 server) tried PowerShell scripts: RemoveReplicaFromPFRecursive Get-PublicFolder -Server "\" -Recurse -ResultSize:Unlimited | Remove-PublicFolder -Server -Recurse -ErrorAction:SilentlyContinue

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need advice for storing data setup hardware for client with 80TB per year of data footprint increase

- by dasko

hi everyone, i currently have a client that will be adding replicated data from satellite locations in the number of approximately 80TB per year. with this said in year 2 we will have 160TB and so on year after year. i want to do some sort of raid 10 or raid 6 setup. i want to keep the servers to approximately 4u high and rack mounted. all suggestions welcome on a replication strategy. we will be wanting to have one instance of the data in house and the other to be co-located (any suggestions on co-locate sites too?). the obvious hardware will be something like a rack mount server with hot swap trays and dual xeon based type processors. the use of the data is for archives of information, files will be made up of small file sizes. i can add or expand to this question if it is too vague. thanks for looking.

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LAMP Server without single failure point + Global Server Load Balancing?

- by José Nobile

I want implement a LAMP Server (Linux Apache MySQL PHP) without a single failure point and with Global Server Load Balancing. I have a server in Cali, Colombia, and other server will be installed in Melbourne, Australia, user in America can use the Cali Server and in Europe, Asia, Africa or Oceania use the Melbourne Server. If any server fail (or load is excessively high), a server must answer all request. Data in MYSQL must be in sync, php files, any configuration in both server must be in sync. I read about of Google DNS Server 8.8.8.8 and 8.8.4.4 and ANY Cast, also about MySQL semisynchronous replication and MySQL Cluster, but what about other things, as crontabs, and the configurations in server? The solution can't depend of APNIC or BGP, only open source software running in Linux.

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Best practice for scaling a single application source to multiple nodes

- by Andrew Waters

I have an application which needs to scale horizontally to cover web and service nodes (at the moment they're all on one) but interact with the same set of databases and source files (both application code and custom assets). Database is no problem, it's handled already with replication in MongoDB. Also, the configuration of the servers are the same (100% linux). This question is literally about sharing a filesystem between machines so that its content is always correct, regardless of the node accessing it. My two thoughts have so far been NFS and SAN - SAN being prohibitively expensive and NFS seeing some performance issues on the second node with regards to glob()ing in PHP. Does anyone have recommended strategies or other techniques that don't involved sharding data across nodes or any potential gotchas in NFS that may cause slow disk seek times? To give you an idea of the scale, the main node initialises it's application modules in ~ 0.01 seconds. The secondary is taking ~2.2 seconds. They're VM's inside a local virtual network in ESXi and ping time between them is ~0.3ms

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Is it faster to create indexes before or after data loading in MySQL?

- by Josh Glover

I have a data replication process that drops and recreates a few tables in a target database, then loads them up with data from a source database (running on another host, but that is immaterial to the question at hand). The target database does need primary keys and a few other indexes on its tables, but not during the data loading. I'm currently loading all of the data, then creating the indexes. However, index creation takes a pretty long time--30 minutes of my data loader's 5 and a half hour running time. My intuition tells me that creating the indexes at the end should be faster than creating them first, since the index would need to be rewritten with each insert. Can anyone tell me for sure which way is faster? FWIW, I'm running MySQL 5.1 with InnoDB tables.

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SQL Server 2008 Log-shipping: Without a UNC drive: how?

- by samsmith

My real question here is... is there a tool I can use? (E.g. I have a lot to do, and would prefer not to script it all up myself!) Anyone using the redgate (hmmm, they had a tool for this, but I do not see it on their web site now...) I have a primary web app at rackspace. Am setting up a backup copy of the app in another data center. I want to use SQL log replication to sync the db. Using SQL Server Web Edition. TIA for suggestions and insight!

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Appropriate Network switch for small server cluster

- by Chris Dutrow

Need to build a small business server cluster for the purpose of crunching data. It will not host a web site that needs to be available 24/7. It does need to support servers that host Redis, a Cassandra database cluster, and a Python web server. Operating system will most likely be Centos 6.4 Other servers in the cluster should be able to communicate very fast with each other, especially the Redis server. This will probably require the use of internal IP addresses. We will need to use multi-data center replication to synchronize the Cassandra cluster with the one that we currently have hosted on the cloud Was looking into network switches and we are unsure of the appropriate specifications that we should be looking for. Does the switch need to be "managed" or can it be "unmanged"? Does the switch need to support IPv6 or just IPv4? Do we need an enterprise level Cisco switch, or can we go with something like a $200 DLink managed (or unmanaged) small business switch? Thanks so much!

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389 DS Achitecture for Multiple Sites

- by Kyle Flavin

I'm looking to deploy 389 Directory in my environment to replace an existing iPlanet installation. I would be using it primarily to store user account data for authentication purposes. I have two physically separate data centers that I would like to share the same directory tree. My initial thinking is to setup 389 DS as follows: -A Master/Consumer in DataCenter A -A Master/Consumer in DataCenter B -Replication agreement between both masters, to mirror the directory tree in both environments. Does this sound like a reasonable approach? Is there a better way to do it? (ie: four masters?) Is there documentation for best practices when setting up 389 DS in situations such as this? Thanks.

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MSSQL: Choice of service accounts

- by Troels Arvin

When installing MS SQL Server 2008, one needs to associate a service account with the installation (possibly even several accounts, one for the SQL Server Agent, one for Analysis Services, ..., but let's leave that for the case of simplicity). The service account may be local account, or a Windows domain account. If a domain account is used: Can MSSQL start, if connectivity to the domain controllers is temporarily down? If the answer is yes: Should each DBMS instance on each server have a separate account, or does it make sense to use a particular "MSSQL" domain account on all MSSQL-installations in the organization? If separate accounts are used for each instance on each server: Does it make sense to create a special MSSQL security group in the domain and place all the MSSQL service accounts in that group, perhaps to ease replication, etc? Is there a common, generally accepted naming convention for MSSQL service account(s)?

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How to efficiently dump a huge MySQL innodb database?

- by Jagbir

I got an Ubuntu 10.04 production MySQL database server where total size of database is 260 GB while size of root partition is itself 300 GB where DB is stored, essentially means around 96% of / is full and there's no space left for storing dump/backup etc. No other disk is attached to server as of now. My task is to migrate this database to other server sitting in different datacenter. Question is how to do that efficiently with minimum downtime? I'm thinking in line of: Request to attach an extra drive to server and take a dump in that drive. Transfer dump to new server, restore it and make new server slave of existing one to keep data in sync When migration is needed, break replication, update slave config to accept read/write requests and make old server read-only so it won't entertain any write requests and tell app developers to update there config with new IP address for db. What's your suggestions to improve this or any alternate better approach for this task?

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Powershell and DfsrConfigurationFromAD - how to check all servers are updated?

- by user57792

I have two Win2012R2 servers (SERVER1 and SERVER2) that uses DFS Replication for keeping a couple of folders synchronized. Using the following Powershell-script that i run on SERVER1 I disconnect it from the group: Set-DfsrConnection -GroupName "Group1" -SourceComputerName "SERVER1" -DestinationComputerName "SERVER2" -DisableConnection $True; And to update both the servers with the configuration I run the command: Update-DfsrConfigurationFromAD -ComputerName "SERVER1","SERVER2" Now the question is, how can check on SERVER1 that SERVER2 has gotten the updated information from the AD so that I can be sure that the connection has been disabled? Usually it takes around 10-30 seconds after the Update-DfsrConfigurationFromAD command has been run before the DFS Management on SERVER2 gets updated but I need some kind of a "check and sleep loop" in my code. I've tried checking event logs and using Invoke-Command {Get-DfsrConnection} from PM-SERVER01 but nothing seems to work.

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Transfer an account from a 'dead' domain

- by PJC

So - following from my previous question: How do I stop DFSR replication preventing a Domain Controller from advertising Domain Services?, I lost the FSMO DC, and my only other DC was in an unrecoverable state. I've created a new domain to continue my testing, but now have an issue which I suspect is relevant to any domain suffering a "catastrophe". I have user accounts and client PCs "on the old domain". (Actually 1 client PC and 3 accounts) I can still sign into the client PC as any of those users on the "dead" domain, because that is cached. There are (thankfully) no encrypted files in the "old" domain. What I would now like to do is migrate the full content (files, preferences, etc) from the "dead" domain to the new "live" domain for any/all user accounts, for the "old" PC. Is there anything out there which can assist me in doing so?

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configuring uppercut for automated build

- by deepasun

This is my cc.net's config file. http://confluence.public.thoughtworks.org/display/CCNET/Configuration+Preprocessor -- -- --  <cb:define name="WindowsFormsApplication1"> <project name="$(projectName)"> <workingDirectory>$(working_directory)\$(projectName)</workingDirectory> <artifactDirectory>$(drop_directory)\$(projectName)</artifactDirectory> <category>$(projectName)</category> <queuePriority>$(queuePriority)</queuePriority> <triggers> <intervalTrigger name="continuous" seconds="60" buildCondition="IfModificationExists" /> </triggers> <sourcecontrol type="svn"> <executable>c:\program files\subversion\bin\svn.exe</executable>  <trunkUrl>$(svnPath)</trunkUrl> <workingDirectory>$(working_directory)\$(projectName)</workingDirectory> </sourcecontrol> <tasks> <exec> <executable>$(working_directory)\$(projectName)\build.bat</executable> </exec> </tasks> <publishers> <merge> <files> <file>$(working_directory)\$(projectName)\build_output\build_artifacts\*.xml</file> <file>$(working_directory)\$(projectName)\build_output\build_artifacts\mbunit\*-results.xml</file> <file>$(working_directory)\$(projectName)\build_output\build_artifacts\nunit\*-results.xml</file> <file>$(working_directory)\$(projectName)\build_output\build_artifacts\ncover\*-results.xml</file> <file>$(working_directory)\$(projectName)\build_output\build_artifacts\ndepend\*.xml</file> </files> </merge>  <xmllogger/> <statistics> <statisticList> <firstMatch name="Svn Revision" xpath="//modifications/modification/changeNumber" /> <firstMatch name="ILInstructions" xpath="//ApplicationMetrics/@NILInstruction" /> <firstMatch name="LinesOfCode" xpath="//ApplicationMetrics/@NbLinesOfCode" /> <firstMatch name="LinesOfComment" xpath="//ApplicationMetrics/@NbLinesOfComment" /> </statisticList> </statistics> <modificationHistory onlyLogWhenChangesFound="true" /> <rss/> </publishers> </project> </cb:define> <cb:WindowsFormsApplication1 projectname="WindowsFormsApplication1" queuepriority="80" svnpath="http://192.168.1.8/trainingrepos/deepasundari/WindowsFormsApplication1" /> It is not producing the build directory in code_drop, but updating reports.xml with updated build.. wht is the problem?

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Delivery Status Notification (Relay) in Exchange Server 2007 with original email attachment

- by Nick Kavadias

I have recently setup Exhchange Server 2007. The server is smarthosting outgoing messages. Users have 'request delivery receipt' on by default their 'auditing' purposes in Outlook. They would like the original email attached to the delivery notification as was the case in Exchange Server 2003. I need this same functionality in 2007. The question has been asked here, here and here but cannot find a valid solution. Here's some information about the functionality in Exchange 2003. The question is, can i replication this functionality in 2007? Here is what a 2007 delivery message looks like: I know it's possible to customize DSN's. Can I make a custom DSN for this type of message and have the original included as an attachment? Anyone got any other ideas?

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Backup Solr home

- by user226188

I'm new to Solr: I've successfully installed Tomcat and Solr 4.3.1 webapp, and two collections on a CentOS 6.4 machine. Now, my server is in production and I need to make backups of solr. So, I would like to know what is the best way to backup solr... For the moment I'm dooing: stop tomcat = tar of my solr home = start tomcat, but I've read that is not a good solution? Moreover, this implie to stop all the tomcat which have other webapps than solr. I've also heard that there is a script named "backup" in solr home bin's folder ? but my bin folder is empty :( I don't want to make an another slave server with replication, for me it's not a backup solution because my backup are supposed to be send to a bacula backup server all nights. There is no builtin solution that I can work around to make a script ? like a mysqldump for Mysql servers. Thanks for help !

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Advice on off-site backup of Hyper-V Failover Cluster

- by Paul McCowat

We are currently setting up a Server 2008 R2 which will be off-site over a leased line with VPN. At the main site is 2 x Hyper-V hosts in a failover cluster with PowerVault M3000i iSCSI SAN. We are using BackupAssist for local backups and each host backups up itself and it's guests nightly creating a 500GB backup each which is copied to a 2TB rotated NAS drive. Files and SQL DB's are also backed up / log shipped etc. Looking for the best way to backup the Hyper-V VM's and copy them off-site so that the OS's are only a month old and the data is a day old. The main backups are too large to transfer between backups so options discussed so far are: Take rotating individual backups of the VM's each day and copy over, Day 1 SQL VM, Day 2 Exchange VM etc, would require more storage. Look in to Hyper-V snapshots, however don't believe these are supported in clustering. 3rd party replication tools

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Start TLS and 389 Directory

- by Kyle Flavin

I'm trying to configure Start TLS on 389 Directory server, but I'm having all sorts of issues. I've been following this doc: https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/managing-certs.html which specifies that I should create a certificate for both the directory server and admin server. I've imported the CA cert on both servers. I've tried to use the same server certificate for both. It will not allow me to do so. However, the admin and directory servers reside on the same host. If I generate a new certificate it will need to use the same hostname. I'm not sure if that's valid... Has anyone out there set this up before? Any direction would be helpful. I have multmaster replication set up. From an external client, I'm attempting to do an ldapsearch -ZZ -x -h "myhost" -b "dc=example,dc=com" -D "cn=Directory Manager" -W "", and I'm getting a protocol error.

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Exchange 2010 and DAG - all roles on both servers?

- by Keith

We just recently migrated to an Exchange 2010 server. Currently all of the roles and mailboxes are installed on 1 server (we are a small company with less than 100 users). I am wanting to use DAG for replication however it seems most set ups for DAG requires at least 3 or 4 total servers. Is there anyway to make this work with just two servers and both of these servers would have all the roles and mailboxes? Maybe there is a better way to do this than DAG? I'm open for suggestions. The goal here is to have some sort of replicated server so that if there is an issue with our primary Exchange server, another one can be brought up within an hour or so with all current information (not a backup). It doesn't necessarily have to be instantaneous.

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How to setup a simple Ubuntu Server Tomcat cluster on VirtualBox for testing?

- by Alex Pakka

I am looking for a step by step instructions to setup at leat two (and later more) simple Ubuntu Virtual Core 12.10 Server VMs on Oracle VirtualBox under Windows 7 64bit. The test setup would be: Apache HTTP server on the Windows host acting as a Load Balancer. The result will be that going to http://localhost:8080 would balance between two nodes and prove session replication. Two lean, small footprint Ubuntu Server guest nodes with Java 7 and Tomcat 7. The intention is to help everyone doing High Availability / Load Balancing development and testing to create a reasonable environment on the local workstation or mainstream notebook in as little time as possible.

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Apache mod_wsgi elegant clustering method

- by Dr I

I'm currently trying to build a scalable infrastructure for my Python webservers. Actually, I'm trying to find the most elegant way to build a scalable cluster to host all my Python WebServices. For now, I'm using three servers like this: 1 x PuppetMaster to deploy my servers. 2 x Apache Reverse Proxy Front-end servers. 1 x Apache HTTPd Server which host the Python WSGI Applications and binded to using mod_wsgi. 4 x MongoDB Clustered server. Everything is OK concerning the Reverse proxy and the DB Backend, I'm able to easily add a new Reverse Proxy and a new DB Node, but my problem is about the Python WebServer. I thinked to just provision a new node with exactly the same configuration and a rsync replication between the two nodes, but It's not really usefull in term of deployement for my developpers etc. So if you have a solution which is as efficient and elegant that the Tomcat Cluster I'll be really happy to ear it ;-)

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MySQL - complete server migration (Ubuntu) [closed]

- by Mr A

Possible Duplicate: How to copy and move mysql database Dump all databases with SSH access I'm setting up a new dev machine, and I have the old one sitting right next to me. I'd like to do an exact copy of all MySQL structures and data from the old machine to the new. Nothing fancy needs to happen (it's a dev machine). No replication. I don't care about "downtimes" etc. Is there a super simple way to do this? For example, I have SSH on the old server, can I just use Nautilus, do a connect to server, and then transfer a folder over, replacing another folder with it and be done? It's the same version of MySQL on both sides. Same version of Ubuntu. Same in most respects.

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Dynamically changing one-node Cassandra cluster to two nodes

- by Jason Axelson

So I have an application that will be very dormant most of the time but will need high-bursting a few days out of the month. Since we are deploying on EC2 I would like to keep only one Cassandra server up most of the time and then on burst days I want to bring one more server up (with more RAM and CPU than the first) to help serve the load. What is the best way to do this? Should I take a different approach? Some notes about what I plan to do: Bring the node up and repair it immediately After the burst time is over decommission the powerful node Use the always-on server as the seed node My main question is how to get the nodes to share all the data since I want a replication factor of 2 (so both nodes have all the data) but that won't work while there is only one server. Should I bring up 2 extra servers instead of just one?

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Transaction log is full and does not free up space

- by titanium

Hi, I have a database in SQL Server 2005 whose transaction log becomes full. It is using snapshot replication. I noticed the transaction log is not freeing up space. So I created an additional transaction log. Three days has passed and this first transaction log is still full. I performed a full database backup and transaction backup. Then I tried to shrink the transaction log but the shrink failed. Can anyone advise why shrinking transaction log is failing? ANy other recommendation on how to resolve the problem?

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